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. 2011 Jan 13;110(4):926–934. doi: 10.1152/japplphysiol.01105.2010

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.