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About Jim Levy
Credentials
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Certified Personal Trainer through the National Strength and Conditioning Association (NSCA-CPT)
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Shotokan karate black belt
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Volunteer instructor for the weekly Karate & Fitness class at Braille Institute Los Angeles for blind and low-vision adults
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B.A. in Business and Japanese, Linfield University, McMinnville, Oregon
Jim has trained in Shotokan karate, weighted jump rope, and strength and conditioning for decades. He created JumpIron to combine weighted jump rope, non-sparring karate fundamentals, and dynamic and isometric resistance exercises in a comprehensive, full-body fitness program.
His letter, “Working out,” on progressive exercise training was published in the July 25th 2026 issue of The Economist.
Jim performing assisted Nordic hamstring curls at the park as part of his strength training. The exercise requires controlled technique and progressive development of hamstring strength.
Volunteer Experience at Braille Institute
Jim developed and launched the weekly Karate & Fitness class for blind and low-vision adults at Braille Institute Los Angeles in January 2024 and continues to lead it as a volunteer instructor.
This experience has sharpened Jim’s approach to precise verbal instruction, safe class organization, gradual progression, and adapting challenging exercises to a wide range of abilities.
JumpIron is an independent business and is not sponsored or endorsed by Braille Institute.
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