Table 3.

Details of neuromuscular training exercises

	Exercise dose: 10 sets/session, 3 sessions/time (with a 30–60-s rest between each session), 3 times/week, 30 min/time, 12 weeks in total
	Exercise 1	Exercise 2
Weeks 1–2	Starting position: standing, feet shoulder-width apart, and the affected side is holding a fixed table During exercise: Unaffected lower extremity keeps straight and slides forward and backward on the flat ground, while the affected side, as a support, flexes at the same time. When the unaffected side slides back, the weight-bearing side extends gradually from the flexion position. Participants are required to keep the alignment of the hip, knee, and ankle alignment and place the center of gravity on the affected side	Step up: affected side goes up first, with the center of gravity placed on the lower extremity on the affected side. During the flexion-straight process, the affected side is required to perform as slowly as possible, be kept stable, and avoid shake Step down: Unaffected side goes down first. Participants complete the action of descending the steps by controlling the affected side to gradually flex from extension. Being slow, being stable, and avoiding shake like up step exercise are also required
Weeks 3–4	On the basis of weeks 1–2, additionally provide a laterally exerted resistance on the affected joint by using elastic band (Thera-Band, yellow). Participants are required to maintain correct alignment of the lower extremity under resistance (hip, knee, and ankle are on the same sagittal plane)	On the basis of weeks 1–2, participants are asked to hold dumbbells of 1 kg in each hand
Weeks 5–6	The same as weeks 3–4, except adding resistance (red elastic band)	The same as weeks 3–4, except adding resistance (2 kg in each hand)
Weeks 7–8	The same as weeks 3–4, except adding resistance (green elastic band)	The same as weeks 3–4, except adding resistance (3 kg in each hand)
Weeks 9–12	The same as weeks 9–12	The same as weeks 9–12

Reference: [28]