Safety of Whole-Body Vibration Exercise for Heart Transplant Recipients

Zusammenfassung

Fragestellung: Die positiven Wirkungen des Ganzkörpervibrationstrainings (WBV) werden bis dato in der Rehabilitation nach Herztransplantation nicht eingesetzt, obwohl gerade diese Patienten oft eine ausgeprägte Muskelschwäche und Osteoporose zeigen. Ziel dieser Studie war es, die Sicherheit eines WBV sowie die kardiovaskulären und metabolischen Reaktionen bei herztransplantierten Patienten zu untersuchen. Material und Methode: 14 männliche, klinisch stabile, herztransplantierte Patienten wurden in diese Studie eingeschlossen. Als Intervention führten die Patienten eine Einheit Ganzkörpervibrationstraining am Galileo 2000 durch. Die Herzfrequenz, systolischer und diastolischer Blutdruck, die Plasmalaktatkonzentration sowie die BORG-Skala wurden zur Bestimmung der objektiven und subjektiven Belastung während WBV herangezogen. Ergebnisse: Abbruchgrund bei WBV war bei jedem Patienten die lokalisierte Muskelschwäche der Beinmuskulatur. Die durchschnittliche Versuchsdauer betrug 248 Sekunden (Range 51 - 607). Herzfrequenz, systolischer und diastolischer Blutdruck sowie die Plasmalaktatkonzentrationen erreichten während des WBV Werte wie bei aerobem Ausdauertraining. Es kam bei keinem Patienten zu unerwarteten Zwischenfällen. Schlussfolgerung: Die Ergebnisse dieser Pilotstudie weisen darauf hin, dass WBV bei herztransplantierten Patienten sicher durchführbar ist. Bei einer Einheit WBV entspricht die kardiovaskuläre und metabolische Antwort von Herztransplantierten jener bei aerobem Ausdauertraining.

Abstract

Purpose: The benefits of whole-body vibration exercise (WBV) have not yet been recognized in heart transplant recipients although these patients often show a severe loss in skeletal muscle strength and bone mineral density over time. At present, WBV is not generally recommended for rehabilitation of transplant patients. The purpose of this study was to document the safety, cardiovascular responses and metabolic changes to WBV in heart transplant patients. Material and Methods: 14 male clinically stable heart transplant recipients were included in this study. The subjects were exposed to one set of whole-body vibration using the Galileo 2000 device. Heart rate, systolic and diastolic blood pressure, blood lactate concentration and the Borg scale were used to determine objective and subjective exertion during WBV. Results: In every patient WBV was terminated due to muscular fatigue. The mean duration of exercise was 248 seconds (range, 51 - 607 seconds). Heart rate, systolic and diastolic blood pressure, lactate concentrations and the Borg score increased during WBV to levels achieved during aerobic exercise. No patient experienced adverse events. Conclusion: The results of this pilot study indicate that WBV is feasible and safe in heart transplant recipients. The cardiovascular and metabolic response of an acute bout of WBV is similar to that of standard aerobic exercise.

Sicherheit - Ganzkörpervibrationstraining - Herztransplantation - Muskelschwäche - Osteoporose

Safety - whole-body vibration exercise - heart transplantation - muscle weakness - osteoporosis

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