Table 1.

Mean stress values ± s.d. normalized to P₀ of purely isometric and eccentric isokinetic contractions at distinct lengths (0.75, 0.8, 0.85, 0.9 and 0.95 L/L₀). n.s. means not significant (p < 0.05). n is the number of samples.

length (L/L0)	control
	stress (P/P0)				paired samples test
	isometric		eccentric		paired differences
	mean	s.d.	mean	s.d.	95% confidence interval of the difference		t	n
					lower	upper			p-value (two-tailed)
0.75	0.03	0.03	0.03	0.01	−0.01	0.02	0.51	11	0.62 (n.s.)
0.80	0.08	0.07	0.12	0.02	−0.09	0.01	−1.67	11	0.13 (n.s.)
0.85	0.17	0.10	0.24	0.04	−0.14	0.00	−2.12	11	0.06 (n.s.)
0.90	0.32	0.11	0.42	0.08	−0.21	0.00	−2.18	11	0.05 (n.s.)
0.95	0.61	0.14	0.71	0.14	−0.26	0.06	−1.45	11	0.18 (n.s.)