Muscle characteristics of muskrats following 9–11 weeks acclimation to a holding tank that restricted aquatic activity either to surface swimming (controls) or to diving
| . | Surface swimmers (N=12) . | Divers (N=12) . | P . |
|---|---|---|---|
| Myoglobin (mg g-1 wet tissue) | |||
| Ventricles | 9.29±0.35 | 8.92±0.29 | 0.212 |
| Biceps brachii | 11.82±0.60 | 12.00±0.37 | 0.398 |
| Biceps femoris | 12.43±0.55 | 12.03±0.42 | 0.285 |
| Gastrocnemius | 13.01±0.51 | 12.84±0.22 | 0.422 |
| Glycogen (mg g-1 wet tissue) | |||
| Biceps brachii | 0.31±0.08 | 0.55±0.20 | 0.139 |
| Biceps femoris | 0.50±0.08 | 0.69±0.16 | 0.150 |
| Buffering capacity (β) | |||
| Biceps brachii | 55.13±0.77 | 54.06±1.60 | 0.276 |
| Biceps femoris | 58.34±2.26 | 57.75±2.36 | 0.429 |
| . | Surface swimmers (N=12) . | Divers (N=12) . | P . |
|---|---|---|---|
| Myoglobin (mg g-1 wet tissue) | |||
| Ventricles | 9.29±0.35 | 8.92±0.29 | 0.212 |
| Biceps brachii | 11.82±0.60 | 12.00±0.37 | 0.398 |
| Biceps femoris | 12.43±0.55 | 12.03±0.42 | 0.285 |
| Gastrocnemius | 13.01±0.51 | 12.84±0.22 | 0.422 |
| Glycogen (mg g-1 wet tissue) | |||
| Biceps brachii | 0.31±0.08 | 0.55±0.20 | 0.139 |
| Biceps femoris | 0.50±0.08 | 0.69±0.16 | 0.150 |
| Buffering capacity (β) | |||
| Biceps brachii | 55.13±0.77 | 54.06±1.60 | 0.276 |
| Biceps femoris | 58.34±2.26 | 57.75±2.36 | 0.429 |
All P values are for one-tailed comparisons of surface swimmers and divers.
β=Slykes (μmoles of base required to titrate the pH of homogenized muscle by one pH unit).