Which type of stretching involves holding a stretch for a specified time?

Static stretching is characterized by holding a muscle in a lengthened position for a designated period, typically ranging from 15 to 60 seconds. This type of stretching promotes flexibility and helps lengthen the muscle fibers, allowing for an improved range of motion. It's usually performed at the end of a workout routine when the muscles are warm, maximizing its effectiveness and reducing the risk of injury.

In contrast, dynamic stretching involves controlled movements that gradually increase the range of motion and is often used to prepare muscles for movement rather than to lengthen them. Ballistic stretching incorporates bouncing movements to push the muscle beyond its normal range of motion and can sometimes lead to injury. Plyometric stretching includes explosive movements to enhance power and is not focused on holding a position for any duration.

The key factor that makes static stretching the correct answer is the emphasis on maintaining a stretch for a set length of time, distinguishing it from other forms of stretching that are more about movement or dynamic action.