High-Intensity Interval Training

Definition

High-Intensity Interval Training (HIIT) is a form of exercise that involves short bursts of intense activity followed by brief periods of rest or low-intensity exercise. It's designed to improve fitness and burn calories in a short amount of time.

Scientific / Technical Definition

High-Intensity Interval Training (HIIT) consists of repeated high-intensity exercise bouts ranging from 5 seconds to 8 minutes, interspersed with recovery periods of varying lengths. Typically, the work intervals involve near-maximal effort, and research has shown that HIIT can improve cardiovascular fitness, endurance, and metabolic rate.

Benefits

• Enhances cardiovascular health
• Improves metabolic rate
• Aids in weight loss by burning more calories in a shorter time
• Increases muscle tone and strength
• Reduces insulin resistance

Examples

• Sprint interval cycling
• Tabata training
• Circuit training with intense intervals
• Burpees or jump squats followed by walking

Additional Information

• sideEffects: Potential side effects may include muscle soreness and injury if not performed with proper form. It's important to start gradually and consult with a fitness professional if you're new to HIIT.

Related Terms

• Aerobic Exercise
• Cardio Training
• Metabolic Rate
• Strength Training

References

• High-Intensity Interval Training and Cardiovascular Health
• The Effects of High-Intensity Intermittent Exercise Training on Fat Loss and Fasting Insulin Levels of Young Women