Abstract
1967 H-reflex size is lower in elite sprinters & volleyball players (1) and in rats following plyometric training (2), compared to controls. It is unknown if the elderly or young varsity power athletes who weight train have a lower H-reflex size than peers who do not weight train. A reduced stretch reflex gain may be detrimental due to the role of the stretch reflex in enhancing force output during ankle extension while walking, running or doing plyometric movements. Bilateral 1RM strength of the ankle extensor muscles, divided by body weight (BW), and soleus H-reflex size (Hmax/Mmax ratio) was measured in weight trained (minimum 2 yrs training) and not weight trained old (71±5.7 yrs, mean±SD) and young (24±4.2 yrs) subjects. (Table)TableOld subjects and young varsity athletes with greater muscle strength following regular weight training have a H-reflex size similar to age matched controls.
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