I am writing a meta-analysis for my University dissertation and really struggling with the o2 consumption data which is mostly VO2 not VO2max. Can O2 consumption data from different research papers with varying exercise and exercise length be compared by looking at pre and post-exercise VO2 (not VO2max) if the change in value (difference between pre and post-exercise VO2) of VO2 is converted to relative VO2 for each group? I'm trying to find out which group in each study had an O2 consumption indicative of potentially better performance, but don't know how to actually compare the different types of measuring o2 consumption. Or do I need pick a set length of time for example o2 consumption difference from pre-exercise (start of test) to the exercise length at a set time of 30 minutes for the o2 consumption/vo2 (not vo2max) data points to be compared? I'm so confused, does this make any sense?!! The papers I have vary in exercise (cycling or running) but I'm doing a meta analysis and my question looks at endurance sport as a whole, I understand there may be many confounding factors with looking at different sports. Please help, I am having a nightmare!! Thank you for the content and support :).
@@VivoPhys I'll simplify it sorry haha: is relative VO2 (not VO2max) pre and post workout a better estimation of endurance performance over estimated relative VO2max from measured heart rates? And can this data be compared between different people? (Or if that makes no sense.... Can relative VO2 (not VO2max) measurements pre and post workout be a useful measure to predict endurance performance?) Thank you for the fast response!!
If I'm understanding you correctly, you want to compare relative VO2 at rest before exercise and at rest after exercise? Keep in mind everyone with normal physiology has a resting VO2 of about 3.5 mL/kg/min. Post exercise it might be slightly elevated due to EPOC, but that is determined by exercise intensity and duration.
@@VivoPhys Amazing this has been very useful! If I could be cheeky and ask something else if you have time to respond...do you have a different suggestion of a data point to focus on when trying to compare different peoples oxygen consumption in different papers that don't measure the VO2max in different types of physical activity (e.g. running and cycling) and length (e.g. 30 minutes long and 45 minutes long) of physical activity to standardise the data point to be compared between different people (to measure endurance performance) regardless of the variables in the physical activity test? Thanks so much again!
That's difficult. Perhaps you could calculate the estimated VO2 of the exercise intensity and look at heart rate at that intensity or RPE at that intensity.
Thank you very much
Can you give us a question for this topic l need to prepare to my exam?
I am writing a meta-analysis for my University dissertation and really struggling with the o2 consumption data which is mostly VO2 not VO2max.
Can O2 consumption data from different research papers with varying exercise and exercise length be compared by looking at pre and post-exercise VO2 (not VO2max) if the change in value (difference between pre and post-exercise VO2) of VO2 is converted to relative VO2 for each group? I'm trying to find out which group in each study had an O2 consumption indicative of potentially better performance, but don't know how to actually compare the different types of measuring o2 consumption. Or do I need pick a set length of time for example o2 consumption difference from pre-exercise (start of test) to the exercise length at a set time of 30 minutes for the o2 consumption/vo2 (not vo2max) data points to be compared? I'm so confused, does this make any sense?!!
The papers I have vary in exercise (cycling or running) but I'm doing a meta analysis and my question looks at endurance sport as a whole, I understand there may be many confounding factors with looking at different sports. Please help, I am having a nightmare!!
Thank you for the content and support :).
Sorry. I'm not sure what you are attempting to investigate.
@@VivoPhys I'll simplify it sorry haha: is relative VO2 (not VO2max) pre and post workout a better estimation of endurance performance over estimated relative VO2max from measured heart rates? And can this data be compared between different people?
(Or if that makes no sense.... Can relative VO2 (not VO2max) measurements pre and post workout be a useful measure to predict endurance performance?)
Thank you for the fast response!!
If I'm understanding you correctly, you want to compare relative VO2 at rest before exercise and at rest after exercise? Keep in mind everyone with normal physiology has a resting VO2 of about 3.5 mL/kg/min. Post exercise it might be slightly elevated due to EPOC, but that is determined by exercise intensity and duration.
@@VivoPhys Amazing this has been very useful! If I could be cheeky and ask something else if you have time to respond...do you have a different suggestion of a data point to focus on when trying to compare different peoples oxygen consumption in different papers that don't measure the VO2max in different types of physical activity (e.g. running and cycling) and length (e.g. 30 minutes long and 45 minutes long) of physical activity to standardise the data point to be compared between different people (to measure endurance performance) regardless of the variables in the physical activity test?
Thanks so much again!
That's difficult. Perhaps you could calculate the estimated VO2 of the exercise intensity and look at heart rate at that intensity or RPE at that intensity.
I appreciate your efforts, Keep going!
Thank you!
🙏🏼
great
I'm glad you liked it.