In this episode, Roy sits down with Yossi Montrose, founder of Performa Ball, who has spent more than two decades developing a coaching methodology built on controlled instability and stability ball training. Yossi traces his story from being born with a hearing problem and being bullied at school, through discovering the stability ball in a gym and the change he noticed in his posture, breathing and confidence, to a moment at a South African nature reserve where he stayed composed with a fully grown lion. He explains how sitting on a chair all day compares with sitting on a ball, how to choose the right size and quality, and how schools and offices have used it. Yossi links physical self-regulation to speaking under pressure, and the two discuss giving a talk while standing on the ball, a possible TEDx idea, his three-month program and his library of more than 3,500 exercises.
Timestamps
0:02 – Introducing Yossi Montrose and Performa Ball
0:56 – Yossi’s story: a hearing problem, bullying, finding the stability ball and a lion encounter in South Africa
7:28 – Choosing the right ball size for your height
8:36 – Why ball quality matters
9:10 – The ball Yossi recommends, and chair versus ball for back, energy and focus
12:12 – Bullying, schools and the ball in classrooms
14:00 – Replacing office chairs with balls: productivity and team energy
16:03 – Roy’s gym experience and why the ball feels natural
17:36 – Sitting position on the ball and building up over time
18:47 – A gym at your desk for busy entrepreneurs
19:33 – Movement, calories and weight management
20:55 – Is there a weight limit on the ball
21:23 – Using the ball on calls and on stage as a conversation starter
22:58 – A TEDx talk delivered standing on the ball
23:43 – Yossi’s programs: a three-month course combining mind and body
25:29 – Circulation, energy, sleep and mood
28:02 – Watching TV and eating on the ball
30:44 – Unexpected benefits: reflexes, balance and Yossi’s own recovery story
34:24 – Working the whole body in proportion
35:38 – Yossi’s experience helping people with back, shoulder and knee problems
36:46 – Why the ball is underestimated, and ADHD in schools
38:10 – Balls for children
39:26 – 3,500+ exercises and starting at any level
41:32 – Where to find Yossi
About Yossi Montrose
Yossi Montrose is the founder of Performa Ball and has spent more than two decades developing a distinctive physical coaching methodology using controlled instability and stability-ball training.
His work explores how physical control, balance, composure and adaptability influence the way people perform when the pressure is on. Rather than simply talking about confidence or presence, Yossi uses controlled instability to create situations where people have to physically organize themselves while moving, communicating and performing.
His work is particularly relevant to founders, executives, leaders, speakers and other high-performing professionals who need to remain composed, adaptable and effective when circumstances change.
Yossi brings a practical, experiential perspective to confidence, presence and performance, one that begins with the body and extends into how we lead, communicate and perform.
Connect with Yossi:
🌐 Website: https://www.performaball.com
💼 LinkedIn: https://www.linkedin.com/in/yossi-montrose
▶️ YouTube: https://www.youtube.com/@YossiMontrose
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