Evaluation of Factors Related to Glycemic Management in Professional Cyclists With Type 1 Diabetes Over a 7-Day Stage Race.
Ontology highlight
ABSTRACT: Objective
To investigate factors related to glycemic management among members of a professional cycling team with type 1 diabetes over a 7-day Union Cycliste Internationale World Tour stage race.Research design and methods
An observational evaluation of possible factors related to glycemic management and performance in six male professional cyclists with type 1 diabetes (HbA1c 6.4 ± 0.6%) during the 2019 Tour of California.Results
In-ride time spent in euglycemia (3.9-10.0 mmol/L glucose) was 63 ± 11%, with a low percentage of time spent in level 1 (3.0-3.9 mmol/L; 0 ± 1% of time) and level 2 (<3.0 mmol/L; 0 ± 0% of time) hypoglycemia over the 7-day race. Riders spent 25 ± 9% of time in level 1 (10.1-13.9 mmol/L) and 11 ± 9% in level 2 (>13.9 mmol/L) hyperglycemia during races. Bolus insulin use was uncommon during races, despite high carbohydrate intake (76 ± 23 g ⋅ h-1). Overnight, the riders spent progressively more time in hypoglycemia from day 1 (6 ± 12% in level 1 and 0 ± 0% in level 2) to day 7 (12 ± 12% in level 1 and 2 ± 4% in level 2) (χ2[1] > 4.78, P < 0.05).Conclusions
Professional cyclists with type 1 diabetes have excellent in-race glycemia, but significant hypoglycemia during recovery overnight, throughout a 7-day stage race.
SUBMITTER: Scott SN
PROVIDER: S-EPMC7171953 | biostudies-literature | 2020 May
REPOSITORIES: biostudies-literature
Publications
Evaluation of Factors Related to Glycemic Management in Professional Cyclists With Type 1 Diabetes Over a 7-Day Stage Race.
Scott Sam N SN Christiansen Mark P MP Fontana Federico Y FY Stettler Christoph C Bracken Richard M RM Hayes Charlotte A CA Fisher Miles M Bode Bruce B Lagrou Peter H PH Southerland Phil P Riddell Michael C MC
Diabetes care 20200316 5
<h4>Objective</h4>To investigate factors related to glycemic management among members of a professional cycling team with type 1 diabetes over a 7-day Union Cycliste Internationale World Tour stage race.<h4>Research design and methods</h4>An observational evaluation of possible factors related to glycemic management and performance in six male professional cyclists with type 1 diabetes (HbA<sub>1c</sub> 6.4 ± 0.6%) during the 2019 Tour of California.<h4>Results</h4>In-ride time spent in euglycem ...[more]
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Project description:IntroductionThere are limited injury data in professional horse racing, particularly by sex.ObjectivesTo describe injury incidence, characteristics and falls in male and female, flat and jump jockeys in Great Britain.Design and settingRetrospective cohort study of professional jockeys in Britain.Participants245 jockeys licensed between 2007 and 2017.Primary and secondary outcome measuresThe primary outcome measure was injury on a race day. Injury incidence (per 1000 rides; per 1000 falls) was derived. Incidence-rate ratios (IRR) were calculated to compare incidence between flat and jump racing, male and female jockeys, and male flat and male jump jockeys for: (i) injury incidence, (ii) fall incidence and (iii) injuries per fall.Results234 British professional jockeys were included. Jockeys were on average 19.5±2.0 years old at licence date, 79.9% male and 58.1% flat. The time of follow-up (racing in the study) was 3.7 (SD=2.3) years. There were 278 injuries, occurring in-race (81.7%), in the stalls (10.8%) or parade ring (6.1%). After one injury was removed to preserve anonymity, 57.2% were soft tissue injuries, 25.3% fractures and 10.5% concussion. There were 1634 falls, with 92% in male jump racing. The injury incidence was higher in jump racing (5.1 vs 1.0/1000 jockey rides). The falls incidence was 1.8/1000 rides in flat and 46.2/1000 rides in jump racing (IRR 0.04, 95% CI 0.03 to 0.04). There were over five times higher injuries/1000 falls in flat than jump racing (IRR 5.56, 95% CI 4.05 to 7.53). Male flat jockeys fell less than female flat (IRR 0.57, 95% CI 0.35 to 0.97).ConclusionMost injuries occurred in-race and were soft tissue injuries. Jump jockeys fell more often than flat, and female flat jockeys fell more often than male flat. Flat jockeys injured more frequently when falling. No sex differences were seen for injuries per fall.
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Project description:OBJECTIVE Cross-sectional and longitudinal associations among regimen distress (RD), self-management, and glycemic control were undertaken to explore mechanisms of operation among these variables. RESEARCH DESIGN AND METHODS In a behavioral randomized control trial (RCT) to reduce RD, 392 adults with type 2 diabetes were assessed for RD, diet, exercise, medication adherence, and HbA1c at baseline and at 4 and 12 months. Associations among RD, self-management, and HbA1c were examined in cross-sectional analyses at baseline, in prospective analyses using baseline values to predict change over time, and in time-varying analyses. RESULTS At baseline, greater RD and poorer medication adherence were independently associated with higher HbA1c (P = 0.05 and P < 0.001, respectively), and greater RD was associated with poorer medication adherence (P = 0.03). No consistent pattern of significant prospective associations was found. Significant time-varying findings showed that decreases in RD were associated with improvements in medication adherence (P < 0.01), physical activity (P < 0.001), and HbA1c (P = 0.02) over time following intervention. Changes in self-management were not associated with changes in HbA1c over time. CONCLUSIONS In the context of an RCT to reduce distress, RD, self-management, and HbA1c were interrelated in cross-sectional and time-varying analyses. Decreases in RD were associated with improvements in both self-management and HbA1c over 12 months. Findings point to the complex and likely multifaceted pathways of association among these key constructs, with results indicating significant linkages between RD and both self-management and glycemic control over time.
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