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
- Energy surplus — more energy taken in than used.
- Energy deficit — less energy taken in than used.
- Metabolic adaptation — changes in energy expenditure in response to long-term energy deficit.
- Weight cycling — repeated cycles of losing and regaining weight.