Comprehensive fitness involves a mix of strength training for hypertrophy, HIIT for metabolic health, and corrective exercises for postural alignment.
Weight lifting can include any activity that involves making a movement with your body against some type of weight. Its primary purpose is typically to develop strength and power, although weight lifting also burns calories.
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The average heart rate may be used to estimate the calories burned by a person during exercise. A reasonably accurate estimate of calorie expenditure should also consider additional factors such as gender, age and weight.
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