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Impact of single and multiple sets of resistance exercise in type 1 diabetes
Author(s) -
Turner D.,
Luzio S.,
Gray B. J.,
Dunseath G.,
Rees E. D.,
Kilduff L. P.,
Campbell M. D.,
West D. J.,
Bain S. C.,
Bracken R. M.
Publication year - 2015
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/sms.12202
Subject(s) - medicine , hypoglycemia , endocrinology , morning , resistance training , type 1 diabetes , glycemic , type 2 diabetes , basal (medicine) , anaerobic exercise , venous blood , analysis of variance , creatine kinase , insulin , diabetes mellitus , physical therapy
To examine glycemic and glucoregulatory responses to resistance exercise ( RE ) sessions of different volume in type 1 diabetes ( T1DM ). Eight T1DM (seven males: one female; age: 38 ± 6 years, HbA 1C : 8.7 ± 1.0%/71 ± 11 mmol/mol) attended the research facility fasted and on four separate occasions, having taken their usual basal insulin, but omitted morning rapid‐acting insulin. Participants completed a 1SET (14 min), 2SET (28 min), 3SET (42 min) RE session (eight exercises × 10 repetitions) at 67 ± 3% one‐repetition‐maximum followed by 60‐min recovery, or a resting trial ( CON ). Venous blood samples were taken before and after exercise. Data (mean ± SEM ) were analyzed using repeated‐measures analysis of variance ( P ≤ 0.05). RE did not induce hypoglycemia ( BG < 4 mmol/L). During recovery, blood glucose ( BG ) concentrations remained above pre‐exercise after 1SET (15–60 min, P < 0.05) and 2SET (0–60 min, P < 0.05) but comparable ( P > 0.05) with pre‐exercise after 3SET . BG IAUC(area‐under‐curve) (mmol/L/60 min) was greater after 1SET and 2SET vs CON ( 1SET 103.6 ± 36.9 and 2SET 128.7 ± 26.1 vs CON −24.3 ± 15.2, P < 0.05), but similar between 3SET and CON ( 3SET 40.7 ± 59.3, P > 0.05). Under all trials, plasma creatine kinase levels at 24 h post‐exercise were similar ( P > 0.05) to pre‐exercise. RE does not induce acute hypoglycemia or damage muscle. BG progressively rose after one and two sets of RE . However, inclusion of a third set attenuated exercise‐induced hyperglycemia and returned BG to that of a non‐exercise trial.