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Papers by Constanza Valenzuela

Research paper thumbnail of La educación secundaria en el proceso de (re)construcción del rol femenino en dictadura. Chile, 1974

Research paper thumbnail of Additional file 1 of Interference of functional dual-tasks on gait in untrained people with Parkinson's disease and healthy controls: a cross-sectional study

Research paper thumbnail of Relevance of Sociodemographics and Clinical Tests in Single- and Dual-Task Conditions as Gait Speed Predictors of Parkinson’s Disease

Journal of Clinical Medicine, 2022

This cross-sectional study aimed to identify the patient characteristics and clinical test result... more This cross-sectional study aimed to identify the patient characteristics and clinical test results that predict the functional gait speed of people with Parkinson’s disease (PD). The impact of dual tasks on gait in Parkinson’s disease (PD) reveals a lack of automaticity and increased cognitive demands. We explored which characteristics explained walking speed with and without dual-task interference and if they reflected the cognitive demands of the task. The preferred gait speed, stride length, and cadence were measured in individuals with PD through five conditions: single-task (ST) and visual, verbal, auditory, and motor dual-tasks (DTs). Sociodemographic and disease characteristics and the results from clinical tests such as the Dynamic Parkinson’s Disease Gait Scale (DYPAGS), Frontal Assessment Battery (FAB), and Parkinson’s Disease Questionnaire-39 (PDQ-39), among others, were also recorded. Two models of multiple regression analysis were used to explore the predictive value of...

Research paper thumbnail of Grip Strength, Neurocognition, and Social Functioning in People WithType-2 Diabetes Mellitus, Major Depressive Disorder, Bipolar Disorder, and Schizophrenia

Frontiers in Psychology, 2020

Background: Frailty is a common syndrome among older adults and patients with several comorbiditi... more Background: Frailty is a common syndrome among older adults and patients with several comorbidities. Grip strength (GS) is a representative parameter of frailty because it is a valid indicator of current and long-term physical conditions in the general population and patients with severe mental illnesses (SMIs). Physical and cognitive capacities of people with SMIs are usually impaired; however, their relationship with frailty or social functioning have not been studied to date. The current study aimed to determine if GS is a valid predictor of changes in cognitive performance and social functioning in patients with type-2 diabetes mellitus and SMIs. Methods: Assessments of social functioning, cognitive performance, and GS (measured with an electronic dynamometer) were conducted in 30 outpatients with type 2 diabetes mellitus, 35 with major depressive disorder, 42 with bipolar disorder, 30 with schizophrenia, and 28 healthy controls, twice during 1-year, follow-up period. Descriptiv...

Research paper thumbnail of Motor and Cognitive Performance in Patients with Liver Cirrhosis with Minimal Hepatic Encephalopathy

Journal of Clinical Medicine, 2020

Minimal hepatic encephalopathy (MHE) is associated with mild cognitive impairment and frailty. Th... more Minimal hepatic encephalopathy (MHE) is associated with mild cognitive impairment and frailty. This study aims to identify cognitive and motor differences in cirrhotic patients with and without MHE, and the correlations between motor signs and cognitive performance. Gait, balance, hand strength and motor speed performance were evaluated in 66 cirrhotic patients (38 without and 28 with MHE, according to the Psychometric Hepatic Encephalopathy Score (PHES). Cognitive performance was measured with the Mini-Mental State Examination, Verbal Fluency Test, Aprendizaje Verbal España-Complutense Test (TAVEC), Wechsler Adult Intelligence Scale III, Hamilton Depression and Anxiety Rating Scale and Functioning Assessment Short Test (FAST). MHE patients performed worse than patients without MHE in cognitive and autonomous functioning, learning and long-term memory, and verbal fluency. The same pattern was found in gait, center of pressure movement, variability of hand strength performance and ha...

Research paper thumbnail of Effects of Dual-Task Group Training on Gait, Cognitive Executive Function, and Quality of Life in People With Parkinson Disease: Results of Randomized Controlled DUALGAIT Trial

Archives of Physical Medicine and Rehabilitation, 2020

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Research paper thumbnail of Interference of functional dual-tasks on gait in untrained people with Parkinson’s disease and healthy controls: cross-sectional study

Background: In Parkinson’s disease (PD) population, performing secondary tasks while walking furt... more Background: In Parkinson’s disease (PD) population, performing secondary tasks while walking further deteriorates gait and restrict mobility in functional contexts of daily life. This study (1) analyzed the interference of functional cognitive and motor secondary task on untrained people with PD and (2) compared their walking with healthy subjects. Methods : Forty people with PD (aged 66.72 [7.5] years, Hoehn and Yahr stage I-II-III on-medication) composed the PD group (PDG) and 43 participants (aged 66.60 [8.75] years) formed the group of healthy counterparts (HG). Gait was evaluated through spatiotemporal, kinematic and kinetic outcomes in five conditions: single task (ST) and visual, verbal, auditory and motor dual-task (DT). Results : The performance of both groups was higher in the ST than verbal, auditory and motor DT conditions (p < .05). A similar gait pattern was observed between ST and visual DT during velocity, cadence and vertical forces in PDG and HG. In addition, PD...

Research paper thumbnail of “Ser femenina, ser delicada, ser madre”. Representaciones sociales de género del profesorado: un estudio cualitativo

Páginas de Educación, 2019

Las Representaciones Sociales de Género, están relacionadas con los estereotipos y roles que inte... more Las Representaciones Sociales de Género, están relacionadas con los estereotipos y roles que interfieren en el desarrollo de las personas. El objetivo de esta investigación es comprender las representaciones sociales de género en profesores y profesoras de enseñanza primaria, en Santiago de Chile. La investigación es de tipo cualitativa desde un paradigma post positivista, se realizaron entrevistas en profundidad como método de recolección de datos a profesores, siguiendo la técnica de bola de nieve, las cuales fueron sometidas a análisis de contenidos. Dentro de los principales resultados destaca la reproducción de representaciones sociales diferenciado según sexo biológico y por otro lado el esfuerzo de profesores por promover igualdad de género al interior de las aulas.

Research paper thumbnail of La educación secundaria en el proceso de (re)construcción del rol femenino en dictadura. Chile, 1974

Research paper thumbnail of Additional file 1 of Interference of functional dual-tasks on gait in untrained people with Parkinson's disease and healthy controls: a cross-sectional study

Research paper thumbnail of Relevance of Sociodemographics and Clinical Tests in Single- and Dual-Task Conditions as Gait Speed Predictors of Parkinson’s Disease

Journal of Clinical Medicine, 2022

This cross-sectional study aimed to identify the patient characteristics and clinical test result... more This cross-sectional study aimed to identify the patient characteristics and clinical test results that predict the functional gait speed of people with Parkinson’s disease (PD). The impact of dual tasks on gait in Parkinson’s disease (PD) reveals a lack of automaticity and increased cognitive demands. We explored which characteristics explained walking speed with and without dual-task interference and if they reflected the cognitive demands of the task. The preferred gait speed, stride length, and cadence were measured in individuals with PD through five conditions: single-task (ST) and visual, verbal, auditory, and motor dual-tasks (DTs). Sociodemographic and disease characteristics and the results from clinical tests such as the Dynamic Parkinson’s Disease Gait Scale (DYPAGS), Frontal Assessment Battery (FAB), and Parkinson’s Disease Questionnaire-39 (PDQ-39), among others, were also recorded. Two models of multiple regression analysis were used to explore the predictive value of...

Research paper thumbnail of Grip Strength, Neurocognition, and Social Functioning in People WithType-2 Diabetes Mellitus, Major Depressive Disorder, Bipolar Disorder, and Schizophrenia

Frontiers in Psychology, 2020

Background: Frailty is a common syndrome among older adults and patients with several comorbiditi... more Background: Frailty is a common syndrome among older adults and patients with several comorbidities. Grip strength (GS) is a representative parameter of frailty because it is a valid indicator of current and long-term physical conditions in the general population and patients with severe mental illnesses (SMIs). Physical and cognitive capacities of people with SMIs are usually impaired; however, their relationship with frailty or social functioning have not been studied to date. The current study aimed to determine if GS is a valid predictor of changes in cognitive performance and social functioning in patients with type-2 diabetes mellitus and SMIs. Methods: Assessments of social functioning, cognitive performance, and GS (measured with an electronic dynamometer) were conducted in 30 outpatients with type 2 diabetes mellitus, 35 with major depressive disorder, 42 with bipolar disorder, 30 with schizophrenia, and 28 healthy controls, twice during 1-year, follow-up period. Descriptiv...

Research paper thumbnail of Motor and Cognitive Performance in Patients with Liver Cirrhosis with Minimal Hepatic Encephalopathy

Journal of Clinical Medicine, 2020

Minimal hepatic encephalopathy (MHE) is associated with mild cognitive impairment and frailty. Th... more Minimal hepatic encephalopathy (MHE) is associated with mild cognitive impairment and frailty. This study aims to identify cognitive and motor differences in cirrhotic patients with and without MHE, and the correlations between motor signs and cognitive performance. Gait, balance, hand strength and motor speed performance were evaluated in 66 cirrhotic patients (38 without and 28 with MHE, according to the Psychometric Hepatic Encephalopathy Score (PHES). Cognitive performance was measured with the Mini-Mental State Examination, Verbal Fluency Test, Aprendizaje Verbal España-Complutense Test (TAVEC), Wechsler Adult Intelligence Scale III, Hamilton Depression and Anxiety Rating Scale and Functioning Assessment Short Test (FAST). MHE patients performed worse than patients without MHE in cognitive and autonomous functioning, learning and long-term memory, and verbal fluency. The same pattern was found in gait, center of pressure movement, variability of hand strength performance and ha...

Research paper thumbnail of Effects of Dual-Task Group Training on Gait, Cognitive Executive Function, and Quality of Life in People With Parkinson Disease: Results of Randomized Controlled DUALGAIT Trial

Archives of Physical Medicine and Rehabilitation, 2020

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Research paper thumbnail of Interference of functional dual-tasks on gait in untrained people with Parkinson’s disease and healthy controls: cross-sectional study

Background: In Parkinson’s disease (PD) population, performing secondary tasks while walking furt... more Background: In Parkinson’s disease (PD) population, performing secondary tasks while walking further deteriorates gait and restrict mobility in functional contexts of daily life. This study (1) analyzed the interference of functional cognitive and motor secondary task on untrained people with PD and (2) compared their walking with healthy subjects. Methods : Forty people with PD (aged 66.72 [7.5] years, Hoehn and Yahr stage I-II-III on-medication) composed the PD group (PDG) and 43 participants (aged 66.60 [8.75] years) formed the group of healthy counterparts (HG). Gait was evaluated through spatiotemporal, kinematic and kinetic outcomes in five conditions: single task (ST) and visual, verbal, auditory and motor dual-task (DT). Results : The performance of both groups was higher in the ST than verbal, auditory and motor DT conditions (p < .05). A similar gait pattern was observed between ST and visual DT during velocity, cadence and vertical forces in PDG and HG. In addition, PD...

Research paper thumbnail of “Ser femenina, ser delicada, ser madre”. Representaciones sociales de género del profesorado: un estudio cualitativo

Páginas de Educación, 2019

Las Representaciones Sociales de Género, están relacionadas con los estereotipos y roles que inte... more Las Representaciones Sociales de Género, están relacionadas con los estereotipos y roles que interfieren en el desarrollo de las personas. El objetivo de esta investigación es comprender las representaciones sociales de género en profesores y profesoras de enseñanza primaria, en Santiago de Chile. La investigación es de tipo cualitativa desde un paradigma post positivista, se realizaron entrevistas en profundidad como método de recolección de datos a profesores, siguiendo la técnica de bola de nieve, las cuales fueron sometidas a análisis de contenidos. Dentro de los principales resultados destaca la reproducción de representaciones sociales diferenciado según sexo biológico y por otro lado el esfuerzo de profesores por promover igualdad de género al interior de las aulas.