Answer :
The relative VO2max of the 30-year-old, 156 lb female is 41.03 ml/kg/min, and the work rate of the assessment was 75.6 Watts.
The relative VO2max is a measure of the maximum oxygen consumption per unit of body weight and is calculated by dividing the absolute VO2max by the individual's body weight. In this case, the absolute VO2max is 1.8 L/min. To calculate the relative VO2max, we need to convert body weight from pounds to kilograms, as the standard unit for VO2max is ml/kg/min.
The formula to convert pounds to kilograms is weight (kg) = weight (lb) / 2.2046. Therefore, the weight of the individual in kilograms would be 156 lb / 2.2046 ≈ 70.76 kg. Now, to find the relative VO2max, we use the formula: VO2max relative (ml/kg/min) = VO2max absolute (L/min) / body weight (kg), which gives us 1.8 L/min / 70.76 kg ≈ 0.0255 L/kg/min. To convert this to ml/kg/min, we multiply by 1000, resulting in a relative VO2max of approximately 25.5 ml/kg/min.
Now, to find the work rate in Watts, we use the formula: Work rate (Watts) = VO2 (L/min) × 1000 / 5, where 1000 is used to convert from L/min to ml/min, and 5 is the oxygen uptake in ml per 1 Watt of work rate. Plugging in the given VO2max of 1.8 L/min, we get 1.8 L/min × 1000 / 5 = 360 ml/min, which is equal to 360 Watts (since 1 Watt = 1 ml/min). So, the work rate of the assessment was 360 Watts.
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The relative VO2max is a measure of a person's maximal oxygen consumption (VO2max) relative to their body weight. It is calculated by dividing the absolute VO2max (in liters per minute) by the person's body weight (in kilograms). The relative VO2max for this individual is approximately 0.025 L/min/kg.
To find the relative VO2max for the given individual, we need to convert her weight from pounds to kilograms. 156 pounds is approximately 70.7 kilograms. Next, we divide her absolute VO2max of 1.8 L/min by her body weight of 70.7 kg:
Relative VO2max = Absolute VO2max / Body weight
Relative VO2max = 1.8 L/min / 70.7 kg
Now, let's calculate the relative VO2max:
Relative VO2max ≈ 0.025 L/min/kg
So, the relative VO2max for this individual is approximately 0.025 L/min/kg.
Moving on to the second part of the question, the Astrand-Rhyming cycle ergometer assessment measures the workload performed during the test in watts.
The workrate in watts for this assessment is not directly provided in the question. We need additional information to calculate it, such as the duration of the test or the workload protocol used. Without this information, it is not possible to determine the workrate in watts.The relative VO2max for the individual is approximately 0.025 L/min/kg, but the workrate in watts cannot be determined without more information about the duration or protocol of the Astrand-Rhyming cycle ergometer assessment.
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