How do you calculate VO2 on a Douglas bag?
How do you calculate VO2 on a Douglas bag?
The conventional Douglas bag calculation for estimating O2 uptake (VO2) during exercise in normoxia and hyperoxia, VO2 = VE . (FIO2 . FEN2/FIN2 – FEO2), was tested against two other valid calculations: the Fick equation, VO2 = VI . FIO2 – VE .
What does the Douglas bag measure?
Douglas bag used to measure oxygen consumption in altitude research.
How do I test my VO2 max?
During a Vo2 max test, you wear a special face mask that measures the amount of air you breathe in and breath out while you exercise. You work at progressively harder intervals until you reach your limit. Typically, the test is performed while you ride a stationary bike or run on a treadmill.
How does a Douglas bag system work?
Historically, gas exchange was measured by the Douglas bag method. This involved the collection of exhaled air in large, impermeable canvas bags and subsequent measurement of gas fractions and expired volumes (4). Today, most computerized metabolic systems measure the ventilation rate on the expired side.
How does the VO 2 max test work?
The VO 2max test is the criterion measure of aerobic power in athletes. Described here is the method to measure VO 2max directly by indirect calorimetry. equipment required: Oxygen and carbon dioxide analyzers, heart rate monitor (optional) and a stopwatch. Appropriate ergometer ( treadmill, cycle, swim bench etc.).
How to lab report the Douglas bag procedure?
Lab Report The Douglas Bag Procedure 1 • The subject is seated on a suitably adjusted cycle ergometer and allowed to sit quietly for 5 minutes. During the… 2 • This is repeated with the subject exercising at an intensity of 60-Watts (light exercise). 3 • This is repeated with the subject exercising at 120-Watts (medium/heavy exercise). More
Can a cycle ergometer be used to test VO2 max?
However, the stable base of testing VO 2max on a cycle ergometer provides less movement and it is therefore easier for accurate gas collection, measurement of heart rate and RPE. It is also possible to use swimming exercise and arm-cranking.
What do you need for a Douglas bag?
This usually means so-called “Douglas Bags”, we suggest the 200 liter size for use in exercise. Each bag will need a number K-5311 closing valve. To prevent damage to the bag, they should be suspended. Either rig a suspension wire in your lab or consider our number 1195-R Suspension Rack.
