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Tumuluri Aruna
Tumuluri Aruna
Tanzania
Publications
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Research Article
Strength Loss Counteracts Age-related Improvements in Muscle Fatigue Properties when Considering Functional Task Endurance A Modeling Study
Author(s): Avin Keith G, Tumuluri Aruna, Looft John MSE and Frey-Law Laura A Avin Keith G, Tumuluri Aruna, Looft John MSE and Frey-Law Laura A
Background: Older adults may fatigue more easily than their younger counterparts during functional activities, yet controlled laboratory studies have demonstrated the opposite; muscle becomes more fatigue-resistant with age. We hypothesized that increased task intensities during daily activities due to strength loss may explain this apparent dichotomy. Accordingly, the purpose of this study was to model the potentially opposing influences of age-related improvements in muscle fatigue properties coupled with declining strength on predicted task endurance. Methods: We developed two mathematical models to simulate the relative influences of age-related changes in muscle fatigue and strength: 1) We adapted known endurance time-intensity fatigue models for young adults for older adults based on previously published data; and 2) We modeled changes in functional task intensity for varying le.. View More»
DOI: 10.4172/2167-7182.1000218