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Full-Text Articles in Exercise Science
Lower Extremity Muscle Contributions To Acl Loading In Healthy And Acl-Reconstructed Females, Shelby Peel
Lower Extremity Muscle Contributions To Acl Loading In Healthy And Acl-Reconstructed Females, Shelby Peel
Doctoral Dissertations
Females are 16 times greater to sustain a second ACL injury compared to their healthy female counterparts. Many of these females return to play their respective sport after an ACL-reconstruction (ACLR). However, little is known about the influence fatigue in sport has on lower extremity mechanics of ACLR females. The purpose of this study was to investigate the influence muscular fatigue may have on lower extremity mechanics in healthy and ACLR females. It was hypothesized that 1) healthy control and ACLR females would demonstrate different hip, knee, and ankle mechanics, regardless of fatigue, 2) fatigue would influence hip, knee, and …
Examining The Physical Activity Levels Of Youth With Intellectual And Developmental Disabilities During Physical Education And Recess, Vincenzo Nocera
Examining The Physical Activity Levels Of Youth With Intellectual And Developmental Disabilities During Physical Education And Recess, Vincenzo Nocera
Doctoral Dissertations
Introduction: It is currently believed that children with intellectual and/or developmental disabilities (IDD) are less physically active than their peers. The school setting may offer a promising solution to allow children with and without IDD to engage in physical activity (PA). However, the current school-based PA levels of this population remain unclear. Therefore, the purpose of this investigation was to compare the PA levels and related context of youth with and without IDD during the total school day, physical education, and recess. Methods: A total of 13 children (n = 3 with IDD) enrolled in first- and second grade participated …
Bioenergetic Mechanisms Of Age-Related Differences In Muscle Fatigue, Liam F. Fitzgerald
Bioenergetic Mechanisms Of Age-Related Differences In Muscle Fatigue, Liam F. Fitzgerald
Doctoral Dissertations
Muscle fatigue is defined as the reduced capacity to produce torque or power in response to contractile activity. Previous work has observed greater fatigue in older than young adults in response to high-velocity contractions, but similar fatigue with age in response to moderate-velocity contractions. The mechanisms for these age-related differences is not clear. One potential explanation is a greater accumulation of putative agents of fatigue (e.g., Pi, H2PO4-, and H+) in older than young muscle during high- but not moderate-velocity contractions. Older muscle may accumulate these metabolites to greater extent because of deficits …