Spring balance knee extension strength

Spring balance knee extension strength improves test-retest reliability in humans (ICC (3,1) 0.94).

“For measurement of knee extension strength, a spring balance (ICC (3,1) 0.94 affected leg) was the most reliable.”

Human trialolder people following hip fracturen = 30

Reliability of simple portable tests of physical performance in older people after hip fracture

Clinical rehabilitation·1 Aug 2005