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Table 5 Simple linear regression analyses on the relationship between training response and lung function in COPD participants

From: Chronic obstructive pulmonary disease does not impair responses to resistance training

Analysis n Slope (95% CI) Intercept (95% CI) r P
Change in muscle strength vs FEV1predicted
 % change 18 − 0.3 (− 0.6, 0.0) 34.8 (16.8, 52.9) − 0.504 0.033
 Numeric change 18 − 0.001 (− 0.003, 0.001) 0.121 (0.017, 0.225) − 0.303 0.222
Change in muscle mass vs FEV1predicted
 % change 19 − 0.3 (− 0.4, − 0.1) 21.4 (12.1, 30.7) − 0.624 0.004
 Numeric change 19 − 0.002 (− 0.003, 0.000) 0.127 (0.068, 0.186) − 0.603 0.006
Change in muscle quality vs FEV1predicted
 % change 18 − 0.1 (− 0.4, 0.2) 12.6 (− 4.2, 29.4) − 0.141 0.577
 Numeric change 18 0.000 (− 0.002, 0.002) 0.063 (− 0.060, 0.186) − 0.038 0.881
Change in one-legged endurance performance vs FEV1predicted
 % change 15 0.3 (− 0.4, 1.0) 8.5 (− 32.8, 49.7) 0.249 0.371
 Numeric change 15 0.001 (− 0.001, 0.002) 0.006 (− 0.066, 0.079) 0.282 0.308
Change in whole-body endurance performance vs FEV1predicted
 % change 17 − 0.2 (− 0.6, 0.3) 17.7 (− 7.8, 43.1) − 0.211 0.416
 Numeric change 17 0.000 (− 0.001, 0.001) 0.023 (− 0.042, 0.089) 0.012 0.963
  1. FEV1predicted, predicted forced expiratory volume in first second; r, Pearson’s r; P, P-value