What does it mean to build an unbreakable body — and perform at a high level for life, not just for a season?

In this episode of Spartan Leadership, host Josh Kosnick sits down with world-renowned strength coach, physical therapist, and injury-prevention expert Dr. John Rusin.

Dr. Rusin has worked with MLB All-Stars, NFL All-Pros, Olympic gold medalists, and world-record-holding powerlifters. Named one of Men’s Health’s “Top 50 Health & Fitness Experts,” he’s the founder of the Pain-Free Performance Specialist Certification (PPSC) — the fastest-growing fitness education system in the world, certifying over 20,000 professionals.

Together, Josh and John explore what it takes to achieve physical autonomy, why most people train too hard and too dumb, and how curiosity, humility, and discipline define not only great athletes but great leaders.

🔥 In This Episode

• Why physical autonomy is the foundation of leadership

• The dangers of early sports specialization

• How to distinguish pain from progress

• Building strength without sacrificing longevity

• The mindset behind sustainable success

• Turning personal struggle into purpose

Dr. John Rusin

• Pain-Free Performance → Buy on Amazon

• Train with Dr. Rusin → becomeunbreakable.com

• Coaching → drjohnrusincoaching.com

• Website → drjohnrusin.com

• Instagram → @drjohnrusin

• YouTube → @DrJohnRusin

Josh Kosnick

• Learn more → JoshKosnick.com

• Take the Life Quotient Assessment

• Join the Bridge Builder Mastermind

• Attend Bridge Builder Live

• Follow → @joshkosnick

Spartan Valor Foundation is dedicated to empowering veterans, military families, and survivors of child trafficking. Through strategic partnerships, we provide critical resources, advocacy, and hope for those who have sacrificed so much. Join us in making a difference—because no hero should stand alone.

🔗 Learn more: spartanvalor.org

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