What are movement producing muscles used during this fitness test of pacer?

The PACER (Progressive Aerobic Cardiovascular Endurance Run) test primarily engages several key muscle groups that facilitate movement. The major muscles involved include the quadriceps, hamstrings, calves, glutes, and hip flexors, which work together to propel the body forward during running. Additionally, the core muscles play a crucial role in stabilizing the body and maintaining posture throughout the test. Overall, the combination of these muscles supports endurance and efficient movement during the PACER test.