Exercise Scientist Critiques Magnus Midtbø: How Is He This Strong?
In a Nutshell
Dr. Mike breaks down how Magnus Midtbø achieves world-record pull-up numbers and superhuman feats despite an average physique. Three primary factors explain his strength: exceptional nervous system optimization for vertical pulling, advantageous tendon insertion points that amplify leverage, and a genetically large brachial artery that delays metabolite buildup during high-rep sets. The takeaway is that Magnus's climbing background, tendon architecture, and superior blood flow allow him to maintain near-max strength across dozens of reps, far outpacing bigger lifters.
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Magnus Midtbø broke the long-standing record of 23 repetitions with a goal to beat it. He performed completely full range of motion pull-ups with unbelievable technique. This was a world record attempt.
Dr. Mike from RP Strength profiles Magnus Midtbø, a former professional rock climber. Magnus appears to be a regular muscle guy but demonstrates insane strength that defies his physicality. Magnus used to be a professional rock climber before transitioning to YouTube content creation.
The challenge requires crawling all the way around back to the chair without touching the ground. This tests insane back strength, insane grip strength, and massively insane strength of the abdominals and hip flexors - the anterior chain. Magnus successfully completed this physically demanding task.
There are many different kinds of strength including farm strength, wrestling strength, judo strength, and mountain climber strength. Strength is a skill, and how you express it is a big part of what it is. Wealth can be category specific, and strength can also be situation specific. People who can do impressive feats in different sports and tasks typically also have a lot of strength in the gym. Some have exceptional nervous system ability to direct forces specifically as needed, while others have high gym strength that transfers to different activities.
Magnus trained with Larry Wheels, one of the strongest people around. Larry was repping the stack for his working set on a rowing machine. Magnus, weighing 165 lbs, was also repping the stack with very good technique, crazy full range of motion, and no swinging. This is a feat Dr. Mike admits he cannot do despite having a much bigger back.
Three key factors explain Magnus's exceptional strength:
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Nervous system optimization: His nervous system is optimized for vertical pulling, an incredibly high-skill activity he's practiced for a long time
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Tendon architecture: His tendons could insert further up the bone away from the joint, making him unbelievably strong. This is similar to chimpanzees having tendons that insert further away from bones, explaining their irrational strength relative to their size
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Genetic factors: Magnus demonstrates exceptional manliness and genetic gifts
Magnus attempted the one-arm muscle-up, his hardest calisthenics challenge. A muscle-up with two hands is very impressive, but one hand is purely insane. This requires doing a pull-up and a dip with just one arm consecutively. Magnus attempted this multiple times, focusing on perfecting technique with regrips.
Magnus performed explosive clapping pull-ups where he had to touch his hands back down to his legs every rep. Each rep required maximum effort to produce enough power for hang time to clap hands on legs. He achieved 19 repetitions. This demonstrates phenomenal full range of motion and explosive power, which is a different category from regular pull-ups.
For developing explosive pull-ups like clapping variations, there's no magical advantage over simply adding weight to regular pull-ups. However, for skill development in explosive clapping pull-ups, practice must be specific and frequent.
To become exceptional at muscle-ups, a three-part training approach is recommended:
- Heavy-weighted pull-ups performed explosively, focusing on high velocity at the top
- Heavy-weighted dips performed explosively with massive explosion from the bottom
- Muscle-ups themselves practiced multiple times per week
Practicing the skill itself is ultra important. Multiple sessions per week are key for mastery.
Grip events appear unimpressive but are nearly impossible. The Coke handle grip requires grabbing and removing an implement with over 100 pounds of weight. Failure occurs when fingers simply unravel. This tests crushing grip, which climbers possess at exceptional levels.
Pinch grip testing involves an alligator-like grip with minimal surface area. Magnus demonstrated exceptional force application, sending implements flying out with velocity rather than slowly leaking out.
Magnus performed strict pull-ups with 11.25 kilos (approximately 25 lbs) added weight. The long-standing record was 23 repetitions. Magnus achieved 52 repetitions with completely full range of motion, head clearing over the bar each rep. His grinding ability combines both fast twitch and slow twitch fiber characteristics, allowing sustained maximum effort.
Magnus has a brachial artery diameter of 4.4 mm, which is exceptionally large. This allows greater blood perfusion to muscles, enabling faster removal of waste products and quicker delivery of oxygen and carbohydrates. This physiological advantage means he accumulates metabolites more slowly than average, maintaining a larger fraction of his one-rep strength across multiple repetitions. This explains why he appears less jacked but remains ultra capable.
Magnus explored a cave called "hell hole" featuring numerous tight squeezes, the "corkscrew" (the tightest squeeze), a 50-foot vertical drop, and the "Hall of Faces" with sculptures. The cave exploration demonstrates the extreme physical demands and mental fortitude required for such activities.
Magnus Midtbø is described as a Norwegian Viking king demonstrating exceptional physical capabilities across multiple domains including rock climbing, strength training, and extreme physical challenges.
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