The exercise intensity that promotes the greatest total grams of fat metabolized is A) 20% of VO₂ max. B) 50% of VO₂ max. C) 80% of VO₂ max. D) 100% of VO₂ max.

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Quizplus · Accepted Answer

Research has shown that the most efficient intensity for fat metabolism is around 50% of VO2max, which corresponds to a moderate intensity exercise. At this intensity, the body can use both fat and carbohydrates as fuel, but a higher percentage of fat is used compared to carbohydrate. However, exercising at higher intensities, such as 80% or 100% of VO2max, although compelling for weight loss, will rely more on carbohydrate metabolism rather than fat metabolism. Similarly, exercising at a lower intensity, such as 20% of VO2max, may not be enough to burn a significant amount of fat.

The Exercise Intensity That Promotes the Greatest Total Grams of Fat