ABOUT
INTRA PERFORMANCE GROUP
INTRA Performance Group is a specialist human performance advisory firm.
Founded and led by internationally recognised authority James Collins, INTRA draws on more than two decades of work at the highest levels of elite sport. We advise elite performers and organisations across sport, entertainment and business — helping exceptional individuals build a stronger, more sustainable foundation for long-term success.
You are at the centre of our process
Based in London, we lead a global network of trusted specialists across nutrition, psychology, physical preparation and recovery. Our interdisciplinary model is structured around the individual, recognising the complex environments in which elite performers operate. We work closely with inner teams, Chiefs of Staff, agents and executive support to embed change with minimal disruption.
Nutrition-first human performance
We operate a nutrition-first human performance model. For many elite performers, nutrition remains one of the most under-leveraged variables. Our approach establishes first principles across nutrition, physical preparation, sleep and recovery, psychology and environment (home, work, significant others) — creating the conditions for sustained performance and career longevity. Grounded in research and refined through applied practice, the INTRA methodology supports individuals and organisations operating under consistent pressure.
A deeper dive
Engagements begin with a structured lifestyle and performance analysis to define a clear starting point and an ideal future state. From there, we apply INTRA systems to implement measurable change. The process is iterative — testing, refining and building confidence over time.
INTRA advises elite performers and organisations operating at the highest level across sport, entertainment and business.
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Engagements are long-term and selective. If there is alignment, please submit an initial enquiry.