Rachel Sanders’ How HIIT Workouts Improve Metabolism and Burn Fat

Expert in HIIT (High-Intensity Interval Training), fitness instructor Rachel Sanders has set her goal in guiding individuals to maximise their fat-burning capacity using HIIT exercises.

Short bursts of intense activity followed by intervals of rest characterise HIIT, a time-efficient and effective method to increase metabolism and burn fat.

Let’s explore Rachel’s HIIT observations.

Why HIIT is Effective for Fat Loss


Excess post-exercise oxygen consumption (EPOC), Rachel says, is the phenomena wherein HIIT exercises raise your heart rate and maintain it even after the activity is finished.

Your body so keeps burning calories at a faster rate for hours after your exercise. HIIT also increases metabolism, muscular, and cardiovascular fitness.

Rachel’s Top HIIT Workouts


Sprint Intervals: Alternate between 30 seconds of all-out sprinting and 1-2 minutes of walking or jogging.

Bodyweight Circuits: Combine exercises like burpees, mountain climbers, and jump squats in a circuit format.

Tabata Training: Perform 20 seconds of high-intensity exercise followed by 10 seconds of rest, repeated for 4 minutes.