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Architectural and functional features of human triceps surae muscles during contraction.
Architectural properties of the triceps surae muscles were determined in vivo for six men. The ankle was positioned at 15 degrees dorsiflexion (-15 degrees) and 0, 15, and 30 degrees plantar flexion,Expand
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In vivo behaviour of human muscle tendon during walking
In the present study we investigated in vivo length changes in the fascicles and tendon of the human gastrocnemius medialis (GM) muscle during walking. The experimental protocol involved real–timeExpand
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Muscle volume is a major determinant of joint torque in humans.
Muscle force (MF) is linearly related to physiological cross-sectional area (CSA), which is obtained from muscle volume (MV) divided by fibre length. Taking into account the fact that joint torqueExpand
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Physiological cross‐sectional area of human leg muscles based on magnetic resonance imaging
Magnetic resonance imaging techniques were used to determine the physiological cross‐sectional areas (PCSAs) of the major muscles or muscle groups of the lower leg. For 12 healthy subjects, theExpand
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Influence of static stretching on viscoelastic properties of human tendon structures in vivo.
The purpose of this study was to investigate the influences of static stretching on the viscoelastic properties of human tendon structures in vivo. Seven male subjects performed static stretching inExpand
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Effects of isometric training on the elasticity of human tendon structures in vivo.
The present study aimed to investigate the effect of isometric training on the elasticity of human tendon structures. Eight subjects completed 12 wk (4 days/wk) of isometric training that consistedExpand
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Muscle-fiber pennation angles are greater in hypertrophied than in normal muscles.
Muscle-fiber pennation angles were measured in vivo with the use of ultrasonography to investigate the relationship between fiber pennation and muscle size for 32 male subjects (from untrainedExpand
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Determination of fascicle length and pennation in a contracting human muscle in vivo.
We have developed a technique to determine fascicle length in human vastus lateralis muscle in vivo by using ultrasonography. When the subjects had the knee fully extended passively from a positionExpand
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Effects of plyometric and weight training on muscle-tendon complex and jump performance.
PURPOSE The purpose of this study was to investigate the effects of plyometric and weight training protocols on the mechanical properties of muscle-tendon complex and muscle activities andExpand
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Specific tension of human plantar flexors and dorsiflexors.
Reported specific tension measurements for human skeletal muscle vary widely. This variability could be due, at least in part, to the determination of the physiological cross-sectional area (PCSA) ofExpand
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