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Introduction by Lt General Richard L Bohannon
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30 points activity aerobic Air Force American amount athletes average basic beats become begin benefit better blood blood vessels body calisthenics cardiac Category charts complete conditioning program consumption Cycle Cycle Cycle daily develop disease distance endurance energy especially exercise fact fitness five four getting give heart heart rate important improved increase it's Journ keep kind least less longer lungs maximum means measured miles minutes muscles nearly normal once oxygen pain patients percent performance physical pilots Poopers pressure problem produce reduce rest running showed smoking start started stress studies supply swimming thing tion tissue track training effect treadmill types usually Walk Walk Walk week weight Yards you're