title: Influence of morbid obesity on physical capacity, knee-related symptoms and overall quality of life: A cross-sectional study.
abstract: To evaluate the impact of morbid obesity on physical capacity, joint-related symptoms, and on the overall quality of life.
  Cross-sectional study carried out at a university hospital, enrolling 39 individuals admitted to a bariatric surgery service. Physical capacity was assessed by Six-Minute Walk Test (SMWT) and the Borg rating of perceived exertion (RPE). Knee-related symptoms were evaluated by Knee Injury and Osteoarthritis Outcome Score (KOOS) and the Lysholm Score. Quality of life was evaluated by Short Form 36 Health Questionnaire (SF-36).
  On SMWT, the mean distance walked was 374.1±107.5 m. The mean Borg score was 12.9±2.4. KOOS questionnaire found the following scores: pain (64.3±24), other symptoms (67.2±25.5), function in daily living (60.4±26.8), function in sport and recreation (28.5±32.2), knee-related quality of life (35.9±33.5), mean Lysholm scale score (55.3±25.4). SF-36 provided the following scores: physical functioning (41±27.4), physical role functioning (34.6±39.2), bodily pain (45.7±23.6), general health perceptions (63.1±26.2), vitality (53.5±12.1), social role functioning (52.6±29.3), emotional role functioning (41±44.9), mental health (55±27.7).
  Obesity led to significant loss of physical capacity, gait impairment, knee-related symptoms, and a negative impact on the overall quality of life.
authors.affiliation: MSc, Postgraduate Student, Department of Orthopedics and Traumatology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil.
authors.forename: Lilian Sarli
authors.initials: LS
authors.lastname: Tamura
authors.affiliation: PhD, Assistant Lecturer, Department of Surgery, Faculdade de Ciências Médicas, Unicamp, Campinas, SP, Brazil.
authors.forename: Everton
authors.initials: E
authors.lastname: Cazzo
authors.affiliation: PhD, Full Professor, Department of Surgery, Faculdade de Ciências Médicas, Unicamp, Campinas, SP, Brazil.
authors.forename: Elinton Adami
authors.initials: EA
authors.lastname: Chaim
authors.affiliation: PhD, Full Professor, Department of Orthopedics and Traumatology, Faculdade de Ciências Médicas, Unicamp, Campinas, SP, Brazil.
authors.forename: Sérgio Rocha
authors.initials: SR
authors.lastname: Piedade
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007718:Knee Injuries / Q000209:etiology; D007719:Knee Joint / Q000473:pathology; D008297:Male; D009767:Obesity, Morbid / Q000150:complications*; D020370:Osteoarthritis, Knee / Q000209:etiology*; D011788:Quality of Life; D011795:Surveys and Questionnaires; D000070857:Walk Test