heart rate zone (Angleško)
Noun
Your heart rate zones reflect percentages of your maximum heart rate. Each heart rate zone gives you different benefits. The "Very Light" zone improves overall health and metabolism, and helps recovery. The "Light" zone improves basic endurance, helps recovery, and increases fat burning. "Moderate" improves aerobic fitness. "Hard" increases maximum performance capacity. And "Very Hard" helps to develop maximum performance and speed.