Table 1.

Calf exercise dosage for each group. RM repetition maximum; TUT time-under-tension; DF dorsiflexion; PF plantarflexion; min minutes; S seconds

	Group 1 High intensity with high time-under-tension	Group 2 High intensity with low time-under-tension	Group 3 Low intensity with high time-under-tension	Group 4 Low intensity with low time-under-tension
Load intensity	6 RM	6 RM	18 RM	18 RM
Repetition	6	6	18	18
Sets	4	4	4	4
Frequency	3×/week	3×/week	3×/week	3×/week
Duration	12 weeks	12 weeks	12 weeks	12 weeks
Contraction time/rep	3 s concentric 3 s eccentric	1 s concentric 1 s eccentric	3 s concentric 3 s eccentric	1 s concentric 1 s eccentric
Rest in between reps	No	No	No	No
Rest in between sets	2 min	2 min	2 min	2 min
Contraction time per set	36 s	12 s	108 s	36 s
Total contraction time	288 s	96 s	864 s	288 s
Total loading time in session (with rests)	16 min and 48 s	13 min and 36 s	19 min and 12 s	16 min and 48 s
Volitional muscular failure	Yes	Yes	Yes	Yes
Range of motion	0° to 15° DF 0° to 50° PF	0° to 15° DF 0° to 50° PF	0° to 15° DF 0° to 50° PF	0° to 15° DF 0° to 50° PF
Time between sessions	48 h	48 h	48 h	48 h
Exercise form	Seated and standing calf raising both performed on a Smith machine with barefoot	Seated and standing calf raising both performed on a Smith machine with barefoot	Seated and standing calf raising both performed on a Smith machine with barefoot	Seated and standing calf raising both performed on a Smith machine with barefoot