Musculotendinous Stiffness of Triceps Surae, Maximal Rate of Force Development, and Vertical Jump Performance

Table 1

Performances in a countermovement vertical jump (CMJ), body mass (BM), body height (BH), torque during maximal voluntary contraction (, /BM), and maximal rate of torque development (MRTD, MRTD/BM, and MRTD/) in all the subjects, in high (H), medium (M), and low (L) performers in vertical jump (CMJ). Means ± SD. , , and significance levels of the differences between groups L, H, and M (ANOVA; post hoc Bonferroni -test).

	All ( = 27)	H ( = 9)		M ( = 9)		L ( = 9)
CMJ (cm)	70.6 ± 8.2	78.8 ± 2.5		71.8 ± 1.39		61.3 ± 6.2
BM (kg)	78.5 ± 9.3	76.1 ± 9.0	NS	82.1 ± 10.8	NS	77.3 ± 7.8	NS
BH (cm)	182 ± 7	181 ± 8	NS	184 ± 6	NS	182 ± 7	NS
(N⋅m)	111 ± 22	116 ± 29	NS	113 ± 22	NS	105 ± 15	NS
/BM (N⋅m⋅kg^−1)	1.42 ± 0.27	1.52 ± 0.32	NS	1.38 ± 0.29	NS	1.36 ± 0.19	NS
MRTD (N⋅m⋅s^−1)	425 ± 119	487 ± 148	NS	433 ± 100	NS	355 ± 65	NS
MRTD/ (s^−1)	3.84 ± 0.81	4.23 ± 0.93	NS	3.86 ± 0.60	NS	3.43 ± 0.73	NS
MRTD/BM (N⋅m⋅s^−1⋅kg^−1)	5.45 ± 1.56	6.44 ± 1.99	NS	5.26 ± 0.96	NS	4.66 ± 1.09	0.041

NS: not significant.