. 2015 Apr 22;114(1):400–410. doi: 10.1152/jn.00136.2015

Table 2.

Relationship of periodic reflex modulation in pairs of antagonistic muscle groups

	n_{mod_total}	n_single	%	n_reciprocal	%	n_synchron	%	n_fluctuating	%
Q	136	36	26.5	52	38.2	45	33.1	3	2.2
Ham	154	54	35.1	52	33.8	45	29.2	3	1.9
TA	61	17	27.9	2	3.3	41	67.2	1	1.6
TS	80	36	45.0	2	2.5	41	51.3	1	1.3

Q, quadriceps; Ham, hamstrings; TA, tibialis anterior; TS, triceps surae; n_{mod_total}, total no. of recording sections containing segments with periodic reflex modulation per muscle group; n_single, periodic alternation in 1 of the antagonistic muscles only; n_reciprocal, reciprocal modulation; n_synchron., synchronous modulation in pairs of antagonistic muscle groups; n_fluctuating, fluctuation between reciprocal and synchronous modulation.