The back extension is a versatile exercise that can be performed virtually anywhere. It can be used as part of a training program to build strength or a rehabilitation program for injury recovery.

The leg extension, or knee extension, is a type of strength training exercise. It’s an excellent move for strengthening your quadriceps, which are in the front of your upper legs. Leg extensions are ...

Each subject attended a first testing session, to determine the 1 repetition maximum (1-RM) for each exercise. This was followed by two exercise sessions in which standardized trunk extensions were ...