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Full-Text Articles in Medicine and Health Sciences
Barriers, Motivations, And Preferences For Physical Activity Among Female African American Older Adults, Neha P. Gothe, Bradley J. Kendall
Barriers, Motivations, And Preferences For Physical Activity Among Female African American Older Adults, Neha P. Gothe, Bradley J. Kendall
Kinesiology, Health and Sport Studies
According to the Centers for Disease Control and Prevention, less than 11% of adults more than the age of 65 meet the 2008 Physical Activity Guidelines for Americans. Among minority populations, only 5% of non-Hispanic Black older adults met the guidelines. Given our limited understanding of psychosocial and environmental factors that affect physical activity participation in these groups, the purpose of our focus groups was to investigate barriers, motivators, and preferences of physical activity for community-dwelling African American older adults. Three focus groups were conducted with female African American older adults (N = 20). Questions posed to each focus group …
Psychometric Properties Of The Abbreviated Perceived Motivational Climate In Exercise Questionnaire, E. Whitney G. Moore, Theresa C. Brown, Mary D. Fry
Psychometric Properties Of The Abbreviated Perceived Motivational Climate In Exercise Questionnaire, E. Whitney G. Moore, Theresa C. Brown, Mary D. Fry
Kinesiology, Health and Sport Studies
The purpose of this study was to develop an abbreviated version of the Perceived Motivational Climate in Exercise Questionnaire (PMCEQ-A) to provide a more practical instrument for use in applied exercise settings. In the calibration step, 2 shortened versions’ measurement and latent model values were compared to each other and the original PMCEQ using a 3-group CFA invariance testing approach with previously collected exercise setting data (N = 5,427). Based on the model fit and reliability values, the 12-item version performed better than the 17-item version. The resultant 12-item PMCEQ-A’s CFA model estimates were then compared to the PMCEQ’s model …
Plasticity Of Brain Networks In A Randomized Intervention Trial Of Exercise Training In Older Adults, Michelle W. Voss, Ruchika S. Prakash, Kirk I. Erickson, Chandramallika Basak, Laura Chaddock, Jennifer S. Kim, Heloisa Alves, Susie Heo, Amanda N. Szabo, Siobhan M. White, Thomas R. Wójcicki, Emily L. Mailey, Neha Gothe, Erin A. Olson, Edward Mcauley, Arthur F. Kramer
Plasticity Of Brain Networks In A Randomized Intervention Trial Of Exercise Training In Older Adults, Michelle W. Voss, Ruchika S. Prakash, Kirk I. Erickson, Chandramallika Basak, Laura Chaddock, Jennifer S. Kim, Heloisa Alves, Susie Heo, Amanda N. Szabo, Siobhan M. White, Thomas R. Wójcicki, Emily L. Mailey, Neha Gothe, Erin A. Olson, Edward Mcauley, Arthur F. Kramer
Kinesiology, Health and Sport Studies
Research has shown the human brain is organized into separable functional networks during rest and varied states of cognition, and that aging is associated with specific network dysfunctions. The present study used functional magnetic resonance imaging (fMRI) to examine low-frequency (0.008 < f < 0.08 Hz) coherence of cognitively relevant and sensory brain networks in older adults who participated in a 1-year intervention trial, comparing the effects of aerobic and nonaerobic fitness training on brain function and cognition. Results showed that aerobic training improved the aging brain’s resting functional efficiency in higher-level cognitive networks. One year of walking increased functional connectivity between aspects of the frontal, posterior, and temporal cortices within the Default Mode Network and a Frontal Executive Network, two brain networks central to brain dysfunction in aging. Length of training was also an important factor. Effects in favor of the walking group were observed only after 12 months of training, compared to non-significant trends after 6 months. A non-aerobic stretching and toning group also showed increased functional connectivity in the DMN after 6 months and in a Frontal Parietal Network after 12 months, possibly reflecting experience-dependent plasticity. Finally, we found that changes in functional connectivity were behaviorally relevant. Increased functional connectivity was associated with greater improvement in executive function. Therefore the study provides the first evidence for exercise-induced functional plasticity in large-scale brain systems in the aging brain, using functional connectivity techniques, and offers new insight into the role of aerobic fitness in attenuating age-related brain dysfunction.
The Effectiveness Of Mentoring-Based Professional Development On Physical Education Teachers' Pedometer And Computer Efficacy And Anxiety, Jeffrey J. Martin, Nate Mccaughtry, Pamela Hodges Kulinna, Donetta Cothran, Roberta Faust
The Effectiveness Of Mentoring-Based Professional Development On Physical Education Teachers' Pedometer And Computer Efficacy And Anxiety, Jeffrey J. Martin, Nate Mccaughtry, Pamela Hodges Kulinna, Donetta Cothran, Roberta Faust
Kinesiology, Health and Sport Studies
The purpose of our study was to examine the impact of mentoring-based professional development on physical education teachers' efficacy. Experienced mentor teachers were paired (n = 15) with inexperienced protégé teachers (n = 15) at the beginning of a yearlong intervention study. It was hypothesized that teachers would increase their efficacy to use pedometers and computers to enhance instruction, and reduce their computer anxiety. Repeated-measures ANOVAs for mentors and protégés revealed a variety of significant main effects. We found increases in computer and pedometer efficacy. A second set of repeated-measures ANOVAs based on mentors', protégés', and control groups' …