Dominic Stone
Marathon training and muscle building are not mutually exclusive, but they are challenging to balance. Long-distance running can hinder muscle growth, and the extensive training required for a marathon may not leave time for the strength training and calorie surplus needed to build muscle. However, strength training can improve performance in a marathon, and it is possible to maintain muscle mass while training for a marathon by incorporating high-intensity exercises, strength work, and sprint running into your training regimen.
| Characteristics | Values |
|---|---|
| Muscle damage | Marathon running can cause muscle damage and soreness due to microscopic tears and inflammation. |
| Muscle fatigue | Runners may experience muscle fatigue due to the build-up of waste products like lactic acid and the depletion of glycogen stores. |
| Muscle recruitment | Marathons require the recruitment of all muscle fiber types, including fast-twitch fibers typically used for sprinting. |
| Muscle recovery | Adequate protein intake and resistance training are crucial for muscle recovery and maintaining muscle mass during marathon training. |
| Muscle cramps | Dehydration and electrolyte imbalances can contribute to muscle cramps before, during, and after a marathon. |
| Cardiac drift | Pushing the pace can lead to a sharp spike in heart rate without a corresponding increase in effort, breathing, or calorie burn. |
| Hydration | Proper hydration is essential to muscle comfort and performance, and dehydration can lead to thicker blood and kidney stress. |
| Fueling | Consuming energy gels and liquids during a marathon can be challenging for the stomach and may cause nausea or vomiting. |
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What You'll Learn
Resistance training can help maintain muscle mass during marathon training
Marathon training is a gruelling process that can take a toll on the body, particularly the muscles. While it is possible to build and maintain muscle mass while training for a marathon, it requires careful planning and dedication.
Resistance training is a key component of muscle maintenance during marathon preparation. The very nature of marathon training means that the body will break down muscle fibres, leading to muscle damage and weakness. Resistance training helps to fortify muscles, making them more resilient and less prone to injury. This type of training stimulates muscle recovery, aiding in the repair and growth of muscle fibres. It is recommended to schedule at least two strength training sessions per week, focusing on compound lifts like deadlifts, squats, and presses. These exercises target multiple muscle groups, providing a total-body workout that efficiently maintains muscle mass.
Additionally, proper nutrition is crucial. A high protein intake is essential to support muscle recovery and growth. Marathon training often requires more protein than the recommended daily allowance to account for the increased muscle wear and tear. Carbohydrates are also important, as they provide energy and help prevent "hitting the wall," a state of extreme fatigue. It is advised to consume 50 grams of carbohydrates per hour of long-distance running.
It is worth noting that the body's ability to build muscle while training for a marathon is limited. The focus of marathon training is typically endurance rather than muscle gain. However, with proper resistance training and nutrition, individuals can maintain their existing muscle mass and even make gains, though significant muscle growth may require reducing running volume.
Overall, by incorporating resistance training and paying close attention to nutrition, marathon runners can effectively maintain and even build muscle mass during their training journey.
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Protein intake is crucial to maintaining muscle mass
Marathon running is an endurance test that pushes the body to its limits. The body recruits every type of muscle fibre, including fast-twitch fibres, which are usually reserved for sprinting. This intense activity can lead to muscle damage, tears, and fatigue. Therefore, it is crucial for marathon runners to focus on muscle recovery and maintenance.
Protein intake is essential for maintaining muscle mass. When we engage in endurance exercises like marathon running, our bodies break down muscle protein for energy. This breakdown of muscle protein can lead to a decrease in muscle mass over time if not adequately addressed. Consuming sufficient protein helps prevent muscle loss and supports muscle repair and growth.
The recommended daily protein intake varies depending on factors such as age, gender, activity level, and overall health. The minimum recommendation is 0.8 grams of protein per kilogram of body weight, but most people, especially those who exercise regularly, require more. Research suggests that a protein intake of 1.5 to 1.6 grams per kilogram of body weight is optimal for muscle strength and growth. However, it's important to note that consuming too much protein can lead to weight gain and may pose health risks.
To ensure adequate protein intake, marathon runners should include a variety of protein sources in their diet. Animal protein sources, such as meat, poultry, fish, eggs, and dairy, tend to be richer in essential amino acids and are more easily digested than plant-based sources. However, individuals following a plant-based diet can still meet their protein needs by consuming a variety of plant-based proteins, such as rice and beans, hummus and pita bread, or peanut butter on whole wheat bread. Soy is also an excellent plant-based protein option due to its high bioavailability and good amino acid profile.
In addition to protein intake, marathon runners should focus on proper hydration and overall nutrition. Maintaining adequate hydration levels helps the body prioritise getting blood to the muscles, which is crucial for performance and recovery. A well-rounded diet that includes carbohydrates and other essential nutrients is also necessary for optimal muscle function and recovery.
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The heart is the hardest-working muscle during a marathon
Running a marathon is a gruelling endeavour that takes a toll on the body. The leg muscles, in particular, are pushed to their limits, and runners often experience soreness and fatigue. However, it is the heart, a muscular organ, that may be working the hardest during a marathon.
The heart is a vital muscular organ that pumps blood throughout the body. It is composed of cardiac muscle, a type of muscle tissue that contracts with each heartbeat, facilitating blood flow. The heart's primary function is to ensure that blood, which carries essential oxygen and nutrients, reaches all organs and tissues. This organ is essential for the body's overall health and function, and its pumping action is indispensable for the circulatory system to operate.
During a marathon, the heart's workload intensifies as it strives to meet the body's increased demand for oxygen and nutrient-rich blood. The heart rate can spike sharply, a condition known as "cardiac drift," where the heart rate accelerates without a corresponding change in effort, breathing, or calorie burn. This phenomenon occurs due to a decrease in the heart's stroke volume, or the amount of blood pumped with each beat. As a result, the heart compensates by beating faster to meet the body's heightened demands.
The strain on the heart during a marathon is further exacerbated by dehydration. When runners do not adequately hydrate, their blood becomes thicker, placing additional stress on the kidneys. This can trigger difficulties in regulating core body temperature as the body is forced to choose between sending blood to the working muscles or to the cooling system of capillaries beneath the skin.
In summary, while all major muscle groups are engaged during a marathon, the heart, being responsible for pumping blood to the entire body, may be considered the hardest-working muscle. Its relentless task of ensuring oxygen and nutrient delivery to fatigued muscles and organs is critical to a runner's endurance and overall performance.
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Marathon running can cause microscopic muscle tears
The body recruits every type of muscle fibre during a marathon, including fast-twitch fibres usually reserved for sprinting. This extensive muscle recruitment consumes a large amount of blood and nearly all the carbohydrate energy stored in the muscles. As a result, the body starts breaking down muscle protein and body fat, leading to a risk of "hitting the wall".
To prevent muscle damage and promote recovery, it is crucial to maintain a high level of protein intake while training for a marathon. Resistance or strength training is also essential to stimulate muscle recovery and maintain muscle mass. Additionally, proper hydration and fueling are vital to ensure muscle comfort and prevent hyponatremia, a condition where the body becomes overhydrated, leading to a drop in sodium levels.
Furthermore, the accumulation of waste products, such as lactate, in the muscles during a marathon can cause muscle fatigue and heaviness. This fatigue can lead to a change in running form, with a slumping posture and shorter strides. Therefore, it is important to focus on maintaining good running form throughout the race.
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Zone 2 training can help skeletal muscle process lactate
Marathon running is an endurance test that pushes the body to its limits. The body needs to recruit all types of muscle fibres to drive it forward, including fast-twitch fibres that are usually reserved for sprinting. This process uses up a lot of blood and almost all of the muscle's carbohydrate energy supplies.
As a marathon runner's stride begins to slump and their cadence slows, waste products start to build up in the muscles. The main one is lactate, which leaves the legs feeling tired and heavy. Lactate is a byproduct of glucose utilisation, which is used in large amounts by fast-twitch muscle fibres.
Zone 2 training is the highest level of exertion an athlete can achieve without a net accumulation of lactate. It increases mitochondrial density and MCT-1 transporters, which are responsible for clearing lactate from the body. This improves the body's ability to process and clear lactate, which is key for athletic performance.
Zone 2 training is paramount to improving performance, and elite endurance athletes dedicate between 60-75% of their training time to it. It improves the ability to utilise fat and clear lactate, allowing athletes to train longer and get stronger. By understanding muscle metabolism, athletes can fine-tune their training to elicit specific physiological and metabolic adaptations.
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Frequently asked questions
Marathon running does not build muscles in the same way that lifting weights or strength training does. Long-distance running can hinder muscle growth. However, incorporating high-intensity exercises, strength work, and sprint running into your training will help you maintain your current muscle mass.
To maintain muscle mass while training for a marathon, ensure you are training correctly and eating properly. This includes getting adequate rest and eating enough protein and carbohydrates to repair and replenish your muscles.
When training for a marathon, it is recommended to do strength training on days when you are not doing speed work or long runs. Aim to hit each muscle group at least once per week. Your strength training regimen should work the entire body and include upper-body pushes, upper-body pulls, and separate hip hinge and knee hinge movements.
