Effects of 830 nm Light-Emitting Diode Therapy on Delayed-Onset Muscle Soreness

Table 2

Thigh circumference and muscle strength in the LEDT and placebo groups before and immediately after exercise and at 24, 48, 72, and 96 h postexercise.

Outcome measures	LEDT group (n = 20)	Placebo group (n = 20)
Thigh circumference above 10 cm (cm)
Before exercise	46.24 ± 2.95	46.17 ± 5.39
Immediately after exercise	45.89 ± 3.19	46.40 ± 5.77
24 h postexercise	45.71 ± 4.12	46.38 ± 5.91
48 h postexercise	45.69 ± 3.28	46.23 ± 5.44
72 h postexercise	45.91 ± 3.40	46.29 ± 5.78
96 h postexercise	46.09 ± 3.78	46.77 ± 4.48
Thigh circumference above 20 cm (cm)
Before exercise	53.76 ± 3.85	53.79 ± 6.52
Immediately after exercise	52.21 ± 4.80	53.70 ± 7.53
24 h postexercise	52.13 ± 5.23	53.56 ± 6.98
48 h postexercise	52.03 ± 5.06	53.64 ± 6.86
72 h postexercise	52.07 ± 4.96	53.45 ± 5.80
96 h postexercise	53.95 ± 4.99	53.33 ± 6.94
Muscle strength (Ib)
Before exercise	46.97 ± 14.12	44.72 ± 12.25
Immediately after exercise	50.25 ± 17.57	48.48 ± 11.31
24 h postexercise	51.22 ± 15.43	47.91 ± 12.12
48 h postexercise	51.32 ± 14.51	46.55 ± 15.27
72 h postexercise	51.67 ± 12.53	47.78 ± 11.76
96 h postexercise	52.63 ± 17.34	49.52 ± 11.75