Patients with acute spinal cord injury benefit from normocapnic hyperpnoea training.
BACKGROUND
Functional loss of respiratory muscles in persons with spinal cord injury leads to impaired pulmonary function and respiratory complications. In addition, respiratory complications are responsible for 50-67% of the morbidity in this population.


OBJECTIVE
To investigate the effects of normocapnic hyperpnoea training in acute spinal cord injury.


METHODS
Fourteen patients were randomized between control (sham) and an experimental normocapnic hyperpnoea training group. Vital capacity, maximal voluntary ventilation, respiratory muscle strength and endurance, respiratory complications and symptoms were evaluated before, after 4 and 8 weeks of training and after 8 weeks follow-up.


RESULTS
Maximal voluntary ventilation, respiratory muscle strength and endurance improved significantly in the experimental group compared with the control group (p < 0.05). Improvements in vital capacity tended to be different from the control group at 8 weeks of training. The Index of Pulmonary Dysfunction decreased after 4 weeks of training and respiratory complications were reported less frequently in the experimental group compared with the control group.


CONCLUSIONS
Normocapnic hyperpnoea training in patients with spinal cord injury improved respiratory muscle strength and endurance. Respiratory complications occurred less frequently after training.
Van Houtte
Siska
S
Department of Rehabilitation Sciences, Katholieke Universiteit Leuven, Faculty of Kinesiology and Rehabilitation Sciences, Leuven, Belgium.
Vanlandewijck
Yves
Y
Kiekens
Carlotte
C
Spengler
Christina M
CM
Gosselink
Rik
R
D000208:Acute Disease; D000328:Adult; D000368:Aged; D001945:Breathing Exercises; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010264:Paraplegia / Q000503:physiopathology / Q000534:rehabilitation; D010807:Physical Endurance / Q000502:physiology; D012123:Pulmonary Ventilation / Q000502:physiology; D011782:Quadriplegia / Q000503:physiopathology / Q000534:rehabilitation; D012132:Respiratory Muscles / Q000503:physiopathology*; D013119:Spinal Cord Injuries / Q000503:physiopathology / Q000534:rehabilitation*; D014797:Vital Capacity / Q000502:physiology; D014939:Work of Breathing / Q000502:physiology