"strenuous physical activities" is a correct and usable phrase in written English.
You could use it to describe activities such as running, weightlifting, or martial arts. For example, "I like to stay fit by engaging in strenuous physical activities like running and weightlifting."
All of the women who were physically active in their leisure time before pregnancy therefore halted or curtailed their strenuous physical activities during pregnancy.
People who engage in strenuous physical activities can also benefit, but only if their coffee contains caffeine, which helps muscles use fatty acids for energy and blunts the effect of adenosine, extending the time before muscles fatigue.
Companies and surgeons began promoting the new implants as the next big step in orthopedics, one that would let patients, particularly middle-age ones, do strenuous physical activities because their mechanics were more natural.
You need to avoid strenuous physical activities.
You need to limit strenuous physical activities such as sports and you may not feel comfortable driving.
In view of this, we preferred to use the hook plate in our subset of patients who were primarily athletic and involved in strenuous physical activities as soldiers.
Strenuous physical activity activates immune reactions.
Strenuous physical activity activates the participant's immune responses; however, few studies exist, observing exercise-induced simultaneous changes in mediators of inflammation.
An active lifestyle involving regular strenuous physical activity has been found to protect against the incidence of LBP among older persons [ 16].
A minor part, 5.9%, reported violence at work often or very often, and 15.9% was physical active with at least once in a week with strenuous physical activity.
"Historical accounts describe him as an active fighter in battle, so he was clearly able to do strenuous physical activity.
