Nozoe Masafumi, Mase Kyoshi, Tsutou Akimitsu
Department of Rehabilitation, Hyogo College of Medicine Sasayama Medical Center Kurooka 5, Sasayama, Hyogo, 669-2321 Japan ; Division of Preventive Health Sciences, Department of Community Health Sciences, Faculty of Health Sciences, Kobe University Graduate School of Health Sciences.
Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University.
J Jpn Phys Ther Assoc. 2011;14(1):12-8. doi: 10.1298/jjpta.Vol14_002.
The purpose of this study is to investigate the regional chest wall volume changes during various breathing maneuvers in normal men with an optical reflectance system (OR), which tracks reflective markers in three dimensions.
Chest wall volume was measured by the OR system [VL(CW)], and lung volume was measured by hot wire spirometry [VL(SP)] in 15 healthy men during quiet breathing (QB), during breathing at a rate of 50 tidal breaths/min paced using a metronome (MT: metronome-paced tachypnea), and during a maximal forced inspiratory and expiratory maneuver (MFIE maneuver).
There were few discrepancies between VL(CW) and VL(SP) for QB and MT. In the MFIE maneuver, however VL(CW) was often underestimated compared with VL(SP), particularly during forced maximal expiration, because of pulmonary rib cage volume changes. Furthermore, the regional chest wall volume changes were affected by breathing maneuver alternation. In the pulmonary and abdominal rib cage, inspiratory reserve volume was larger than expiratory reserve volume, respectively, and in the abdomen, expiratory reserve volume was larger than inspiratory reserve volume.
Alternation of breathing maneuvers affects regional chest wall volume changes.
本研究旨在利用光学反射系统（OR）研究正常男性在各种呼吸动作过程中的胸壁局部容积变化，该系统可在三维空间中追踪反射标记物。
在15名健康男性安静呼吸（QB）、使用节拍器以每分钟50次潮气量呼吸的速率呼吸（MT：节拍器控制的呼吸急促）以及最大用力吸气和呼气动作（MFIE动作）过程中，通过OR系统测量胸壁容积[VL（CW）]，并通过热线肺活量计测量肺容积[VL（SP）]。
对于QB和MT，VL（CW）和VL（SP）之间几乎没有差异。然而，在MFIE动作中，由于肺胸廓容积变化，与VL（SP）相比，VL（CW）常常被低估，尤其是在用力最大呼气期间。此外，呼吸动作的交替会影响胸壁局部容积变化。在肺胸廓和腹胸廓中，吸气储备容积分别大于呼气储备容积，而在腹部，呼气储备容积大于吸气储备容积。
呼吸动作的交替会影响胸壁局部容积变化。
