Cardiopulmonary response during whole-body vibration training in patients with severe COPD.
Several studies in patients with chronic obstructive pulmonary disease (COPD) have shown that whole-body vibration training (WBVT) has beneficial effects on exercise capacity. However, the acute cardiopulmonary demand during WBVT remains unknown and was therefore investigated in this study. Ten patients with severe COPD (forced expiratory volume in 1 s: 38±8% predicted) were examined on two consecutive days. On day one, symptom-limited cardiopulmonary exercise testing was performed on a cycle ergometer. The next day, six bouts of repeated squat exercises were performed in random order for one, two or three minutes either with or without WBVT while metabolic demands were simultaneously measured. Squat exercises with or without WBVT induced comparable ventilatory efficiency (minute ventilation (VE)/carbon dioxide production (V'CO2): 38.0±4.4 with WBVTversus37.4±4.1 without, p=0.236). Oxygen uptake after 3 min of squat exercises increased from 339±40 mL·min-1to 1060±160 mL·min-1with WBVT and 988±124 mL min-1without WBV (p=0.093). However, there were no significant differences between squat exercises with and without WBVT in oxygen saturation (90±4%versus90±4%, p=0.068), heart rate (109±13 bpmversus110±15 bpm, p=0.513) or dyspnoea (Borg scale 5±2versus5±2, p=0.279). Combining squat exercises with WBVT induced a similar cardiopulmonary response in patients with severe COPD compared to squat exercises without WBVT. Bearing in mind the small sample size, WBVT might be a feasible and safe exercise modality even in patients with severe COPD.
Dept of Respiratory Medicine and Pulmonary Rehabilitation, Schoen Klinik Berchtesgadener Land, Schoenau am Koenigssee, Germany; Dept of Prevention, Rehabilitation and Sports Medicine, Klinikum rechts der Isar, Technical University of Munich (TUM), Munich, Germany.
Rainer
R
Gloeckl
Dept of Respiratory Medicine and Pulmonary Rehabilitation, Schoen Klinik Berchtesgadener Land, Schoenau am Koenigssee, Germany.
Petra
P
Richter
Dept of Respiratory Medicine and Pulmonary Rehabilitation, Schoen Klinik Berchtesgadener Land, Schoenau am Koenigssee, Germany.
Sandra
S
Winterkamp
Dept of Pulmonology, University Hospital of Regensburg, Regensburg, Germany.
Michael
M
Pfeifer
Dept of Internal Medicine, Division of Pulmonary Diseases, Philipps University of Marburg, Marburg, Germany.
Christoph
C
Nell
Dept of Cardiovascular Medicine, Stanford University, Stanford, CA, USA.
Jeffrey W
JW
Christle
Dept of Respiratory Medicine and Pulmonary Rehabilitation, Schoen Klinik Berchtesgadener Land, Schoenau am Koenigssee, Germany; Philipps University of Marburg, Marburg, Germany.
Klaus
K
Kenn