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Journal of the Korean Academy of Rehabilitation Medicine 2002;26(6):704-708.
The Relationships of Coughing to the Respiratory Muscle Strength and Pulmonary Compliance in Tetraplegic Patients.
Kang, Seong Woong , Ryu, Ho Hyun , Shin, Ji Cheol , Kim, Yong Rae , Kim, Jung Eun
1Department of Rehabilitation Medicine, Yonsei University College of Medicine, Korea. kswoong@yumc.yonsei.ac.kr
2Rehabilitation Institute of Muscular Disease, Yonsei University College of Medicine, Korea.
3Department of Rehabilitation Medicine, Pochon CHA University College of Medicine, Korea.
사지마비 환자에서 기침과 호흡근 근력 및 호흡기계 유순도와의 연관성
연세대학교 의과대학 재활의학교실 및 근육병 재활연구소, 1포천중문 의과대학 재활의학과
To analyze the factors influencing the capacity of cough, the relationships between maximal respiratory pressure, lung compliance, capacity of cough, and assisted cough techniques were evaluated in tetraplegics.
The vital capacity (VC) in seated and supine position, maximum insufflation capacity (MIC), maximum inspiratory (MIP) and expiratory (MEP) pressure in seated position were measured. Unassisted and assisted peak cough flow (PCF) at two different conditions (a volume assisted method by the mechanical insufflation [PCFmic] and the manual assistance by abdominal compression [MPCF]) were evaluated in 44 tetraplegic patients.
The mean value of VC in supine was greater than that of seated position (p<0.01). The MICs of the subjects were significantly higher than VCs in a same position (<0.01). Both volume and manual assisted method showed significantly higher PCF than unassisted PCF (p<0.01). MIP (r=0.53) correlated with UPCF as well as MEP (r=0.68), although MEP was better correlated with MPCF.
Generally the therapists apply manual pressure only to increase capacity of cough, which assist the expulsive phase. The results of this study showed that both inspiratory and expulsive phases should be assisted to enhance the effectiveness of cough. (J Korean Acad Rehab Med 2002; 26: 704-708)
Key Words: Tetraplegics, Maximal respiratory pressure, Compliance, Peak cough flow, Assisted cough


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