Objectives: The purpose of this study was to assess the validity of the ActiGraph GT3X+ (GT3X+) and the BodyMedia SenseWear Armband (SWA) to estimate energy expenditure (EE) during physical activity and field sport movements.
Design: Criterion validity.
Methods: Twenty-six active adults completed a single 90min session involving alternating intervals of exercise (5min) and recovery (10min).