What is the meaning of shuttle run?

A shuttle run is a physical fitness test or training exercise that involves running back and forth between two markers placed at a set distance apart. Participants sprint to one marker, touch it, and return to the starting point, repeating the process multiple times. It assesses speed, agility, and endurance, and is often used in sports training and fitness assessments. The shuttle run can also be a fun, competitive activity in various sports and physical education settings.