Relationship of upper-limb and thoracic muscle strength to 6-min walk distance in COPD patients


Autoria(s): Dourado, V. Z.; Antunes, LCD; Tanni, S. E.; de Paiva, SAR; Padovani, Carlos Roberto; Godoy, I
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/03/2006

Resumo

Study objectives: This study was developed to investigate the influence of thoracic and upperlimb muscle function on 6-min walk distance (6MWD) in patients with COPD.Design: A prospective, cross-sectional study.Setting: the pulmonary rehabilitation center of a university hospital.Patients: Thirty-eight patients with mild to very severe COPD were evaluated.Measurements and results: Pulmonary function and baseline dyspnea index (BDI) were assessed, handgrip strength, maximal inspiratory pressure (Pimax), and 6MWD were measured, and the one-repetition maximum (1RM) was determined for each of four exercises (bench press, lat pull down, leg extension, and leg press) performed on gymnasium equipment. Quality of life was assessed using the St. George Respiratory Questionnaire (SGRQ). We found statistically significant positive correlations between 6MWD and body weight (r = 0.32; p < 0.05), BDI (r = 0.50; p < 0.01), FEV, (r = 0.33; p < 0.05), PImax (r = 0.53; p < 0.01), and all values of 1RM. A statistically significant negative correlation was observed between 6MWD and dyspnea at the end of the 6-min walk test (r = -0.29; p < 0.05), as well as between 6MWD and the SGRQ activity domain (r = -0.45; p < 0.01) and impact domain (r = -0.34; p < 0.05) and total score (r = -0.40; p < 0.01). Multiple regression analysis selected body weight, BDI, Pimax, and lat pull down IRM as predictive factors for 6MWD (R-2 = 0.589).Conclusions: the results of this study showed the importance of the skeletal musculature of the thorax and upper limbs in submaximal exercise tolerance and could open new perspectives for training programs designed to improve functional activity in COPD patients.

Formato

551-557

Identificador

http://dx.doi.org/10.1378/chest.129.3.551

Chest. Northbrook: Amer Coll Chest Physicians, v. 129, n. 3, p. 551-557, 2006.

0012-3692

http://hdl.handle.net/11449/11222

10.1378/chest.129.3.551

WOS:000236404200011

Idioma(s)

eng

Publicador

Amer Coll Chest Physicians

Relação

Chest

Direitos

closedAccess

Palavras-Chave #6-min walk distance #COPD #one-repetition maximum #thoracic muscles #upper-limb muscles
Tipo

info:eu-repo/semantics/article