Effects of fatigue on sternohyoid muscle in control and growth hormone(GH) tumour groups
| Control group | GH group | |
| P0 | -54±5* | -46±9* |
| Vmax | -21±3* | -7±2 |
| G | -18±9 | -32±7* |
| Effmax | -7±4 | -16±2* |
| π | -6±4 | -13±2* |
Data are presented as mean±sem of percentage changes induced by fatigue versus baseline. P0: total isometric stress; Vmax: maximum unloaded shortening velocity; G: curvature of Hill’s hyperbola; Effmax: peak mechanical efficiency; π: crossbridge single force. *: p<0.05 for fatigue versus baseline.