Compound movements like squats, lunges and push-ups work multiple muscles and joints at the same time, and can be modified to make your workout more challenging.

The technique uses angular-weighted compounding of local angular strains estimated ... into strain tensor components along the axial (direction of compression) and lateral directions. The mechanical ...

I did 100 lunges daily for 30 days—no other changes. Here’s what it did to my body, mindset, and fitness routine.