PMID- 37647304
OWN - NLM
STAT- MEDLINE
DCOM- 20230901
LR  - 20230905
IS  - 1932-6203 (Electronic)
IS  - 1932-6203 (Linking)
VI  - 18
IP  - 8
DP  - 2023
TI  - The dilemma of physical activity questionnaires: Fitter people are less prone to 
      over reporting.
PG  - e0285357
LID - 10.1371/journal.pone.0285357 [doi]
LID - e0285357
AB  - Physical activity questionnaires (PAQs) are a popular method of monitoring 
      physical activity, although their validity is usually low. Descriptions of 
      physical activity levels in questionnaires usually rely on physical responses to 
      physical activity. Therefore, we hypothesised that the validity of PAQs would be 
      higher in the more physically fit group of participants. To test this, we 
      conducted a validation study with 179 adults whom we divided into three fitness 
      groups based on their cardiovascular fitness and age. Participants were measured 
      for one week using the UKK RM42 accelerometer and self-reported their physical 
      activity using IPAQ-SF, GPAQ, and EHIS-PAQ. We analysed the differences between 
      fitness groups in terms of validity for each PAQ using ANOVA. We also performed 
      an equivalence testing to compare the data obtained with the PAQs and the 
      accelerometers. The results showed a significant trend toward higher validity for 
      moderate to vigorous physical activity from the low to high fitness group as 
      assessed by GPAQ and IPAQ-SF (low, intermediate and high fitness group: 
      0.06-0.21; 0.26-0.29; 0.40, respectively). The equivalence testing showed that 
      all fitness groups overestimated their physical activity and underestimated their 
      sedentary behaviour, with the high fitness group overestimating their physical 
      activity the least. However, EHIS-PAQ was found to agree best with accelerometer 
      data in assessing moderate to vigorous physical activity, regardless of fitness 
      group, and had a validity greater than 0.4 for all fitness groups. In conclusion, 
      we confirmed that when using PAQs describing physical responses to physical 
      activity, participants' fitness should be considered in the interpretation, 
      especially when comparing results internationally.
CI  - Copyright: (c) 2023 Meh et al. This is an open access article distributed under the 
      terms of the Creative Commons Attribution License, which permits unrestricted 
      use, distribution, and reproduction in any medium, provided the original author 
      and source are credited.
FAU - Meh, Kaja
AU  - Meh K
AUID- ORCID: 0000-0002-2044-1255
AD  - Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia.
FAU - Sember, Vedrana
AU  - Sember V
AD  - Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia.
FAU - Soric, Maroje
AU  - Soric M
AD  - Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia.
AD  - Faculty of Kinesiology, University of Zagreb, Zagreb, Croatia.
FAU - Vaha-Ypya, Henri
AU  - Vaha-Ypya H
AUID- ORCID: 0000-0001-7537-2501
AD  - UKK-Institute, Tampere, Finland.
FAU - Rocha, Paulo
AU  - Rocha P
AUID- ORCID: 0000-0001-8971-5501
AD  - Portuguese Institute of Sport and Youth, Lisbon, Portugal.
FAU - Jurak, Gregor
AU  - Jurak G
AD  - Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20230830
PL  - United States
TA  - PLoS One
JT  - PloS one
JID - 101285081
SB  - IM
MH  - Adult
MH  - Humans
MH  - *Exercise
MH  - *Sedentary Behavior
MH  - Self Report
PMC - PMC10468079
COIS- I have read the journal's policy and the authors of this manuscript have the 
      following competing interests: Author Henri Vaha-Ypya is employee of the UKK 
      Institute which is the main owner of company UKK tervepalvelut that developed 
      RM42 accelerometers. This does not alter our adherence to PLOS ONE policies on 
      sharing data and materials
EDAT- 2023/08/30 18:41
MHDA- 2023/09/01 06:43
PMCR- 2023/08/30
CRDT- 2023/08/30 13:34
PHST- 2022/12/09 00:00 [received]
PHST- 2023/04/22 00:00 [accepted]
PHST- 2023/09/01 06:43 [medline]
PHST- 2023/08/30 18:41 [pubmed]
PHST- 2023/08/30 13:34 [entrez]
PHST- 2023/08/30 00:00 [pmc-release]
AID - PONE-D-22-33819 [pii]
AID - 10.1371/journal.pone.0285357 [doi]
PST - epublish
SO  - PLoS One. 2023 Aug 30;18(8):e0285357. doi: 10.1371/journal.pone.0285357. 
      eCollection 2023.