From: The relationship between smartphone usage duration (using smartphone’s ability to monitor screen time) with hand-grip and pinch-grip strength among young people: an observational study
Variable
Smartphone usage duration (hours)
With weight and BMI as confounding variables
r
p
Hand-grip strength (kg)
-0.22
0.03
Pinch-grip strength (kg)
-0.28
0.004
-0.27
0.008