A scale number is not a development plan. The better question is whether the athlete is growing, fueling, getting stronger, moving well, recovering, and performing appropriately for his stage of development.
Why One Target Weight Does Not Work
High school athletes can differ greatly in biological maturity even when they are the same age. Two effective pitchers may have different heights, frames, and body compositions.
Body Mass and Velocity
Research has found associations between body size or muscle volume and ball velocity, but association is not a prescription to gain weight rapidly. Throwing skill, strength, power, timing, and many other factors also matter.
Focus on Useful Development
Track strength progress, jump and medicine-ball performance, training quality, energy, recovery, and on-field performance. Nutrition should support gradual growth and the athlete's total workload.
- Avoid crash bulking or aggressive cutting
- Prioritize consistent meals and adequate protein and carbohydrate
- Monitor energy, sleep, and recovery
- Use qualified medical or nutrition professionals for individual health needs
When to Get Professional Guidance
Parents should involve a physician or qualified sports dietitian when there are concerns about growth, rapid weight change, disordered eating, or a medical condition. A baseball coach should not replace individualized medical or nutrition care.