Strengthen Your Upper Back with I’s, Y’s, and T’s on a 45-Degree Bench

If you’re looking to improve shoulder stability, posture, and upper back strength, I’s, Y’s, and T’s on a 45-degree bench are a must-try. This simple yet effective sequence targets key muscles including the rhomboids, mid traps, and lower traps—all critical for shoulder health and performance.

How to Perform I’s, Y’s, and T’s on a 45-Degree Bench:

1. Setup:
Start by lying face down on a 45-degree incline bench with your chest supported and arms free to move.


I’s – Focus on Lower Trap Activation

  • Let your arms hang down with your hands near your pockets.
  • Palms should face your body.
  • Lift your arms up while keeping your shoulders down.
  • Squeeze your shoulder blades together at the top.

Y’s – Engage Your Lower Traps

  • Extend your arms overhead at about a 45-degree angle so your body forms a “Y” shape.
  • Thumbs should point up.
  • Lift your arms slowly while maintaining a neutral neck position.
  • Focus on controlled movement and activating the lower traps.

T’s – Strengthen Rhomboids and Mid Traps

  • Extend your arms directly out to the sides to form a “T” shape.
  • Palms face down.
  • Lift your arms while squeezing your shoulder blades together.
  • Avoid shrugging your shoulders.

Bonus Tip:

  • For posterior deltoid bias, perform the T’s with your thumbs facing down.
  • For mid trap bias, keep your thumbs facing up.

Incorporate this sequence into your warm-up or shoulder rehab routine a few times a week. It’s a small movement with a big impact on posture and shoulder performance!