Marius just completed his swimming workout. which of these activities would best target a key muscle in his cool down routine? hurdler's stretch calf stretch shoulder stretch abdominal stretch

Shoulder stretch would would best target a key muscle in Marius cool down routine after his swimming workout. Repetitive overhead arm motion can lead to inflammatory condition on the shoulder. That's why it is very important to do stretching. The purpose of stretching is to protect the swimmer’s body, especially the neck, shoulders and lower back.

i don't think so because different teachers have different materials. tehy teach differently, unless you know for sure your teacher is the exact same as others. i would just contact ur teacher