Handgrip Strength Test and Relative Strength
Students measure their grip strength with a hand dynamometer in both hands, calculate relative strength by dividing by body weight, and compare it with reference values. While waiting their turn, they complete a grip station to learn what affects the score.
How to play
- Explain the protocol: standing, arm straight at the side without touching the body, squeeze the dynamometer as hard as possible for 3 seconds. Adjust the grip to hand size (3 min).
- Groups of 5 at five cone stations: each student gets two attempts per hand, alternating, with 1 minute between attempts on the same hand. A partner records the best (8 min).
- Students waiting their turn practice grips: a 10-second hang from the wall bars, finger pinches, and wringing a rolled towel.
- Calculation (5 min): relative strength = best score in kg / body weight in kg. Compare dominant and nondominant hand and the percent difference.
- Debrief (4 min): which sports or daily tasks depend on grip? Is more than a 10 percent difference between hands normal?
Rules
- Use the dynamometer with the wrist strap on so it cannot drop.
- No swinging the arm or bracing it against the body during an attempt.
- Body weight data is private and goes only on the personal card.
Variations
Easier
Measure only the dominant hand and discuss the result without calculations.
Standard
Two attempts per hand, a relative strength calculation, and a comparison between hands.
Harder
Add an endurance test: the percent of force held after squeezing for 30 seconds.
Adaptations
- Limited mobility: test seated with the elbow at 90 degrees, which is also a valid protocol.
- Visual impairment: the partner reads the dynamometer value out loud.
- Low hand strength: focus only on personal improvement between the first and second attempts.
Learning goals
- Apply a standardized protocol to measure grip strength.
- Calculate relative strength and the difference between hands.
- Connect grip strength to health and athletic performance.
Equipment for a class of 25
- hand dynamometers: 5
- recording cards: 25
- cones: 5
Teacher tip
If you only have one or two dynamometers, set up more grip stations and rotate groups. Reset the device between attempts and check that the grip is properly adjusted.
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