Muscle Growth – How it works & How to make it work better!

May 3, 2023

When you start weight training, one of the primary goals is usually to build muscle mass. Understanding how muscles grow in response to weight training can help you design an effective workout program and achieve your goals more quickly. In this blog post, we will explore the process of muscle growth and how it happens in response to weight training.

Muscle growth, also known as hypertrophy, is the process of increasing the size and strength of muscle fibres. There are two primary types of hypertrophy: myofibrillar and sarcoplasmic hypertrophy. Myofibrillar hypertrophy involves an increase in the number of contractile units within muscle fibres, while sarcoplasmic hypertrophy involves an increase in the amount of fluid and non-contractile proteins within muscle fibres. Both types of hypertrophy contribute to muscle growth, but the type of training you do can influence which type of hypertrophy you experience to a certain degree.

The process of muscle growth in response to weight training can be broken down into three main stages: muscle damage, muscle protein synthesis, and muscle remodelling.

The first stage is muscle damage. When you lift weights, you create micro-tears in your muscle fibres. This might sound like a bad thing, but it’s actually a necessary part of the muscle growth process. The muscle fibres repair themselves after the workout, and this repair process is what leads to muscle growth. This is why you might feel sore after a workout – it’s a sign that your muscles are repairing themselves.

The second stage is muscle protein synthesis. After you lift weights, your body needs to synthesise new muscle proteins in order to repair the micro-tears and build new muscle tissue. This process is known as muscle protein synthesis. This is where nutrition comes into play – in order to build muscle, your body needs a sufficient amount of protein. You should aim to consume 1-1.5 grams of protein per pound of body weight per day, ideally from high-quality sources like lean meats, fish, eggs, and protein supplements.

The third stage is muscle remodelling. After the muscle protein synthesis has taken place, the muscle fibres undergo remodelling. This means that they become stronger and more resilient to future workouts. With consistent weight training, your muscles will continue to adapt and grow over time.

So, how can you maximise muscle growth in response to weight training? There are a few key factors to consider:

  1. Progressive overload: In order for your muscles to continue growing, you need to continually challenge them with heavier weights or more reps. This is known as progressive overload. If you’re not challenging yourself in each workout, your muscles won’t have a reason to continue growing.
  2. Sufficient rest and recovery: Your muscles need time to recover and repair themselves after a workout. Aim to get 7-8 hours of sleep per night, and take rest days as needed.
  3. Proper nutrition: As mentioned earlier, your body needs a sufficient amount of protein in order to build muscle. Make sure you’re also consuming enough carbohydrates and healthy fats to fuel your workouts and support muscle growth.
  4. Consistency: Muscle growth takes time and consistency. Aim to weight train 3-4 times per week, and stick to your program for at least 8-12 weeks before making any major changes.

In conclusion, muscle growth in response to weight training is a complex process that involves muscle damage, muscle protein synthesis, and muscle remodelling. By understanding these stages and focusing on factors like progressive overload, proper nutrition, and consistency, you can maximise your muscle growth and achieve your goals more quickly. Remember, building muscle takes time and patience, but with the right approach, you can achieve the results you’re looking for.

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