Sprint: With assistance from Flight Engineer (FE)-3 Swanson, Commander (CDR) Wakata took data for his Return-7 days ultrasound Sprint session. Sprint evaluates the use of high intensity, low volume exercise training to minimize loss of muscle, bone, and cardiovascular function in ISS crewmembers during long-duration missions. Ultrasound scans are on FD 14, 30, 60, 90, …