2018-03-082018-03-08Unknownhttp://hdl.handle.net/2152.3/6739This image reflects a graph for PLT strength inflight changes for Skylab 4 crew members.PLT strength changesinflightexercise researchWilliam E. ThorntongraphSpace MedicineSkylab 4cybex9.15 SL-4, PLT strength changes, summary