Fitness Mastery: Hypertrophy, HIIT & Running Optimization

Comprehensive fitness involves a mix of strength training for hypertrophy, HIIT for metabolic health, and corrective exercises for postural alignment.

Low angle view of a young man swimming underwater in a swimming pool

The Muscles Used in a Front Crawl

Front crawl – also called the freestyle or simply the free – is the fastest of the four competition strokes. Freestyle swimmers are known for their V-shaped torso – broad shoulders and narrow hips – physical proof that this stroke relies on extreme upper-body strength.

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Do You Really Burn Fat Faster at a Lower Heart Rate?

It sounds counterintuitive, but just because you're working out harder, increasing your heart rate and burning calories doesn't mean you're burning fat. Your body's ideal fat-burning zone is only 60 to 70 percent of your maximum heart rate.

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