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Reductions in resistance exercise-induced hyperglycaemic episodes are associated with circulating interleukin-6 in Type 1 diabetes.
MedLine Citation:
PMID:  24702172     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
AIMS: To determine the influence of different volumes of resistance exercise on circulating interleukin-6 (IL-6) and to explore the relationships between IL-6 and glycaemia.
METHODS: Eight participants with complication-free Type 1 diabetes, whose mean ± sem age was 38 (6) years, mean ± sem HbA1c concentration was 71 ±11 mmol/mol (8.7 ±1.0%) and mean ± sem Type 1 diabetes duration was 15 ±13 years, attended the research facility after an overnight fast on four separate occasions, having administered their basal insulin the night before (glargine 27.5±3.1U, n=8), but omitted morning rapid-acting insulin. Participants completed either a one-set (14-min), two-set (28-min), or three-set (42-min resistance exercise trial (eight exercises × 10 repetitions) at 67±3% one-repetition maximum followed by a 60-min recovery, or a resting control trial. Venous blood samples were taken before and after exercise. Data were analysed using repeated-measures anova (P≤0.05).
RESULTS: Whereas IL-6 levels remained similar to baseline levels after one set of resistance exercises (30 min, P=0.287; 60 min, P=0.318), IL-6 levels were > baseline levels at 60 min post-exercise after a two-set exercise trial (2.94 ± 0.94 pg/ml, P=0.002) and doubled at both 30 min (4.01 ± 1.00 pg/ml, P=0.048) and 60 min (4.28 ± 1.25 pg/ml, P=0.084) post-exercise after the three-set resistance exercise trial. Post-exercise blood glucose area under the curve (mmol/l at 60 min was greater after both the one-set (P=0.025) and two-set trials (P=0.008), than after the control trial, but similar between the three-set trial and the control trial (P=0.240). The rise in IL-6 from baseline to peak concentration significantly correlated inversely with blood glucose area under the curve (r=-0.65, P=0.041).
CONCLUSIONS: Circulating IL-6 is increased by resistance exercise in a volume-dependent manner, and resistance exercise-induced increases in IL-6 correlated with reductions in post-exercise hyperglycaemia in Type 1 diabetes, suggesting a role for IL-6 in improving post-resistance exercise glycaemic disturbances in Type 1 diabetes. This article is protected by copyright. All rights reserved.
Authors:
D Turner; S Luzio; L P Kilduff; B J Gray; G Dunseath; S C Bain; M D Campbell; D J West; R M Bracken
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-4-5
Journal Detail:
Title:  Diabetic medicine : a journal of the British Diabetic Association     Volume:  -     ISSN:  1464-5491     ISO Abbreviation:  Diabet. Med.     Publication Date:  2014 Apr 
Date Detail:
Created Date:  2014-4-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8500858     Medline TA:  Diabet Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
This article is protected by copyright. All rights reserved.
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