Book your VO2 Max Test with TSI & Lactate Threshold online. Attend your appointment at our  Canvey Island or Leigh-on-Sea locations. Undergo the ultimate performance assessment with VO2 Max, TSI, and Lactate Threshold testing, guided by our expert team. Receive your definitive performance blueprint – the most comprehensive report and data analysis available. 

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Demand the Best. Unlock Your Ultimate Potential. The Theorem Metabolic Performance Blueprint Awaits.

Book Your VO2 Max, TSI & Lactate Threshold Test Now