Lab 4 Astrand Rhyming Submaximal Cycle Ergometer Test Modified to Estimate VO2 max Estimating VO2 max A means of describing the cardiorespiratory endurance fitness level of an individual The relationship of power output to VO2 remains fairly constant By knowing power output the corresponding VO2 can be predicted with reasonable accuracy The proportion to which HR increases in comparison to power output or VO2 will vary between individuals based on fitness level Ability to Predict VO2 max Based on the fact that the heart pumps more efficiently and oxygen is used more readily for metabolism in individuals with higher VO2 max capabilities If two individuals are performing at the same power output requiring the same rate of oxygen consumption the individual with the higher VO2 max will tend to have a lower HR Astrand Rhyming Test Example Example If a 20 year old 154 pound male had an average HR of 150 bpm during the last two minutes of a 900 kgm min 1 power output 3 kg resistance at 50 rpm his values would be 1 preliminary VO2 max value from Table 4 1 3 2 L min 1 2 3 2 x 1 07 age correction factor Table 4 3 3 425 L min 1 3 VO2max 3425 mL min 1 70 kg 48 9 mL kg 1 min 1 Body weight 70 kg 4 Fitness category Table 4 4 excellent
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