Warren Franke - Academia.edu (original) (raw)

Papers by Warren Franke

Research paper thumbnail of Seven Consecutive Days of Remote Ischemic Preconditioning Improved Cutaneous Vascular Reactivity Induced by Post Occlusive Reactive Hyperemia

Research paper thumbnail of Intergenerational exergaming physical activity program increases flexibility and strength in older adults

Research paper thumbnail of Are Your Students Flipping Prepared

The flipped classroom design is becoming a popular trend among college courses. In order for this... more The flipped classroom design is becoming a popular trend among college courses. In order for this design to be successful, students must come to class prepared. The purpose of the current study was to evaluate the effectiveness of a class prepared assignment (CPA) in a senior undergraduate Kinesiology laboratory with a flipped design. All participants were required to watch weekly videos prior to coming to a 2-hour lab, once a week. Participants were either in a laboratory section where no CPAs were assigned (control, n = 49) or in a laboratory section where CPAs were assigned (experimental, n = 49). Laboratory quiz scores, percentage of weekly videos watched, multiple video views, and reported student preparedness were compared between groups. The results showed statistically significant differences in laboratory quizzes, percentage of weekly videos watched, and multiple video views. No statistically significant difference was found between reported student preparedness. Class prep...

Research paper thumbnail of Assessment of Recall Versus Recognition in Online Learning and the Impact on Retention

A strong body of evidence reveals that quizzing students using low stakes assessments enhances le... more A strong body of evidence reveals that quizzing students using low stakes assessments enhances learning and retention compared to not quizzing. In regards to learning and retention, the way in which students are quizzed is also important. Recall or retrieval practice has shown to enhance learning and increase retention compared to recognition quizzing. The current study evaluated the used of low stakes recall vs. recognition assessments in a hybrid course with weekly online lectures. Participants were divided into either the recall (n = 140) or recognition (n = 111) group. Average participation in low stakes assessments, percentage scores on high stakes assessments, and final exam percentage were compared between groups. The results revealed a significant difference between average low stakes assessment participation. No other statistically significant differences were found. Our study results did not find a signification difference between recall and recognition assessments in onli...

Research paper thumbnail of Evaluating the Value of Dynamic Terrain Simulation on Training Quality

Warfighters perform a variety of civilian duties, such as construction. For example, in Iraq, fro... more Warfighters perform a variety of civilian duties, such as construction. For example, in Iraq, from 2004-2011, the US Army carried out over 5,000 construction projects. Training warfighters on heavy construction equipment is a timeconsuming task that contrasts with shrinking military budgets. Simulation-based training offers improved training for fewer resources. Simulators can decrease time to task proficiency by up to 90%. Identifying the pertinent features needed for a construction equipment trainer is challenging. For example, a critical skill is identifying different soil types. Lifting too much soil can damage equipment while not taking enough can cause significant delays. An experimental study investigated the effectiveness of a virtual excavator trainer with particular attention to the use of a high-fidelity soil simulation and its effect on learning. The experiments included two soil types: clay (hard to handle, high mechanical integrity) and sand (easy to handle, reduced me...

Research paper thumbnail of The effectiveness of adaptive training for stress inoculation in a simulated astronaut task

Proceedings of the Human Factors and Ergonomics Society Annual Meeting

Astronauts operate in an environment with multiple hazards that can develop into life-threatening... more Astronauts operate in an environment with multiple hazards that can develop into life-threatening emergency situations. Managing stress in emergencies may require cognitive resources and lead to diminishing performance. Stress training aims to maintain performance under stress by methodically increasing stressor levels to build inoculation against stress. An adaptive virtual reality (VR) training system was developed with real-time stress detection by using machine learning on psychophysiological responses. Using a VR simulation of a spaceflight emergency fire, stress classifications were used to trigger adaptations of the VR environmental stressors (e.g., smoke, alarms, flashing lights), with the goal of maintaining a manageable level of stress during training. Fifty-seven healthy subjects underwent task training over eight trials with adaptive training (adaptive, n=19); results were compared to trials with predetermined gradual increases in stressors (graduated, n=18), and with tr...

Research paper thumbnail of How Does Rescuer Fitness Affect the Quality of Prolonged Cardiopulmonary Resuscitation?

Prehospital Emergency Care

OBJECTIVE High quality cardiopulmonary resuscitation (CPR) is crucial for patients experiencing c... more OBJECTIVE High quality cardiopulmonary resuscitation (CPR) is crucial for patients experiencing cardiac arrest. CPR quality declines within the first few minutes of CPR performance. Being more fit is associated with higher CPR quality, yet the fitness parameters needed remain uncertain. It is also unknown how CPR quality is affected during a protocol of realistic CPR when rescuers switch compressors every two minutes, as recommended by the American Heart Association (AHA), and extended duration, as might be encountered with an out-of-hospital cardiac arrest. The purpose of the present study is to determine the extent to which different measures of physical fitness predict high quality CPR performance when rescuers follow current CPR guidelines. METHODS Subjects underwent a fitness assessment evaluating lower back muscular endurance, abdominal muscular endurance, upper body muscular strength, and upper body anaerobic power. At least 48 hours later, subjects returned to the laboratory for CPR testing. CPR quality was determined by compression rate (>100/minute), compression depth (>2 inches, or 50mm), and adequate (full) chest recoil between compressions, based on American Heart Association guidelines. A CPR Quality Score, designed to represent cardiac output, was calculated as the product of compression rate and depth. RESULTS Thirty-three of 42 subjects were able to achieve a CPR Quality Score greater than 5000, the minimum needed to meet AHA recommendations. Higher anaerobic power and bench press scores were predictive of both high CPR Quality Scores (R2=0.47) and compression depth (R2=0.47). Sex (female) was predictive of better chest compression recoil percentages (R2=0.15). CONCLUSION Most rescuers can maintain high quality CPR if given two minute breaks between cycles. Rescuers with high anaerobic fitness and muscular strength may be able to provide higher quality CPR.

Research paper thumbnail of Endothelial-dependent Cutaneous Vasodilatory Responses To Single Bout Of Remote Ischemic Preconditioning

Medicine & Science in Sports & Exercise

15-min seated rest, exercise, and a 180-min seated recovery. Excess post exercise oxygen consumpt... more 15-min seated rest, exercise, and a 180-min seated recovery. Excess post exercise oxygen consumption (EPOC) magnitude was calculated as area under the curve from netVO2 (VO2 VO2 at rest) during the first 90 minutes post-exercise. EE was calculated from VO2 during exercise and recovery. Fat oxidation (FatOx) and carbohydrate oxidation (CarbOx) rates were calculated from VO2 and VCO2 at rest, 1, 2 and 3 hrs post-exercise. Enjoyment was assessed post-exercise using the physical activity enjoyment scale (PACES). RESULTS: EPOC magnitude was similar among trials (LIIE = 4.87 ± 2.60 L*min, BFR = 6.59 ± 2.33 L*min, HIIE= 6.56 ± 2.01 L*min; p = 0.06). Total EE was different between BFR (321.6 ± 30.1 kcals), HIIE (254.5 ± 33.5 kcals), and LIIE (287.1 ± 25.5 kcals) (p<0.05). FatOx in BFR (1hr = 0.14 ± 0.01 g*min, 3hr = 0.11 ± 0.01 g*min) was greater than LIIE (1hr = 0.08 ± 0.02 g*min, 3hr = 0.9 ± 0.02 g*min), but not different from HIIE (1hr = 0.12 ± 0.02 g*min, 3hr = 0.09 ± 0.01 g*min) (main effect of trial; p<0.05). CarbOx during BFR (3hr = 0.16 ± 0.03 g*min) was less than LIIE (3hr = 0.19 ± 0.03 g*min) and HIIE (3hr = 0.23 ± 0.05 g*min) (main effect of trial). There were no differences in PACES scores. CONCLUSIONS: This study suggests that the addition of intermittent BFR to LIIE may result in greater EE but similar substrate utilization and enjoyment as HIIE, albeit at a lower work rate.

Research paper thumbnail of Seven Days Of Remote Ischemic Preconditioning Augmented Local-heating Induced Vasodilation In Human Skin

Medicine & Science in Sports & Exercise

Research paper thumbnail of Evaluating the Effectiveness of Graduated Stress Exposure in Virtual Spaceflight Hazard Training

Journal of Cognitive Engineering and Decision Making

Psychological and physiological stress experienced by astronauts can pose risks to mission succes... more Psychological and physiological stress experienced by astronauts can pose risks to mission success. In clinical settings, gradually increasing stressors help patients develop resilience. It is unclear whether graduated stress exposure can affect responses to acute stressors during spaceflight. This study evaluated psychophysiological responses to potentially catastrophic spaceflight operation, with and without graduated stress exposure, using a virtual reality environment. Twenty healthy participants were tasked with locating a fire on a virtual International Space Station (VR-ISS). After orientation, the treatment group ( n = 10) practiced searching for a fire while exposed to a low-level stressor (light smoke), while the control group ( n = 10) practiced without smoke. In the testing session, both groups responded to a fire while the VR-ISS unexpectedly filled with heavy smoke. Heart rate variability and blood pressure were measured continuously. Subjective workload was evaluated ...

Research paper thumbnail of Gerontological education: course and experiential differences across academic colleges

Gerontology & Geriatrics Education

A knowledgeable workforce is key to meeting the demands of an aging population that is expected t... more A knowledgeable workforce is key to meeting the demands of an aging population that is expected to nearly triple by 2030 and their attitudes influence propensity to seek aging-related careers. Postsecondary education offers an opportunity to increase aging-related knowledge and facilitates intergenerational experiential-learning opportunities; however, research is lacking regarding attitudes toward aging and experiences among an academically diverse sample. To address this gap, the aims of this study were to (1) examine differences in students&amp;amp;amp;amp;#39; attitudes toward older adults by academic college, (2) assess differences in aging-related coursework and course experiences by academic college, and (3) explore key factors associated with students&amp;amp;amp;amp;#39; attitudes toward older adults. Online survey methodology was used with a sample of 816 undergraduate students from a single university who represented all academic colleges offering undergraduate degrees. Significant differences among students&amp;amp;amp;amp;#39; attitudes toward older adults by academic college were noted: those enrolled in the College of Human Sciences reported better stereotype, separation, and affective attitudes. Furthermore, factors associated with students&amp;amp;amp;amp;#39; aging-related attitudes were sex, affiliation with academic college, perception of &amp;amp;amp;amp;quot;old,&amp;amp;amp;amp;quot; contact frequency, and desire to learn aging-related content. The authors suggest interdisciplinary and disciplinary-specific educational recommendations to improve students&amp;amp;amp;amp;#39; attitudes toward older adults.

Research paper thumbnail of Comparative effectiveness of guided weight loss and physical activity monitoring for weight loss and metabolic risks: A pilot study

Preventive medicine reports, 2017

Many consumer-based physical activity monitors (PAMs) are available but it is not clear how to us... more Many consumer-based physical activity monitors (PAMs) are available but it is not clear how to use them to most effectively promote weight loss. The purpose of this pilot study was to compare the effectiveness of a personal PAM, a guided weight loss program (GWL), and the combination of these approaches on weight loss and metabolic risk. Participants completed the study in two cohorts: Fall 2010 and Spring 2011. A sample of 72 obese individuals in the Ames, IA area were randomized to one of 3 conditions: 1) (GWL, N = 31), 2) PAM, N = 29, or 3) a combination group (PAM + GWL, N = 29). Weight and metabolic syndrome score (MetS), computed from waist circumference (WC), BMI, blood pressure (BP), and lipids were assessed at baseline and following an 8-week intervention. Weight was also assessed four months later. Two-way (Group × Time) ANOVAs examined intervention effects and maintenance. Effect sizes were used to compare magnitude of improvements among groups. During the intervention, a...

Research paper thumbnail of Graduated Stress Exposure of Spaceflight Hazards in a Virtual Environment

Research paper thumbnail of Associations of Health Club Membership with Physical Activity and Cardiovascular Health

PLOS ONE, 2017

Introduction This study evaluates whether a health club membership is associated with meeting the... more Introduction This study evaluates whether a health club membership is associated with meeting the US physical activity (PA) guidelines and/or favorable cardiovascular health. Methods Using cross-sectional data of health club members (n = 204) and non-members (n = 201) from April to August 2013, this is the first study to our knowledge to examine a health club membership in relation to objectively measured cardiovascular health indicators including resting blood pressure, resting heart rate, body mass index, waist circumference, and cardiorespiratory fitness based on a non-exercise test algorithm. To determine the total PA and sedentary time, this study used a comprehensive PA questionnaire about both aerobic and resistance activities at the health club, as well as lifestyle activities in other settings, which was developed based on the International Physical Activity Questionnaire (IPAQ). Results The odds ratios (95% confidence interval) of meeting either the aerobic, resistance, or both aerobic and resistance PA guidelines for members compared to non-members were 16.5 (9.8-27.6), 10.1 (6.2-16.3), and 13.8 (8.5-22.4), respectively. Significant associations of health club membership with more favorable cardiovascular health outcomes and sedentary behavior were observed for resting heart rate (B:-4.8 b/min, p<0.001), cardiorespiratory fitness (B: 2.1 ml/kg/min, p<0.001), and sedentary time (B:-1.4 hours, p<0.001). Participants with a health club membership of >1 year had more favorable health outcomes, with a smaller waist circumference (men, B:-4.0 cm, p = 0.04; women, B:-3.4 cm, p = 0.06), compared to non-members. Conclusions Health club membership is associated with significantly increased aerobic and resistance physical activity levels and more favorable cardiovascular health outcomes compared to non-members. However, longitudinal, randomized controlled trials would be clearly warranted as cross-sectional data prohibits causal inferences.

Research paper thumbnail of Sub-Classifying Type 2 Diabetes by Combining Nonlinear Dynamic Modeling and Multivariate Classification Methods

Research paper thumbnail of Preliminary Exercise Identity Scale (EIS) norms for three adult samples

Journal of Sport Behavior, 2001

Research paper thumbnail of Promoting the Congregate Meal Program to the Next Generation of Rural-Residing Older Adults

Journal of nutrition in gerontology and geriatrics

Despite a growing older adult population, Iowa Congregate Meal Program (CMP) participation has de... more Despite a growing older adult population, Iowa Congregate Meal Program (CMP) participation has declined. Motivators and barriers to congregate mealsite participation and wellness programming preferences of baby boomers and older adults were examined to provide insight to how to revise and better promote the CMP for the next generation of older adults. Four focus group sessions were conducted with 27 primarily White, rural-residing adults, ages 48-88 years. Participation motivators included educational programs, food, and socialization while barriers included negative perceptions and stereotypes associated with congregate mealsites. Desired wellness programs were viewed as interactive and relevant. Healthcare was the leading wellness need with financial management and physical activity cited as the most-wanted topics of wellness programs. These results provide insight on factors, aside from funding, that may be adversely impacting CMP participation and identifies areas for further in...

Research paper thumbnail of Association of exercise identity with measures of exercise commitment and physiological indicators of fitness in a law enforcement cohort

Journal of Sport Behavior, Aug 31, 1998

Research paper thumbnail of The Potential of Three Computer-Based Communication Activities for Supporting Older Adult Independent Living

Information, 2016

Technology has become an increasingly integral part of life. For example, technology allows indiv... more Technology has become an increasingly integral part of life. For example, technology allows individuals to stay in touch with loved ones, obtain medical services through telehealthcare, and enjoy an overall higher quality of life. Particularly for older adults, using technology increases the likelihood that they will maintain their independence and autonomy. Long-distance caregiving has recently become a feasible option where caregivers for older adults can access reports and information about their loved one's patterns that day (e.g., food and medication intake). Technology may be able to offset age-related challenges (e.g., caregiving, accessing healthcare, decreased social networks) by applying technology to the needs of older adults. Solutions for meeting such challenges, however, have been less targeted. In addition, the healthcare system is evolving to focus on providing options and services in the home. This has direct implications for older adults, as the majority of healthcare services are utilized by older adults. Research is still at the beginning stages of developing successful technology tools that are compatible with older adult users. Therefore, the design, implementation, and outcome of such computer-based communication activities will be discussed in this paper in order to guide future endeavors in technology marketed for older adults.

Research paper thumbnail of VirtuTrace: Training for Making Decisions under Stress in virtual environments

Research paper thumbnail of Seven Consecutive Days of Remote Ischemic Preconditioning Improved Cutaneous Vascular Reactivity Induced by Post Occlusive Reactive Hyperemia

Research paper thumbnail of Intergenerational exergaming physical activity program increases flexibility and strength in older adults

Research paper thumbnail of Are Your Students Flipping Prepared

The flipped classroom design is becoming a popular trend among college courses. In order for this... more The flipped classroom design is becoming a popular trend among college courses. In order for this design to be successful, students must come to class prepared. The purpose of the current study was to evaluate the effectiveness of a class prepared assignment (CPA) in a senior undergraduate Kinesiology laboratory with a flipped design. All participants were required to watch weekly videos prior to coming to a 2-hour lab, once a week. Participants were either in a laboratory section where no CPAs were assigned (control, n = 49) or in a laboratory section where CPAs were assigned (experimental, n = 49). Laboratory quiz scores, percentage of weekly videos watched, multiple video views, and reported student preparedness were compared between groups. The results showed statistically significant differences in laboratory quizzes, percentage of weekly videos watched, and multiple video views. No statistically significant difference was found between reported student preparedness. Class prep...

Research paper thumbnail of Assessment of Recall Versus Recognition in Online Learning and the Impact on Retention

A strong body of evidence reveals that quizzing students using low stakes assessments enhances le... more A strong body of evidence reveals that quizzing students using low stakes assessments enhances learning and retention compared to not quizzing. In regards to learning and retention, the way in which students are quizzed is also important. Recall or retrieval practice has shown to enhance learning and increase retention compared to recognition quizzing. The current study evaluated the used of low stakes recall vs. recognition assessments in a hybrid course with weekly online lectures. Participants were divided into either the recall (n = 140) or recognition (n = 111) group. Average participation in low stakes assessments, percentage scores on high stakes assessments, and final exam percentage were compared between groups. The results revealed a significant difference between average low stakes assessment participation. No other statistically significant differences were found. Our study results did not find a signification difference between recall and recognition assessments in onli...

Research paper thumbnail of Evaluating the Value of Dynamic Terrain Simulation on Training Quality

Warfighters perform a variety of civilian duties, such as construction. For example, in Iraq, fro... more Warfighters perform a variety of civilian duties, such as construction. For example, in Iraq, from 2004-2011, the US Army carried out over 5,000 construction projects. Training warfighters on heavy construction equipment is a timeconsuming task that contrasts with shrinking military budgets. Simulation-based training offers improved training for fewer resources. Simulators can decrease time to task proficiency by up to 90%. Identifying the pertinent features needed for a construction equipment trainer is challenging. For example, a critical skill is identifying different soil types. Lifting too much soil can damage equipment while not taking enough can cause significant delays. An experimental study investigated the effectiveness of a virtual excavator trainer with particular attention to the use of a high-fidelity soil simulation and its effect on learning. The experiments included two soil types: clay (hard to handle, high mechanical integrity) and sand (easy to handle, reduced me...

Research paper thumbnail of The effectiveness of adaptive training for stress inoculation in a simulated astronaut task

Proceedings of the Human Factors and Ergonomics Society Annual Meeting

Astronauts operate in an environment with multiple hazards that can develop into life-threatening... more Astronauts operate in an environment with multiple hazards that can develop into life-threatening emergency situations. Managing stress in emergencies may require cognitive resources and lead to diminishing performance. Stress training aims to maintain performance under stress by methodically increasing stressor levels to build inoculation against stress. An adaptive virtual reality (VR) training system was developed with real-time stress detection by using machine learning on psychophysiological responses. Using a VR simulation of a spaceflight emergency fire, stress classifications were used to trigger adaptations of the VR environmental stressors (e.g., smoke, alarms, flashing lights), with the goal of maintaining a manageable level of stress during training. Fifty-seven healthy subjects underwent task training over eight trials with adaptive training (adaptive, n=19); results were compared to trials with predetermined gradual increases in stressors (graduated, n=18), and with tr...

Research paper thumbnail of How Does Rescuer Fitness Affect the Quality of Prolonged Cardiopulmonary Resuscitation?

Prehospital Emergency Care

OBJECTIVE High quality cardiopulmonary resuscitation (CPR) is crucial for patients experiencing c... more OBJECTIVE High quality cardiopulmonary resuscitation (CPR) is crucial for patients experiencing cardiac arrest. CPR quality declines within the first few minutes of CPR performance. Being more fit is associated with higher CPR quality, yet the fitness parameters needed remain uncertain. It is also unknown how CPR quality is affected during a protocol of realistic CPR when rescuers switch compressors every two minutes, as recommended by the American Heart Association (AHA), and extended duration, as might be encountered with an out-of-hospital cardiac arrest. The purpose of the present study is to determine the extent to which different measures of physical fitness predict high quality CPR performance when rescuers follow current CPR guidelines. METHODS Subjects underwent a fitness assessment evaluating lower back muscular endurance, abdominal muscular endurance, upper body muscular strength, and upper body anaerobic power. At least 48 hours later, subjects returned to the laboratory for CPR testing. CPR quality was determined by compression rate (>100/minute), compression depth (>2 inches, or 50mm), and adequate (full) chest recoil between compressions, based on American Heart Association guidelines. A CPR Quality Score, designed to represent cardiac output, was calculated as the product of compression rate and depth. RESULTS Thirty-three of 42 subjects were able to achieve a CPR Quality Score greater than 5000, the minimum needed to meet AHA recommendations. Higher anaerobic power and bench press scores were predictive of both high CPR Quality Scores (R2=0.47) and compression depth (R2=0.47). Sex (female) was predictive of better chest compression recoil percentages (R2=0.15). CONCLUSION Most rescuers can maintain high quality CPR if given two minute breaks between cycles. Rescuers with high anaerobic fitness and muscular strength may be able to provide higher quality CPR.

Research paper thumbnail of Endothelial-dependent Cutaneous Vasodilatory Responses To Single Bout Of Remote Ischemic Preconditioning

Medicine & Science in Sports & Exercise

15-min seated rest, exercise, and a 180-min seated recovery. Excess post exercise oxygen consumpt... more 15-min seated rest, exercise, and a 180-min seated recovery. Excess post exercise oxygen consumption (EPOC) magnitude was calculated as area under the curve from netVO2 (VO2 VO2 at rest) during the first 90 minutes post-exercise. EE was calculated from VO2 during exercise and recovery. Fat oxidation (FatOx) and carbohydrate oxidation (CarbOx) rates were calculated from VO2 and VCO2 at rest, 1, 2 and 3 hrs post-exercise. Enjoyment was assessed post-exercise using the physical activity enjoyment scale (PACES). RESULTS: EPOC magnitude was similar among trials (LIIE = 4.87 ± 2.60 L*min, BFR = 6.59 ± 2.33 L*min, HIIE= 6.56 ± 2.01 L*min; p = 0.06). Total EE was different between BFR (321.6 ± 30.1 kcals), HIIE (254.5 ± 33.5 kcals), and LIIE (287.1 ± 25.5 kcals) (p<0.05). FatOx in BFR (1hr = 0.14 ± 0.01 g*min, 3hr = 0.11 ± 0.01 g*min) was greater than LIIE (1hr = 0.08 ± 0.02 g*min, 3hr = 0.9 ± 0.02 g*min), but not different from HIIE (1hr = 0.12 ± 0.02 g*min, 3hr = 0.09 ± 0.01 g*min) (main effect of trial; p<0.05). CarbOx during BFR (3hr = 0.16 ± 0.03 g*min) was less than LIIE (3hr = 0.19 ± 0.03 g*min) and HIIE (3hr = 0.23 ± 0.05 g*min) (main effect of trial). There were no differences in PACES scores. CONCLUSIONS: This study suggests that the addition of intermittent BFR to LIIE may result in greater EE but similar substrate utilization and enjoyment as HIIE, albeit at a lower work rate.

Research paper thumbnail of Seven Days Of Remote Ischemic Preconditioning Augmented Local-heating Induced Vasodilation In Human Skin

Medicine & Science in Sports & Exercise

Research paper thumbnail of Evaluating the Effectiveness of Graduated Stress Exposure in Virtual Spaceflight Hazard Training

Journal of Cognitive Engineering and Decision Making

Psychological and physiological stress experienced by astronauts can pose risks to mission succes... more Psychological and physiological stress experienced by astronauts can pose risks to mission success. In clinical settings, gradually increasing stressors help patients develop resilience. It is unclear whether graduated stress exposure can affect responses to acute stressors during spaceflight. This study evaluated psychophysiological responses to potentially catastrophic spaceflight operation, with and without graduated stress exposure, using a virtual reality environment. Twenty healthy participants were tasked with locating a fire on a virtual International Space Station (VR-ISS). After orientation, the treatment group ( n = 10) practiced searching for a fire while exposed to a low-level stressor (light smoke), while the control group ( n = 10) practiced without smoke. In the testing session, both groups responded to a fire while the VR-ISS unexpectedly filled with heavy smoke. Heart rate variability and blood pressure were measured continuously. Subjective workload was evaluated ...

Research paper thumbnail of Gerontological education: course and experiential differences across academic colleges

Gerontology & Geriatrics Education

A knowledgeable workforce is key to meeting the demands of an aging population that is expected t... more A knowledgeable workforce is key to meeting the demands of an aging population that is expected to nearly triple by 2030 and their attitudes influence propensity to seek aging-related careers. Postsecondary education offers an opportunity to increase aging-related knowledge and facilitates intergenerational experiential-learning opportunities; however, research is lacking regarding attitudes toward aging and experiences among an academically diverse sample. To address this gap, the aims of this study were to (1) examine differences in students&amp;amp;amp;amp;#39; attitudes toward older adults by academic college, (2) assess differences in aging-related coursework and course experiences by academic college, and (3) explore key factors associated with students&amp;amp;amp;amp;#39; attitudes toward older adults. Online survey methodology was used with a sample of 816 undergraduate students from a single university who represented all academic colleges offering undergraduate degrees. Significant differences among students&amp;amp;amp;amp;#39; attitudes toward older adults by academic college were noted: those enrolled in the College of Human Sciences reported better stereotype, separation, and affective attitudes. Furthermore, factors associated with students&amp;amp;amp;amp;#39; aging-related attitudes were sex, affiliation with academic college, perception of &amp;amp;amp;amp;quot;old,&amp;amp;amp;amp;quot; contact frequency, and desire to learn aging-related content. The authors suggest interdisciplinary and disciplinary-specific educational recommendations to improve students&amp;amp;amp;amp;#39; attitudes toward older adults.

Research paper thumbnail of Comparative effectiveness of guided weight loss and physical activity monitoring for weight loss and metabolic risks: A pilot study

Preventive medicine reports, 2017

Many consumer-based physical activity monitors (PAMs) are available but it is not clear how to us... more Many consumer-based physical activity monitors (PAMs) are available but it is not clear how to use them to most effectively promote weight loss. The purpose of this pilot study was to compare the effectiveness of a personal PAM, a guided weight loss program (GWL), and the combination of these approaches on weight loss and metabolic risk. Participants completed the study in two cohorts: Fall 2010 and Spring 2011. A sample of 72 obese individuals in the Ames, IA area were randomized to one of 3 conditions: 1) (GWL, N = 31), 2) PAM, N = 29, or 3) a combination group (PAM + GWL, N = 29). Weight and metabolic syndrome score (MetS), computed from waist circumference (WC), BMI, blood pressure (BP), and lipids were assessed at baseline and following an 8-week intervention. Weight was also assessed four months later. Two-way (Group × Time) ANOVAs examined intervention effects and maintenance. Effect sizes were used to compare magnitude of improvements among groups. During the intervention, a...

Research paper thumbnail of Graduated Stress Exposure of Spaceflight Hazards in a Virtual Environment

Research paper thumbnail of Associations of Health Club Membership with Physical Activity and Cardiovascular Health

PLOS ONE, 2017

Introduction This study evaluates whether a health club membership is associated with meeting the... more Introduction This study evaluates whether a health club membership is associated with meeting the US physical activity (PA) guidelines and/or favorable cardiovascular health. Methods Using cross-sectional data of health club members (n = 204) and non-members (n = 201) from April to August 2013, this is the first study to our knowledge to examine a health club membership in relation to objectively measured cardiovascular health indicators including resting blood pressure, resting heart rate, body mass index, waist circumference, and cardiorespiratory fitness based on a non-exercise test algorithm. To determine the total PA and sedentary time, this study used a comprehensive PA questionnaire about both aerobic and resistance activities at the health club, as well as lifestyle activities in other settings, which was developed based on the International Physical Activity Questionnaire (IPAQ). Results The odds ratios (95% confidence interval) of meeting either the aerobic, resistance, or both aerobic and resistance PA guidelines for members compared to non-members were 16.5 (9.8-27.6), 10.1 (6.2-16.3), and 13.8 (8.5-22.4), respectively. Significant associations of health club membership with more favorable cardiovascular health outcomes and sedentary behavior were observed for resting heart rate (B:-4.8 b/min, p<0.001), cardiorespiratory fitness (B: 2.1 ml/kg/min, p<0.001), and sedentary time (B:-1.4 hours, p<0.001). Participants with a health club membership of >1 year had more favorable health outcomes, with a smaller waist circumference (men, B:-4.0 cm, p = 0.04; women, B:-3.4 cm, p = 0.06), compared to non-members. Conclusions Health club membership is associated with significantly increased aerobic and resistance physical activity levels and more favorable cardiovascular health outcomes compared to non-members. However, longitudinal, randomized controlled trials would be clearly warranted as cross-sectional data prohibits causal inferences.

Research paper thumbnail of Sub-Classifying Type 2 Diabetes by Combining Nonlinear Dynamic Modeling and Multivariate Classification Methods

Research paper thumbnail of Preliminary Exercise Identity Scale (EIS) norms for three adult samples

Journal of Sport Behavior, 2001

Research paper thumbnail of Promoting the Congregate Meal Program to the Next Generation of Rural-Residing Older Adults

Journal of nutrition in gerontology and geriatrics

Despite a growing older adult population, Iowa Congregate Meal Program (CMP) participation has de... more Despite a growing older adult population, Iowa Congregate Meal Program (CMP) participation has declined. Motivators and barriers to congregate mealsite participation and wellness programming preferences of baby boomers and older adults were examined to provide insight to how to revise and better promote the CMP for the next generation of older adults. Four focus group sessions were conducted with 27 primarily White, rural-residing adults, ages 48-88 years. Participation motivators included educational programs, food, and socialization while barriers included negative perceptions and stereotypes associated with congregate mealsites. Desired wellness programs were viewed as interactive and relevant. Healthcare was the leading wellness need with financial management and physical activity cited as the most-wanted topics of wellness programs. These results provide insight on factors, aside from funding, that may be adversely impacting CMP participation and identifies areas for further in...

Research paper thumbnail of Association of exercise identity with measures of exercise commitment and physiological indicators of fitness in a law enforcement cohort

Journal of Sport Behavior, Aug 31, 1998

Research paper thumbnail of The Potential of Three Computer-Based Communication Activities for Supporting Older Adult Independent Living

Information, 2016

Technology has become an increasingly integral part of life. For example, technology allows indiv... more Technology has become an increasingly integral part of life. For example, technology allows individuals to stay in touch with loved ones, obtain medical services through telehealthcare, and enjoy an overall higher quality of life. Particularly for older adults, using technology increases the likelihood that they will maintain their independence and autonomy. Long-distance caregiving has recently become a feasible option where caregivers for older adults can access reports and information about their loved one's patterns that day (e.g., food and medication intake). Technology may be able to offset age-related challenges (e.g., caregiving, accessing healthcare, decreased social networks) by applying technology to the needs of older adults. Solutions for meeting such challenges, however, have been less targeted. In addition, the healthcare system is evolving to focus on providing options and services in the home. This has direct implications for older adults, as the majority of healthcare services are utilized by older adults. Research is still at the beginning stages of developing successful technology tools that are compatible with older adult users. Therefore, the design, implementation, and outcome of such computer-based communication activities will be discussed in this paper in order to guide future endeavors in technology marketed for older adults.

Research paper thumbnail of VirtuTrace: Training for Making Decisions under Stress in virtual environments