Athletic IQ kit is made to order. Deadlines: 1st and 15th of each month. We aim to deliver within 2 weeks, subject to availability. Contact us if there is a delay. UK delivery is free. Fulfilled by Peter Spivey Ltd. Dismiss
- RPE (Rate of Perceived Exertion) — a subjective scale for how hard exercise feels.
- Threshold — an intensity point where contribution from anaerobic systems and lactate levels start to rise more steeply.
