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The Physical Fitness Assessment consists of a Body Composition Assessment (BCA) and a Physical Readiness Test (PRT), which includes a timed cardio event consisting of 1.5-mile (2.4 km) run/treadmill or a 500 yd (460 m) swim (or an alternate cardio consisting of 12-minutes on a stationary bike), timed curl-ups, and timed sit-ups. [1]
APFT Hints and Charts on MilitarySpot.com; The APFT Calculator with Built in Extended Scale; APFT Calculator; Army Fitness Calculator; Web Version of FM 21–20 – Physical Fitness Training and TC 3–22.20 – Army Physical Readiness Training; Online APFT Score Calculator and Scorecard Generator; APFT Charts on usmilitary.about.com
As part of the Fit to Fight program, the Air Force adopted a more stringent physical fitness assessment in 2004 and replaced the annual ergo-cycle (stationary bike) test that the Air Force had used for several years. [1] [2] Results are stored in the Air Force Fitness Management System (AFFMS) and accessible via the AF Portal. [3]
For this test, Marines choose to either perform pull-ups or push-ups. However, the maximum score is only attainable if pull-ups are chosen. The pull-ups may be done with either an overhand (pronated) grip or an underhand (supinated) "chin-up" grip.
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The British Armed Forces' 12 hour operational ration pack (ORP) is designed for patrolling for durations of 4–12 hours and for is suitable for remote guard posts, drivers and as a supplement to normal rations for where daily calorie expenditure is likely to exceed 6000 kcal (25,120 kJ), for instance, troops undergoing arduous duties.
The Harris–Benedict equation (also called the Harris-Benedict principle) is a method used to estimate an individual's basal metabolic rate (BMR).. The estimated BMR value may be multiplied by a number that corresponds to the individual's activity level; the resulting number is the approximate daily kilocalorie intake to maintain current body weight.
The US Navy has used several decompression models from which their published decompression tables and authorized diving computer algorithms have been derived. The original C&R tables used a classic multiple independent parallel compartment model based on the work of J.S.Haldane in England in the early 20th century, using a critical ratio exponential ingassing and outgassing model.