The effect of mucle fibre
type on eccentric exercise damage.
Past evidence
- Armstrong (1983) ran rats downhill on treadmills.
- Primarily damaged postural leg extensors (red, slow-twitch,
oxidative).
- Shown mainly by biochemical markers.
- Lieber (1988) did eccentric contractions of rabbit tibialis
anterior muscles.
- Damaged intermediate (fast-fatigue-resistant,
fast-oxidative-glycolytic) more than fast (white,
fast-fatiguable, fast-glycolytic) fibres.
- Morgan (1990) proposed a mechanism
for muscle stretch which does not predict a dependence on fibre
type.
 
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