Bicycle crunch. Main muscles worked: Rectus Abdominis, Obliques, Iliopsoas, Tensor Fasciae Latae, Pectineus, Sartorius, Adductor Longus, and Adductor Brevis. In one study, found to be the most effective ab exercise! See website for details.

Bicycle crunch. Main muscles worked: Rectus Abdominis, Obliques, Iliopsoas, Tensor Fasciae Latae, Pectineus, Sartorius, Adductor Longus, and Adductor Brevis. In one study, found to be the most effective ab exercise! See website for details.

Original article and pictures take https://weighttraining.guide site