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It is a common belief that building muscle mass helps burn more calories and aids weight loss. While muscle is more metabolically active than fat, the impact of muscle on calorie burning is negligible when the muscle is at rest. However, building muscle through resistance training can help burn more calories during exercise. This is because bigger muscles tend to have more calorie-hungry fast-twitch fibres, which are specialized for lifting weights. While flexing muscles can help build strength, it is not the most effective way to build muscle mass and burn calories. Instead, combining isometrics with strength training exercises like weight lifting can help build muscle, endurance, and flexibility.
| Characteristics | Values |
|---|---|
| Does squeezing muscles burn calories? | Yes, building muscle by strength training increases your calorie burn to help you lose weight. |
| Muscle vs fat | Muscle is more metabolically active than fat. |
| Muscle at rest | Muscle at rest does not burn many calories. |
| Muscle and fat | Muscle doesn't burn fat directly. |
| Muscle mass | Having more muscle mass means you burn more calories at the same body weight than if you had less muscle mass. |
| Muscle tissue | Muscle tissue contributes approximately 20% of your total daily calories burned. |
| Muscle and fat tissue | Muscle tissue burns 20 times more calories than fat tissue. |
| Muscle and weight loss | Growing muscles through resistance training can help people burn more calories when they exercise. |
| Muscle and cardio | Cardio is the best way to burn calories. |
| Muscle and load | Load is the most important factor in increasing muscle strength. |
| Muscle and endurance | Building muscle through endurance exercises like weight lifting can help build muscle, endurance, and flexibility. |
| Muscle and mental health | Muscle flexing can help treat headaches, high blood pressure, digestive problems, and improve mental health. |
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What You'll Learn
Squeezing muscles can build strength
Squeezing or flexing muscles can build strength, but it is not the most effective way to do so. When you squeeze a muscle, it contracts concentrically, creating tension as your muscle fibres shorten. For example, when you flex your bicep, your hand curls towards your shoulder. Then, as you hold the flexed position, your muscle contracts isometrically, without movement.
There is scientific evidence that these concentric and isometric contractions are good for building strength and size. One study found that participants who performed 12 weeks of isometric bicep flexing were able to significantly increase muscle strength and size in their arms. Another study found that participants improved isometric force production in the biceps by 12.5% and the triceps by 14% through isometric contractions. However, it is important to note that the strength gains from flexing do not fully translate to functional exercises that involve a full range of motion.
Isometrics, or exercises that strengthen muscles by keeping them still in the face of resistance, include planks and wall sits. These exercises are low-intensity and do not involve moving any joints, making them beneficial for those recovering from injuries. By combining isometrics with strength training exercises like weightlifting, you can build muscle, endurance, and flexibility while learning how to relax.
While flexing may not be the most efficient way to build strength, it does offer some unique benefits. For example, it can help you learn the difference between muscle tension and relaxation, which can be useful for managing anxiety and stress. Additionally, muscle flexing can improve blood circulation, which can help treat headaches, high blood pressure, and digestive problems.
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Muscle is more metabolically active than fat
Muscle is indeed more metabolically active than fat. When trying to lose weight, people often cut down on calories and start exercising. While this helps burn body fat, it can also lead to a loss of muscle tissue. Losing muscle mass decreases your metabolic rate, which means you'll need to consume even fewer calories to continue losing weight.
To prevent this, it's important to incorporate strength training into your fitness routine. Strength training helps preserve metabolically active muscle mass while you lose body fat. It increases muscle strength and stamina, making your workouts more productive. Additionally, strength training can help strengthen your bones and may even promote the growth of new bone tissue.
Isometric exercises, such as planks and wall sits, are a great way to build strength without putting excessive load on your muscles. They involve keeping your muscles still while they resist the force of gravity, which also helps improve balance. Combining isometrics with strength training exercises like weightlifting can effectively build muscle, endurance, and flexibility.
While flexing your muscles may not be the most efficient way to build muscle, it does offer some unique benefits. Every time you flex a muscle, its fibres temporarily contract, creating tension. This type of muscle contraction is called a concentric contraction, and it is followed by an isometric contraction as you hold the flexed muscle in place. Studies have shown that performing isometric contractions by flexing your muscles can lead to significant increases in both muscle strength and size.
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Flexing muscles can improve mental health
Flexing muscles is not just about looking good or building strength; it can also improve your mental health. Progressive muscle relaxation (PMR) is a technique that helps treat anxiety, insomnia, and migraines. PMR is based on the idea that mental calmness results from physical relaxation. As a deep relaxation technique, PMR helps manage anxious feelings and makes you more in tune with your body.
If you have anxiety, you may be so tense that you no longer remember how being relaxed feels. Muscle flexing can help you learn how to relax by making you aware of the difference between tension and relaxation. By tensing and releasing your muscles during muscle relaxation, you will learn to recognize what being tense versus being relaxed feels like. This awareness of bodily sensations can help improve mental health, digestion, control stress, and anxiety, and reduce symptoms of some types of chronic pain.
Isometrics, or isometric exercises, are a type of low-intensity muscle flexing that can be beneficial if you are recovering from an injury. They don't involve moving any joints, but they allow for strength training and help improve balance. Combining isometrics with strength training exercises like weight lifting can help build muscle, endurance, and flexibility while learning how to relax.
Overall, flexing muscles through techniques like PMR can be a valuable tool for improving mental health and managing stress, anxiety, insomnia, and physical pain.
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Isometrics can be beneficial for strength training
While flexing your muscles is not the most effective way to build strength, isometrics, or isometric exercises, can be beneficial for strength training. Isometrics are exercises in which your muscles are engaged but do not change length. This is different from exercises like bicep curls, where the bicep muscle shortens and lengthens as you move your hand.
Isometrics include exercises like planks and wall sits, which strengthen your muscles by keeping them still in the face of resistance. The resistance can come from your body weight, gravity, holding an object, or weighted exercise equipment. For example, in a study where participants performed five sets of ten reps of a four-second isometric bicep flex, they were able to increase muscle strength and size in their biceps and triceps.
Isometrics are ideal for people with limited workout space, those recovering from an injury, or anyone needing a change in their fitness routine. They can be added to rehabilitation programs as they add tension to the muscles with limited joint and muscle movement, allowing for the rebuilding of strength and endurance in injured areas. Isometrics can also be beneficial for improving balance and boosting mental health.
However, it is important to note that isometrics should only serve as a complement to a more dynamic exercise regimen unless advised otherwise by a physical trainer. This is because isometrics do not improve flexibility and are not as effective at building muscle size compared to eccentric and concentric training. To increase muscle hypertrophy, isometrics should be performed at 70-75% of maximum voluntary contraction (MVC) with sustained contractions of 3-30 seconds per repetition.
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Muscle flexing can improve blood circulation
Squeezing muscles, or muscle flexing, does not burn a significant number of calories. However, it has several other benefits for both physical and mental health. One of the key advantages of muscle flexing is its positive impact on blood circulation.
When you flex a muscle, its fibres contract and shorten, resulting in muscle contraction. For example, when you flex your bicep, your muscles contract concentrically, creating tension as your hand moves towards your shoulder. This type of muscle contraction increases blood flow to the contracting muscles, enhancing oxygen delivery to these areas.
Improved blood circulation has several benefits for the body. Firstly, it can help relieve headaches by improving blood flow and reducing tension in the head and neck. Additionally, boosted blood circulation can assist in managing high blood pressure. This is because the increased blood flow during muscle flexing may help maintain an "acceptable" level of arterial blood pressure, as suggested by some integrative physiology theories.
Furthermore, muscle flexing can aid in digestion. This is due to the improved blood flow and oxygen delivery to the digestive system, which can enhance the efficiency of digestive processes.
It is important to note that people with cardiovascular or heart conditions should be cautious when practising muscle flexing or PMR (Progressive Muscle Relaxation) techniques. Tensing chest muscles can slow down blood flow back to the heart, which may be dangerous for individuals with these conditions. Instead, they can try isometric exercises like planks and wall sits, which strengthen muscles without putting extra strain on the heart.
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Frequently asked questions
Squeezing muscles, or muscle flexing, is not the most effective way to burn calories. While it does build muscle, it is not a substitute for strength training or cardio workouts. However, it can be a good supplementary exercise to improve strength and mental health.
Cardio exercises are the most effective way to burn calories. High-intensity strength training is also a good option, as it increases the number of calories burned during and after a workout.
Muscle is more metabolically active than fat, meaning it burns more calories. The more muscle mass a person has, the more calories they burn, even at rest. However, the impact of muscle growth on calorie burning is not as significant as some believe.
Resistance training and strength training exercises, such as weight lifting, are effective for building muscle and burning calories. Isometrics, such as planks and wall sits, are also beneficial for building strength and improving balance.
