title: Comparison of prevalence of synovitis by ultrasound assessment in subjects exposed or not to self-reported physical overexertion: the Monday's synovitis.
abstract: OBJECTIVE
  To compare the proportion of synovitis detected by ultrasonographic study (USS) of the hands, in subjects with no rheumatologic known disease according to self-reported level of overexertion performed the day before.
  
  
  METHODS
  407 consecutive volunteers were enrolled in a twelve-month period and underwent an ultrasound assessment of the hand. All studies were performed on Monday or Friday. Subjects were grouped according to their self-reported overexertion carried out the day before. Presence or absence of ultrasonographic findings compatible with synovitis was compared between groups.
  
  
  RESULTS
  95.8% of those tested on Friday had made no overexertion the day before the study, while 30.2% of those assessed on Monday declared to have carried out an overexertion. Presence of carpal synovial hypertrophy, synovial fluid/effusion, and power-Doppler signal was statistically higher in subjects who carried out an overexertion the day before the study than the rest of subjects when the dominant hand was assessed. Globally, presence of any synovitis ultrasonographic finding was statistically higher in subjects who were studied on Monday than Friday (34.9% versus 12.1%) and in subjects who self-reported an overexertion the day before compared to the rest of subjects (47.7 versus 11.5%).
  
  
  CONCLUSIONS
  In general, we recommend performing the USS as many days as possible after the most recent overexertion.
authors.affiliation: Rheumatology Department, University Hospital Ramón y Cajal, Carretera de Colmenar Viejo, Km 9,1, 28034 Madrid, Spain.
authors.forename: C A
authors.initials: CA
authors.lastname: Guillén Astete
authors.affiliation: Rheumatology Department, University Hospital Ramón y Cajal, Carretera de Colmenar Viejo, Km 9,1, 28034 Madrid, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Boteanu
authors.affiliation: Rheumatology Department, University Hospital Ramón y Cajal, Carretera de Colmenar Viejo, Km 9,1, 28034 Madrid, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Zea Mendoza
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006225:Hand / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D018763:Muscle Fatigue; D010808:Physical Examination; D005082:Physical Exertion; D011446:Prospective Studies; D057566:Self Report; D012720:Severity of Illness Index; D013585:Synovitis / Q000175:diagnosis* / Q000000981:diagnostic imaging* / Q000503:physiopathology; D013997:Time Factors; D014463:Ultrasonography; D014955:Wrist Joint / Q000000981:diagnostic imaging