Benefits of physical training in patients with idiopathic or end-stage sarcoidosis-related pulmonary fibrosis: a pilot study

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Bert Strookappe
Marjon Elfferich
Jeff Swigris
Ad Verschoof
Johny Veschakelen
Ton Knevel
Marjolein Drent

Keywords

exercise limitation, physical training, rehabilitation, pulmonary fibrosis, IPF, sarcoidosis

Abstract

Background: The natural history of disease in patients with stage IV (fibrotic) sarcoidosis may mirror that of patients with idiopathic pulmonary fibrosis (IPF). Both are bothered by progressive dyspnea, exercise limitation and fatigue. Objective: To establish whether patients suffering from pulmonary fibrosis might benefit from a physical training program. Study design: Twenty-four eligible patients referred to the out-patient clinic of the ild care expertise team of Hospital Gelderse Vallei, Ede, The Netherlands between November 2012 and November 2013 were included in this observational pilot study of a 12-week physical training program. Outcomes, including exercise capacity, skeletal muscle strength, lung function and fatigue were assessed at two time points: 1) baseline; and 2) after completion of a 12-week physical training program. Results: At baseline, the percentage predicted DLCO, FVC, FEV1 and exercise capacity (assessed by six-minute walking distance (6MWD) or maximal oxygen uptake) was reduced in both groups. After program completion, exercise capacity improved (>10% improvement 6MWD) in 13 subjects (54.2%): 7 with IPF and 6 with sarcoidosis subjects. Other secondary endpoints, including pulmonary function tests and patient-reported outcome measures improved in some subjects. Conclusion: A 12-week physical training program improved or maintained exercise capacity in patients with IPF (despite disease progression) or fibrotic sarcoidosis. The results from this pilot study could be used to design prospective studies aimed at answering lingering questions about exercise training in patients with these progressive, incurable conditions.
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