Table 2. Force of hip extensor with and without the pelvic compression belt during performing PHE-KE and PHE-KF (n=15)

	Without PCBs	With PCBs	Within-posture difference (99% CI)	Between-posture difference (99% CI)	p-value
PHE-KE	6.83±3.17	8.27±3.60	1.44 (1.11, 1.76)	3.34 (2.63, 4.19)	p<0.001
PHE-KF	7.09±3.85	12.50±4.38	5.40 (5.00, 5.81)

Values are means±SD.
p<0.001.
Abbreviations: CI, confidence interval; PCBs, pelvic compression belts; PHE-KE, prone hip extension with knee extension; PHE-KF, prone hip extension with knee flexion.