Q.List the names of any four muscles that relax during cooling down.

Limbering down — also called cooling down or warming down — is the deliberate, gradual process of bringing the body back from an exertional state to a resting state after training or competition, rather than stopping abruptly. Depending on how intense the preceding exercise was, this can mean a slow jog or walk, static stretching, or in some settings a cooling/ice bath or cryotherapy.

The textbook describes several named static stretches used for this purpose — for the hamstrings, chest, glutes, quadriceps, and triceps/shoulders — each targeting a muscle group that was heavily worked during the session. It lists six concrete benefits: regulating heart rate back down gradually (stopping suddenly can cause dizziness), controlling and normalising body temperature, preventing injuries such as muscle tears, providing stress relief and relaxation (the brain releases dopamine and serotonin as the body slows down), restoring the body's normal hormonal and respiratory state, and reducing the …