Arming Health: Can Breaking up Restful Sitting Time With Upper Body Contractile Activity Regulate Metabolic Health.

Condition A is referred to as the 'sitting' condition. Here participants will remain seated throughout the whole of the 7 ½ hour test period (8am - 3:30pm). On arrival, participants will have a cannula (a small tube that allows us to take blood) inserted into their arm; this will stay in the arm and allow investigators to take regular blood samples throughout the day. Blood samples and blood pressure will be taken at 30, 60, 120 and 180 minutes after breakfast. Following this, a lunch meal will be provided and investigators will continue taking blood samples and blood pressure at 30, 60, 120 and 180 minutes after this lunch meal. In total, 10 blood samples will be taken over the 7 ½ hour testing period. There will also be a cognitive test in the morning and afternoon.

Condition B is the 'light activity breaks' condition. Participants will go through exactly the same process as condition A but will also be asked to do 5 minute bouts of light intensity arm ergometry on a desktop arm ergometer every 30 minutes following breakfast and lunch. In total they will do 12 five minute arm ergometry breaks throughout the 7 ½ hour test period (60 minutes of arm ergometry in total). In total 10 blood samples will be taken on the day.