How to Gain Muscle with Pectus Excavatum

The visual goal for most people is a fuller upper chest, broader shoulders and a strong upper back. That shape comes from rep ranges between 6 and 15, controlled tempo and steady weekly progression.

• Pick 2 upper-body sessions per week with at least one incline press.
• Match every pressing set with a pulling set to keep the shoulders balanced.
• Train shoulders twice a week — lateral raises do more for the V-shape than people expect.

• Calories — a small surplus of around 200–400 kcal per day.
• Protein — 1.6 to 2.2 g per kg of bodyweight, spread across the day.
• Carbs — keep them generous around training to fuel hard sets.
• Hydration — water before, during and after sessions.

Most people who think they cannot gain muscle simply are not eating enough or not training hard enough. Track for two weeks and the answer usually becomes obvious.

Sleep is where muscle is actually built. Seven to nine hours, consistent bedtime, dim light in the evening. Add two short walks a day to support recovery and digestion.

Training may improve the appearance of pectus excavatum through muscle and posture, not by changing the chest wall itself. Give it three to six months of consistent work before you judge the result.