a decreasing trendP < 0.001
an increasing trendP < 0.001
RM-ANOVA showed a decreasing trend of the groin, leg, and back pain in the EG in the second to sixth hours after the trial (P < 0.001 for each area of pain measured), while in the CG groin, leg and back pain had an increasing trend (P < 0.001 for each area of pain measured) (Fig. 2 , 3 , 4 ).