30 Seconds Summary
Is Regional Hypertrophy Predictable?

  • The study measured the EMG (muscle activity) and muscle swelling (thickness and cross-sectional area) of the upper and mid chest in response to flat and incline bench pressing.
  • Previous research suggested incline benching increases upper chest hypertrophy more than flat benching, but this study found that muscle swelling responses do not fully align with past longitudinal hypertrophy data.
  • EMG results showed higher activity in the upper chest during incline bench and higher activity in the mid chest during flat bench.
  • Muscle swelling significantly increased more in the mid chest compared to the upper chest after flat benching, while incline benching did not show the same pattern.
  • The article highlights that acute muscle responses (EMG and swelling) measured immediately after exercises might not reliably predict long-term hypertrophy.
  • Differences in regional hypertrophy from varying bench angles might reflect more complex influences than just acute exercise responses, possibly including individual biomechanics and previous training history.
  • Further research is needed to establish more accurate predictive measures of hypertrophy and to validate whether acute muscle responses are indicative of long-term growth.

Track & Plan Workouts
with Ease

  • Unlimited workout logs
  • Automatic volume tracking
  • Personalized programs
  • RPE support, rest timer, and more!
WorkoutWise Screenshot

Read Next

Research Spotlight: How do powerlifters taper for competitions?

The study reviewed is “Characterizing the Tapering Practices of United States and Canadian Raw Powerlifters” by Travis et al.

Stronger By Science

Greg Nuckols

The Benefits of Massing

I started with RP in November of 2015. At the time, I was doing 5 days a week of CrossFit (multiple WODs and strength a day, with goals of qualifying for regionals), and was doing Olympic Weightlifting 3 days a week. I had recently qualified for the American Open as a 63 KG, which would be my thir…

Renaissance Periodization

Joelle Emery