Cheat Reps, Biofeedback & Science-Based Lifting: Today's Top Fitness Findings

Here's a finding that might ruffle some feathers in the gym: strict form may not be as crucial for muscle growth as we've been led to believe. A new study titled "Do Cheaters Prosper?" investigated whether external momentum—commonly called "cheat form"—affects muscle hypertrophy compared to strict technique during upper body resistance training.

The research followed untrained young adults performing biceps curls and triceps pushdowns over 8 weeks, comparing strict execution against conditions where external momentum was deliberately introduced. The results? Both groups showed equivalent increases in muscle thickness in the elbow flexors and extensors.

But before you start swinging every weight, note this important caveat: the researchers emphasize this equivalence applies specifically to single-joint upper body exercises and cannot be generalized to multi-joint movements or lower body muscles. The Bayesian analysis provided strong evidence supporting the null hypothesis—that external momentum doesn't significantly impact hypertrophy outcomes in these specific conditions.

For the average lifter, this challenges the dogma of perfect form above all else, though experts still caution against completely abandoning technique, especially for compound movements where injury risk increases.

If you've ever struggled to feel your rear deltoids or infraspinatus firing during shoulder exercises, new research might offer a solution. A study examined the effects of real-time EMG biofeedback on selective muscle activation during Theraband shoulder external rotation exercises in individuals with round shoulder posture.

The research specifically looked at whether visual feedback about muscle activity could help people activate the infraspinatus (a key rotator cuff muscle) while inhibiting the posterior deltoid—a common problem for those with postural issues.

This approach represents a fascinating intersection of technology and traditional rehabilitation. By giving users real-time data about which muscles are working, EMG biofeedback could accelerate motor learning and help correct muscle imbalances that contribute to poor posture and injury risk.

For fitness professionals and physical therapists, this finding suggests that incorporating biofeedback tools could revolutionize how we address postural dysfunctions and rehabilitate shoulder injuries. The ability to "see" muscle activation in real-time provides an objective measure that supplements verbal cues and hands-on coaching.

In a thought-provoking video, popular fitness content creator Dr. Mike addresses two major frustrations with the science-based lifting community. While the channel has built a reputation for rigorously analyzing fitness claims using scientific evidence, the creator argues that the movement has developed some problematic tendencies.

The video critiques aspects of how science is communicated in fitness circles, suggesting that overemphasis on methodological purity can sometimes obscure practical application. Additionally, the creator points out concerns about how certain "evidence-based" accounts can come across as gatekeeping or dismissive of practical experience.

This meta-analysis of fitness science communication highlights an ongoing tension in the industry: the challenge of translating complex research into actionable advice without oversimplifying or losing nuance. For readers navigating conflicting fitness information, the video offers a reminder that critical thinking applies even to "science-based" content—and that perfect adherence to research protocols doesn't always translate to better real-world results.

The discussion serves as a valuable reminder that while science should guide our fitness decisions, the way we consume and interpret research matters just as much as the research itself.