title: Comparison of physical activity using questionnaires (leisure time physical activity instrument and physical activity at home and work instrument) and accelerometry in fibromyalgia patients: the Al-Ándalus project.
abstract: OBJECTIVE
  To compare the levels of physical activity (PA) assessed with questionnaires (Leisure Time Physical Activity Instrument [LTPAI], Physical Activity at Home and Work Instrument [PAHWI]) and accelerometry in patients with fibromyalgia; and to analyze the test-retest reliability of these questionnaires.
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  Local fibromyalgia association.
  
  
  METHODS
  Participants (N=99; 5 men) with fibromyalgia with a mean age of 50.2±9.5 years.
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  Participants carried an accelerometer for 1 week and completed the LTPAI and PAHWI twice (separated by a 1-wk interval). The LTPAI and PAHWI were summed to obtain overall values of PA.
  
  
  RESULTS
  Time spent in total, moderate, and moderate-vigorous PA was higher (P<.01) when assessed by the LTPAI and PAHWI compared with accelerometry. The Bland-Altman method showed an absence of agreement between the LTPAI and PAHWI and the accelerometer for moderate, moderate-vigorous, and total PA. The test-retest reliability for the workplace subscale and total score of the PAHWI showed high and moderate intraclass correlation coefficients (ICCs), respectively, but also manifested high SE of measurements (up to 179min/d). The LTPAI showed low to moderate ICCs and high SE of measurements (up to 79min/d). For the LTPAI and PAHWI, the ICCs for total activity across the population were low to moderate, and the Bland-Altman method confirmed this lack of agreement.
  
  
  CONCLUSIONS
  The LTPAI and PAHWI and the accelerometer differ greatly when assessing PA. Furthermore, the LTPAI and PAHWI did not show good levels of test-retest reliability. Therefore, the self-administered LTPAI and PAHWI show questionable usefulness to assess PA in populations with fibromyalgia.
authors.affiliation: Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain. Electronic address: vsegura@ugr.es.
authors.forename: Víctor
authors.initials: V
authors.lastname: Segura-Jiménez
authors.affiliation: Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.
authors.forename: Inmaculada C
authors.initials: IC
authors.lastname: Alvarez-Gallardo
authors.affiliation: Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Romero-Zurita
authors.affiliation: Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain; Department of Physiology, Faculty of Pharmacy, University of Granada, Granada, Spain.
authors.forename: Daniel
authors.initials: D
authors.lastname: Camiletti-Moirón
authors.affiliation: Department of Sports and Informatics, Section of Physical Education and Sports, Faculty of Sport, University Pablo de Olavide, Seville, Spain.
authors.forename: Diego
authors.initials: D
authors.lastname: Munguía-Izquierdo
authors.affiliation: Department of Physical Education, Faculty of Sciences Education, University of Cádiz, Cádiz, Spain.
authors.forename: Ana
authors.initials: A
authors.lastname: Carbonell-Baeza
authors.affiliation: Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.
authors.forename: Jonatan R
authors.initials: JR
authors.lastname: Ruiz
mesh_terms: D061725:Accelerometry; D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D005356:Fibromyalgia / Q000503:physiopathology*; D006801:Humans; D007899:Leisure Activities; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D014937:Work; D055815:Young Adult
keywords: Accelerometry; Fibromyalgia; Pain; Physical activity; Reliability of results