The answer is yes because they need to get into female you know tmi
<span>By using FITT principles, my cousin’s goal for his cardiovascular system and fitness levels will be achieve for an improvement will be observe. Running three times per week and gradually increasing to five times a week for cardio-vascular fitness is very effective after three months. Moreover, these changes will be monitor with heart rate monitor and a weighing scale.</span>
The answer is D pulse oximeter
hope this helps
Both of Michael Phelps and Caleb Dressel are professional swimmers ( freestyle swimming) so D