If you lose weight without doing some strength training, you run the risk of breaking down muscle as well as body fat. That is why any diet or weight loss plan must include some kind of muscle-building component to replace the tissue you’re losing. Without exercise and physical activity, you’ll lose 20 to 50% of your muscle mass over the course of your adult life. Losing significant amounts of muscle mass could lead to feeling unusually tired and overwhelmed. Strength training will help you in the following ways:
- Your metabolic rate (the rate at which you burn calories) will go up.
- You will lose weight and gain muscle mass.
- Your body composition will shift, with a higher proportion of muscle to fat.
- You will have more mitochondria, those powerhouse units in the muscle cells where fat and calories are primarily burned. Mitochondria play an integral role in fat loss.