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Built from the inside out

I'm Harris Kaltak, sports physiotherapist, rehab coach, former professional footballer and track&field athlete. I played 14 years of professional football across the Croatian and German leagues,  as a track athlete in the 100m, 200m and 400m and spent years watching injuries end careers that didn't need to end. That's why I started Iokale.

Built from the inside out; not by someone who studied sport from a textbook, but by someone who lived it. I know what a hamstring tear does to a footballer's confidence. I know what a botched rehab costs an athlete in race times and missed seasons. And I know what proper treatment looks like because I spent years needing it. Based in Amsterdam, I work with footballers, track athletes, and serious amateurs across injury rehab, return-to-sport, strength and conditioning and running gait analysis. 

  •  B.Sc. Physiotherapy - University of Applied Health Sciences, Zagreb

  •  Head Physiotherapist - Masters Hockey Nederland (World Cup Nottingham 2022)

  •  Pro Footballer & Track Athlete - Croatian HNS (NK Lokomotiva Zagreb), German DFB (VfB Homberg)

  •  Experienced Practitioner - Knee rehab, hamstring injuries & return-to-sport testing

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Amsterdam, Netherlands

© 2026 iokale - Rehab & Performance

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