Heart rate prescribed walking training improves cardiorespiratory fitness but not glycaemic control in people with type 2 diabetes

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Deutscher übersetzter Titel:Ärztlich verschriebenes, herzfrequenzorientiertes Walkingtraining verbessert die kardiopulmonale Fitness, jedoch nicht die glykämische Kontrolle bei Menschen mit Typ-2-Diabetes
Autor:Morton, Richard D.; West, Daniel J.; Stephens, Jeffrey W.; Bain, Stephen C.; Bracken, Richard M.
Erschienen in:Journal of sports sciences
Veröffentlicht:28 (2010), 1, S. 93-99, Lit.
Format: Literatur (SPOLIT)
Publikationstyp: Zeitschriftenartikel
Medienart: Gedruckte Ressource
Sprache:Englisch
ISSN:0264-0414, 1466-447X
DOI:10.1080/02640410903365685
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Erfassungsnummer:PU201406005214
Quelle:BISp

Abstract

In this study, we examined the effects of a supervised, heart rate intensity prescribed walking training programme on cardiorespiratory fitness and glycaemic control in people with type 2 diabetes mellitus. After receiving local ethics approval, 27 individuals (21 males, 6 females) with type 2 diabetes were randomly assigned to an experimental (‘‘walking’’) or control group. Participants completed a Balke-Ware test to determine peak heart rate, peak oxygen consumption (VO2peak), and peak gradient. The walking group then completed a 7-week (four sessions a week) supervised, heart rate prescribed walking training programme, whereas the control group continued daily life. After training, participants completed another Balke- Ware test. Fasting blood glucose and glycosylated haemoglobin were measured at rest. The results showed that walking training elicited 80% (s=2) of peak heart rate and a rating of perceived exertion of 11 (s=1). Peak heart rate and VO2peak were higher in the walking than in the control group after training (P < 0.05). Based on the peak gradient before training, the respiratory exchange ratio was significantly lower (P < 0.05) and there was a strong trend for VO2 (P=0.09) and heart rate (P=0.09) to be lower after training at the same gradient in the walking compared with the control group. These improvements increased walking peak gradient by 5 min (s=4 min) compared with the control (P < 0.05). There was no change in fasting blood glucose or glycosylated haemoglobin after training. Despite no change in glycaemic control, heart rate prescribed walking improved peak and sub-maximal cardiorespiratory responses. The beneficial adaptations support the use of heart rate monitoring during walking in people with type 2 diabetes mellitus. Verf.- Referat