IRCCS E.Medea, Bosisio Parini (Lc), Italy.
Respir Physiol Neurobiol. 2010 Jul 31;172(3):184-91. doi: 10.1016/j.resp.2010.05.018. Epub 2010 May 25.
To investigate the effects of posture and gender on thoraco-abdominal motion and breathing pattern, 34 healthy men and women were studied by Opto-Electronic Plethysmography during quiet breathing in five different postures from seated (with and without back support) to supine position. Chest wall kinematics and breathing pattern were significantly influenced by position and gender. The progressively increased inclination of the trunk determined a progressive reduction of rib cage displacement, tidal volume, and minute ventilation and a progressive increase of abdominal contribution to tidal volume. Female subjects were characterized by smaller dimensions of the rib cage compartment and during quiet breathing by lower tidal volume, minute ventilation and abdominal contribution to tidal volume than males. The effect of posture on abdominal kinematics was significant only in women. The presence of a back support in seated position determined differences in breathing pattern. In conclusion, posture and gender have a strong influence on breathing and on chest wall kinematics.
为了研究体位和性别对胸腹部运动和呼吸模式的影响，本研究采用光体积描记法对 34 名健康男性和女性进行了研究，在 5 种不同体位（包括有和无背部支撑的坐姿，以及仰卧位）下进行安静呼吸。体位和性别显著影响胸壁运动学和呼吸模式。躯干倾斜度逐渐增加导致肋骨位移、潮气量和分钟通气量逐渐减少，而腹部对潮气量的贡献逐渐增加。女性的肋骨腔室尺寸较小，安静呼吸时潮气量、分钟通气量和腹部对潮气量的贡献均低于男性。体位对女性腹部运动学的影响显著。坐姿时背部支撑的存在会影响呼吸模式。总之，体位和性别对呼吸和胸壁运动学有很大影响。
