Body Composition and Lipid Metabolism at Rest and During Exercise: A Cross-Sectional Analysis.

"Participants will complete three study protocols 7 - 28 days apart which includes:~* 3 x main trial days (max. 150 mins) involving body composition analysis, indirect calorimetry, a blood sample, optional muscle and / or adipose tissue biopsies and a maximal cardiorespiratory fitness test.~* 2 x lifestyle monitoring periods (physical activity and diet) for the prior 7 days before each main trial day.~* Maintenance of habitual habits, dietary and physical activity behaviour patterns~We are observing biological / health parameters in a group of individuals who will be assessed under resting and exercising conditions. The current study does not involve an intervention."