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 ...

This occurs at the hip and shoulder, returning the arms and legs back to their original position from a jumping jack movement or when swimming breaststroke. Key fact Flexion and extension are a ...

Extension – straightening a joint ... the hip in golf while performing a drive shot. Plantar flexion – pointing the toes – this movement only occurs at the ankle, for example, pointing ...