New Powerlifting Research Is Looking More Closely at Shoulder Mechanics in the Bench Press

A new paper published ahead of print in the Journal of Strength and Conditioning Research examined shoulder-joint kinematics during the barbell bench press in competitive powerlifters.

The study is useful because it focuses on how the shoulder moves during a real strength exercise rather than reducing technique to one cue or universal rule.

What the Study Investigated

Researchers from the University of Michigan used markerless motion capture to assess shoulder movement while competitive powerlifters performed the bench press. The authors noted that shoulder injury risk related to the lift—particularly among female athletes—has been understudied.

This is a movement analysis, not a trial proving that one grip, arch or bar path prevents injury for everyone.

Why Shoulder Motion Matters

The shoulder is highly mobile and depends on coordinated movement from the upper arm, shoulder blade and torso. Bench-press technique changes the positions and demands placed on those structures throughout a repetition.

Understanding those positions can help lifters ask better questions about grip width, touch point, range of motion, fatigue and individual anatomy.

Do Not Turn It Into a Universal Rule

A movement pattern observed in competitive powerlifters does not automatically tell every recreational lifter what to copy. Competitive technique is shaped by rules, proportions and the goal of moving the most weight.

Treat the research as context, not permission to ignore pain or proof that one setup is always safer.

Practical Bench-Press Takeaways

Use a setup you can repeat with control. Keep the bar path and touch point consistent, use a grip that allows a stable position and avoid forcing a range of motion that creates sharp pain.

Progress gradually and pay attention to how your shoulders respond across multiple sessions.

Track the Variables

Log the load, sets, reps and useful notes about grip, tempo, range of motion or discomfort. Gym Log can help you build that history so you can see whether a technique change improves performance and comfort over time.

The Bottom Line

The research adds detail to the conversation around bench-press technique and shoulder movement, but it does not create a universal setup for every athlete.

Use evidence to ask better questions, train with control and let your own repeatable training history guide the next adjustment.