Karl Zelik

Professor @VanderbiltU. Co-Founder & Chief Scientist @HeroWearExo. No longer active on X. Find me at: or

[Karl Zelik @KarlZelik]

🚨 Pioneering new peer-reviewed study demonstrates that back #exosuits can simultaneously increase lifting endurance and reduce injury risk. Key exosuit results:

✅ Lifting endurance increased by 28-75%
✅ Cumulative back damage decreased by 27–93%

[Karl Zelik @KarlZelik]

Video: https://t.co/u7MEuA95XX

[Karl Zelik @KarlZelik]

💡 What are indirect costs on federal research grants? And what are they NOT?!

[Karl Zelik @KarlZelik]

📍 Frankly, even if you think you understand what indirect costs are, it's probably worth setting aside any preconceptions and watching this informational video. You'll probably learn something. I certainly did.

[Karl Zelik @KarlZelik]

🎯 Want to cut through the hype and evaluate exos like a pro?! This article is a treasure trove of actionable information to help vet workplace exos. Check it out or share it with someone who can benefit.

https://t.co/R78cnTHUWa

[Karl Zelik @KarlZelik]

🚨 Choosing the Right Exoskeleton: A Guide for Safety Professionals

👏🏽 This new EH&S article is an MUST READ for anyone considering workplace exoskeletons. Do yourself a favor and bookmark this. Or just print it out.

#exoskeletons #ergonomics #safetytech #MSDs

[Karl Zelik @KarlZelik]

💡 The questions about 'Assistance,' 'Sizing,' and 'Real-World Evidence' are golden. But it's the ones near the end about 'Training, Support, and Scalability' that are often overlooked and truly next-level!

[Karl Zelik @KarlZelik]

👇🏽 I don't want to try to paraphrase the author's nuanced experience, so I recommend just checking out the article linked below. It's a 7-minute read.

https://t.co/LiUbLRBalb

[Karl Zelik @KarlZelik]

💡 Interesting read on one person’s experience with a new recreational exoskeleton.

#exoskeletons #wearabletech #wearablerobotics

[Karl Zelik @KarlZelik]

👍🏽 Mark Wilson candidly discusses his first impressions—including pros and cons—when using this exo for various daily life activities like walking, running, and stairs.

[Karl Zelik @KarlZelik]

📖 If you're interested in this topic, then I recommend checking out this textbook by McGill. It's one of a few that I've found to be really insightful and thought-provoking.

https://t.co/vlx9o1Po3e

[Karl Zelik @KarlZelik]

👀 Given the ~7 cm moment arm of the erector spinae muscles about the spine, this equates to about 400 lbs of force (1800 N) going through the low back muscles. Just to bend forward. Not even to lift something.

[Karl Zelik @KarlZelik]

👍🏽 But understanding this phenomenon is one of the keys to understanding the function and impact of occupational #exoskeletons and #exosuits, and other #ergonomics controls that help reduce MSD risks associated with prolonged or repetitive bending.