
Running is a popular form of exercise, with people taking it up for various reasons, from improving health to training for races. But does running give you muscle? The short answer is yes, but not in the same way that strength training does. Running can help build muscle in the lower body and core, but it is important to note that the type of running matters. High-intensity, short-duration running, such as interval training or sprinting, is more effective for muscle growth than long-distance running, which may even inhibit muscle growth. Additionally, proper nutrition, particularly protein intake, is crucial to support the muscle-building process.
| Characteristics | Values |
|---|---|
| Muscle Building | Running can help build muscle, particularly in the lower body and core, but it is not as effective as strength training. |
| Muscle Type | Running builds lean tissue and muscle, leading to a more defined and toned appearance rather than bulk. |
| Muscle Growth Hormones | Running, especially high-intensity cardio, can increase growth hormone levels, promoting muscle growth. |
| Muscle Protein Synthesis | Exercise, including running, stimulates muscle protein synthesis (MPS), which contributes to muscle growth when exceeding muscle protein breakdown (MPB). |
| Nutrition | Adequate protein intake is crucial for muscle building, as it enhances MPS. Recommended intake is 0.64-0.91 grams of protein per pound of body weight daily. |
| Running Type | High-intensity, short-duration running, such as interval training and HIIT workouts, is more effective for muscle building than long-distance running. |
| Recovery | Allowing sufficient recovery time between runs is essential for muscle growth and preventing injuries. |
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What You'll Learn

High-intensity, short-duration running may build muscle
Running is a great form of exercise with many health benefits, including weight loss. It is also an excellent way to build muscle, especially in the lower body and core. However, the type of running one engages in is crucial in achieving muscle growth. While long-distance running may cause muscle damage and inhibit muscle growth, high-intensity, short-duration running may promote it.
High-intensity, short-duration running, such as sprinting, has been found to build muscle. This type of running involves short bursts of intense exercise followed by recovery periods. The high intensity of the exercise stimulates muscle protein synthesis (MPS), which is the process of adding protein to the muscle. However, it is important to note that muscle growth only occurs when MPS exceeds muscle protein breakdown (MPB). Therefore, the recovery periods between the high-intensity bursts are essential to allow the body to synthesise more protein than it breaks down.
One study found that recreationally trained college students who engaged in high-intensity interval training (HIIT) involving 4 sets of running at near-maximum capacity for 4 minutes, followed by 3 minutes of active rest, showed an 11% increase in muscle fibre area in their quadriceps after 10 weeks of training 3 times per week. Additionally, a study of 30 male amateur runners found that those who ran shorter distances at a faster pace had lower levels of MPB, indicating that high-intensity, short-duration running may build muscle more effectively than long-distance running.
To optimise muscle growth, it is important to combine high-intensity, short-duration running with a balanced diet rich in protein. Protein is a crucial component of muscle, and ensuring adequate protein intake can enhance MPS and promote greater muscle gains. Additionally, proper nutrition supports the muscle-building process and prevents the hard work from going to waste.
In conclusion, high-intensity, short-duration running may build muscle, particularly in the lower body and core. By engaging in this type of running and incorporating HIIT principles, individuals can effectively stimulate MPS and promote muscle growth while enjoying the additional health benefits that running provides.
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Long-distance running may inhibit muscle growth
Running is a great form of exercise that offers many health benefits, including weight loss and improved health. While it is a good way to build muscle, long-distance running may inhibit muscle growth.
High-intensity, short-duration running workouts like HIIT can help build lower body muscle, especially in the quadriceps and hamstrings. However, long-distance running can have the opposite effect, increasing muscle protein breakdown (MPB) and hindering muscle growth. A study of 30 male amateur runners found that those who ran the longest distances (26.1 miles) had the highest levels of MPB, causing significant muscle damage and inhibiting muscle growth.
The body builds muscle when muscle protein synthesis (MPS) exceeds MPB. While exercise stimulates MPS, protein enhances it further, promoting greater muscle gains. It is recommended that to build muscle, one should consume between 0.64-0.91 grams of protein per pound of body weight daily. For a 150-pound person, this equals 96-137 grams of protein. Good sources of protein include meat, poultry, dairy, fish, eggs, soy, beans, and legumes.
In addition to adequate protein intake, proper nutrition and hydration are crucial for supporting the muscle-building process. Carbohydrates, for example, are an important energy source for anaerobic exercises like sprinting. Allowing enough time for recovery between workouts is also essential to promote muscle growth.
While long-distance running may not be the most effective way to build muscle mass, it is important to note that it can help develop lower body and core muscles to a certain degree. It builds lean tissue and muscle while encouraging fat loss, resulting in a more defined and lean body.
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Running builds lean muscle and encourages fat loss
Running is a great way to build lean muscle and encourage fat loss, but it works best for people who are new to training. If you're untrained and take up running, you will see additional lean body mass, but this is not the same as the muscle growth you would get from lifting weights. Running builds muscle, but it won't make you "bulk up".
Running is good for building muscle, but only if you give your body the right fuel. Without adequate nutrients, especially protein, your body won't be able to support the muscle-building process. To build muscle, you should eat between 0.64-0.91 grams of protein per pound of body weight every day. Good sources of protein include meat, poultry, dairy, fish, eggs, soy, beans, and legumes.
High-intensity, short-duration running like sprinting and HIIT workouts may build muscle, while long-distance running may inhibit it. Muscle building occurs when muscle protein synthesis (MPS) exceeds muscle protein breakdown (MPB). Exercise stimulates MPS, and protein enhances it further, promoting greater muscle gains. This is why many people drink a protein shake before or after their workouts.
If building muscle is your goal, the type of running you do is important. The muscle-building capabilities of running are associated with shorter distances run at a faster pace, such as interval training. One study found that those who ran the longest distances had the highest levels of MPB, causing significant muscle damage and inhibiting muscle growth.
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Running is not the right type of stimulus to build muscle mass
Running is a great form of exercise to improve your health, reduce stress, and compete in races. However, it is not the best way to build muscle mass, especially when compared to strength training.
While running can help develop lower body muscles and core muscles to a certain degree, it will not lead to significant muscle growth or a "bulkier" body frame. Instead, running builds lean tissue and lean muscle, encouraging fat loss and a more defined and toned body.
The type of muscle fibres used in running also differs from those used in strength training. Running uses slow-twitch muscle fibres, which are more prevalent in endurance-based activities, whereas strength training and bodybuilding focus on fast-twitch muscle fibres, which are responsible for explosive movements and power.
Additionally, long-distance running may inhibit muscle growth due to increased muscle protein breakdown (MPB). A study by the US Army Research Institute found that long-distance running can lead to significant muscle damage and hinder muscle growth. In contrast, high-intensity, short-duration running, such as sprinting or interval training, may promote muscle growth by increasing muscle protein synthesis (MPS).
Furthermore, proper nutrition, particularly protein intake, is crucial for supporting muscle growth. Without adequate protein intake, the body cannot effectively build muscle, and the muscle-building benefits of running may be diminished.
In conclusion, while running can provide some muscle-building benefits, it is not the ideal stimulus for building muscle mass. Strength training and resistance exercises, combined with proper nutrition, are more effective for achieving significant muscle growth.
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Running is good for building lower body muscles
Running is a great form of exercise for building lower body muscles. While it is true that strength training and weight lifting are more effective for muscle growth, running can still help build muscle, particularly in the legs, glutes, hamstrings, quads, and calves.
High-intensity, short-duration running, such as sprinting and interval training, is the most effective form of running for building muscle. One study found that recreationally trained college students who completed high-intensity interval training (HIIT) involving running at near maximum capacity for 4 minutes, followed by active rest, showed an 11% increase in muscle fiber in their quadriceps after 10 weeks.
The muscle-building benefits of running are also associated with running shorter distances at a faster pace. A study by the US Army Research Institute found that steady-state cardio, such as running and cycling, can increase growth hormone levels. However, the study also found that muscle protein breakdown (MPB) was higher in those who ran longer distances, which can inhibit muscle growth.
It is important to note that running alone may not lead to significant muscle mass gains. To maximize muscle growth, it is crucial to combine running with strength training and ensure proper nutrition, particularly sufficient protein intake, to support the muscle-building process.
Overall, while running may not be the primary driver of muscle growth, it can certainly contribute to building lower body muscles when combined with other training modalities and a balanced diet.
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Frequently asked questions
Running can help build muscle, especially in the lower body and core, but it won't lead to significant mass gain. Running is good for building lean muscle and encouraging fat loss, resulting in a more defined body.
High-intensity, short-duration running, such as interval training or sprinting, is ideal for building muscle. Running uphill is also a great way to build strength in your glutes, hamstrings, quads, and calves.
Running stimulates muscle protein synthesis (MPS), which promotes muscle growth. However, it also causes muscle protein breakdown (MPB), so it's important to allow time for recovery to minimise muscle damage.
To build muscle through running, it's crucial to have a balanced diet with adequate nutrients, especially protein. It's recommended to consume between 0.64-0.91 grams of protein per pound of body weight daily.











































