Study Questions Handgrip Strength as Predictor of Prostate Cancer Risk
Large-scale analysis of European men finds no independent link between low handgrip strength and prostate cancer diagnosis.
A recent study published in Maturitas has cast doubt on the use of handgrip strength (HGS) as a screening tool for prostate cancer. The research, analyzing data from over 64,000 men, found that the association between low HGS and higher prostate cancer risk disappeared once other health factors were considered.
"HGS alone is not a reliable predictor of prostate cancer risk in older European men." – Study Authors
Key Findings
The study analyzed data from 64,371 men aged 50 and above, drawn from the Survey of Health, Ageing, and Retirement in Europe (SHARE), with follow-up from 2004 to 2022.
- Initial models showed a small statistical connection between lower handgrip strength and a higher risk of prostate cancer.
- After carefully adjusting for factors like age, BMI, mental health, and chronic conditions, this link became statistically insignificant.
- Further tests using propensity score matching—a method to account for differences in health backgrounds—also failed to show a significant independent effect of handgrip strength when country-level adjustments were applied.
Implications for Health Screening
While HGS is widely recognized as a valuable marker of overall health and frailty, its specific role in prostate cancer screening appears limited.
The study highlights a crucial nuance: earlier findings linking low HGS to overall cancer mortality may not translate to site-specific cancers, like prostate cancer. This underscores the need for targeted, cancer-specific research rather than relying on general health metrics.
Study Limitations
The authors note several important caveats to the findings:
- Potential residual confounding from unmeasured factors such as diet, physical activity levels, genetics, and access to healthcare could still influence the results.
- Generalizability may be limited because the study excluded participants with hand arthritis, a condition that could affect both grip strength and health outcomes.