Can stronger pelvic muscle floor improve sexual function?

This study aims to evaluate the association between pelvic floor muscle (PFM) strength and sexual functioning.
Retrospective chart review of consecutive all women who were referred with a primary complaint of sexual dysfunction. Women underwent standardized clinical evaluation including pelvic muscle strength which was ranked from 0 (weak) to 2 (strong). The duration of pelvic muscle contraction was also recorded in seconds. Sexual function was evaluated by using a validated questionnaire, the Female Sexual Function Index (FSFI).
One hundred seventy-six women with a mean age of 37 +/- 11 years were included. Women with strong or moderate PFM scored significantly higher on the FSFI orgasmic and arousal domains than women with weak PFM (5.4 +/- 0.8 vs. 2.8 +/- 0.8, and 3.9 +/- 0.5 vs. 1.7 +/- 0.24, respectively; P < 0.001). The duration of PFM contraction was correlated with FSFI orgasmic domain and sexual arousal (r = 0.26, P < 0.001; r = 0.32, P < 0.0001, respectively).
Our findings suggest that both the orgasm and arousal function are related to better PFM function.