What are the different muscle physique types and how can one determine which type they fall under?

There are three main muscle physique types: ectomorphs, mesomorphs, and endomorphs. Ectomorphs are typically lean and have difficulty gaining muscle mass. Mesomorphs have a naturally athletic build with well-defined muscles. Endomorphs tend to have a higher body fat percentage and may struggle to lose weight.

To determine which type you fall under, consider your body shape, metabolism, and how easily you gain or lose weight. Consulting with a fitness professional or taking a body composition test can also help identify your muscle physique type.