Assessing the Therapeutic Effect of 630 nm Light-Emitting Diodes Irradiation on the Recovery of Exercise-Induced Hand Muscle Fatigue with Surface Electromyogram

Figure 1

Examples of sEMG signals and the forces recorded during the prefatigue and refatigue tasks until exhaustion for the two types of treatments. (a)–(d) Passive rest therapy, (e)–(h) Active LEDT.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)