TABLE 1.

Motor-unit discharge rates, discharge rate variability, and CIS

	Motor-Unit Pairs	GM Discharge Rate, pps	GM CV Discharge Rate, %	CIS (Extra Synch.), spikes/s	Peak Width, ms
2-digit
FPL-FDP2	132	10.83 ± 0.12	21.49 ± 1.60	0.49 ± 0.02	18.94 ± 0.53
FPL-FDP3	102	10.65 ± 0.10	20.70 ± 0.85	0.35 ± 0.02	20.68 ± 0.67
5-digit
FPL-FDP2	106	11.33 ± 0.11	23.67 ± 1.05	0.45 ± 0.02	20.01 ± 0.64
FPL-FDP3	117	10.93 ± 0.10	22.42 ± 0.68	0.38 ± 0.02	21.00 ± 0.63

Values are means ± SE. For each grip, the number of motor-unit pairs from flexor pollicis longus (FPL)-first flexor digitorum profundis (FDP2) and FPL-FDP3 used for analysis is given together with the geometric mean (GM) of motor-unit discharge rate and the GM of coefficient of variation (CV) of motor-unit discharge rate, the common input strength index (CIS) and the width of the cross-correlogram peak.