Use HIIT workouts for time-efficient fat burning

High-Intensity Interval Training alternates short bursts of all-out effort with brief recovery periods. A typical session lasts 15-30 minutes and can be done with bodyweight exercises alone -- no gym required.

Why It Works

HIIT elevates your heart rate rapidly and keeps your metabolism elevated after the workout through excess post-exercise oxygen consumption (EPOC). Research published in the British Journal of Sports Medicine (2019) found HIIT reduced total body fat comparably to moderate-intensity continuous training, but in significantly less time per session.

Sample Beginner Routine

1. 30 seconds jumping jacks, 30 seconds rest
2. 30 seconds bodyweight squats, 30 seconds rest
3. 30 seconds high knees, 30 seconds rest
4. 30 seconds push-ups (modified if needed), 30 seconds rest
5. Repeat 3-4 rounds

Tips

• Start with 2-3 sessions per week with rest days between to allow recovery
• Warm up for 5 minutes before starting intervals
• HIIT is demanding on joints -- those with knee or back issues should start with low-impact variations like cycling intervals
• Progress by shortening rest periods or increasing work intervals, not by adding more sessions