Researchers at Mayo Clinic evaluated grip and knee strength, double- and single-leg balance, and back-and-forth walking of 40 participants, half aged 50 to 65 and the other half over age 65.

Single leg drop jump performance metrics ... but less peak knee flexion of the involved compared with the uninvolved limb (tables 2 and 3). Knee flexion moments. Knee flexion moments were lower in the ...