alexa Resistive inspiratory muscle training in sleep-disordered breathing of traumatic tetraplegia.
Orthopaedics

Orthopaedics

Orthopedic & Muscular System: Current Research

Author(s): Wang TG, Wang YH, Tang FT, Lin KH, Lien IN

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Abstract OBJECTIVE: To assess the effect of resistive inspiratory muscle training (RIMT) on the static pulmonary function and sleep-induced breathing disorder of individuals with chronic cervical cord injury. DESIGN: Before-after training. SETTING: Home-setting training program. PATIENTS: Fourteen complete traumatic tetraplegic patients (12 men, 2 women; mean age, 41.1 +/- 14y; range, 19-56y) injured for more than 6 months. INTERVENTION: Subjects participated in a 6-week RIMT program for 15 minutes twice daily at a training intensity of 60\% of maximum inspiratory pressure (MIP). The participants were reevaluated at the end of 6-week training. MAIN OUTCOME MEASURES: Lung volume, peak expiratory flow (PEF), MIP, and maximum expiratory pressure (MEP) were measured by using a spirometry and inspiratory force meter, respectively. Capnography was used to monitor nocturnal pulse oxyhemoglobin saturation (SpO(2)) and end-tidal carbon dioxide tension level (ETCO(2)) of the patients. RESULTS: The maximum voluntary ventilation (MVV) and MIP of individuals with chronic cervical cord injury substantially improved after RIMT. MIP increased from -68.7 +/- 27.4cmH(2)O to -77.3 +/- 24.0cmH(2)O and MVV rose from 62.7 +/- 33.2L to 73.4 +/- 31.3L (P <.05). Despite increasing from 3.5 +/- 1.8L/s to 4.0 +/- 1.7L/s, PEF was statistically insignificant. For the individuals with improved MIP, the duration of ETCO(2) greater than 48mmHg reduced from 2.2\% +/- 3.3\% to 1.0\% +/- 2.0\% of total sleep time (P =.05) and that of SpO(2) less than 90\% significantly declined from 1.8\% +/- 2.8\% to 1.3\% +/- 2.4\% of total sleep time (P <.05). CONCLUSION: These findings suggest that RIMT can enhance the respiratory muscle strength and endurance of chronic tetraplegia and further ameliorate the sleep-induced breathing disorder. Therefore, RIMT is suggested as a home program for patients with sleep-disordered breathing. Copyright 2002 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation
This article was published in Arch Phys Med Rehabil and referenced in Orthopedic & Muscular System: Current Research

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