Table 5. Plantar flexor neural variables.

Maximal M-wave (M_max, mV), V-wave to maximal M-wave ratio (V/M_max, %), maximal H-wave (H_max, % M_max), slope at 50% H_max (H_slp, mV/mA), current (i), all i variables normalised to current at 50% M_max, current at H-wave threshold (iH_th), current at 50% H_max (iH₅₀), current at H_max (iH_max), for placebo (PLA) and six grams per day of d-aspartic acid (DAA), at baseline (T1), six weeks midpoint (T2) and 12 weeks post testing (T3).

	PLA (n = 8)			DAA (n = 10)
Soleus	T1	T2	T3	T1	T2	T3
Mmax	9.5 ± 3.5	8.0 ± 2.3	9.8 ± 4.4	9.8 ± 2.6	11.3 ± 5.4	8.9 ± 4.0
V/Mmax	30.46 ± 27.75	34.08 ± 29.28	26.49 ± 18.60	24.89 ± 9.33	30.37 ± 17.62	28.92 ± 20.29
Hmax	44.1 ± 18.3	47.4 ± 18.2	47.6 ± 15.4	45.3 ± 12.4	46.3 ± 17.4	39.8 ± 12.5
Hslp	2.1 ± 1.4	2.6 ± 2.3	2.8 ± 1.7	2.1 ± 1.3	2.9 ± 2.3	2.3 ± 1.7
iHth	59.0 ± 27.0	50.8 ± 23.0	40.3 ± 8.8	47.8 ± 19.1	44.5 ± 17.1	49.8 ± 21.0
iH50	70.8 ± 29.5	62.4 ± 25.6	51.0 ± 9.5	60.8 ± 23.5	54.8 ± 20.1	62.5 ± 20.6
iHmax	82.7 ± 32.3	74.1 ± 29.4	61.8 ± 12.5	73.8 ± 28.3	65.0 ± 23.7	75.2 ± 22.2
Gastrocnemius	T1	T2	T3	T1	T2	T3
Mmax	7.7 ± 3.0	9.0 ± 3.1	8.9 ± 3.5	9.7 ± 2.8	10.1 ± 3.5	10.7 ± 2.9
V/Mmax	26.50 ± 28.41	30.87 ± 28.76	24.50 ± 18.54	22.20 ± 9.91	25.30 ± 10.41	27.40 ± 30.24
Hmax	49.3 ± 22.3	34.9 ± 18.0	36.5 ± 20.4	41.7 ± 21.5	38.4 ± 18.6	31.4 ± 13.5
Hslp	2.2 ± 1.3	1.9 ± 1.6	2.5 ± 2.0	2.1 ± 1.7	2.5 ± 1.7	1.6 ± 1.2
iHth	46.0 ± 18.7	54.6 ± 31.8	40.0 ± 8.1	47.5 ± 19.4	46.5 ± 19.3	44.6 ± 15.0
iH50	59.7 ± 20.2	66.9 ± 35.0	49.6 ± 7.3ϕ	60.9 ± 23.1	54.1 ± 20.3	61.5 ± 22.4
iHmax	73.42 ± 23.5	79.2 ± 39.0	59.3 ± 9.1*ϕ	74.3 ± 28.1	63.8 ± 25.0	76.2 ± 29.0

Data are mean ± SD.

* significant between-group differences, as compared to T1 (p<0.05).

^ϕ significant between-group differences, as compared to T2 (p<0.05).