- Young adults, aged 18-35
- Inactive older adults, aged over 50, who do not take part in any sport or exercise training.
- Lifelong physically activity older adults, aged over 50, who train for a specific sport for 3-6 hours per week.
You must also be free from cardiovascular, respiratory, musculoskeletal and neurological conditions, be a non-smoker, not taking daily medication or suffering from long-COVID.