Vernier Software and Technology
Vernier Software & Technology

Grip Strength

Figure from experiment 9 from STEM 2 with Vernier and LEGO® MINDSTORMS® NXT


Grip strength is the force applied by your hand. It is an important part of daily life from eating to playing baseball. There are three main types of grip strength depending on the way you use your hands. In the crush grip (the most common), your hand wraps around an object so that your palm and all your fingers rest against the object. This grip is used for breaking objects with pressure. In the pinch grip, you grasp an object with only your thumb and one finger. Pointer or middle fingers usually have significantly more strength than ring and pinkie fingers. In the supportive grip, you are measuring your ability to carry an object for a long period of time, such as a sack of groceries. This grip is normally used as an indicator of how much your hand fatigues or tires over time. In this activity, you will use a Gas Pressure Sensor and a 2-liter bottle to compare the grip strength of your right and left hands. Pressure can be used as a relative strength indicator, since pressure is measured in kiloPascals (thousands of Newtons per square meter) and everyone in your class will be squeezing bottles with the same area. After you have analyzed your data, you will compare your grip strength with that of your classmates.


In this experiment, you will

  • Use a Pressure Sensor and NXT to measure your grip strength.
  • See which of your hands has the greater grip strength.
  • Learn what happens to your grip strength as time goes by.
  • Compare your grip strength with your classmates.

Sensors and Equipment

This project/activity features the following Vernier sensors and equipment.

Additional Requirements

You will also need NXT Sensor Adapter and a LEGO MINDSTORMS NXT robotics system.

STEM 2 with Vernier and LEGO® MINDSTORMS® NXT

See other experiments from the lab book.

2First-Class Levers
3Audio Assistant
6String Tension Tester
7Gas Pressure
8Yeast in Action
9Grip Strength
10Cartesian Diver
12Lemon Battery
13Battery Tester
14Solar Cells
15Solar Tracker
16Mapping a Magnetic Field
18Migrating Robot
19Magnet Finder
20Mine Sweeper

Project/activity 9 from STEM 2 with Vernier and LEGO® MINDSTORMS® NXT Lab Book

<em>STEM 2 with Vernier and LEGO<sup>®</sup> MINDSTORMS<sup>®</sup> NXT</em> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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