Military PersonnelExercise TestExercise TherapyExerciseExercise TolerancePhysical ExertionPhysical Education and TrainingResistance TrainingPhysical EnduranceOxygen ConsumptionInservice TrainingMuscle, SkeletalPhysical FitnessHeart RateRunningWeight LiftingRestAnaerobic ThresholdBicyclingTime FactorsMuscle Strength