The reason that loosing muscle is so detrimental to your fitness is because muscle is the component of your body that burns the majority of the calories you consume each day. Therefore, when you lose muscle your body requires less calories to function and consequently those extra calories you consume are stored as fat around your waist ,hips, and other places.
Your body constantly burn calories, even when we’re doing nothing. This resting metabolic rate is much higher in people with more muscle. Every pound of muscle uses about 6 calories a day just to sustain itself, while each pound of fat burns only 2 calories daily. That small difference can add up over time. In addition, after a bout of resistance training, muscles are activated all over your body, increasing your average daily metabolic rate.
Fortunately strength training can mitigate and even reverse the loss of muscle at any age. Thus, increasing the amount of calories you need to function. That’s why you hear some people say that after they have been strength training for awhile their appetites increase. This is a sign that they are starting to build muscle.
Increasing your metabolism isn’t the only benefit of strength training. It also, helps you:
- Develop strong bones. By stressing your bones, strength training increases bone density and reduces the risk of osteoporosis.
- Control your weight. As you gain muscle, your body burns more calories more efficiently which can result in weight loss. The more toned your muscles, the easier it is to control your weight.
- Reduce your risk of injury. Building muscle protects your joints from injury. It also helps maintain flexibility and balance which is crucial to remaining independent as you age.
- Boost your stamina. Building muscle helps to increase your energy level.
- Improve your sense of well-being. Strength training can boost your self-confidence, improve your body image, and reduce the risk of depression.
- Sleep better. People who strength train on a regular basis are less likely to have insomnia.
- Manage chronic conditions. Strength training can reduce the signs and symptoms of many chronic conditions, including arthritis, back pain, depression, diabetes, obesity, and osteoporosis.