📅 2025-01-08
Exercise effects by heart rate zones! Calculate maximum and target heart rates to maximize fat burning, endurance improvement, and exercise efficiency.
Maximum heart rate is the highest heart rate an individual can achieve. Simple calculation: MHR = 220 - age. Example: Age 30 = 220 - 30 = 190bpm. More accurate method is actual measurement (stress test), but 220-age formula is most widely used in daily life. Use this as basis for setting exercise intensity.
Zone 1 (50-60% MHR): Recovery/warmup zone. Zone 2 (60-70% MHR): Fat-burning zone, sustainable long-term. Zone 3 (70-80% MHR): Aerobic zone, improves cardiorespiratory endurance. Zone 4 (80-90% MHR): Anaerobic threshold zone, high-intensity endurance. Zone 5 (90-100% MHR): Maximum intensity zone, explosive power. Choose zone based on goal.
Fat burning is most efficient in Zone 2 (60-70% MHR). For age 30: MHR 190 × 0.65 = 123bpm target. Sustaining this intensity for 30+ minutes uses body fat as primary energy source. Good activities: brisk walking, light jogging, cycling. Maintain intensity where conversation is possible.
Zone 3-4 (70-85% MHR) improves cardiorespiratory endurance. For age 30: 133-161bpm. Jogging, running, cycling, swimming for 20-40 minutes. Intensity makes conversation difficult, breathing accelerates. Practicing 3-4 times/week significantly improves heart function and endurance.
HIIT using Zone 4-5 (80-100% MHR) is effective in short time. Example: 30-second sprint (90% MHR) + 1-minute walk (60% MHR) × 10 sets. Total 15-20 minutes achieves high calorie burn and metabolic rate improvement. However, injury risk is high, so warmup is essential.
Measurement methods: ① Wrist/neck pulse 15 seconds ×4. ② Smartwatch/heart rate monitor (most accurate). ③ Perceived exertion (conversation ability). Precautions: ① Beginners start with low intensity. ② High blood pressure/heart disease patients consult doctor before exercise. ③ Excessive high-intensity causes injury/overtraining. ④ Stretch before/after exercise.
Heart rate zone training enables efficient exercise matched to goals. Use Zone 2 for fat burning, Zone 3-4 for endurance, Zone 5 for high intensity. Important to adjust intensity to fitness level and practice consistently.