Comment on "Should we reframe how we think about physical activity and sedentary behavior measurement? Validity and reliability reconsidered".
With great interest we read the article by Kelly et al. on the measurement of physical activity (PA) and sedentary behavior (SB) (Kelly P et al. Int J Behav Nutr Phys Act 13:(1) 32, 2016). We appreciate the invitation of the authors to provide feedback on their ideas and we take this opportunity to contribute to the discussion. Our main proposition is that this field can learn much from the field of quality of life research and the methodology developed for validating quality of life questionnaires.
Department of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, F-building MedFac, P.O. box 7057, 1007 MB, Amsterdam, The Netherlands. cb.terwee@vumc.nl.
Caroline B
CB
Terwee
Department of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Center, F-building MedFac, P.O. box 7057, 1007 MB, Amsterdam, The Netherlands.
L B
LB
Mokkink
Department of Public and Occupational Health and the EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands.
L M
LM
Hidding
Department of Public and Occupational Health and the EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands.
T M
TM
Altenburg
Department of Public and Occupational Health and the EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands.
M N
MN
van Poppel
Department of Public and Occupational Health and the EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands.
M J M
MJ
Chinapaw
D006801:Humans; D009043:Motor Activity; D011788:Quality of Life; D015203:Reproducibility of Results; D057185:Sedentary Behavior; D011795:Surveys and Questionnaires
Physical activity; Reliability; Sedentary behavior; Validity