Table 3 Population distribution characteristics of sEMG measurement of postpartum women at 6–8 weeks postpartum
Stage | Standard value | Total postpartum women (n%) | Cesarean section postpartum women (n%) | Vaginal delivery postpartum women (n%) | |
|---|---|---|---|---|---|
Pre-baseline stage | Average | (< 4uv) | 319(58.75%) | 160(71.75%) | 159(49.69%) |
Variability | (< 0.2) | 160(29.47%) | 65(29.15%) | 95(29.69%) | |
Fast muscle (type II fiber) stage | Maximum | (> 40uv) | 330(60.77%) | 117(52.47%) | 213(66.56%) |
Rising time | (< 0.5s) | 253(46.59%) | 96(43.05%) | 157(49.06%) | |
Recovery time | (< 0.5s) | 326(60.04%) | 127(56.95%) | 199(62.19%) | |
Slow muscle (type I fiber) stage | Average | (> 35uv) | 419(77.16%) | 149(66.82%) | 270(84.38%) |
Variability | (< 0.2) | 318(58.56%) | 112(50.22%) | 206(64.38%) | |
Endurance stage | Average | (> 30uv) | 402(74.03%) | 147(65.92%) | 255(79.69%) |
Variability | (< 0.2) | 296(54.51%) | 104(46.64%) | 192(60.00%) | |
Last/first 10 s ratio | (0.8–1.2) | 124(22.84%) | 42(18.83%) | 106(33.13%) | |
Post-baseline stage | Average | (< 4uv) | 237(43.65%) | 118(52.915) | 117(36.56%) |
Variability | (< 0.2) | 167(30.76%) | 70(31.39%) | 98(30.62%) | |