flexors

FINALLY FEEL YOUR ABS Most people never fully contract their rectus abdominis. Instead, they're using their hip flexors during ab flexion and crunches. If you can do 30 crunches, your form is off and your abs probably aren't working very hard. Those hip flexors are taking over and doing most of...

One of the most analyzed muscles in the fitness universe are those three muscles on your upper thigh, the hip flexors. Are they weak, or are they tight? There is much confusion about them, and a lot of blame gets laid on them regarding performance in and out of the gym. With a Physical...