Muscular performance decreases with increasing complexity of resistance exercises in subjects with chronic obstructive pulmonary disease
Mølmen, Knut Sindre; Evensen Thy, Jonas; Thallaug Dalane, Stine; Ellefsen, Stian; Falch, Gunnar Slettaløkken
Peer reviewed, Journal article
Published version
View/ Open
Date
2019Metadata
Show full item recordCollections
Abstract
Chronic obstructive lung disease (COPD) is associated with impaired muscle functions in addition to the impaired cardiopulmonary capacity inherent to the disease. The purpose of this study was to compare muscular performance between COPD subjects (COPD, n = 11, GOLD grade II/III; FEV1 = 53 ± 14% predicted; 61 ± 7 years) and healthy controls (HC, n = 12, 66 ± 8 years) in three resistance exercises with different complexity: (a) one‐legged knee extension (1KE), and (b) one‐ and (c) two‐ legged leg press (1LP and 2LP, respectively). For each exercise, muscular performance was defined as repetitions to exhaustion at 60% of one‐repetition maximum or overall exercise volume, calculated as the sum of three exercise sets. In HC, muscular performance increased progressively with increasing physiological complexity: 1KE < 1LP 1LP), advocating utilization of one‐legged resistance protocols for rehabilitation purposes.