What movement is described by flexion?

Flexion is a movement that involves decreasing the angle between two articulating bones. This typically occurs at joints, such as when you bend your elbow or knee. For example, lifting your forearm towards your shoulder is a clear instance of flexion at the elbow joint, where the angle between the upper arm and forearm is reduced.

Understanding flexion is crucial for a personal trainer, as it forms the basis for many exercises and is fundamental to human movement. By mastering the concept of flexion, trainers can better guide clients through workouts that involve bending movements, ensuring proper form and technique to prevent injury and promote effective strength building.