Abstract:
BACKGROUND:Neuromuscular electrical stimulation (NMES) improves muscle performance and exercise tolerance in chronic obstructive pulmonary disease (COPD) patients. In contrast, no study has assessed the effect of NMES on dynamic hyperinflation (DH) in COPD. This study investigated the effect of short-term, high-frequency NMES on DH in patients with COPD. METHODS:Twenty patients were randomly allocated to either a NMES applied bilaterally to the quadriceps muscles (n = 11: 8 weeks, 5 days/week, twice/day, 45 min/session) or a control group (n = 09). All patients received respiratory physical therapy and stretching exercises. Free fat mass, pulmonary function, time to exercise tolerance (Tlim), 6-min walk test distance (6-MWTD), tumor necrosis factor (TNF-α) and β-endorphin levels, Borg dyspnea and leg score (BDS and BLS) and quality of life by the St. George's Respiratory Questionnaire score (SGRQ) were examined before and after the intervention. RESULTS:Compared with the control group, NMES increased FEV1 and FEV1/FVC, 6-MWD and Tlim (P < 0.01) and reduced BDS and SGRQ (P < 0.01). Additionally, changes in the Tlim were positively correlated with respiratory improvements in FEV1 (rho = 0.48, P < 0.01). Also, NMES reduced TNF-α and increased β-endorphin levels, compared with the control group (P < 0.001). CONCLUSION:In summary, 8 weeks of NMES promotes reduction of the perceived sensation of dyspnea during exercise in patients with COPD. This finding is accompanied by improvements in FEV1, exercise tolerance and quality of life, and DH. Interestingly, these findings may be associated with enhanced vasodilatory function and a reduction in inflammatory responses. CLINICAL TRIAL REGISTRATION:NCT01695421.
journal_name
Respir Medjournal_title
Respiratory medicineauthors
Vieira PJ,Chiappa AM,Cipriano G Jr,Umpierre D,Arena R,Chiappa GRdoi
10.1016/j.rmed.2013.12.013subject
Has Abstractpub_date
2014-04-01 00:00:00pages
609-20issue
4eissn
0954-6111issn
1532-3064pii
S0954-6111(13)00499-Xjournal_volume
108pub_type
杂志文章,随机对照试验abstract::This study aimed to evaluate the utility of the pleural fluid lactate dehydrogenase (LDH) isoenzyme algorithm for the differential diagnosis of pleural fluid in patients with haematological malignancies. Twenty consecutive haemato-oncological patients with pleural effusion, hospitalized in the Haematology Department d...
journal_title:Respiratory medicine
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pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
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pub_type: 临床试验,杂志文章,随机对照试验
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