Study investigating changes in Physical Activity in patients following recovery from colon cancer. We plan to use MVPA and sedentary bouts in our analysis, but need a MET value to refer to evidence base on survival. Any advice or references appreciated.
Hi Julie. I never use a MET analysis for physical activity assessment (an unusual point of view) because if you have two persons doing the same activity, the energy expenditure will be different (no matter if they have the same age, sex and BMI). I use Actigraph software but I disabled the energy expenditure analysis
I definetly agree with Marcelo Cano-Cappeellacci.
Try to use a) intensity of daily physical activity or b) a combination of intensity and duration given by Actigraph (Vector Magnitude Unit) as the variable indicating the magnitude of DPA .
Another idea for analysis is to use "the magnitude of improvement" in the variable the use as an indicator to DPA e.g. Changes in intensity (Delta)
I hope this could help.
And I think that duration at one intensity is a good indicator.
http://www.ncbi.nlm.nih.gov/pubmed/15105522
http://www.ncbi.nlm.nih.gov/pubmed/20142781
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