The Science of Hypertrophy
Building skeletal muscle tissue, a process known biologically as **hypertrophy**, requires a combination of structured mechanical stimulus and supportive nutrition.
The primary stimulus for muscle growth is **progressive overload**—gradually increasing the tension placed on muscle fibers over time (such as lifting heavier weights, performing more repetitions, or increasing training volume). This mechanical tension triggers cellular signals that stimulate muscle protein synthesis.
Nutritional Requirements for Muscle Growth
To support muscle tissue repair and growth, your diet must provide sufficient energy and nutrients:
- Caloric Surplus: Building muscle is an energy-intensive process. A mild calorie surplus (approximately **200 to 400 calories above maintenance**) provides the necessary energy to support muscle protein synthesis. Estimate your target intake using our TDEE Calculator.
- Adequate Protein: Consuming sufficient protein provides the amino acids needed to rebuild muscle tissue. Track your macro targets using our Macro Calculator.