Integrated Resistance and Aerobic Training Study (Sprint) Ultrasound: Kelly, with Padalka assisting, configured video, Ultrasound 2 machine, and donned the calf and thigh reference guides for his Flight Day 120 Sprint Ultrasound. Kelly then performed thigh and calf scans with guidance from the Sprint ground team. Ultrasound scans are used to evaluate spaceflight-induced changes in …




