Inspiratory muscle training improves aerobic capacity and pulmonary function in patients with ankylosing spondylitis: a randomized controlled study

Objective: To evaluate the impact of inspiratory muscle training on aerobic capacity and pulmonary function in patients with ankylosing spondylitis. Design: Randomized controlled study. Setting: Rheumatic Rehabilitation Centre. Subjects: A total of 54 ankylosing spondylitis patients, all males, were...

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Published in:Clinical rehabilitation 2016-04, Vol.30 (4), p.340-346
Main Authors: Drăgoi, Răzvan-Gabriel, Amaricai, Elena, Drăgoi, Mihai, Popoviciu, Horatiu, Avram, Claudiu
Format: Article
Language:English
Subjects:
Aerobic exercise
Ankylosing spondylitis
Breathing Exercises
Carbon dioxide
Exercise
Exercise Tolerance
Fitness training programs
Home based
Humans
Intervention
Male
Males
Men
Middle Aged
Oxygen
Physical fitness
Pulmonary Ventilation
Rehabilitation
Resting
Spondylitis, Ankylosing - physiopathology
Spondylitis, Ankylosing - therapy
Uptake
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Summary:Objective: To evaluate the impact of inspiratory muscle training on aerobic capacity and pulmonary function in patients with ankylosing spondylitis. Design: Randomized controlled study. Setting: Rheumatic Rehabilitation Centre. Subjects: A total of 54 ankylosing spondylitis patients, all males, were randomized to a conventional exercise training associated with an inspiratory muscle training group, or to a conventional exercise training group. Interventions: Group 1 (27 patients) performed eight weeks of conventional exercise training (supervised weekly group sessions followed by a home-based exercise programme) associated with inspiratory muscle training sessions. Group 2 (27 patients) received eight weeks of conventional exercise training only. Main measures: Resting pulmonary function (forced vital capacity − FVC, forced expiratory volume in one second − FEV1); effort ventilatory efficiency (lowest ventilatory equivalent ratio for oxygen and carbon dioxide – VE/VO2 and VE/VCO2) and aerobic capacity (peak oxygen uptake – VO2peak) were assessed at baseline and after eight weeks of exercise-based intervention. Results: After eight weeks follow-up, patients in Group 1 had a significant increased chest expansion and VO2peak compared with Group 2 (3.6 ±0.8 cm vs. 3.2 ±0.5 cm, P = 0.032; 2.0 ±0.5 l/min vs. 1.8 ±0.3 l/min, P = 0.033). There were no significant differences of spirometric measurements, except FVC which significantly improved in patients who performed inspiratory muscle training (82.7 ±5.1% vs. 79.5 ±3.5%, P = 0.014). VE/VCO2 also improved significantly in Group 1 (26.6 ±3.6 vs. 29.2 ±4.7, P = 0.040). Conclusions: Ankylosing spondylitis patients who performed eight weeks of inspiratory muscle training associated to conventional exercise training had an increased chest expansion, a better aerobic capacity, resting pulmonary function and ventilatory efficiency than those who performed conventional exercise training only.
ISSN:0269-2155
1477-0873
DOI:10.1177/0269215515578292