

Step 1
Choose a suitable chair.
The height of the chair should be approx. 43cm.
Follow Ji Jin Hee in discovering your strength.
How to test your muscle strength?
Choose a suitable chair.
The height of the chair should be approx. 43cm.
Use a timer to time yourself doing the Stand4Strength challenge.
Sit-to-stand on both legs 5 times with arms folded as fast as you can.
For your own safety
*Muscle Age is an indication of the strength and performance of the muscles in the lower limbs, and is calculated based on the 5-times sit-to-stand test which matches test time with specific biological age groups.Results are based on Caucasian age norms.
Bohannon R et al. Isokinetics and Exercise Science 15 (2007) 77–8
MAL.2022.33609.ENS.1
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