Table 3.

Exercise descriptors (from Toigo and Boutellier²⁷ for included trials)

Exercise descriptors	Houck et al 32			Jeong et al 31				Kulig et al 33
	BLHR	TheraBand ADD/INV in PF	SLHR	Theraband PF, DF, INV, EV (weeks 1–6)	Seated HR (weeks 1–2)	BLHR (weeks 3–4, 5–6)	SLHR (weeks 5–6)	ADD in PF (concentric)	ADD in PF (eccentric)
1. Load magnitude	BW	Increasing resistance	BW	Red → blue → black	Partial BW	BW → loaded	BW	15 RM	15 RM
2. Number of repetitions	10 → 30	10 → 30	10 → 30	20	20	15	15	15	15
3. Number of sets	2 → 3	2 → 3	2 → 3	4	4	3	3	3	3
4. Rest in between sets (s or min)	NR	NR	NR	30 s	30 s	30 s	30 s	1–2 min	1–2 min
5. Number of exercise interventions (per day or week)	2×/day	2×/day	2×/day	NR	NR	NR	NR	2×/day	2×/day
6. Duration of experimental period (days or weeks)	12 weeks	12 weeks	12 weeks	6 weeks	6 weeks	6 weeks	6 weeks	12 weeks	12 weeks
7. Fractional/temporal distribution of the contraction per repetition and duration (s) of one repetition	Isotonic	Isotonic	Isotonic	Isotonic	Isotonic	Isotonic	Isotonic	Concentric	Eccentric
8. Rest in between repetitions (s or min)	NR	NR	NR	NR	NR	NR	NR	NR	NR
9. Time under tension (s)	NR	NR	NR	NR	NR	NR	NR	5 s	5 s
10. Volitional muscular failure	No	Yes	No	NR	NR	NR	NR	No	No
11. Range of motion	Full	Full	Full	NR	NR	NR	NR	Neutral → EOR	EOR → Neutral
12. Recovery time in between exercise sessions (hours or days)	NR	NR	NR	NR	NR	NR	NR	NR	NR
13. Anatomical definition of the exercise (exercise form) described	Yes	Yes	Yes	No	No	No	No	Yes	Yes
Total	7			4				11

Items 1–6, classical set of descriptors; items 7–13 (shaded), new set of descriptors.

ADD, adduction; BLHR, bilateral heel raise; BW, body weight; DF, dorsiflexion; EV, eversion; EOR, end of range; HR, heel raise; INV, inversion; NR, not reported; PF, plantar flexion; RM, repetition maximum; SLHR, single leg heel raise.