Pain and fatigue after concentric and eccentric muscle contractions.

  title={Pain and fatigue after concentric and eccentric muscle contractions.},
  author={Di Newham and Kerry R. Mills and Brian M. Quigley and R. Timothy Edwards},
  journal={Clinical science},
  volume={64 1},
1. Normal subjects performed a step test in which the quadriceps of one leg contracted concentrically while the contralateral muscle contracted eccentrically. 2. Maximal voluntary force and the force: frequency relationship were altered bilaterally as a result of the exercise, the changes being greater in the muscle which had contracted eccentrically. Recovery occurred over 24 h. 3. Electromyographic studies using three sites on each muscle showed an increase in electrical activation during the… CONTINUE READING
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