Offset Loading 101: The Science of Asymmetric Training with Dr. Joel Seedman and Sal LoDuca
Most strength programs assume both sides of the body should carry the same load. Dr. Joel Seedman and Sal LoDuca have spent years proving that assumption leaves performance and injury prevention on the table. On this episode of HALO Talks, Pete Moore sits down with Seedman, founder of Advanced Human Performance in Atlanta, and LoDuca, co-author of a peer-reviewed study on offset loading, to unpack a training method that exposes muscular asymmetry, corrects it, and is now headed toward a fully AI-driven piece of gym equipment. For club owners, trainers, and anyone tracking where fitness technology and capital are headed next, this conversation is worth the listen.
What Is Offset Loading, and Why Does It Work
Offset loading means placing more weight or tension on one side of the body than the other during a lift, whether that is a squat, a bench press, or a carry. Seedman has used the technique with clients for more than a decade, working with roughly half general population and special population clients and half professional athletes. LoDuca came to the concept independently while researching how to expand an athlete's nervous system, focusing on randomized movement patterns and training the body's non-dominant side. When he went looking for the science behind offset loading, Seedman's work was the closest thing to an existing body of research.
Inside the Research: A Study and an Ongoing Brain Study
LoDuca and a team at the Applied Science and Performance Institute in Tampa ran a study comparing offset loading to traditional loading in the bench press. That research was published in the Journal of Science in Sport and Exercise in November 2022 and found that offset loading produced meaningfully greater gains in pectoral muscle thickness and bench press strength compared to traditional symmetrical loading over a four week training block.
LoDuca also referenced a newer study, conducted with the University of Houston, using EEG caps to measure brain activity during offset loading versus traditional loading on the chest press. According to LoDuca, the traditional loading group showed no measurable neurological change, while the offset loading group showed increased connectivity between the sensory, motor, and cognitive areas of the brain. That study was described on the episode as recently completed, and had not yet appeared in a peer-reviewed publication at the time of this recording.
From Free Weights to AI: Building a Commercial Machine
Offset loading can be done today with barbells, dumbbells, kettlebells, cables, or bands, and Seedman has built his practice around exactly that. LoDuca's next step is building dedicated equipment: machines with independent electromagnetic resistance motors on each side, controlled by AI, that can measure a lifter's asymmetry and automatically adjust the load until symmetry improves. LoDuca has patents approved in the United States, Canada, roughly 30 countries in Europe, Japan, and Australia. A feasibility study has already been completed with Mohammed Iqbal of Sweatworks, and LoDuca is now raising capital to build three working prototypes, with a stated development cost of approximately $300,000. The plan is to place one prototype at the University of Houston, one at Seedman's facility, and one in a commercial gym setting.
Where Offset Loading Fits in an Athlete's Program
Seedman uses offset loading in two ways: as one or two exercises worked into an otherwise traditional session, or as a full session built entirely around offset movements. In his experience, athletes who do offset exercises first tend to lock in better technique on everything else that follows in the same workout. Athletes in high-impact, asymmetrical sports (think offensive linemen, running backs, and combat athletes) see the most direct carryover, while pitchers, throwers, and other precision athletes benefit from the improved proprioception and motor control that offset loading builds around the shoulder joint.
The Business Opportunity: Certification, Equipment, and Market Education
Beyond the hardware, LoDuca and Seedman see an education and certification play similar to what TRX built around suspension training: a lower cost credential that gives trainers a reason to adopt the method well before any equipment purchase is required. The addressable market extends past general fitness and pro sports into neuromotor rehabilitation categories such as early stage Parkinson's disease and MS, along with military training applications, all of which widen the total opportunity considerably.
Key Takeaways
- Offset loading is a training principle, not a proprietary machine. It can be applied today with barbells, dumbbells, kettlebells, cables, or bands, at no equipment cost.
- A peer-reviewed 2022 study on offset loading in the bench press, co-authored by LoDuca, found meaningful strength and muscle thickness benefits over traditional symmetrical loading.
- LoDuca is raising capital to build AI-driven offset loading machines with independent electromagnetic resistance motors, with an approximately $300,000 development cost for three prototypes.
- The long-term plan includes a TRX-style certification model that could give personal trainers a new credential and revenue stream ahead of any equipment purchase.
- Applications extend beyond general fitness and pro sports into neuromotor rehab categories like early stage Parkinson's and MS, plus military training, expanding the addressable market well beyond a single gym vertical.
- For operators and trainers, the near-term opportunity is educational rather than capital-intensive. Offset loading can be introduced with equipment already on the floor, long before any machine purchase enters the picture.
In Their Words
"It's a mind trip. It feels like somebody played a little magic trick on your brain." (Dr. Joel Seedman)
"When you're training in a symmetrical way to live, work, and play in an asymmetrical world, it just doesn't make sense." (Sal LoDuca)
About Dr. Joel Seedman
Dr. Joel Seedman is an exercise physiologist and strength and conditioning specialist, and the founder of Advanced Human Performance, a training facility in Atlanta, Georgia. He works with professional and collegiate athletes across multiple sports, along with general population clients, and has authored several books and training programs on strength, biomechanics, and injury prevention.
About Sal LoDuca
Sal LoDuca is the founder of Offset Ventures, LLC, and a co-author of the 2022 peer-reviewed study on offset loading published in the Journal of Science in Sport and Exercise. He is currently developing AI-driven offset loading equipment and raising capital to bring the technology to market.
Resources and Links
Advanced Human Performance: https://www.advancedhumanperformance.com/
Study: Sharp M., Ottinger C., Gheith R., Stefan M., Lowery R., LoDuca S., Wilson J. (2022). "The Effects of Offset Loading Versus Traditional Loading in the Bench Press Exercise on Muscle Thickness and Strength in Trained Males." Journal of Science in Sport and Exercise. DOI: 10.1007/s42978-022-00200-1
Curious how emerging training methods like offset loading connect to deal flow, growth capital, or M&A in the health, active lifestyle, and outdoors space? Visit integritysq.com to set up a free consultation with the Integrity Square team.
How IGNITE Fitness Holdings Built One of the Largest Planet Fitness Franchise Networks in North America
