2018-01-242018-01-24Unknownhttp://hdl.handle.net/2152.3/4845This image reflects William E. Thornton pushing and walking on the MKII treadmill.TreadmillMKIIWilliam E. ThorntonpushingrunningExerciseresearchSpace MedicineGym12.32 S84-43752 Gym, MKII in frame, W.T. pushing