{"id":{"repo_id":"york","oai_identifier":"oai:yorkspace.library.yorku.ca:10315/41707"},"canonical_url":"https://search.dev.ndltd.org/etd/york/oai:yorkspace.library.yorku.ca:10315/41707","repository":{"repo_id":"york","name":"York University","base_url":"https://yorkspace.library.yorku.ca/oai/request"},"display":{"title":"The Timing of Walking and Post-Meal Blood Sugar Levels in Adults with Type 1 Diabetes","abstract":"Managing blood glucose excursions following a meal can pose a challenge for individuals with type 1 diabetes (T1D). This thesis examined whether, compared to being sedentary, a 20-minute moderate-intensity walk pre- or post-dinner could reduce postprandial glucose excursions. Eleven adults with T1D using hybrid closed-loop systems (HCLS) participated in this randomized, crossover real-world study. Participants undertook a 20-minute pre- or post-dinner walk for two weeks following a two-week baseline period. Continuous glucose monitoring data were analyzed using generalized estimating equations. In the 2-hours pre- to 4-hours post-dinner, pre-meal walks significantly improved percent time in 3.9-10.0mmol/L (LSM±SE=84.9±1.5%; B=5.58; p=0.01) and decreased percent time in 10.0-13.9mmol/L (LSM±SE=11.1±1.4%; B=-4.70; p=0.02) compared to baseline (LSM±SE=79.3±1.9% and 15.8±1.7%). There were no significant differences in area under the curve, peak, and nadir glucose between conditions (p>0.05). A 20-minute pre-meal walk may be a practical strategy to mitigate postprandial glucose excursions in individuals with T1D using HCLS.","abstract_html":"Managing blood glucose excursions following a meal can pose a challenge for individuals with type 1 diabetes (T1D). This thesis examined whether, compared to being sedentary, a 20-minute moderate-intensity walk pre- or post-dinner could reduce postprandial glucose excursions. Eleven adults with T1D using hybrid closed-loop systems (HCLS) participated in this randomized, crossover real-world study. Participants undertook a 20-minute pre- or post-dinner walk for two weeks following a two-week baseline period. Continuous glucose monitoring data were analyzed using generalized estimating equations. In the 2-hours pre- to 4-hours post-dinner, pre-meal walks significantly improved percent time in 3.9-10.0mmol/L (LSM±SE=84.9±1.5%; B=5.58; p=0.01) and decreased percent time in 10.0-13.9mmol/L (LSM±SE=11.1±1.4%; B=-4.70; p=0.02) compared to baseline (LSM±SE=79.3±1.9% and 15.8±1.7%). There were no significant differences in area under the curve, peak, and nadir glucose between conditions (p>0.05). A 20-minute pre-meal walk may be a practical strategy to mitigate postprandial glucose excursions in individuals with T1D using HCLS.","abstract_has_math":false,"creators":["Turner, Lauren Victoria"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Riddell, Michael C."],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-12-08","date_published":"2023-12-08","updated_at":"2026-07-24T06:34:05Z","subjects":["Physiology"],"languages":["en"],"rights":["Author owns copyright, except where explicitly noted. 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In the 2-hours pre- to 4-hours post-dinner, pre-meal walks significantly improved percent time in 3.9-10.0mmol/L (LSM±SE=84.9±1.5%; B=5.58; p=0.01) and decreased percent time in 10.0-13.9mmol/L (LSM±SE=11.1±1.4%; B=-4.70; p=0.02) compared to baseline (LSM±SE=79.3±1.9% and 15.8±1.7%). There were no significant differences in area under the curve, peak, and nadir glucose between conditions (p>0.05). A 20-minute pre-meal walk may be a practical strategy to mitigate postprandial glucose excursions in individuals with T1D using HCLS."]},{"key":"dc:title","label":"Title","values":["The Timing of Walking and Post-Meal Blood Sugar Levels in Adults with Type 1 Diabetes"]}]}],"canonical_facts":{"dc:contributor.advisor":["Riddell, Michael C."],"dc:creator":["Turner, Lauren Victoria"],"dc:date.accessioned":["2023-12-08T14:38:02Z"],"dc:date.available":["2023-12-08T14:38:02Z"],"dc:date.issued":["2023-12-08"],"dc:description.abstract":["Managing blood glucose excursions following a meal can pose a challenge for individuals with type 1 diabetes (T1D). This thesis examined whether, compared to being sedentary, a 20-minute moderate-intensity walk pre- or post-dinner could reduce postprandial glucose excursions. Eleven adults with T1D using hybrid closed-loop systems (HCLS) participated in this randomized, crossover real-world study. Participants undertook a 20-minute pre- or post-dinner walk for two weeks following a two-week baseline period. Continuous glucose monitoring data were analyzed using generalized estimating equations. In the 2-hours pre- to 4-hours post-dinner, pre-meal walks significantly improved percent time in 3.9-10.0mmol/L (LSM±SE=84.9±1.5%; B=5.58; p=0.01) and decreased percent time in 10.0-13.9mmol/L (LSM±SE=11.1±1.4%; B=-4.70; p=0.02) compared to baseline (LSM±SE=79.3±1.9% and 15.8±1.7%). There were no significant differences in area under the curve, peak, and nadir glucose between conditions (p>0.05). A 20-minute pre-meal walk may be a practical strategy to mitigate postprandial glucose excursions in individuals with T1D using HCLS."],"dc:identifier.uri":["https://hdl.handle.net/10315/41707"],"dc:language":["en"],"dc:rights":["Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests."],"dc:subject":["Physiology"],"dc:title":["The Timing of Walking and Post-Meal Blood Sugar Levels in Adults with Type 1 Diabetes"],"dc:type":["Electronic Thesis or Dissertation"]},"updated_at":"2026-07-24T06:34:05Z"}