Table 5.
The mean (SD) of muscle median power frequency (Hz) before and after the test in a small box on a different frequency and height of lifting
| SMALL BOX | 1 lift/min(F-K) | 4.3 lift/min(F-K) | 6.67 lift/min(F-K) | 1 lift/min( K-S) | 4.3 lift/min( K-S) | 6.67 lift/min( K-S) | 1 lift/min(S-A) | 4.3 lift/min(S-A) | 6.67 lift/min(S-A) | |
|---|---|---|---|---|---|---|---|---|---|---|
| Erector spine(L3) | Before | 53.74 (9.75) | 50.17 (7.63) | 46.56 (7.15) | 50.16 (9.84) | 46.01 (6.75) | 42.14 (5.07) | 47.38 (8.55) | 45.30 (8.46) | 39.96 (4.29) |
| after | 44.30 (7.63) | 40.51 (5.26) | 36.89 (4.11) | 42.08 (7.73) | 37.30 (6.20) | 35.23 (5.59) | 40.69 (8.98) | 36.74 (7.86) | 33.98 (6.38) | |
| Erector spine(T9) | Before | 50.04 (7.46) | 45.10 (6.22) | 42.92 (6.58) | 44.91 (8.53) | 48.86 (7.18) | 39.18 (6.46) | 42.78 (7.13) | 42.49 (8.02) | 40.15 (6.11) |
| after | 44.25 (7.40) | 40.32 (7.40) | 36.74 (5.19) | 41.24 (8.30) | 37.88 (8.07) | 35.39 (7.02) | 38.30 (9.23) | 38.77 (8.79) | 33.22 (8.55) | |
| Left external oblique | Before | 41.08 (7.94) | 36.36 (7.89) | 35.84 (7.24) | 35.03 (6.43) | 33.32 (5.63) | 31.94 (6..39) | 35.20 (6. 56) | 36.14 (7.77) | 33.74 (8.34) |
| after | 33.01 (9.78) | 31.30 (6.06) | 30.61 (5.67) | 30.43 (9.17_) | 29.05 (6.57) | 28.19 (7.54) | 31.52 (6.19) | 31.15 (9.20) | 29.05 (8.53) | |
| Right external oblique | Before | 42.85 (8.07) | 41.89 (6.52) | 38.04 (5.80) | 39.12 (6.76) | 36.60 (6.66) | 35.19 (6..81) | 39.05 (5. 99) | 39.11 (7.59) | 38.09 (7.94) |
| after | 35.85 (8.49) | 35.62 (5.47) | 33.09 (7.80) | 31.85 (9.75_) | 30.70 (7.14) | 30.90 (8.01) | 31.45 (8.71) | 35.20 (8.80) | 31.61 (8.78) | |