energy systems in swimming

In swimming, our body produces energy through three main systems. The ATP-PC system provides quick energy for about 10 seconds, ideal for sprints. The anaerobic system kicks in for 10 seconds to 2 minutes, producing energy without oxygen, but creating lactic acid as a byproduct. The aerobic system uses oxygen to generate energy over longer periods, suitable for endurance events. These systems work together depending on the swim's intensity and duration, supplying the energy needed to power muscular effort efficiently.