Both weight and reps play a crucial role in biceps growth.
Weight:
- Stimulates Muscle Protein Synthesis: Lifting heavier weights creates more tension and damage to muscle fibers, triggering a greater response in muscle protein synthesis. This process leads to muscle growth.
- Strength Gains: Using heavier weights helps you build strength, which is essential for lifting heavier weights in the future. This allows you to progressively overload your muscles, further stimulating growth.
- Limited Reps: Heavier weights generally allow for fewer reps per set.
Reps:
- Muscle Endurance: Higher reps focus on increasing muscle endurance and vascularity.
- Muscle Hypertrophy: While heavier weights are often associated with muscle growth, higher reps can also contribute to hypertrophy, particularly when performed close to failure.
- Metabolic Stress: Higher reps lead to increased metabolic stress, which can also contribute to muscle growth.
Conclusion:
The ideal combination of weight and reps depends on your individual goals and training experience. Both weight and reps contribute to biceps growth, and it's essential to find a balance that works for you.