True Fitness 550ZTX manual Mets

		APPENDIX C - METS EXPLANATION AND FORMULAS
	METS	The MET is a unit of exercise measurement that takes into
EXPLANATION		account body weight. Since energy expenditure in a weight-
AND FORMULAS		bearing exercise such as running, walking, or stairclimbing is
		directly proportional to body weight, the formulas to calculate
		METs are a bit simpler than for, say, an exercise bike. For
		example, 7 mph running is always 11.7 METs, no matter who
		you are.
		A MET is defined as 3.5 ml/min/kg of oxygen usage by the
		body, where
		ml is milliliters, the actual measured volume of gaseous
		oxygen
		min is minutes
		kg is bodyweight in kilograms
		This energy consumption rate corresponds to about 72
		calories per hour for a 150-pound person, which approximates
		the average basal metabolic rate of the general population.
		The best formulas for treadmill energy expenditure also use
		oxygen usage by the body, or VO2. The two formulas are:
		walking VO2 = (2.68 * speed) + (0.48 * speed * incline) + 3.5
		running VO2 = (5.36 * speed) + (0.24 * speed * incline) + 3.5
		To get METs, divide the result by 3.5.
		(Noted exercise physiologist David Costill's speed constants
		for walking and running are 3.06 and 4.86, respectively.)

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