Think twisting, bending and extending ... the simple act of lifting and lowering the legs. How often do you think about it? However, your hip flexor muscles can get tight and weak very easily ...

To run your best, you need strength in the muscles of your arms, core, legs, and glutes so you can propel yourself forward.

Most people focus on the major leg muscles like the quads ... Why it rocks: This twist on lunges increases your range of motion and time under tension, boosting the challenge for your inner ...

These muscles help to control your leg movement (hip adduction ... They allow your trunk to twist. Internal oblique muscles. These are located just inside your hip bones.

Those muscles all play a role in the function ... step-up Side-to-side (frontal plane): lateral lunges, side-lying leg raises, lateral shuffles Twisting (transverse plane): seated hip abduction ...