Hypertrophy

The increase in muscle cell size through resistance training, leading to bigger muscles. Muscular hypertrophy occurs when muscle fibers sustain damage from resistance training and repair themselves larger and stronger. Two types exist: myofibrillar hypertrophy (increasing contractile proteins for strength) and sarcoplasmic hypertrophy (increasing fluid in muscle cells for size).

Hypertrophy is a core training concept that directly impacts your workout results. Applying it correctly to your exercise routine leads to more efficient workouts and faster progress toward your strength and muscle goals.

Apply hypertrophy principles by performing 3-5 sets of 8-12 reps with controlled tempos. Focus on progressive overload by increasing weight or reps each week. Fitnit tracks your reps automatically so you can focus on form.

Hypertrophy is closely connected to Progressive Overload, Time Under Tension, One Rep Max, Compound Exercise. Understanding these related concepts together gives you a more complete picture of training science and helps you make better decisions about your training program.