Logan Steele
Muscular hypertrophy is the process of increasing muscle mass and is typically associated with bodybuilding. It is often achieved through strength training, such as weightlifting, and resistance training. The goal of this type of training is to induce muscle hypertrophy by straining the muscles to cause damage and stimulating repair and growth. There are three primary mechanisms of hypertrophy: creating high mechanical tension using heavy loads, creating high metabolic stress with a high time under tension, and creating high muscle damage with an emphasis on the eccentric phase. The number of repetitions and sets, the amount of weight, and rest intervals are important variables that influence hypertrophy. Additionally, diet and sleep are crucial factors, with protein being the most important macronutrient for hypertrophy development.
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What You'll Learn
- Weightlifting schedules: Lift heavy weights three days a week, with rest days in between
- Myofibrillar hypertrophy: Increase in myofibrils leads to greater muscle strength and density
- Sarcoplasmic hypertrophy: Increase in muscle glycogen storage makes muscles appear larger
- Resistance training: Using high loads and low repetitions to create mechanical tension and stimulate muscle growth
- Diet and supplements: Consume protein, amino acids, and other supplements to support muscle growth and recovery
Weightlifting schedules: Lift heavy weights three days a week, with rest days in between
Weightlifting is an effective way to stimulate muscle hypertrophy. To build muscle, it is recommended to lift weights three days a week, allowing for rest days in between. This gives your muscles time to recover, which is essential for muscle growth.
A sample weightlifting schedule for three days a week could look like this:
Day 1
- Warm-up: 5-10 minutes of light cardio and dynamic stretching
- Back squat: 3 sets of 4-6 reps with 2-3 minutes rest between sets
- Front squat: 3 sets of 4-6 reps with 2-3 minutes rest
- Leg press: 3 sets of 8-10 reps with 2-3 minutes rest
Day 2
- Warm-up: 5-10 minutes of light cardio and dynamic stretching
- Bench press: 3 sets of 4-6 reps with 2-3 minutes rest
- Incline bench press: 3 sets of 4-6 reps with 2-3 minutes rest
- Dumbbell flys: 3 sets of 8-10 reps with 2-3 minutes rest
Day 3
- Warm-up: 5-10 minutes of light cardio and dynamic stretching
- Deadlift: 3 sets of 4-6 reps with 2-3 minutes rest
- Romanian deadlift: 3 sets of 4-6 reps with 2-3 minutes rest
- Leg curls: 3 sets of 8-10 reps with 2-3 minutes rest
It is important to note that the number of reps and sets can vary depending on your fitness goals and current level. For muscle hypertrophy, it is generally recommended to perform 6-12 reps per set, with heavier weights and lower reps if you are focusing on strength, and lighter weights and higher reps for muscle endurance. It is also important to progressively overload the muscles by increasing the weight, reps, or sets over time to continue challenging your body and promote growth.
Additionally, proper nutrition and adequate sleep are crucial for muscle recovery and growth. Eating enough protein and carbohydrates will boost hypertrophy and fuel your workouts. It is recommended to consume 0.8-1 gram of protein per pound of body weight per day and at least 2-3 grams of carbohydrates per pound of body weight per day.
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Myofibrillar hypertrophy: Increase in myofibrils leads to greater muscle strength and density
Myofibrillar hypertrophy is one of two types of muscle hypertrophy, the other being sarcoplasmic hypertrophy. It refers to the increase in the number of myofibrils within muscle fibres, which in turn increases the size of the muscle fibres. Each myocyte contains myofibrils that allow the muscles to contract.
Myofibrillar hypertrophy is the main increase in strength that is seen in most power-based sports, such as powerlifting, weightlifting, and throwing. This is because an increase in the number of myofibrils creates a stronger muscle by providing more contractile units. This increase in contractile units results in greater muscle strength and density.
To achieve myofibrillar hypertrophy, strength training is essential. This involves training against resistance that gradually increases over time. The strain placed on the muscles causes damage to muscle fibres, which the body then repairs, resulting in the muscles adapting by increasing in size and strength.
The best approach to achieving muscle growth is still a matter of debate. However, it is generally accepted that consistent strength training will produce hypertrophy over the long term. This training can take the form of progressive overload, which involves progressively increasing resistance or repetitions over successive bouts of exercise to maintain a high level of effort. Heavier weight and low-rep strength training will create a greater degree of myofibrillar hypertrophy.
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Sarcoplasmic hypertrophy: Increase in muscle glycogen storage makes muscles appear larger
Sarcoplasmic hypertrophy is one of two types of muscle hypertrophy, the other being myofibrillar hypertrophy. It refers to an increase in muscle glycogen storage, which makes muscles appear larger. Each gram of glycogen is stored with at least 3 grams of water, so an increase in glycogen within muscle fibres increases the amount of water within the sarcoplasm, causing the muscles to grow in size.
However, the extent to which glycogen contributes to sarcoplasmic hypertrophy is still a matter of debate. While some studies have found that high-volume training over a period of several months does lead to an increase in the relative space taken up by glycogen within muscle fibres, others have found no such increase. Furthermore, the increase in muscle size resulting from sarcoplasmic hypertrophy does not lead to an increase in muscular strength. This is in contrast to myofibrillar hypertrophy, which leads to an increase in muscular strength and density, in addition to a small increase in muscle size.
To stimulate sarcoplasmic hypertrophy, one can focus on strength training, which involves training against resistance that gradually increases over time. Weightlifting is a common way to increase hypertrophy, and it can be done in a variety of ways. For example, one can perform many repetitions (reps) at a lower weight or lift a heavy weight for fewer reps. The latter is more effective for stimulating growth and definition in muscle fibres. However, it is important to note that lifting too light a weight will not allow one to see the same gain in definition. It is also important to progressively increase the resistance over time, as staying on the same weight for too long will not challenge the muscles and will prevent hypertrophy.
In addition to strength training, other factors that can affect muscle hypertrophy include biological factors such as DNA and sex, nutrition, and training variables. For example, a high-carbohydrate diet can increase the relative space taken up by glycogen within muscle fibres, and thus may contribute to sarcoplasmic hypertrophy. However, it is worth noting that immediately after hard resistance training, the relative space taken up by glycogen within muscle fibres is significantly decreased.
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Resistance training: Using high loads and low repetitions to create mechanical tension and stimulate muscle growth
Resistance training is a key method for stimulating muscle hypertrophy. This type of training involves working against resistance that gradually increases over time, straining and causing damage to the muscles, which then repair and adapt by growing in size and strength.
To create mechanical tension and stimulate muscle growth, one effective method is to use high loads and low repetitions in resistance training. This means lifting heavy weights of >85% 1RM (one-repetition maximum) for a low number of repetitions (1-5) and taking long rest intervals of around 3-5 minutes. This type of training emphasises mechanical tension and results in high levels of neural recruitment, or fast-twitch muscle fibres.
Research has shown that high-load resistance training can lead to greater muscle thickness compared to low-load training. One study found that young men who performed leg extensions with high loads and low volumes achieved almost twice the degree of muscle thickness compared to those who trained with low loads and high volumes.
However, it is important to note that high-load resistance training may not be suitable for everyone. Some studies suggest that training with low loads can produce similar hypertrophy results when volitional fatigue occurs. Additionally, training with moderate loads may be more enjoyable for some individuals, which can impact long-term adherence to a training programme.
It is also worth considering the potential negative consequences of high-load training due to higher training volumes. For example, one study found that participants who followed a powerlifting-type protocol with heavy loads displayed signs of overtraining and joint-related issues, whereas those following a bodybuilding-type protocol with moderate loads did not experience these issues. Therefore, it is crucial to carefully consider the specific goals, fitness levels, and potential risks when designing a resistance training programme to stimulate muscle hypertrophy.
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Diet and supplements: Consume protein, amino acids, and other supplements to support muscle growth and recovery
Diet and supplements are an important component of muscle hypertrophy, alongside exercise. Muscle hypertrophy refers to the process of increasing and growing muscle cells, which can be achieved through weightlifting and breaking down muscle fibres.
Protein
Protein is essential for muscle growth and repair, as it is a key component of muscle. A sufficient protein intake is required to build and repair muscle tissue, and a deficiency can hinder muscle gains. The recommended amount is 0.8-1 gram of protein per pound of body weight per day, although some sources suggest 1.5-2 grams per pound of body weight for faster gains. Lean protein sources are ideal, such as plant-based protein powder, lean meat, chicken, fish, and eggs. It is also important to distribute protein intake over 5-7 daily meals rather than consuming a large amount in just a few meals.
Amino Acids
Amino acids are the building blocks of protein and are, therefore, crucial for muscle growth. Leucine is an important amino acid for building muscle and managing blood sugar levels, and your body cannot produce it on its own. Eggs are a good source of leucine, as well as other nutrients that support muscle growth.
Supplements
Supplements are not necessary for muscle growth, but they can accelerate results. Creatine is a recommended supplement, as it boosts muscle and strength gain, improves endurance, and reduces muscle damage and soreness. A natural pre-workout drink like Pulse can also enhance energy, mood, focus, and endurance, as well as reduce fatigue.
Carbohydrates
Carbohydrates are important for muscle building, especially for athletes. High insulin levels post-workout are beneficial, as insulin carries carbohydrates and amino acids into muscle cells. Dextrose or maltodextrin powder mixed with whey is a good source of carbohydrates after a workout, followed by a protein and carbohydrate whole food meal 1-1.5 hours later.
Other Considerations
While supplements can be beneficial, it is important to focus on whole foods and ensure a well-balanced diet with healthy carbohydrates and fats. Beans, for example, are a good source of protein and can be included in a diet for lean muscle gain. Additionally, omega-3 fatty acid supplements may help build muscle mass, and rice protein supplements have been shown to be effective during weight training.
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Frequently asked questions
Muscle hypertrophy is the enlargement of muscle mass, usually achieved through strength training and weight lifting. To stimulate hypertrophy, you need to create high mechanical tension, muscle damage, and metabolic stress. This can be done by lifting heavy weights for a low number of reps, or lifting lighter weights for a high number of reps.
The frequency of your workouts will depend on your fitness goals and current level. It is recommended to leave a day in between sessions to allow your muscles to recover, as recovery is essential for muscle growth.
Aside from training, you can stimulate muscle hypertrophy by getting good quality sleep, eating a healthy diet rich in protein and other macronutrients, and keeping your stress levels low.
