Subject 2-set leg 3-set leg
1 20 40
2 12 16
3 16 24
4 8 20
5 8 8
6 16 16
7 8 12
Mean (SD) 12.6 (4.9) 19.4 (10.4)*
Table 3: Comparison of magnitude of strength gain in legs trained with 2 sets and 3 sets of the leg extension exercise using 80% 1RM for six weeks. Results in kg (SD).*indicates statistically different value from 2-set training protocol (p<0.05).