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Article: Kinematics of the chest cage and spine during breathing in healthy individuals and in patients with adolescent idiopathic scoliosis

TitleKinematics of the chest cage and spine during breathing in healthy individuals and in patients with adolescent idiopathic scoliosis
Authors
Issue Date1999
PublisherLippincott, Williams & Wilkins. The Journal's web site is located at http://www.spinejournal.com
Citation
Spine, 1999, v. 24 n. 13, p. 1310-1315 How to Cite?
AbstractStudy Design. The lung function test by a Plethysmograph enabled calculations to be made of the total lung capacity and vital capacity. A Motion Analysis System (Elite, BTS Inc., Milano Italy) was used to observe and record chest cage and spinal movements and as to correlate lung function with the chest cage and spine kinematics. Objectives. To determine the three- dimensional kinematics and the shape and size changes of the chest cage and thoracic spine motion during deep breathing in healthy and scoliotic individuals. Summary and Background Data. Lateral flexion plus rotation of the involved vertebrae around a vertical axis causing a decrease in lung function is the main disfigurement of scoliosis. Reports show that even after spinal fusion, reduced vital capacity associated with an increased residual volume are detected. Factors such as angle of scoliosis, length of the spinal column involved, and duration of the deformity influence pulmonary function but do not significantly affect its reduction. Mechanical inefficiency during breathing has not been studied. Methods. Three-dimensional kinematics of the chest cage and spine during breathing were studied in 41 scoliotic patients and in 20 healthy individuals. Three-dimensional chest cage motions relative to the spine and thoracic spine motions relative to T12 were calculated. To examine stiffness of the spine, lateral bending angles were calculated. The lung function test, which including spirometry and lung subdivision, also was performed for the scoliotic patients. Results. Significant differences (P < 0.05) were found in the movements of the upper level of the chest cage in anteroposterior and vertical directions, ranging from 16.7 to 28.6 mm in healthy individuals and from 12.1 to 24.2 mm in scoliotic patients. The thoracic spine displayed two-dimensional movements posteriorly and vertically during breathing, whereas less movement was seen in scoliotic patients. In addition, overall the scoliotic spine showed signs of stiffness in lateral bending. Conclusions. The range of movement of the chest cage and spine is more limited in the scoliotic cases. This overall stiffness of the chest cage and the spine may contribute to the mechanical inefficiency and impairment of pulmonary function found in scoliotic patients.
Persistent Identifierhttp://hdl.handle.net/10722/79403
ISSN
2015 Impact Factor: 2.439
2015 SCImago Journal Rankings: 1.459
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLeong, JCYen_HK
dc.contributor.authorLu, WWen_HK
dc.contributor.authorLuk, KDKen_HK
dc.contributor.authorMchorthen_HK
dc.contributor.authorKarlberg, EMen_HK
dc.date.accessioned2010-09-06T07:54:18Z-
dc.date.available2010-09-06T07:54:18Z-
dc.date.issued1999en_HK
dc.identifier.citationSpine, 1999, v. 24 n. 13, p. 1310-1315en_HK
dc.identifier.issn0362-2436en_HK
dc.identifier.urihttp://hdl.handle.net/10722/79403-
dc.description.abstractStudy Design. The lung function test by a Plethysmograph enabled calculations to be made of the total lung capacity and vital capacity. A Motion Analysis System (Elite, BTS Inc., Milano Italy) was used to observe and record chest cage and spinal movements and as to correlate lung function with the chest cage and spine kinematics. Objectives. To determine the three- dimensional kinematics and the shape and size changes of the chest cage and thoracic spine motion during deep breathing in healthy and scoliotic individuals. Summary and Background Data. Lateral flexion plus rotation of the involved vertebrae around a vertical axis causing a decrease in lung function is the main disfigurement of scoliosis. Reports show that even after spinal fusion, reduced vital capacity associated with an increased residual volume are detected. Factors such as angle of scoliosis, length of the spinal column involved, and duration of the deformity influence pulmonary function but do not significantly affect its reduction. Mechanical inefficiency during breathing has not been studied. Methods. Three-dimensional kinematics of the chest cage and spine during breathing were studied in 41 scoliotic patients and in 20 healthy individuals. Three-dimensional chest cage motions relative to the spine and thoracic spine motions relative to T12 were calculated. To examine stiffness of the spine, lateral bending angles were calculated. The lung function test, which including spirometry and lung subdivision, also was performed for the scoliotic patients. Results. Significant differences (P < 0.05) were found in the movements of the upper level of the chest cage in anteroposterior and vertical directions, ranging from 16.7 to 28.6 mm in healthy individuals and from 12.1 to 24.2 mm in scoliotic patients. The thoracic spine displayed two-dimensional movements posteriorly and vertically during breathing, whereas less movement was seen in scoliotic patients. In addition, overall the scoliotic spine showed signs of stiffness in lateral bending. Conclusions. The range of movement of the chest cage and spine is more limited in the scoliotic cases. This overall stiffness of the chest cage and the spine may contribute to the mechanical inefficiency and impairment of pulmonary function found in scoliotic patients.en_HK
dc.languageengen_HK
dc.publisherLippincott, Williams & Wilkins. The Journal's web site is located at http://www.spinejournal.comen_HK
dc.relation.ispartofSpineen_HK
dc.subject.meshAdolescenten_HK
dc.subject.meshAdulten_HK
dc.subject.meshBiomechanicsen_HK
dc.subject.meshChilden_HK
dc.subject.meshFemaleen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMaleen_HK
dc.subject.meshPredictive Value of Testsen_HK
dc.subject.meshRange of Motion, Articular - physiologyen_HK
dc.subject.meshRespirationen_HK
dc.subject.meshRespiratory Function Testsen_HK
dc.subject.meshScoliosis - physiopathologyen_HK
dc.subject.meshThoracic Vertebrae - physiologyen_HK
dc.subject.meshThorax - physiologyen_HK
dc.subject.meshVideo Recordingen_HK
dc.titleKinematics of the chest cage and spine during breathing in healthy individuals and in patients with adolescent idiopathic scoliosisen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0887-9869&volume=24&issue=13&spage=1310&epage=1315&date=1999&atitle=Kinematics+of+the+chest+cage+and+spine+during+breathing+in+healthy+individuals+and+in+patients+with+adolescent+idiopathic+scoliosisen_HK
dc.identifier.emailLu, WW:wwlu@hku.hken_HK
dc.identifier.emailLuk, KDK:hcm21000@hku.hken_HK
dc.identifier.authorityLu, WW=rp00411en_HK
dc.identifier.authorityLuk, KDK=rp00333en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1097/00007632-199907010-00007en_HK
dc.identifier.pmid10404572-
dc.identifier.scopuseid_2-s2.0-0033169106en_HK
dc.identifier.hkuros48834en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033169106&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume24en_HK
dc.identifier.issue13en_HK
dc.identifier.spage1310en_HK
dc.identifier.epage1315en_HK
dc.identifier.isiWOS:000081171300007-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLeong, JCY=35560782200en_HK
dc.identifier.scopusauthoridLu, WW=7404215221en_HK
dc.identifier.scopusauthoridLuk, KDK=7201921573en_HK
dc.identifier.scopusauthoridMchorth=15035952200en_HK
dc.identifier.scopusauthoridKarlberg, EM=6602255610en_HK

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