The Applied Exercise Science Lab is seeking sedentary male subjects aged 18-55 to study passive cycling (involves a stationary bicycle with a rotating motor - the bicycle pedals for you). The experiment will consist of four separate sessions each lasting 4 hrs. Benefits of participating include: body composition (% body fat), fitness assessment, bone density, glucose tolerance assessment and determination of caloric expenditure. You will be paid $160 for study completion. Interested? Email: James.Peterman@colorado.edu.