HIIT (High-Intensity Interval Training)

Definition

HIIT, or High-Intensity Interval Training, is a form of exercise that involves short bursts of intense activity followed by periods of rest or low-intensity activity.

Scientific / Technical Definition

High-Intensity Interval Training (HIIT) is characterized by repeated bouts of high-intensity effort followed by varied recovery times. The intense effort typically involves achieving 80-95% of maximum heart rate, lasting anywhere from seconds to minutes, aimed at improving cardiovascular fitness, metabolic rate, and muscle performance.

Benefits

• Improves cardiovascular health
• Enhances metabolic rate
• Aids in weight loss
• Increases aerobic and anaerobic capacities
• Efficient workout in shorter time span

Examples

• Alternating between sprinting and walking
• Cycling with intervals of fast pedaling followed by slow pedaling
• Jumping jacks interspersed with rest periods

Additional Information

• Known issues: High-intensity workouts may increase the risk of injury if not performed with proper form or without prior conditioning.

Related Terms

• Cardio
• Aerobic Exercise
• Anaerobic Exercise
• Interval Training

References

• Effects of High-Intensity Interval Training
• The Science Behind HIIT