TABLE 1.

Participant baseline characteristics. Data are mean ± SD.

Variable	COL (n = 8)	PLA (n = 9)
Age (years)	17.0 ± 0.8	16.8 ± 1.0
Height (m)	1.65 ± 0.08	1.67 ± 0.04
Body mass (kg)	62.0 ± 10.7	57.4 ± 6.2
ISO KE MVC (N·m)	185 ± 41	183 ± 48
ISO KF MVC (N·m)	84.2 ± 22.0	80.9 ± 20.2
CON KE MVC (N·m)	138 ± 31	131 ± 29

COL, collagen group; PLA, placebo group; ISO, isometric; KE, knee extension; MVC, maximal voluntary contraction torque; KF, knee flexion; CON, concentric. There were no differences between COL, and PLA (all p > 0.05).