Are you doing all the right postpartum exercises and still feel like something's missing? The missing piece might actually be in your hands.
A client asked me why her physiotherapist tested her grip strength during a pelvic floor follow-up. She thought it was a mix-up, wrong chart, wrong body part. It wasn't. Handgrip strength and pelvic floor muscle strength turn up together in the research often enough that some clinics use a grip test as a quick screen before a more involved pelvic floor exam.
What Actually Links the Two
The intuitive explanation people reach for is some kind of direct mechanical link, tension traveling from the hand through the fascia to the pelvis. That specific mechanism isn't what the research shows. In the largest study on this, examining 929 women at a gynecology outpatient clinic, handgrip strength was independently associated with normal pelvic floor muscle strength, even after accounting for birth history, waist circumference, and how much of the day someone spent sedentary.1 Smaller studies have found the same pattern using different measurement tools, including direct pelvic floor electromyography.
The link isn't your hand talking to your pelvis. It's that both are reporting on the same thing, your body's overall neuromuscular strength. A lower grip-strength reading and lower pelvic floor muscle strength tend to show up together not because one causes the other, but because both are downstream of the same whole-body strength reserve, the same reason grip strength is already used as a general marker of frailty and muscle loss in older adults, far outside any conversation about the pelvis.
What This Is Actually Useful For
None of the studies behind this were done specifically in postpartum women, and none of them tracked grip strength at one point in time to predict pelvic floor problems later. What they show is a snapshot correlation, not a prediction. But postpartum is exactly the period when whole-body neuromuscular fatigue is common, sleep is disrupted, and overall strength has usually dropped from where it was. That is the same state the research associates with lower pelvic floor muscle strength.
So a simple grip check is a legitimate, low-effort data point in postpartum coaching, one more thing worth noticing alongside how someone breathes, how they load a squat, how their core responds under load. It was never going to replace an actual pelvic floor assessment, and it isn't trying to. It's one more honest signal about where the whole system stands, not a diagnosis on its own.
If you're rebuilding strength postpartum and want that whole-system view instead of one muscle assessed in isolation, that's what postpartum coaching is built around.
- Zhu HM, Gao L, Xie B, Jiao W, Sun XL. [Investigation and influencing factors on pelvic floor muscle strength of 929 adult females in gynecological outpatient department]. Zhonghua Fu Chan Ke Za Zhi. 2023;58(5):351-358. doi:10.3760/cma.j.cn112141-20230306-00100. A cross-sectional association in general gynecology outpatients, not a postpartum-specific or predictive study, cited here for the correlation itself, not as evidence of a causal or prospective link. ↩
