Athena Vale
Running is a great form of cardio and an excellent way to burn fat and lose weight. However, its role in burning muscle is less clear-cut. While running itself does not burn muscle, the body's fuel source becomes critical in preventing muscle loss. If the body's fat percentage is too low, it will start burning muscles for energy. Therefore, it is essential to maintain a balanced diet with adequate calories and protein to repair and rebuild muscles after a run. Additionally, combining running with strength training can help improve muscle strength and overall running performance. High-intensity interval training (HIIT) and sprinting have been shown to build lower body muscle, while long-distance running may cause muscle damage and hinder muscle growth.
| Characteristics | Values |
|---|---|
| Running builds muscle | High-intensity, short-duration running builds leg muscles |
| Long-distance running can cause muscle damage and hinder muscle growth | |
| Running can build lower body muscles | |
| Running is an excellent form of cardio | |
| Running can burn fat and lose weight | |
| Running burns muscle | Running burns muscle when the body fat percentage is too low |
| Running for long durations can cause muscle loss | |
| Running on an empty stomach can lead to muscle loss | |
| Running without strength training can lead to muscle loss | |
| Running without proper nutrition can lead to muscle loss |
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What You'll Learn
Running long distances can burn muscle
Running long distances can increase muscle protein breakdown (MPB) and hinder muscle growth. High-intensity, short-duration running, on the other hand, can build muscle. This is because muscle building occurs when muscle protein synthesis (MPS) exceeds MPB.
Studies have shown that long-distance running can cause significant muscle damage, which can remain elevated for days after the run. This damage is caused by the eccentric contractions that occur during running, which are more prevalent than in other sports such as cycling.
However, the effect of long-distance running on muscle burning is dependent on individual factors, such as the runner's body composition and their diet. For example, if a runner is not consuming enough calories, their body may start to break down muscle for energy. Therefore, it is important for long-distance runners to ensure they are properly fuelling their bodies with adequate carbohydrates and calories.
Additionally, incorporating strength training and core exercises into a running routine can help to build and maintain muscle mass. This is because strength training induces neuromuscular adaptations, such as increased neural drive to the muscles, which can improve performance.
Overall, while long-distance running may not directly burn muscle, it can cause muscle damage and increase MPB. To mitigate these effects, it is important for runners to fuel their bodies adequately, incorporate strength training, and allow for rest and recovery between runs.
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Running sprints can build muscle
Running sprints can effectively build muscle and offer a range of health benefits. While long-distance running can hinder muscle growth, sprinting is a high-intensity workout that can build muscle mass and strength.
Sprinting is an anaerobic exercise that involves quick bursts of speed at maximum intensity. It gets the heart pumping and provides ample recovery periods within each session. This type of training increases the heart's strength and functionality while building muscle mass.
Sprinting causes micro-tears in the muscles and increases muscle protein synthesis, leading to muscle hypertrophy. It stimulates muscle growth in the legs, including the glutes, hamstrings, quadriceps, and calves. The high-intensity nature of sprinting also increases the amount of fast-twitch muscle fibres in the legs, which has a direct correlation with increased muscle mass and strength.
Additionally, sprinting is a full-body workout that engages the core and upper body muscles. The rapid pace requires balance, which activates the chest and back muscles to prevent over-swinging of the arms and maintain stability. As a result, sprinting tones the upper body and improves overall body strength.
Sprint interval training (SIT) is a highly effective form of exercise that can be performed in a short duration with significant results. It improves physical fitness, strength, and muscle growth, making it an efficient way to build muscle and enhance overall health.
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Running uses more muscle than cycling
Running and cycling are two of the most popular cardiovascular sports, and both provide different benefits depending on an individual's fitness goals. While both activities are good calorie burners, running burns more calories compared to cycling. For example, a 160-pound person cycling for an hour at a 10 mph pace burns 292 calories, whereas running at 5 mph for the same duration and weight burns 606 calories.
Running uses more muscle groups and is physically more demanding than cycling. While both activities involve the lower limbs, running involves more upper body musculature recruitment due to arm locomotion. The primary muscles used in running include the hamstrings, quadriceps, glutes, iliopsoas, and calves. High-intensity, short-duration running workouts like HIIT can help build lower body muscle, especially in the quadriceps and hamstrings.
On the other hand, cycling is a concentric dominant sport, whereas running has more eccentric contractions, which cause more significant muscle damage. Cycling primarily uses the quadriceps and hamstrings in the upper legs and the soleus and gastrocnemius in the calves. Cycling is a low-impact sport that helps build endurance and stamina, making it a good option for individuals with injuries or joint problems.
The transition from cycling to running or vice versa can be challenging due to differences in VO2 Max, muscle groups used, muscle fiber recruitment patterns, and rates of neuromuscular fatigue. For example, a person used to cycling long distances may find that their muscles get tired quickly when they start running, as the impact from running requires time to "toughen" the joints.
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Running is a great way to burn fat
Running is an excellent form of cardio, making it a great way to burn fat and lose weight. However, its role in burning muscle is less clear-cut. While running is not generally considered a muscle-burning activity, the way your body uses fuel and your level of fitness can determine whether you burn muscle during long runs.
High-intensity, short-duration running workouts like HIIT can help build lower body muscle, especially in the quadriceps and hamstrings. In one study, participants who completed a 10-week HIIT programme showed an 11% increase in muscle fibre area in their quadriceps compared to a control group. Sprinting causes small microtears and increases muscle protein synthesis, leading to muscle hypertrophy.
On the other hand, long-distance running can increase muscle protein breakdown (MPB) and hinder muscle growth. Studies have shown that long-distance running can cause significant increases in markers of muscle damage, which remain elevated even days after the run.
To prevent muscle loss during long-distance running, it is important to fuel your body adequately with a balanced diet that includes protein, carbohydrates, and healthy fats. Creating a slight calorie deficit can help with weight loss, but dipping too far into that deficit can lead to muscle loss. By including strength training in your routine, even just twice a week, you can improve muscle strength and tone, enhancing your overall running performance.
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Running doesn't burn muscle if you eat enough protein
Running is a great form of exercise with many benefits, but it is often questioned whether it burns or builds muscle. The answer depends on the type of running and the duration.
High-intensity interval training (HIIT) and sprinting are forms of running that can build muscle. This is because they cause small microtears in the muscle, and when the body repairs these tears, it increases muscle protein synthesis (MPS), leading to muscle hypertrophy. Long-distance running, on the other hand, can cause significant muscle damage and increase muscle protein breakdown (MPB), thus hindering muscle growth.
However, it is important to note that running alone does not burn muscle. The idea that aerobic exercise burns muscle is not supported by scientific research. While excessive endurance activity and long bouts of exercise can lead to a loss of lean muscle mass, this is often during periods of caloric restriction when the body is not getting enough protein.
Protein is essential for maintaining and building muscle mass. The body needs protein to support the muscle-building process, and while exercise stimulates MPS, protein enhances it. Therefore, it is crucial to consume enough protein to support muscle growth, especially when engaging in running or other forms of exercise.
The recommended amount of protein intake varies depending on age, weight, and activity level. For adults over 65, studies suggest a protein intake of 1.2 to 2.0 grams of protein per kilogram of body weight. For those exercising regularly, the recommendation is 1.1-1.5 grams per kilogram, and for those training for a running event, it is 1.2-1.7 grams per kilogram. It is recommended to consume 15-30 grams of protein at each meal, and this can be achieved by including a serving of dairy and a piece of meat at meals.
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Frequently asked questions
Running long distances can burn muscle, especially if you are not consuming enough calories and protein. However, running is not a muscle-eating activity and can help build lower body muscles if done in short, high-intensity intervals.
To prevent muscle loss, ensure you are consuming enough calories and protein. It is also recommended to include strength training in your workout routine.
Some good post-run snacks to prevent muscle loss include cottage cheese, pea protein powder, avocado, and nuts.
Running can do both. Long-distance running can burn muscle, while short, high-intensity interval training can build muscle.
It is recommended to include strength training in your routine at least twice a week to build muscle. For running, you can try a 40-minute HIIT workout or a 4x4 workout routine, including 45-second sprints at moderate intensity or 30-second hill sprints.
