title: Characterization of the use of a cycle ergometer to assist in the physical therapy treatment of critically ill patients.
abstract: OBJECTIVE
  The objective of this study was to use a cycle ergometer to assess cardiorespiratory changes during active exercise and to verify patients' satisfaction with this type of activity.
  
  
  METHODS
  A single intervention involving active lower limb exercise was performed with a cycle ergometer (without load) for 5 minutes. The following variables were measured before, during and immediately after exercise: heart rate, blood pressure, respiratory rate, peripheral oxygen saturation and the Borg dyspnea scale score. Following the exercise, the patients answered a questionnaire to evaluate their satisfaction with this type of activity.
  
  
  RESULTS
  A total of 38 patients (65% male) with a mean age of 48 ± 16 years old participated in the study. Enrolled patients presented a sequential organ failure assessment (SOFA) score of 2 (0 - 5 scale). During the exercise, 16% of the patients used ventilation support and 55% of them were breathing at room air. A comparison of the initial and final values of the variables indicated increases in the heart rate (92 ± 17 beats/min vs. 95 ± 18 beats/min; p<0.05), the respiratory rate (19 ± 8 breaths/min vs. 23 ± 8 breaths/min; p<0.05) and the Borg dyspnea scale score (1.3 ± 1.8 vs. 2.8 ± 2.2; p<0.05). In addition, 85% of the patients reported enjoying the activity. Only 25% of the patients reported some discomfort, and 100% of the patients wanted to repeat this type of activity in future treatments.
  
  
  CONCLUSIONS
  During the cycle ergometer exercises, minor cardiorespiratory changes were observed in the patients. The evaluated patients reported high satisfaction with this type of activity.
authors.affiliation: Physical Therapy Service, Central Institute, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo - São Paulo, Brazil. ruy@usp.br
authors.forename: Ruy Camargo
authors.initials: RC
authors.lastname: Pires-Neto
authors.forename: Aná Luiza
authors.initials: AL
authors.lastname: Pereira
authors.forename: Camila
authors.initials: C
authors.lastname: Parente
authors.forename: Guadalupe Nery de
authors.initials: GN
authors.lastname: Sant'anna
authors.forename: Daniela Daguer
authors.initials: DD
authors.lastname: Esposito
authors.forename: Aline
authors.initials: A
authors.lastname: Kimura
authors.forename: Carolina
authors.initials: C
authors.lastname: Fu
authors.forename: Clarice
authors.initials: C
authors.lastname: Tanaka
mesh_terms: D000328:Adult; D001642:Bicycling / Q000502:physiology*; D001794:Blood Pressure / Q000502:physiology; D016638:Critical Illness; D004417:Dyspnea / Q000209:etiology; D016552:Ergometry; D005081:Exercise Therapy / Q000379:methods*; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D026741:Physical Therapy Modalities; D011795:Surveys and Questionnaires