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Mapping of electrical muscle stimulation using MRI.
The purpose of this study was to map the pattern of muscle contractile activity elicited by electromyostimulation (EMS). A secondary interest was to determine whether EMS evoked a different patternExpand
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Skeletal muscle unweighting: spaceflight and ground-based models.
Long-term manned spaceflight requires that flight crews be exposed to extended periods of unweighting of antigravity skeletal muscles. This exposure will result in adaptations in these muscles thatExpand
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Magnetic resonance imaging and electromyography as indexes of muscle function.
Electromyography (EMG) is commonly used to determine the electrical activity of skeletal muscle during contraction. To date, independent verification of the relationship between muscle use and EMGExpand
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Skeletal muscle myosin heavy chain composition and resistance training.
We recently reported that 19 wk of heavy resistance training caused a decrease in the percentage of type IIb and an increase in the percentage of type IIa fibers as determined by qualitativeExpand
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IL-6-induced skeletal muscle atrophy.
Chronic, low-level elevation of circulating interleukin (IL)-6 is observed in disease states as well as in many outwardly healthy elderly individuals. Increased plasma IL-6 is also observed afterExpand
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The relationships among IGF-1, DNA content, and protein accumulation during skeletal muscle hypertrophy.
Insulin-like growth factor-1 (IGF-1) is known to have anabolic effects on skeletal muscle cells. This study examined the time course of muscle hypertrophy and associated IGF-1 peptide and mRNAExpand
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Time course of molecular responses of human skeletal muscle to acute bouts of resistance exercise.
Resistance exercise (RE) training, designed to induce hypertrophy, strives for optimal activation of anabolic and myogenic mechanisms to increase myofiber size. Clearly, activation of theseExpand
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Localized infusion of IGF-I results in skeletal muscle hypertrophy in rats.
Insulin-like growth factor I (IGF-I) peptide levels have been shown to increase in overloaded skeletal muscles (G. R. Adams and F. Haddad. J. Appl. Physiol. 81: 2509-2516, 1996). In that study, theExpand
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Effect of short-term unweighting on human skeletal muscle strength and size.
This study examined the effect of short-term unweighting on strength and size of lower limb muscle groups to predict probable responses to planned 16-d Shuttle flights. Subjects were 10 healthyExpand
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Skeletal muscle responses to lower limb suspension in humans.
Eight subjects participated in a 6-wk unilateral lower limb suspension (ULLS) study to determine the influence of reduced weight bearing on human skeletal muscle morphology. The right shoe wasExpand
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