Mandy Plumb - Academia.edu (original) (raw)
Papers by Mandy Plumb
Journal of Motor Learning and Development
Background: The purpose of this study was to examine the effect of the follow-through on thrown b... more Background: The purpose of this study was to examine the effect of the follow-through on thrown ball velocity, potentially justifying inclusion of the follow-through in Roberton’s five critical components. Method: Seventy-eight University students participated in the overarm, dominant hand, throwing task, which involved throwing a standard tennis ball with maximum force three times. Each throw was filmed by two cameras placed behind and to the open side of the thrower to assess the throwing technique. The velocity of the throws was recorded with a radar gun. Results: Results indicated that, after accounting for the effects of gender, age, and throwing experience, there was a significant effect of follow-through level on throw velocity. Analysis of covariance also revealed a significant gender effect, with males throwing significantly faster than females. Results indicated the follow-through had the second largest impact on thrown ball velocity of all six components. Discussion: Thes...
International Journal of Sports Medicine
This systematic review was conducted to identify the incidence, nature and mechanisms of head, ne... more This systematic review was conducted to identify the incidence, nature and mechanisms of head, neck and facial (HNF) injuries in cricket and the reported use of helmets. Five databases were searched up to 30th November 2020. From peer-reviewed cricket injury studies published in English, studies reporting on HNF cricket injuries as per the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines were selected. Twenty-nine studies were included. HNF injuries had a cumulative total of 794/5,886 injuries equating to 13% of all injuries. Non- specified HNF injuries (n=210, 26%) were the most prevalent type of injury followed by non-specified head injuries (n=130, 16%), other non-specified fractures (n=119, 15%) and concussions (n=60, 8%).The impact of the ball was reported as the most common mechanism for sustaining HNF injuries in cricket. The use of helmet was reported in only three studies (10%). From studies reporting on HNF cricket injuries, facial fra...
Journal of Motor Learning and Development
Background: Roberton’s movement components are used to assess fundamental motor skills as segment... more Background: Roberton’s movement components are used to assess fundamental motor skills as segmental developmental sequences. In 1991, Haywood, Williams and VanSant determined that original developmental sequences proposed for the backswing levels of the overarm throw did not encompass all ages. Their study of older throwers identified two new qualitatively different levels, with half the participants categorized at two new levels. This investigation extended the initial validation across a wider age range. Method: Two hundred and twenty-eight primary, high school, university students, and adults were instructed to make five throws for maximum force using their dominant hand. Throws were recorded with side and rear cameras synchronized for analysis. Prelongitudinal screening was used to analyze the Haywood et al. revisions of the Langendorfer developmental sequence. Results: Five of the six levels of Haywood’s sequence were suitable for assessing throwers 8 years of age through to ad...
Journal of Science and Medicine in Sport
Research Quarterly for Exercise and Sport
ABSTRACT Background: Poor motor skills are an increasing issue for adolescents in our local commu... more ABSTRACT Background: Poor motor skills are an increasing issue for adolescents in our local communities. In regional Victoria, almost 20% of children starting school in 2018 were considered at risk or developmentally vulnerable in the domain of physical health and wellbeing. Purpose: The aim of the current study was to examine factors (how adolescents perceive their fine and gross motor skills, activities of daily living, comparison to peers) of motor competence that may be important to adolescents in regional Victoria, Australia, using the Adolescent Motor Competence Questionnaire (AMCQ). Methods: A sample of 183 Australian adolescents ([138 females (Mage = 15.59 years, SD = 1.56); 45 males, (Mage = 15.82 years, SD = 1.95); 12–18 years old] completed the AMCQ. Results: The mean AMCQ score was 87.86 (SD = 7.55), with no significant difference between males (M = 89.67 SD = 7.29) and females [M = 87.28 SD = 7.56; t (181 = 1.86 p =.065)]. A Principal Component Analysis (PCA), extracted five factors (Eiqenvalue of 1.389) explaining 43.46% of variance, representing, Ball Skills and Kinesthesis; Activities of Daily Living; Fine Motor and Gross Motor; Proprioception and Exteroception; Public Performance. Conclusion: The results highlight key factors important in describing an adolescent’s motor competence within regional Victoria. With physical health a priority in local communities, understanding these factors is an important first, that which may inform development of physical activity interventions for adolescents.
International Journal of Osteopathic Medicine
Abstract Background With recreational running's continued popularity and incidence of lower e... more Abstract Background With recreational running's continued popularity and incidence of lower extremity injuries increasing, it is important from an osteopathic practitioner perspective, to be aware of treatment/interventions that may enhance recovery or prevent injury. With an osteopathic lens we postulate that improving function leads to symptomatic benefit in not only structure but throughout the kinetic chain. Objectives The present study aimed to assess the effects of a 4-week barefoot (BF) training intervention on; visual analog scale (VAS) pain scores, postural sway, plantar pressure, stride and foot impact. Methods In this parallel design study, eight recreational runners were recruited and blindly randomised to a control (CO) (1 M & 2F; aged 28.0 ± 12.1 years; weight 63.3 ± 11.6 kgs) or intervention (I) (4 M & 1F; aged 33.4 ± 9.3 years; weight 69.8 ± 7.6 kgs). Results No significant differences in plantar pressure or stride pre- or post-intervention for CO or I group. However, there were significant reductions in the intervention group for VAS walk (pre:mdn = 3 (IQR = 3.0–5.5; post:mdn = 1.5 (IQR = 1.0–4.0) and run (pre:mdn = 6 (IQR = 4.5–7.5; post:mdn = 2.0 (IQR = 1.5–5.0). Also, for medial-lateral eyes open sway condition for both left (pre:mdn = 2.94 (IQR = 2.54–5.42; post:mdn = 2.26 (IQR = 2.05–3.18) and right leg (pre:mdn = 3.55 (IQR = 2.79–4.32; post:mdn = 2.71 (IQR = 2.26–3.34). Finally, a significant decrease in rear-foot strike impulse (pre:mdn = 4.66 (IQR = 3.01–5.14; post:mdn = 2.66 (IQR = 1.81–3.54). Conclusion The present study assesses short-term balance and impact changes through a BF intervention. It is entirely probable plantar cutaneous mechanoreceptor activity has increased leading to peripheral and centrally mediated improvement in balance through reduction in sway. The reductions in impact outline the neuro-biomechanical relationship and importance of plantar sensitivity. For injuries where either factor is at play, BF activity may have clinical benefits.
Journal of Physical Education, Recreation & Dance
In order for video replay to be an effective assessment and teaching tool, a number of steps need... more In order for video replay to be an effective assessment and teaching tool, a number of steps need to be followed. This article provides some useful tips for physical educators to ensure they are implementing this video technology effectively when teaching the overarm throw.
The British journal of occupational therapy, 2016
There is substantial evidence to support the relationship between transcription skills (handwriti... more There is substantial evidence to support the relationship between transcription skills (handwriting and spelling) and compositional quality. For children with developmental coordination disorder, handwriting can be particularly challenging. While recent research has aimed to investigate their handwriting difficulties in more detail, the impact of transcription on their compositional quality has not previously been examined. The aim of this exploratory study was to examine compositional quality in children with developmental coordination disorder and to ascertain whether their transcription skills influence writing quality. Twenty-eight children with developmental coordination disorder participated in the study, with 28 typically developing age and gender matched controls. The children completed the 'free-writing' task from the detailed assessment of speed of handwriting tool, which was evaluated for compositional quality using the Wechsler objective language dimensions. The ...
Human movement science, Jan 18, 2016
Children with Developmental Coordination Disorder demonstrate a lack of automaticity in handwriti... more Children with Developmental Coordination Disorder demonstrate a lack of automaticity in handwriting as measured by pauses during writing. Deficits in visual perception have been proposed in the literature as underlying mechanisms of handwriting difficulties in children with DCD. The aim of this study was to examine whether correlations exist between measures of visual perception and visual motor integration with measures of the handwriting product and process in children with DCD. The performance of twenty-eight 8-14year-old children who met the DSM-5 criteria for DCD was compared with 28 typically developing (TD) age and gender-matched controls. The children completed the Developmental Test of Visual Motor Integration (VMI) and the Test of Visual Perceptual Skills (TVPS). Group comparisons were made, correlations were conducted between the visual perceptual measures and handwriting measures and the sensitivity and specificity examined. The DCD group performed below the TD group on ...
Osteoarthritis and Cartilage
ABSTRACT
Research in Developmental Disabilities, 2014
Lipids in Health and Disease, 2004
Background Osteoarthritis (OA) is strongly linked with obesity and patients with osteoporosis (OP... more Background Osteoarthritis (OA) is strongly linked with obesity and patients with osteoporosis (OP) have a low body mass index. Anecdotal evidence, clinical and laboratory, suggests that OA bone contains more fat. However, conversion of osteoblasts to adipocytes is reported in OP and this would suggest that the more porous OP cancellous bone would have a high fat content. Objectives To test the hypothesis that OA bone contains more fat than OP bone. Methods Cores of cancellous bone were obtained from femoral heads of patients undergoing surgery for either OA or OP. Lipids were extracted using chloroform-methanol, weighed and expressed as a fraction of core mass and volume. A fatty acid analysis was performed using gas chromatography. Results OA bone contained twice as much fat per unit volume of tissue as OP. Levels of n -6 fatty acids were elevated in OA, especially arachidonic acid (C20:4 n -6) which was almost double that found in OP. Conclusions These data support the hypothesis ...
Osteoarthritis and Cartilage, 2009
Osteoarthritis and Cartilage, 2005
Biochimica et Biophysica Acta (BBA) - General Subjects, 2006
Perception, 2006
We compared children with (n= 19, age range 6-16 years) and without (n= 112) autistic spectrum di... more We compared children with (n= 19, age range 6-16 years) and without (n= 112) autistic spectrum disorder in a series of visual psychophysical and movement tasks. The tasks provided objective performance measures that tested previous claims based on subjective observations regarding autism. We found that children with autism:(i) were indistinguishable from controls in their form and motion coherence thresholds;(ii) were indistinguishable in their ability to detect subtle changes in realistic dynamic face stimuli;(iii) were ...
Journal of Motor Behavior, Oct 8, 2009
The authors studied 2 tasks that placed differing demands on detecting relevant visual informatio... more The authors studied 2 tasks that placed differing demands on detecting relevant visual information and generating appropriate gaze shifts in adults and children with and without autism. In Experiment 1, participants fixated a cross and needed to make large gaze shifts, but researchers provided explicit instructions about shifting. Children with autism were indistinguishable from comparison groups in this top-down task. In Experiment 2 (bottom-up), a fixation cross remained or was removed prior to the presentation of a peripheral ...
Journal of Motor Behavior, 2009
Action selection is subject to many biases. Immediate movement history is one such bias seen in y... more Action selection is subject to many biases. Immediate movement history is one such bias seen in young infants. Is this bias strong enough to affect adult behavior? Adult participants reached and grasped a cylinder positioned to require either pronation or supination of the hand. Successive cylinder positions changed either randomly or systematically between trials. Random positioning led to optimized economy of movement. In contrast, systematic changes in position biased action selection toward previously selected actions at the ...
Journal of Motor Learning and Development
Background: The purpose of this study was to examine the effect of the follow-through on thrown b... more Background: The purpose of this study was to examine the effect of the follow-through on thrown ball velocity, potentially justifying inclusion of the follow-through in Roberton’s five critical components. Method: Seventy-eight University students participated in the overarm, dominant hand, throwing task, which involved throwing a standard tennis ball with maximum force three times. Each throw was filmed by two cameras placed behind and to the open side of the thrower to assess the throwing technique. The velocity of the throws was recorded with a radar gun. Results: Results indicated that, after accounting for the effects of gender, age, and throwing experience, there was a significant effect of follow-through level on throw velocity. Analysis of covariance also revealed a significant gender effect, with males throwing significantly faster than females. Results indicated the follow-through had the second largest impact on thrown ball velocity of all six components. Discussion: Thes...
International Journal of Sports Medicine
This systematic review was conducted to identify the incidence, nature and mechanisms of head, ne... more This systematic review was conducted to identify the incidence, nature and mechanisms of head, neck and facial (HNF) injuries in cricket and the reported use of helmets. Five databases were searched up to 30th November 2020. From peer-reviewed cricket injury studies published in English, studies reporting on HNF cricket injuries as per the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines were selected. Twenty-nine studies were included. HNF injuries had a cumulative total of 794/5,886 injuries equating to 13% of all injuries. Non- specified HNF injuries (n=210, 26%) were the most prevalent type of injury followed by non-specified head injuries (n=130, 16%), other non-specified fractures (n=119, 15%) and concussions (n=60, 8%).The impact of the ball was reported as the most common mechanism for sustaining HNF injuries in cricket. The use of helmet was reported in only three studies (10%). From studies reporting on HNF cricket injuries, facial fra...
Journal of Motor Learning and Development
Background: Roberton’s movement components are used to assess fundamental motor skills as segment... more Background: Roberton’s movement components are used to assess fundamental motor skills as segmental developmental sequences. In 1991, Haywood, Williams and VanSant determined that original developmental sequences proposed for the backswing levels of the overarm throw did not encompass all ages. Their study of older throwers identified two new qualitatively different levels, with half the participants categorized at two new levels. This investigation extended the initial validation across a wider age range. Method: Two hundred and twenty-eight primary, high school, university students, and adults were instructed to make five throws for maximum force using their dominant hand. Throws were recorded with side and rear cameras synchronized for analysis. Prelongitudinal screening was used to analyze the Haywood et al. revisions of the Langendorfer developmental sequence. Results: Five of the six levels of Haywood’s sequence were suitable for assessing throwers 8 years of age through to ad...
Journal of Science and Medicine in Sport
Research Quarterly for Exercise and Sport
ABSTRACT Background: Poor motor skills are an increasing issue for adolescents in our local commu... more ABSTRACT Background: Poor motor skills are an increasing issue for adolescents in our local communities. In regional Victoria, almost 20% of children starting school in 2018 were considered at risk or developmentally vulnerable in the domain of physical health and wellbeing. Purpose: The aim of the current study was to examine factors (how adolescents perceive their fine and gross motor skills, activities of daily living, comparison to peers) of motor competence that may be important to adolescents in regional Victoria, Australia, using the Adolescent Motor Competence Questionnaire (AMCQ). Methods: A sample of 183 Australian adolescents ([138 females (Mage = 15.59 years, SD = 1.56); 45 males, (Mage = 15.82 years, SD = 1.95); 12–18 years old] completed the AMCQ. Results: The mean AMCQ score was 87.86 (SD = 7.55), with no significant difference between males (M = 89.67 SD = 7.29) and females [M = 87.28 SD = 7.56; t (181 = 1.86 p =.065)]. A Principal Component Analysis (PCA), extracted five factors (Eiqenvalue of 1.389) explaining 43.46% of variance, representing, Ball Skills and Kinesthesis; Activities of Daily Living; Fine Motor and Gross Motor; Proprioception and Exteroception; Public Performance. Conclusion: The results highlight key factors important in describing an adolescent’s motor competence within regional Victoria. With physical health a priority in local communities, understanding these factors is an important first, that which may inform development of physical activity interventions for adolescents.
International Journal of Osteopathic Medicine
Abstract Background With recreational running's continued popularity and incidence of lower e... more Abstract Background With recreational running's continued popularity and incidence of lower extremity injuries increasing, it is important from an osteopathic practitioner perspective, to be aware of treatment/interventions that may enhance recovery or prevent injury. With an osteopathic lens we postulate that improving function leads to symptomatic benefit in not only structure but throughout the kinetic chain. Objectives The present study aimed to assess the effects of a 4-week barefoot (BF) training intervention on; visual analog scale (VAS) pain scores, postural sway, plantar pressure, stride and foot impact. Methods In this parallel design study, eight recreational runners were recruited and blindly randomised to a control (CO) (1 M & 2F; aged 28.0 ± 12.1 years; weight 63.3 ± 11.6 kgs) or intervention (I) (4 M & 1F; aged 33.4 ± 9.3 years; weight 69.8 ± 7.6 kgs). Results No significant differences in plantar pressure or stride pre- or post-intervention for CO or I group. However, there were significant reductions in the intervention group for VAS walk (pre:mdn = 3 (IQR = 3.0–5.5; post:mdn = 1.5 (IQR = 1.0–4.0) and run (pre:mdn = 6 (IQR = 4.5–7.5; post:mdn = 2.0 (IQR = 1.5–5.0). Also, for medial-lateral eyes open sway condition for both left (pre:mdn = 2.94 (IQR = 2.54–5.42; post:mdn = 2.26 (IQR = 2.05–3.18) and right leg (pre:mdn = 3.55 (IQR = 2.79–4.32; post:mdn = 2.71 (IQR = 2.26–3.34). Finally, a significant decrease in rear-foot strike impulse (pre:mdn = 4.66 (IQR = 3.01–5.14; post:mdn = 2.66 (IQR = 1.81–3.54). Conclusion The present study assesses short-term balance and impact changes through a BF intervention. It is entirely probable plantar cutaneous mechanoreceptor activity has increased leading to peripheral and centrally mediated improvement in balance through reduction in sway. The reductions in impact outline the neuro-biomechanical relationship and importance of plantar sensitivity. For injuries where either factor is at play, BF activity may have clinical benefits.
Journal of Physical Education, Recreation & Dance
In order for video replay to be an effective assessment and teaching tool, a number of steps need... more In order for video replay to be an effective assessment and teaching tool, a number of steps need to be followed. This article provides some useful tips for physical educators to ensure they are implementing this video technology effectively when teaching the overarm throw.
The British journal of occupational therapy, 2016
There is substantial evidence to support the relationship between transcription skills (handwriti... more There is substantial evidence to support the relationship between transcription skills (handwriting and spelling) and compositional quality. For children with developmental coordination disorder, handwriting can be particularly challenging. While recent research has aimed to investigate their handwriting difficulties in more detail, the impact of transcription on their compositional quality has not previously been examined. The aim of this exploratory study was to examine compositional quality in children with developmental coordination disorder and to ascertain whether their transcription skills influence writing quality. Twenty-eight children with developmental coordination disorder participated in the study, with 28 typically developing age and gender matched controls. The children completed the 'free-writing' task from the detailed assessment of speed of handwriting tool, which was evaluated for compositional quality using the Wechsler objective language dimensions. The ...
Human movement science, Jan 18, 2016
Children with Developmental Coordination Disorder demonstrate a lack of automaticity in handwriti... more Children with Developmental Coordination Disorder demonstrate a lack of automaticity in handwriting as measured by pauses during writing. Deficits in visual perception have been proposed in the literature as underlying mechanisms of handwriting difficulties in children with DCD. The aim of this study was to examine whether correlations exist between measures of visual perception and visual motor integration with measures of the handwriting product and process in children with DCD. The performance of twenty-eight 8-14year-old children who met the DSM-5 criteria for DCD was compared with 28 typically developing (TD) age and gender-matched controls. The children completed the Developmental Test of Visual Motor Integration (VMI) and the Test of Visual Perceptual Skills (TVPS). Group comparisons were made, correlations were conducted between the visual perceptual measures and handwriting measures and the sensitivity and specificity examined. The DCD group performed below the TD group on ...
Osteoarthritis and Cartilage
ABSTRACT
Research in Developmental Disabilities, 2014
Lipids in Health and Disease, 2004
Background Osteoarthritis (OA) is strongly linked with obesity and patients with osteoporosis (OP... more Background Osteoarthritis (OA) is strongly linked with obesity and patients with osteoporosis (OP) have a low body mass index. Anecdotal evidence, clinical and laboratory, suggests that OA bone contains more fat. However, conversion of osteoblasts to adipocytes is reported in OP and this would suggest that the more porous OP cancellous bone would have a high fat content. Objectives To test the hypothesis that OA bone contains more fat than OP bone. Methods Cores of cancellous bone were obtained from femoral heads of patients undergoing surgery for either OA or OP. Lipids were extracted using chloroform-methanol, weighed and expressed as a fraction of core mass and volume. A fatty acid analysis was performed using gas chromatography. Results OA bone contained twice as much fat per unit volume of tissue as OP. Levels of n -6 fatty acids were elevated in OA, especially arachidonic acid (C20:4 n -6) which was almost double that found in OP. Conclusions These data support the hypothesis ...
Osteoarthritis and Cartilage, 2009
Osteoarthritis and Cartilage, 2005
Biochimica et Biophysica Acta (BBA) - General Subjects, 2006
Perception, 2006
We compared children with (n= 19, age range 6-16 years) and without (n= 112) autistic spectrum di... more We compared children with (n= 19, age range 6-16 years) and without (n= 112) autistic spectrum disorder in a series of visual psychophysical and movement tasks. The tasks provided objective performance measures that tested previous claims based on subjective observations regarding autism. We found that children with autism:(i) were indistinguishable from controls in their form and motion coherence thresholds;(ii) were indistinguishable in their ability to detect subtle changes in realistic dynamic face stimuli;(iii) were ...
Journal of Motor Behavior, Oct 8, 2009
The authors studied 2 tasks that placed differing demands on detecting relevant visual informatio... more The authors studied 2 tasks that placed differing demands on detecting relevant visual information and generating appropriate gaze shifts in adults and children with and without autism. In Experiment 1, participants fixated a cross and needed to make large gaze shifts, but researchers provided explicit instructions about shifting. Children with autism were indistinguishable from comparison groups in this top-down task. In Experiment 2 (bottom-up), a fixation cross remained or was removed prior to the presentation of a peripheral ...
Journal of Motor Behavior, 2009
Action selection is subject to many biases. Immediate movement history is one such bias seen in y... more Action selection is subject to many biases. Immediate movement history is one such bias seen in young infants. Is this bias strong enough to affect adult behavior? Adult participants reached and grasped a cylinder positioned to require either pronation or supination of the hand. Successive cylinder positions changed either randomly or systematically between trials. Random positioning led to optimized economy of movement. In contrast, systematic changes in position biased action selection toward previously selected actions at the ...