Countermeasures System (CMS) Periodic Fitness Evaluation (PFE): Flight Engineer (FE)-5 Mastracchio with assistance from FE-3 Hopkins, performed his PFE today. PFEs monitor crewmembers’ overall fitness levels, to ensure that cardiovascular and musculoskeletal health and performance is satisfactory. The activity consists of performing a graded exercise test on the Cycle Ergometer with Vibration Isolation and Stabilization …



