OBJECTIVE: To investigate whether a short maximal sprint can provide another means to counter the rapid fall in glycemia associated with moderate-intensity exercise in individuals with type 1 diabetes and therefore decrease the risk of early postexercise hypoglycemia. RESEARCH DESIGN AND METHODS: In the study, seven male subjects with type 1 diabetes injected theirnormal insulin dose and ate their usual breakfast. When their postprandial glycemia fell to approximately 11 mmol/l, they pedaled at 40% Vo(2peak) for 20 min on a cycle ergometer then immediately engaged in a maximal 10-s cycling sprint (sprint trial) or rested (control trial); the sprint and rest trials were administered in a counterbalanced order. RESULTS:Moderate-intensity exercise resulted in a significant fall (P < 0.05) in glycemia in both trials (means +/- SE: 3.6 +/- 0.5 vs. 3.1 +/- 0.5 mmol/l for sprint and control, respectively). The subsequent short cycling sprint opposed a further fall in glycemia for 120 min, whereas in the absence of a sprint, glycemia decreased further (3.6 +/- 1.22 mmol/l; P < 0.05) after exercise. The stabilization of glycemia in the sprint trial was associated with elevated levels of catecholamines, growth hormone, and cortisol. In contrast, these hormones remained at stable or near-stable levels in the control trial. Changes in insulin and free fatty acid levels were similar in the sprint and control trials. CONCLUSIONS: These results suggest that after moderate-intensity exercise, it is preferable for young individuals with insulin-treated, complication-free type 1 diabetes to engage in a 10-s maximal sprint to acutely oppose a further fall in glycemia than to only rest. The addition of the sprint after moderate-intensity exercise provides another means to reduce the risk of hypoglycemia in active individuals with type 1 diabetes.
RCT Entities:
OBJECTIVE: To investigate whether a short maximal sprint can provide another means to counter the rapid fall in glycemia associated with moderate-intensity exercise in individuals with type 1 diabetes and therefore decrease the risk of early postexercise hypoglycemia. RESEARCH DESIGN AND METHODS: In the study, seven male subjects with type 1 diabetes injected their normal insulin dose and ate their usual breakfast. When their postprandial glycemia fell to approximately 11 mmol/l, they pedaled at 40% Vo(2peak) for 20 min on a cycle ergometer then immediately engaged in a maximal 10-s cycling sprint (sprint trial) or rested (control trial); the sprint and rest trials were administered in a counterbalanced order. RESULTS: Moderate-intensity exercise resulted in a significant fall (P < 0.05) in glycemia in both trials (means +/- SE: 3.6 +/- 0.5 vs. 3.1 +/- 0.5 mmol/l for sprint and control, respectively). The subsequent short cycling sprint opposed a further fall in glycemia for 120 min, whereas in the absence of a sprint, glycemia decreased further (3.6 +/- 1.22 mmol/l; P < 0.05) after exercise. The stabilization of glycemia in the sprint trial was associated with elevated levels of catecholamines, growth hormone, and cortisol. In contrast, these hormones remained at stable or near-stable levels in the control trial. Changes in insulin and free fatty acid levels were similar in the sprint and control trials. CONCLUSIONS: These results suggest that after moderate-intensity exercise, it is preferable for young individuals with insulin-treated, complication-free type 1 diabetes to engage in a 10-s maximal sprint to acutely oppose a further fall in glycemia than to only rest. The addition of the sprint after moderate-intensity exercise provides another means to reduce the risk of hypoglycemia in active individuals with type 1 diabetes.
Authors: Raymond J Davey; Nirubasini Paramalingam; Adam J Retterath; Ee Mun Lim; Elizabeth A Davis; Timothy W Jones; Paul A Fournier Journal: Diabetologia Date: 2014-03-16 Impact factor: 10.122
Authors: Dominique Hansen; Josef Niebauer; Veronique Cornelissen; Olga Barna; Daniel Neunhäuserer; Christoph Stettler; Cajsa Tonoli; Eugenio Greco; Robert Fagard; Karin Coninx; Luc Vanhees; Massimo F Piepoli; Roberto Pedretti; Gustavo Rovelo Ruiz; Ugo Corrà; Jean-Paul Schmid; Constantinos H Davos; Frank Edelmann; Ana Abreu; Bernhard Rauch; Marco Ambrosetti; Simona Sarzi Braga; Paul Beckers; Maurizio Bussotti; Pompilio Faggiano; Esteban Garcia-Porrero; Evangelia Kouidi; Michel Lamotte; Rona Reibis; Martijn A Spruit; Tim Takken; Carlo Vigorito; Heinz Völler; Patrick Doherty; Paul Dendale Journal: Sports Med Date: 2018-08 Impact factor: 11.136
Authors: Lia Bally; Thomas Zueger; Tania Buehler; Ayse S Dokumaci; Christian Speck; Nicola Pasi; Carlos Ciller; Daniela Paganini; Katrin Feller; Hannah Loher; Robin Rosset; Matthias Wilhelm; Luc Tappy; Chris Boesch; Christoph Stettler Journal: Diabetologia Date: 2016-01-06 Impact factor: 10.122