Table 3 Maximum torque (MT [N m]) and maximum rate or torque development (MRTD, [N m s−1]) at different muscular pretensions (PT10, PT20, PT30, PT40) of knee extension and flexion at and between sessions 1 and 2 (M ± SD), n = 35 and the differences between pretensions and sessions
From: Reliability and effects of muscular pretension on isometric strength of older adults
Movement | Variable | Session | PT10 | PT20 | PT30 | PT40 | Significant differences |
|---|---|---|---|---|---|---|---|
Knee extension | MT [N m] | 1 | 191.8 ± 70.2 | 196.6 ± 68.8 | 197.7 ± 62.8 | 201.8 ± 60.4 | PT10 to PT20, 30, 40 (p <0.05) |
2 | 208.9 ± 70.0◊ | 210.6 ± 67.5◊ | 213.6 ± 61.5◊ | 214.4 ± 64.4◊ | PT10 to PT40 (p <0.05) | ||
MRTD [N m s−1] | 1 | 904.9 ± 464.9 | 793.4 ± 415.6 | 707.1 ± 383.8 | 694.6 ± 318.2 | PT10 to PT20, 30, 40 and PT20 to PT30, 40 (p <0.05) | |
2 | 836.5 ± 448.8 | 811.2 ± 425.0 | 721.8 ± 333.7 | 720.1 ± 349.0 | PT10 to PT30, 40 and PT20 to PT 30, 40 (p <0.05) | ||
Knee flexion | MT [N m] | 1 | 172.8 ± 77.5 | 175.9 ± 79.0 | 175.9 ± 70.0 | 185.0 ± 69.8 | – |
2 | 185.7 ± 66.4◊ | 187.5 ± 68.1◊ | 185.9 ± 68.3◊ | 188.1 ± 67.2 | – | ||
MRTD [N m s−1] | 1 | 564.8 ± 369.8 | 586.5 ± 404.6 | 520.0 ± 323.3 | 467.6 ± 302.5 | PT10, 20, 30 to PT40 (p <0.05) PT20 to PT30 (p <0.05) | |
2 | 656.2 ± 388.9◊ | 616.7 ± 402.5 | 581.7 ± 361.3 | 550.3 ± 325.6◊ | PT10, 20 to PT40 (p <0.05) |