ABOUT US
TWO BROTHERS.
ONE PURPOSE.
Kyodai Perform was founded by brothers Sean and Cain Yoshiura to provide practical, individualised physical preparation for athletes, coaches and teams.
Working across high-performance rugby environments in Australia and Japan, we bring together different experiences, perspectives and coaching approaches.
Our goal is simple: provide high-quality support that can be applied in the real world.
Sean is currently based in Australia and working with the Wallaroos, while Cain is based in Japan and runs the strength and conditioning program at the Panasonic Wild Knights
Cain Yoshiura
STRENGTH & CONDITIONING COACH
PROFESSIONAL RUGBY, JAPAN
Sean Yoshiura
HIGH PERFORMANCE MANAGER
PROFESSIONAL RUGBY, AUSTRALIA
Qualification
Bachelor of Clinical Exercise Physiology
Queensland University of Technology
Cain is a strength and conditioning coach working in professional rugby in Japan. He is responsible for the planning and delivery of strength, speed, power and conditioning programs, alongside athlete testing, monitoring, GPS analysis and return-to-performance support.
His coaching approach focuses on building practical, adaptable systems that meet the needs of the individual athlete, fit within the training week and prepare players for the demands of competition.
Qualification
Bachelor of Exercise and Sports Science & Master of Research
Bond University
Sean is a high-performance manager and strength and conditioning coach based in Australia, with experience across professional rugby and athlete development. His work includes strength and conditioning delivery, physical preparation, athlete monitoring, performance analysis and the development of training systems for players at different stages of their careers.
His approach combines research, practical coaching experience and individualised programming to help athletes develop, perform consistently and remain prepared for the demands of competition.