What is the term used to describe a decrease in the angle between two body segments?

The term that describes a decrease in the angle between two body segments is flexion. When flexion occurs, one body part moves closer to another, leading to a reduction in the angle at the joint between them. This movement is common in various exercises and daily activities, such as bending the elbow or knee.

For instance, when performing a bicep curl, as the forearm is lifted towards the shoulder, the angle at the elbow decreases, exemplifying flexion. This is a fundamental movement pattern that is vital in many athletic and functional movements, making it an essential concept in bodybuilding and fitness. Understanding flexion allows trainers and athletes to optimize performance and target specific muscle groups effectively.