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Expert in Spirometry

Instructions for an expiratory maneuver


Ref. 1 - Standing or sitting position does not make a difference

  1. Pierson DJ, Nick NP, Petty TL. A comparison of spirometric values with subjects in standing and sitting positions. Chest 1976; 70: 17-20.
  2. Townsend MC. Spirometric forced expiratory volumes measured in standing versus the sitting posture. Am Rev Respir Dis 1984; 30-123-124. (According to this author in middle-aged subjects the VC is about 70 mL smaller in the sitting than in the standing posture).
  3. Lalloo UG, Becklake MR, Goldsmith CM. Effect of standing versus sitting position on spirometric indices in healthy subjects. Respiration 1991; 58: 122-125.
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