muscle contraction

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muscle contraction

The movement of muscle fibres in response to force or load. 

Muscle contraction types 
• Concentric—The muscle shortens in length as it overcomes resistance.
• Eccentric—The muscle increases in length to accommodate resistance.  
• Isometric—The muscle resists outside stress without exhibiting motion.
References in periodicals archive ?
Voluntary muscle contraction was obtainable in 39 non-traumatic neuropathy patients suggesting that denervation of muscle unit was not complete.
Furthermore, for voluntary muscle contraction under different joint angles, EMG activity and some morphology characteristics have been proved to also change [12-15].
Maximum voluntary muscle contraction of the cervical spine generates high electromyographic signal intensity for most muscles which participate in lateral rotation movements.
Since there are significant differences in muscle activation between electrically elicited and voluntary muscle contraction (Hennings et al., 2007), it would be possible to expect specific response due to voluntary induced LF and HF fatigue in SEMG in comparison to electrically induced fatigue.

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