Grip Strength May Be Associated With Mental Disorders, Study Finds

Grip strength is a well-known metric in the fitness world—it's crucial for lifting heavier weights and therefore building more muscle. Beyond workouts, it's also essential for daily tasks, like carrying grocery bags, holding your dog's leash, or opening a jar.

In this study, researchers in the U.K. sought to observe any associations between markers of cardiorespiratory fitness (CRF) and grip strength, with anxiety and depression.

They examined data from U.K. Biobank—a prospective cohort study with data points from 502,682 participants ages 40 to 69 in England, Scotland, and Wales. For the purposes of this study, researchers homed in on participants who had at least one measure of grip strength or CRF at baseline, along with those who had completed a Patient Health Questionnaire-9 (PHQ-9) and Generalised Anxiety Disorder-7 (GAD-7) to gauge information on their mental health.

As the study authors write, "This finding highlights the importance of focusing on multiple components of fitness and their associations with mental health." They believe physical fitness could be an "objectively measurable indicator and a modifiable risk factor" for mental health issues such as anxiety and depression.

Of course, considering the positive impact physical fitness can have on mental health, it's not entirely surprising to see these associations. But it is interesting to specifically consider a lack of grip strength and cardiorespiratory fitness as possible risk factors since there are actionable ways to improve both of these metrics.