Two terms that come up often when it comes to movement are flexion and extension. Understanding concepts like flexion versus extension can help you better understand the purpose of your workouts ...

Flex to the finish line with this 20-minute core workout, the last part of the Women’s Health+ Ultimate Abs Challenge. Today, ...

Pointing your toes downward engages the calf muscles and Achilles tendon, playing a key role in walking, running, and jumping ...

This week-long workout plan alternates between core-focused strength training and cardio days to help you get stronger abs, ...

There are the six-pack muscles (the rectus abdominis) trained with spinal flexion, the deep core muscles (the transversus abdominis) which will fire up when you brace, and—if you really forge a ...

UNDER the above heading in your issue of January 18, 1872, Dr. Elliot Coues describes the peculiar movements made by the bones of the wing of the bird in flexion and extension. It may interest ...

Hinge joints allow flexion and extension only. Flexion – bending a joint. This occurs when the angle of a joint decreases. For example, the elbow flexes when performing a biceps curl.