| Water-based exercise group | Land-based exercise group | Control group | |
| Subjects | 8 | 8 | 8 |
| Age years | 69±11 | 69±5 | 72±7 |
| Males/females | 3/5 | 5/3 | 4/4 |
| Pulmonary function | |||
| FEV1 L | 1.31±0.31 | 1.57±0.58 | 1.44±0.35 |
| FEV1 % pred | 61±11 | 62±17 | 62±9 |
| FVC % pred | 84±17 | 86±22 | 88±16 |
| FEV1/FVC % | 60±8 | 57±8 | 56±8 |
| TLC % pred | 93±17 | 89±16 | 97±14 |
| VC % pred | 84±13 | 88±12 | 85±13 |
| RV % pred | 103±28 | 96±29 | 120±30 |
| DLCO % pred | 70±13 | 54±20 | 71±13 |
| MIP % pred | 81±20 | 76±19 | 84±35 |
| MEP % pred | 66±21 | 54±17 | 55±14 |
| GOLD stage | |||
| I | 0 | 0 | 0 |
| II | 6 | 6 | 7 |
| III | 2 | 1 | 1 |
| IV | 0 | 1 | 0 |
| Baseline BMI kg·m−2 | 37.9±4.5 | 36.0±3.0 | 37.0±4.2 |
| Baseline weight kg | 99.0±19.4 | 101.1±13.3 | 101.4±13.4 |
| Post-intervention weight kg | 97.2±18.9 | 100.7±17.1 | 101.9±14.6 |
| Change in weight kg | -1.8±1.7 | -0.4±4.6 | 0.5±2.3 |
Data are presented as n or mean±sd. All values are post-bronchodilator. FEV1: forced expiratory volume in 1 s; % pred: % predicted; FVC: forced vital capacity; TLC: total lung capacity; VC: vital capacity; RV: residual volume; DLCO: diffusing capacity of the lung for carbon monoxide; MIP: maximal inspiratory mouth pressure; MEP: maximal expiratory mouth pressure; GOLD: Global Initiative for Chronic Obstructive Pulmonary Disease; BMI: body mass index.