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EUROPEAN JOURNAL OF PHYSICAL AND REHABILITATION MEDICINE
Rivista di Medicina Fisica e Riabilitativa dopo Eventi Patologici
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Indexed/Abstracted in: CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 2,063
European Journal of Physical and Rehabilitation Medicine 2016 Nov 10
Effects of yogic exercises on functional capacity, lung function and quality of life in participants with obstructive pulmonary disease: a randomized controlled study
Marian E. PAPP 1, Petra LINDFORS 2, Per E. WANDELL 1, Malin NYGREN-BONNIER 3, 4 ✉
1 Department of Neurobiology Care Sciences and Society, Division of Family Medicine, Karolinska Institutet, Stockholm, Sweden; 2 Department of Psychology, Stockholm University, Stockholm, Sweden; 3 Department of Neurobiology Care Sciences and Society, Division of Physiotherapy, Karolinska Institutet, Stockholm, Sweden; 4 Functional Area Occupational Therapy and Physiotherapy, Allied Health Professionals Function, Karolinska University Hospital, Huddinge, Sweden
BACKGROUND: Knowledge of hatha yogic exercises, the most used yoga style, for increasing functional capacity in patients with obstructive pulmonary diseases remains limited.
AIM: The aim was to evaluate the effects and feasibility of hatha yoga (HY) compared to a conventional training program (CTP) on functional capacity, lung function and quality of life in patients with obstructive pulmonary diseases.
DESIGN: RCT (randomized clinical trial).
SETTING: The study was performed at the Karolinska University Hospital, Stockholm, Sweden among outpatients.
POPULATION: Thirty-six patients with obstructive pulmonary disease.
METHODS: Forty patients were randomized with 36 (24 women, median age=64, age range: 40-84 yrs) participating in HY (n=19) or CTP (n=17). Both HY and CTP involved a 12-week program with a 6-month follow-up. Functional capacity (using the 6-minute walk test, 6MWT), lung function (spirometry), respiratory muscle strength (respiratory pressure meter), oxygen saturation (SpO2), breathlessness (Borg), respiratory rate (f) and disease-specific quality of life (CRQ) were measured at baseline, at 12 weeks and at a 6-month follow-up.
RESULTS: Testing for interactions (group x time) with ANOVAs showed significant effects on the CRQ fatigue (p=0.04) and emotional (p=0.02) domains, with improvements in the CTP group after the 12-week intervention (p=0.02 and 0.01, respectively) but not in the HY group. Within each group, significant improvements emerged for the 6MWD after 12-week intervention (HY: mean difference 32.6 m; CI 10.1-55.1, p=0.014; CTP: mean difference 42.4 m; CI 17.9-67.0, p=0.006). Within-group improvements in CRQ appeared in both groups. Within the HY group, the respiratory rate (f) decreased and SpO2 increased. Improved effects after follow-up emerged only for the CTP group for 6MWD (p=0.04), diastolic blood pressure (p=0.05) and CRQ emotional domain (p=0.01).
CONCLUSIONS: After 12 weeks, 6MWD improved significantly within both groups. Within the HY group, improvements in the CRQ mastery domain, f and SpO2 emerged. Within the CTP group, there were improvements in lung function parameter forced vital capacity (FVC), respiratory muscle strength and all CRQ-domains. The CTP also exhibited effects on CRQ after the 6months follow-up.
CLINICAL REHABILITATION IMPACT: Similar effects of HY and CTP show that HY seems feasible and safe as a form of physical exercise for pulmonary disease patients. As part of the rehabilitation, HY may constitute an alternative to other physical training activities and may be a useful addition to formal rehabilitation programs.