Table 1.

Maximal isometric and dynamic knee extension muscle strength obtained before and after 2 wk of immobilization and after 4 wk of retraining in young and old men

YMOM
Isometric strength
    Per body mass, Nm/kg
        Pre3.04 ± 0.161.77 ± 0.14§
        Post2.56 ± 0.14*1.50 ± 0.15*§
        Train2.94 ± 0.18§1.72 ± 0.14§
    Per muscle volume, N/cm2
        Pre12.64 ± 0.839.19 ± 0.81§
        Post11.58 ± 0.717.76 ± 0.76*§
        Train12.19 ± 0.689.01 ± 0.69§
    Dynamic strength per body mass, Nm/kg
        Pre2.38 ± 0.151.43 ± 0.11§
        Post1.79 ± 0.10*1.06 ± 0.12*§
        Train2.35 ± 0.12§1.32 ± 0.13§
  • Values are means ± SE; n = 11 young men (YM) and n = 9 old men (OM). Pre, before 2 wk of immobilization; Post, after 2 wk of immobilization; Train, after 4 wk of retraining. Significantly different from

  • * Pre and

  • Post: P < 0.05.

  • § OM significantly different from YM: P < 0.05.