The IDO Isometer is supplied with detailed user instructions but here is a summary of the usage procedure.

Preparation

• Insert 2 x AAA (1½ volt) batteries
• Clip foot and arm straps to the rings on the device
• Press On/Off button once to light blue led

Patient positioning

• Ask patient to stand (if possible) with arm held at 90° of abduction in the scapular plane
• Place wrist in pronation, the palm facing downwards
• Loop arm strap over wrist with the arm at maximum span
• Hold foot strap firmly to the floor with your foot

Measurement

• Instruct patient to pull up with all his/her strength with the elbow kept straight when the device beeps once and to continue pulling until it double beeps
• Press the Start button to start data collection
• Double beep signals that data collection is complete
• The measurement is displayed and automatically saved to memory
• Press Kg/Lb button to see measurement in alternative unit

Memory function

• Built-in memory saves last 10 measurements
• Hold down Memory button to enter memory mode
• Memory store numbers (01 - 10) and stored measurements display in turn
• To select previous measurement press Memory button once
• Press Kg/Lb button to see measurement in alternative unit
• Hold down Start button for three seconds to erase all saved measurements

Turning off

• Press On/Off button
• Note: Auto-Off function automatically turns off device after one minute of inactivity