Investigate Limb Position and Grip Strength

Brief

How does the position of your lower arm effect your grip strength? Is there a difference or no difference we are going to find out.

Prone – Palms face backward / down

Supine – Palms face forward / up

Natural – Palms face towards body

Important Do not attempt this exercise if you have arthritis, carpal tunnel syndrome, or any ailment that might be exacerbated by using the muscles of your arm and hand.

Objectives

In this experiment, you will

• Measure and compare grip strength of your right and left hands in three different lower arm positions.

Required items

• Go Direct Hand Dynamometer
• iPad, iPhone, Windows Computer, mac Computer, Chromebook, Android device with the FREE Graphical Analysis 4 Installed

Method

On the Go Direct Hand Dynamometer, press the power button once. The LED will blink red. Launch the Graphical Analysis App. Click Sensor Data Collection.  Now select GDX-HD from the list (if you have more than one device, select the serial number corresponding to that on the case). The LED on the Hand Dyanmometer will now blink Green. Click DONE.

Select ‘Mode’ from the bottom left of the window. Change the End Collection to 10s. You are now ready to Collect your first data set. Hold the Go Direct Hand Dynamometer in the first position. Press Collect then tighten your grip for 10 seconds.

Repeat the experiment for each of the 6 hand/position combinations

Analysis

To determine the Maximum / Mean. Click on the ‘graph tools’ icon, bottom left, and choose ‘view statistics’. Record the values for Max and Mean.

Data Table

Sensors and Equipment Featured