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Muscle work is biased toward energy generation over dissipation in non-level running
(East Carolina University, 2008-12-05)
This study tested the hypothesis that skeletal muscles generate more mechanical energy in gait tasks that raise the center of mass compared to the mechanical energy they dissipate in gait tasks that lower the center of ...
Chronic low-frequency rTMS of primary motor cortex diminishes exercise training-induced gains in maximal voluntary force in humans
(East Carolina University, 2009)
Although there is consensus that the central nervous system mediates the increases in maximal voluntary force (maximal voluntary contraction, MVC) produced by resistance exercise, the involvement of the primary motor cortex ...
Changes in muscle strength, muscle fibre size and myofibrillar gene expression after immobilization and retraining in humans
(East Carolina University, 2000-01)
1. Changes in muscle strength, vastus lateralis fibre characteristics and myosin heavychain (MyoHC) gene expression were examined in 48 men and women following 3 weeks of knee immobilization and after 12 weeks of retraining ...
Muscles do more positive than negative work in human locomotion
(East Carolina University, 2007-10)
Muscle work during level walking and ascent and descent ramp and stairway walking was assessed in order to explore the proposition that muscles perform more positive than negative work during these locomotion tasks. Thirty ...
How do low horizontal forces produce disproportionately high torques in human locomotion?
(East Carolina University, 2008)
Although horizontal ground forces are only ~15% of vertical forces, they account for 47% and 33% of the metabolic cost in walking and running. To explain these disproportionately high metabolic costs we hypothesized that ...
Teager-Kaiser Operator improves the accuracy of EMG onset detection independent of signal-to-noise ratio
(East Carolina University, 2008)
A temporal analysis of electromyographic (EMG) activity has widely been used for non-invasive study of muscle activation patterns. Such an analysis requires robust methods to accurately detect EMG onset. We examined whether ...