Strength training doesn't burn a whole lot of calories directly in the way that cardio does.
Instead, the main benefits of ST are indirect, boosting your metabolism (burning calories throughout the day, not just when you are working out), and also that it means that more of your weight loss comes from fat alone, rather than a combination of fat and muscle.
Don't worry about the calories - they won't be huge anyway. The benefits come in other ways.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.
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