Author(s): Kongsgaard M, Backer V, Jrgensen K, Kjaer M, Beyer N, Kongsgaard M, Backer V, Jrgensen K, Kjaer M, Beyer N
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Abstract This study investigated the effects of heavy resistance training in elderly males with chronic obstructive pulmonary disease (COPD). 18 Home-dwelling male patients (age range: 65-80 years), with a mean forced expiratory volume in the first second (FEV1) of 46 +/- 3.4\% of predicted value, were recruited. Baseline and post-training assessments included: Cross-sectional area (CSA) of quadriceps assessed by MRI, isometric and isokinetic knee extension strength, isometric trunk strength, leg extension power, normal and maximal gait-speed on a 30 m track, stair climbing time, number of chair stands in 30 s, lung function (FEV1) and self-reported health. Subjects were randomized to a resistance training group (RE, n = 9) or a control group conducting breathing exercises (CON, n = 9). RE performed heavy progressive resistance training twice a week for 12 weeks. 6 RE and 7 CON completed the study. In RE the following improved (P < 0.05): Quadriceps CSA: 4\%, isometric knee extension strength: 14\%, isokinetic knee extension strength at 60 degrees /s.: 18\%, leg extension power: 19\%, maximal gait speed: 14\%, stair climbing time: 17\%, isometric trunk flexion: 5\% and self-reported health. In CON no changes were found. In conclusion, 12 weeks of heavy resistance training twice a week resulted in significant improvements in muscle size, knee extension strength, leg extension power, functional performance and self-reported health in elderly male COPD patients.
This article was published in Respir Med
and referenced in Journal of AIDS & Clinical Research