@article {Kolosova:September 2006:0090-2977:360,
	author = "Kolosova, E.",
	author = "Slivko, E.",
	title = "Fatigue-induced modulation of the H reflex of soleus muscle in humans",
	journal = "Neurophysiology",
	volume = "38",
	year = "September 2006",
	abstract = "We studied the effect of fatigue of the <I>mm. gastrocnemius-soleus</I> on the H reflex elicited by transcutaneous stimulation of <I>n. tibialis</I> and recorded from the <I>m. soleus</I>; healthy 18-to 34-year-old volunteers were tested. Fatigue was evoked by long-lasting (6 to 9 min) voluntary tonic static sole flexion of the foot (ankle extension) with a force equal to 75% of the maximum voluntary contraction (MVC). The amplitude of H reflex significantly (<I>P</I> &#60; 0.001) decreased to about 60% of the initial value immediately after the period of fatiguing effort. Within 2 to 3 min, it relatively rapidly recovered and reached about 90% of the control, and this was followed by a period of slow recovery to about 96-97% of the initial value 30 min after conditioning fatigue. We suppose that the initial period of suppression of the H reflex results to a considerable extent in an increase in the intensity of presynaptic inhibition of transmission from Ia afferents due to tonic activation of high-threshold (groups III and IV) afferent fibers induced by intensive fatigue-related metabolic changes in the muscles. More long-lasting (tens of minutes) changes are related to slow reverse development of direct effects of fatigue-induced biochemical shifts in the muscle.",
	pages = "360-364(5)",
	url = "http://www.ingentaconnect.com/content/klu/neph/2006/00000038/F0020005/00000072"
	doi = "doi:10.1007/s11062-006-0072-4"
}