Stretch Shortening Cycle
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. O efeito do atraso em movimentos reversos do cotovelos : comparação entre sujeitos saudaveis e portadores da doença de Parkinson / The effect of delay on the control of reversal movements of the elbow: comparison between healthy individuals and Parkinson s disease patients
Within this study were investigated the effects of special conditions like aging and the Parkinson s disease on the control ofreversal movements ofthe elbow joint performed with a variable delay between the two components (Ml and M2) ofreversal. Another aim was to verify if the stretch-shortening cycle exerts his potentiating effects on muscular contraction
Publicado em: 2005
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2. An Examination of the Stretch-Shortening Cycle of the Dorsiflexors and Evertors in Uninjured and Functionally Unstable Ankles
Objective: To determine if there were differences in concentric peak torque/body-weight (PT/BW) ratios and concentric time to peak torque (TPT) of the dorsiflexors and evertors in uninjured and functionally unstable ankles using a stretch-shortening cycle (SSC) protocol on an isokinetic dynamometer.
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3. Evidence for increased low force cross-bridge population in shortening skinned skeletal muscle fibers: implications for actomyosin kinetics.
The dynamic characteristics of the low force myosin cross-bridges were determined in fully calcium-activated skinned rabbit psoas muscle fibers shortening under constant loads (0.04-0.7 x full isometric tension Po). The shortening was interrupted at various times by a ramp stretch (duration, 10 ms; amplitude, up to 1.8% fiber length) and the resulting tensio
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4. Passive viscoelastic work of isolated rat, Rattus norvegicus, diaphragm muscle.
1. The passive elastic and viscous properties of isolated rat diaphragm muscle were studied, under various strains and strain rates similar to those in the animal, to measure their effects on the storage and release of mechanical potential energy. 2. Increasing the muscle length or amplitude of the displacement increased energy loss per stretch/shorten cycle
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5. Forces and powers of slow and fast skeletal muscles in mice during repeated contractions.
1. The normalized force or power developed during each of a series of repeated contractions was averaged over the entire cycle of activity and rest to provide a measure of performance referred to as sustained force or sustained power. We tested the hypotheses that compared with slow soleus muscles, fast extensor digitorum longus (EDL) muscles would attain lo
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6. Shortening of muscle fibres during stretch of the active cat medial gastrocnemius muscle: the role of tendon compliance.
1. The length of muscle fibres in the medial gastrocnemius (MG) muscle of the anaesthetized cat was measured using ultrasound techniques. During the course of 'isometric' contractions, the muscle fibres shortened by stretching the compliant tendons, until the muscle fibres could no longer produce enough force to stretch the tendons further. At optimal muscle
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7. Force response to rapid length change during contraction and rigor in skinned smooth muscle of guinea-pig taenia coli.
1. Mechanical transients in fibre bundles of skinned smooth muscle of guinea-pig taenia coli at 21-22 degrees C were investigated by recording tension responses to length changes of up to 9%, complete within 0.3 ms. 2. The length-force relationship, recorded continuously during rapid stretch of a Ca(2+)-activated contracted muscle, was linear up to at least