Joint Movement Terminology

Personal trainers must know proper joint movement terminology, especially when talking with other health care professional because the terms accurately describe the direction of movement at specific joints. For example, a client with a herniated disc must avoid forward hip flexion as well as posterior pelvic tilt. 

This page is included in Muscles 101 since muscles and joint actions go hand in hand.

There are 3 axes of rotation in the body, each is associated with a different plane of motion. These planes of motion are a part of basic fitness theory for personal trainers or first year anatomy. Axis of rotation are a part of mechanics, or more specifically, biomechanics. These concepts can often be quite difficult for new personal trainers. Depending on which exam and certification you are taking this concept may not be super crucial to fully comprehend. What is important to know are the specific joint movements and could you demonstrate each if necessary.

Sagittal Plane Movement
sagittal axis
Movements in the sagittal plane correlate with the medio-lateral axis. Movements include:

  • Flexion & Extension
  • Hyperextension
  • Anterior & Posterior pelvic tilt
  • Plantar flexion & Dorsi flexion

  • walking
    Last modified: Monday, 25 February 2019, 10:35 AM