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Full-Text Articles in Life Sciences
A Comprehensive Examination Of Age-Related Lower Limb Muscle Function Asymmetries Across A Variety Of Muscle Action Types, Kylee L. Heap-Eldridge, Brennan J. Thompson, Cody Fisher, Talin J. Louder, Jon Carey
A Comprehensive Examination Of Age-Related Lower Limb Muscle Function Asymmetries Across A Variety Of Muscle Action Types, Kylee L. Heap-Eldridge, Brennan J. Thompson, Cody Fisher, Talin J. Louder, Jon Carey
Kinesiology and Health Science Faculty Publications
Previous research has found that lower limb muscle asymmetries increase with age and are linked to fall and injury risks. However, past studies lack a wide variety of muscle function modes and measures as well as comparison to a comparable younger age group. The purpose of this study was to examine age-related lower limb muscle function asymmetries across a variety of muscle action types and velocities in young and old adults. Lower limb balance, strength, power, and velocity were evaluated with concentric, isometric, isotonic, and eccentric muscle actions during a single-leg stance test and on single- and multi-joint dynamometers in …
Interaction Between Age And Fatigue On Antagonist Muscle Coactivation During An Acute Post-Fatigue Recovery Phase, Sara A. Harper, Brennan J. Thompson
Interaction Between Age And Fatigue On Antagonist Muscle Coactivation During An Acute Post-Fatigue Recovery Phase, Sara A. Harper, Brennan J. Thompson
Kinesiology and Health Science Faculty Publications
This study investigated the age-related changes in antagonist muscle coactivation of the biceps femoris (BF) during an acute recovery period following a leg extensor fatiguing protocol. Twenty-three young (mean ± SD: age = 25.1 ± 3.0 years) and twenty-three old men (age = 71.5 ± 3.9 years) participated. Surface electromyography (sEMG) was recorded from the BF muscles for antagonist muscle coactivation. Testing invovled participants performing leg extension isometric maximal voluntary contractions (MVCs) and isokinetic MVCs at 240°•s-1 at baseline (Pre) and again after the fatigue protocol at 0 (Post0), 7 (Post7), 15 (Post15), and 30 (Post30) minutes post fatigue. …
Which Exercise Interventions Can Most Effectively Improve Reactive Balance In Older Adults? A Systematic Review And Network Meta-Analysis, Youngwook Kim, Michael N. Vakula, David A. E. Bolton, Christopher J. Dakin, Brennan J. Thompson, Timothy A. Slocum, Masaru Teramoto, Eadric Bressel
Which Exercise Interventions Can Most Effectively Improve Reactive Balance In Older Adults? A Systematic Review And Network Meta-Analysis, Youngwook Kim, Michael N. Vakula, David A. E. Bolton, Christopher J. Dakin, Brennan J. Thompson, Timothy A. Slocum, Masaru Teramoto, Eadric Bressel
Kinesiology and Health Science Faculty Publications
Background: Reactive balance is the last line of defense to prevent a fall when the body loses stability, and beneficial effects of various exercise-based interventions on reactive balance in older adults have been reported. However, their pooled evidence on the relative effects has yet to be described. Objective: To review and evaluate the comparative effectiveness of various exercise-based interventions on reactive balance in older adults. Methods: Nine electronic databases and reference lists were searched from inception to August 2021. Eligibility criteria according to PICOS criteria were as follows: (1) population: older adults with the mean age of 65 years or …
How “Dependent” Are We? A Spatiotemporal Analysis Of The Young And The Older Adult Populations In The Us, Debasree Das Gupta, David W. S. Wong
How “Dependent” Are We? A Spatiotemporal Analysis Of The Young And The Older Adult Populations In The Us, Debasree Das Gupta, David W. S. Wong
Kinesiology and Health Science Faculty Publications
The shifting of a country’s age structure has far-reaching socioeconomic and policy implications. In the US, the changing age structure at the sub-national level has received little research attention. To address this gap, we examine age dependencies across states in the US between 1990 and 2010 using decennial census data. We find that dependency changes have been gradual with a distinct graying of states during this period. Within this overarching trend, the sources of states’ dependencies follow complicated trajectories without clear spatiotemporal patterns. Nevertheless, changes in states’ old-age dependency contributions to respective total dependencies are geographically clustered and the inverse …