sports performance fitness endurance evaluation heart rate test

analyzing athlete athletics bpm cardiologist cardiology clinic comparison computer diagnostic digital discovery display echocardiogram education endurance equipment ergometer exam exercising experiment expertise exploration fitness frequency healthcare healthy heart heartbeat hospital instrument laboratory lifestyle machine marathon measurement medical medicine men people performance power professional pulsating pulse pulsometer rate real research run runner running science scientific scientist sport sports sportsman strength taking technology test tool treadmill triathlon wellbeing women