Table 3.
Thigh external rotators: percentage change in muscle volume during bedrest and recovery in CTR, RE, and RVE groups
| Day of BedRest/Recovery |
||||||
|---|---|---|---|---|---|---|
| Group | BDC | HDT27/28 | HDT55/56 | R + 14 | R + 90 | R + 180 |
| Obturator externus | ||||||
| CTR | 73.3 (13.9) | 0.6 (12.1)% | −4.3 (8.9)% | −1.7 (9.6)% | 0.4 (6.7)% | 0.6 (7.2)% |
| RE | 77.4 (21.2) | −2.8 (10.1)% | −1.2 (11.0)% | 4.1 (12.8)% | 5.1 (12.3)% | 1.4 (12.4)% |
| RVE | 68.5 (11.8) | −6.3 (7.1)%* | −3.7 (6.3)% | −2.6 (5.2)% | 0.2 (7.0)% | 0.7 (5.1)% |
| Obturator internus | ||||||
| CTR | 80.3 (12.4) | −0.6 (5.1)% | −3.0 (5.9)% | 3.3 (5.3)% | −2.5 (5.4)% | 1.4 (5.0)% |
| RE | 82.1 (10.4) | 4.3 (4.5)%* | 8.3 (5.9)%‡ | 6.4 (5.0)%† | 2.8 (5.2)% | 5.5 (5.8)%* |
| RVE | 75.9 (5.5) | −0.9 (8.1)% | −0.2 (7.4)% | 3.8 (7.8)% | 1.3 (7.8)% | 5.4 (8.3)% |
| Quadratus femoris | ||||||
| CTR | 46.3 (13.0) | −9.8 (12.2)%* | −18.1 (13.3)%‡ | −10.0 (11.4)%* | −4.5 (9.8)% | −3.6 (9.8)% |
| RE | 41.4 (9.4) | −5.5 (8.1)% | −8.2 (9.4)%* | −4.0 (9.5)% | 1.0 (7.5)% | −2.8 (8.1)% |
| RVE | 43.7 (13.6) | −9.5 (7.2)%† | −14.4 (9.8)%‡ | −2.9 (6.8)% | 7.3 (8.5)%* | 3.9 (10.0)% |
| Piriformis | ||||||
| CTR | 44.3 (10.4) | −0.6 (8.2)% | −2.0 (6.7)% | 3.1 (6.4)% | −2.4 (5.2)% | −0.6 (5.1)% |
| RE | 43.2 (4.4) | 12.1 (9.1)%† | 12.9 (9.2)%‡ | 7.5 (11.8)% | 10.2 (10.0)%* | 5.4 (8.5)% |
| RVE | 43.9 (6.8) | 0.2 (7.1)% | 1.9 (7.2)% | 6.8 (8.4)%* | 5.0 (8.2)% | 4.0 (7.7)% |
At BDC, values are means (SD) muscle volume (in ml). Subsequent to BDC, values are means (SD) percentage change compared with BDC. Significant difference of the percentage change in muscle volume compared with baseline (BDC):
*
P < 0.05;
†
P < 0.01;
‡
P < 0.001.