{"id":1563,"date":"2023-03-30T09:43:12","date_gmt":"2023-03-30T13:43:12","guid":{"rendered":"https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/?p=1563"},"modified":"2026-06-27T20:28:23","modified_gmt":"2026-06-28T00:28:23","slug":"better-than-any-drug","status":"publish","type":"post","link":"https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/2023\/03\/30\/better-than-any-drug\/","title":{"rendered":"Better than Any Drug"},"content":{"rendered":"<p><strong>By Lisa Farr, M.Ed, Director, Exercise Physiology Core Lab <\/strong><\/p>\n<p><strong>Interview with: Katie Love, MD<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1567 size-medium\" src=\"https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image001-300x285.png\" alt=\"Katie Love, MD\" width=\"300\" height=\"285\" srcset=\"https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image001-300x285.png 300w, https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image001-211x200.png 211w, https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image001.png 768w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>Type 1 diabetes occurs when the insulin-producing beta cells of the pancreas are damaged through an<br \/>\nauto-immune process. This process happens in genetically susceptible individuals and is probably<br \/>\ntriggered by one or more environmental factors, such as viral infection. Over time, once enough of the<br \/>\nbeta cells are destroyed, blood glucose begins to rise, and the diagnosis of type 1 diabetes is established.<br \/>\nMost people are diagnosed as children, teens, or young adults.<\/p>\n<p>Mortality is three times higher in people with type 1 diabetes than the general population, and the main<br \/>\ndriver of this is cardiovascular disease. Individuals with type 1 diabetes are at a 3-10 fold increased risk<br \/>\nof cardiovascular disease compared to the general population, and they tend to develop it at younger<br \/>\nages. This risk increases with poor control of blood glucose, referred to as \u201cglycemic control.\u201d<\/p>\n<p>Best estimates indicate that over 75% of adults living with type 1 diabetes are not achieving optimal<br \/>\nglucose control.<\/p>\n<p>Most people with type 1 diabetes develop insulin resistance. Insulin resistance means that cells in<br \/>\nmultiple parts of the body, including the muscles, liver, heart, and brain, don\u2019t respond well to insulin.<br \/>\nThe vascular system takes a hit in diabetes, in part related to insulin resistance.<\/p>\n<p>We know that insulin resistance and poor vascular health are more common when people don\u2019t<br \/>\nexercise. We also know that blood sugar is harder to control under these conditions.<\/p>\n<p>Exercise is an extremely potent intervention for improving vascular health and blood glucose regulation.<br \/>\nSome, but not all, studies show that people with type 1 diabetes who exercise spend more time \u201cin<br \/>\nrange\u201d (ie at goal glucose levels) on days they exercise when compared to days they don\u2019t. So a person<br \/>\nwith type 1 diabetes could see a daily benefit of being an exerciser. But there are also important long<br \/>\nterm benefits of exercise\u2014exercise has been shown to decrease cardiovascular disease event rate, and<br \/>\nimprove all-cause mortality in type 1 diabetes.<\/p>\n<p>Unfortunately, people with type 1 diabetes are less likely to exercise than the general population.<\/p>\n<p>One of the questions this study will seek to answer is&#8212;what happens to vascular health and insulin<br \/>\nresistance if a person with type 1 diabetes does begin an exercise program? And sticks to it? What<br \/>\nhappens to blood glucose control?<\/p>\n<p>It will also examine these same questions in individuals who are prescribed a medication called<br \/>\ndulaglutide. Dulaglutide also potentially has positive effects on insulin resistance and the vascular<br \/>\nsystem. Perhaps it could be cardioprotective in type 1 diabetes?<\/p>\n<p>Thus, the overarching goals of this study are to better understand how and in what ways exercise or this<br \/>\nmedication might help people with type 1 diabetes.<\/p>\n<p>Another goal is to better understand the barriers people with type 1 diabetes face when beginning or<br \/>\nsticking with an exercise program.<\/p>\n<p>Questions and Answers with Katie Love, MD, a UVA Endocrinologist and Principal Investigator for<br \/>\nHSR210198-Therapeutic Strategies for Microvascular Dysfunction in Type 1 Diabetes<\/p>\n<p><strong>Question<\/strong><br \/>\nWhy did you want to study this issue?<\/p>\n<p><strong>Answer<\/strong><br \/>\nI\u2019m an endocrinologist. But I\u2019m also someone living with type 1 diabetes. I was diagnosed at the age of 4.<br \/>\nSo in addition to the scientific interest, and the clinical interest in learning more to provide better care<br \/>\nfor my patients, I have a personal interest.<\/p>\n<p>There are a few studies that show that people with type 1 diabetes live longer, healthier lives if they<br \/>\nexercise. And that individuals with diabetes can better control blood sugar and reduce their risk of<br \/>\ncardiovascular disease if they exercise. But overall I\u2019ve been surprised by the lack of research&#8212;most of it<br \/>\nhas been in type 2 diabetes.<\/p>\n<p>People living with type 1 diabetes are at a much higher risk for cardiovascular disease than the general<br \/>\npopulation. It\u2019s the leading cause of death in type 1 diabetes. And we know the risk is highest when<br \/>\nglucose control is poor. Yet about 75% of adults with type 1 diabetes are not meeting goals for glucose<br \/>\ncontrol.<\/p>\n<p>We know that poor glucose control increases the incidence of diabetes complications, and results in an<br \/>\nunhealthy vascular system. We know that type 1 diabetics develop something called insulin resistance,<br \/>\nand that insulin resistance predicts many of the complications we see in diabetes, including<br \/>\ncardiovascular disease. Exercise and certain medications have both been shown to improve insulin<br \/>\nresistance and cardiovascular disease in type 2 diabetes. The hope is that this will be similar in type 1<br \/>\ndiabetes.<\/p>\n<p>We think we can improve vascular health and reduce risk of cardiovascular disease and other diabetesrelated complications with exercise, and perhaps also with a certain class of drugs called glucagon-likepeptide-1-receptor agonists (GLP-1 RA\u2019s). This study will examine both (as well as placebo) by doing a<br \/>\nvariety of tests at baseline and again after 14 weeks of intervention. In addition, we\u2019ll do a number of<br \/>\nsurveys to get a sense of what people\u2019s barriers to exercise are. We\u2019ll also do these 3 months after the<br \/>\nstudy has ended, as we are very interested in who continues to exercise and who doesn\u2019t and why.<\/p>\n<p><strong>Question<\/strong><br \/>\nSo what do you think is the real-life application of your study?<\/p>\n<p><strong>Answer<\/strong><br \/>\nI think research like this ultimately helps us provide better care for our patients. It drives us to do more<br \/>\nresearch&#8212;to better understand the mechanisms involved, which can allow us to develop better<br \/>\ntherapies to prevent the cardiovascular conditions so common in type 1 diabetes.<br \/>\nI think the surveys we are doing will also be very important. As health care clinicians we sometimes<br \/>\nassume we know why people don\u2019t exercise, but we\u2019re not always correct. For example, most clinicians<br \/>\nthink people with type 1 diabetes exercise less than the non-diabetic population because of fear of<br \/>\nhypoglycemia. But some small surveys have not borne that out. It appears that people with type 1<br \/>\ndiabetes don\u2019t exercise enough for the same reasons as most people- things like time and motivation.<br \/>\nWe\u2019re hoping to gain more insight into that question with this study&#8212;particularly because we\u2019ll track<br \/>\ntheir exercise during the study period and after it has ended.<\/p>\n<p><strong>Question<\/strong><br \/>\nCan you describe the basics of the study procedure?<\/p>\n<p><strong>Answer<\/strong><br \/>\nWe are recruiting people with type 1 diabetes between the ages of 18 and 40 who are not regular<br \/>\nexercisers but are otherwise healthy. Enrolled subjects will be randomized to one of three groups&#8212;<br \/>\nexercise, medication, or placebo. The exercise intervention is 14 weeks of supervised high intensity<br \/>\ninterval training on a stationary bike. We chose high intensity interval training because previous studies<br \/>\nhave shown it is more effective while also being less likely to cause hypoglycemia. The medication and<br \/>\nplacebo groups will receive weekly injections.<br \/>\nWe\u2019ll do a variety of tests on the subjects at baseline and repeat these 14 weeks later after they\u2019ve been<br \/>\nexercising or taking the medication\/placebo. We\u2019ll measure fitness with a VO2 peak test; body<br \/>\ncomposition with a Bod Pod, and we\u2019ll do a number of different labs. Some labs are specific to diabetes,<br \/>\nsuch as tests to determine how well the pancreas is working (C-peptide level and blood sugar control),<br \/>\nand others are related to cardiovascular risk and overall health. Subjects will wear a continuous glucose<br \/>\nmonitor for 10 days at the beginning of the study and again at the end&#8212;this provides information about<br \/>\nglycemic variability. We\u2019ll do a test called an insulin clamp which allows us to measure insulin sensitivity.<br \/>\nWe\u2019ll study blood flow by performing ultrasounds of the heart and the leg muscles. We\u2019ll look at how<br \/>\nwell the vessels dilate and respond to insulin. And we\u2019ll look at the relationships between vascular<br \/>\nperfusion, fitness, insulin resistance, and glucose variability.<br \/>\nWe will get a lot of useful information from this study and we do share results with our subjects, so they<br \/>\nwill get a lot of useful information too. And for those randomized to the exercise program&#8212;well, 14<br \/>\nweeks of supervised exercise is a great jump start!<br \/>\nWhile catching up with Dr. Love we took the time to get a little personal too.<\/p>\n<p><strong>Question<\/strong><br \/>\nAre you an exerciser Dr. Love?<\/p>\n<p><strong>Answer<\/strong><br \/>\nI am! My parents pushed this my entire child hood as they believed in the health benefits. I spent my<br \/>\nchildhood dancing\u2014hip hop!\u2014and then became a runner in my teens. I ran all through high school,<br \/>\nmedical school, and residency&#8212;it was great stress relief. I\u2019m still a runner but now that I have 2 little<br \/>\nones in addition to being a Doc it is harder to make time. My husband and I try to support each other\u2019s<br \/>\nexercise and we\u2019ve purchased a home treadmill to make it easier. We try to do outdoorsy active things<br \/>\nwith our kids to set a good example.<\/p>\n<p><strong>Question<\/strong><br \/>\nWhat advice do you give your patients about exercise?<\/p>\n<p><strong>Answer<\/strong><br \/>\nI share that I have type 1 diabetes too\u2026and that for me too it can be challenging some days to fit it<br \/>\nin\u2026but that my glucose control is so much better regulated if I exercise every day. Exercise really allows<br \/>\nyou to live your best life. If there is one thing I would encourage everyone to do\u2014people with type 1<br \/>\ndiabetes or not&#8211; it would be exercise. There is not a drug I could give that would mean more to health.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1568 size-medium\" src=\"https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image002-300x225.jpg\" alt=\"Katie Love and her children \" width=\"300\" height=\"225\" srcset=\"https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image002-300x225.jpg 300w, https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image002-1024x769.jpg 1024w, https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image002-768x577.jpg 768w, https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image002-266x200.jpg 266w, https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/wp-content\/uploads\/sites\/169\/2023\/03\/thumbnail_image002.jpg 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>By Lisa Farr, M.Ed, Director, Exercise Physiology Core Lab Interview with: Katie Love, MD Type 1 diabetes occurs when the insulin-producing beta cells of the pancreas are damaged through an auto-immune process. This process happens in genetically susceptible individuals and is probably triggered by one or more environmental factors, such as viral infection. Over time, [&hellip;]<\/p>\n","protected":false},"author":1673,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_members_access_role":[],"_members_access_error":"","_links_to":"","_links_to_target":""},"categories":[4],"tags":[7],"class_list":["post-1563","post","type-post","status-publish","format-standard","hentry","category-news","tag-department-news"],"acf":false,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Better than Any Drug - Exercise Physiology Core Laboratory<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/med.virginia.edu\/exercise-physiology-core-laboratory\/2023\/03\/30\/better-than-any-drug\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Better than Any Drug - Exercise Physiology Core Laboratory\" \/>\n<meta property=\"og:description\" content=\"By Lisa Farr, M.Ed, Director, Exercise Physiology Core Lab Interview with: Katie Love, MD Type 1 diabetes occurs when the insulin-producing beta cells of the pancreas are damaged through an auto-immune process. This process happens in genetically susceptible individuals and is probably triggered by one or more environmental factors, such as viral infection. 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