Fitness Glossary
- Range of Motion
- The range, measured in degrees of a circle, through which a joint can be flexed and extended. Active range of motion: Voluntarily moving a joint through a controlled range of motion; active movement of a joint. Passive range of motion: Having an external force move a joint through its range of motion.
- Reciprocal Inhibition
- The concept of muscle inhibition caused by a tight agonist, which inhibits its functional antagonist.
- Repetition
- The act of repeating an action/ movement.
- Resting Heart Rate
- A measure of heat beats per minute when the body is completely at rest, such as in the morning right out of bed.
- Rotation
- Exercises or trunk movements performed in the transverse plane, around a longitudinal axis, to the left or right.