2018-01-242018-01-24Unknownhttp://hdl.handle.net/2152.3/4849This image reflects William E. Thornton pushing on the MKII treadmill.William E. ThorntonMKIITreadmillExerciseSpace MedicineresearchpushingGym12.36 S84-43756 Gym, MKII in frame, W.T. pushing