Journal of Human Sport and Exercise

Presynaptic inhibition of spinal alpha-motoneurons in athletes adapted to different muscle activity

Roman Fomin, Dina Fomina



Changes in the presynaptic inhibition of spinal alpha-motoneurons were studied in athletes during motor activities of different types. In the state where muscles were at relative rest, the presynaptic inhibition of spinal alpha-motoneurons of the m. soleus was stronger in muscle samboists (athletes specializing in the martial art of sambo) and sprinters than in long-distance runners. In samboists performing repeated static loads, the presynaptic inhibition of spinal alpha-motoneurons became stronger from one trial to the next. Both technique training and strength training enhanced the presynaptic inhibition of spinal alpha-motoneurons, this enhancement being greater after strength training.


Presynaptic inhibition; Spinal alpha-motoneurons; Athletes; Different muscle activity


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