Table 2.

Neuromuscular transmission stability and near fiber parameters

Parameter	Masters Athletes	Age-Matched Controls	Difference, %
NF area, kV·s−1·ms−1	7.5 ± 2.6	8.1 ± 3.8
NF duration, ms	4.3 ± 0.8	4.8 ± 1.3
Maximum NF interval, ms	1.3 ± 0.3	1.2 ± 0.3
NF fiber count, no.	2.2 ± 0.3	2.7 ± 0.7*	−19
NF jiggle, %	49.8 ± 8.6	63.2 ± 13.1*	−21
NF jitter, μs	47.4 ± 7.8	58.2 ± 13.1*	−19

Data are means ± SD.

NF, near fiber.

^*Significant difference between masters athletes and age-matched controls.