Building muscle is often viewed as a binary concept: either you have it, or you don't. However, recent research suggests that this might not be entirely accurate. The conventional wisdom of "tear and repair" - where working out causes micro-tears in the muscle fibres, leading to increased size and strength - has been somewhat debunked.
Instead, scientists now believe that mechanical tension is the primary driver of muscle hypertrophy, or an increase in muscle size. This occurs when you lift weights heavy enough to cause physical tension, which stretches the membrane enclosing your muscle cells. Specialized sensors detect this stretch and trigger a response, activating the mTOR pathway, which signals the cell to start muscle protein synthesis.
Metabolic stress is also a key factor in building muscle, but it's not as straightforward as simply pushing yourself to exhaustion. While some people may feel like they're getting away with minimal soreness, others might be experiencing significant damage without any noticeable gains.
The good news for gym-goers is that you don't need to push yourself to the limit to build muscle. In fact, research suggests that combining high tension and metabolic stress can lead to more effective results. This means that varying your workout routine and incorporating different types of exercises can help you achieve both strength and size gains.
Moreover, coaches now recommend focusing on progressive overload rather than pure exhaustion. Gradually increasing the weight or reps over time will still yield benefits without causing unnecessary strain. And while it's unlikely to lead to rapid outgrowth in clothing sizes, it's a more sustainable approach that many people can realistically adopt.
Instead, scientists now believe that mechanical tension is the primary driver of muscle hypertrophy, or an increase in muscle size. This occurs when you lift weights heavy enough to cause physical tension, which stretches the membrane enclosing your muscle cells. Specialized sensors detect this stretch and trigger a response, activating the mTOR pathway, which signals the cell to start muscle protein synthesis.
Metabolic stress is also a key factor in building muscle, but it's not as straightforward as simply pushing yourself to exhaustion. While some people may feel like they're getting away with minimal soreness, others might be experiencing significant damage without any noticeable gains.
The good news for gym-goers is that you don't need to push yourself to the limit to build muscle. In fact, research suggests that combining high tension and metabolic stress can lead to more effective results. This means that varying your workout routine and incorporating different types of exercises can help you achieve both strength and size gains.
Moreover, coaches now recommend focusing on progressive overload rather than pure exhaustion. Gradually increasing the weight or reps over time will still yield benefits without causing unnecessary strain. And while it's unlikely to lead to rapid outgrowth in clothing sizes, it's a more sustainable approach that many people can realistically adopt.