Weightlifting with Type 1 Diabetes: What Strength Training Does to Your Blood Sugar | Endocrine Matters Ep. 2.53
Weightlifting with Type 1 Diabetes: What Strength Training Does to Your Blood Sugar | Endocrine Matters Ep. 2.53 A run sends your blood sugar crashing. A heavy lift can send it up. And then at 2 a.m., the low shows up anyway. If you live with type 1 diabetes, you've probably noticed something strange, and you've probably been told strength training is "too complicated" for you. It isn't. It just needs a plan. Dr. Arti Thangudu, triple board-certified endocrinologist, opens the Not Trendy, Just Effective holiday series for National Diabetes Month with the conversation type 1 keeps getting left out of: why lifting behaves so differently from cardio, why the low often arrives hours later, and the pre-lift playbook that replaces fear with a plan. š This episode explores: š§© The pattern nobody explains: a run sends your blood sugar crashing, a heavy lifting session can send it up, and hours later the low shows up anyway. "You are not doing anything wrong. That's physiology." š§© Lifting vs. cardio, the actual mechanism: steady cardio lets working muscles pull glucose out of your blood, while short, intense efforts trigger adrenaline and glucagon that tell your liver to push glucose out faster than your muscles use it š§© The real-world data: in the T1DEXI study, nearly 500 adults with type 1, most of them women, did at-home workouts on CGMs. Average drop: about 18 points during aerobic workouts, 14 during intervals, and only about 9 during resistance work š§© The encouraging part: on exercise days, people spent more time in range over the next 24 hours, 76% compared with 70% š§© The delayed low: after a heavy session your muscles refill glycogen for hours and stay more insulin sensitive, so the bill comes due 4.5 to 6 hours later, sometimes in the middle of the night. "The workout isn't over when you leave the gym." š§© The pre-lift playbook: your number AND your trend arrow, the consensus starting ranges, ketones first if you're high and feeling unwell, skipping the hard session after a severe low in the last 24 hours, insulin on board, and fast-acting glucose always š§© Why to lift first when weights and cardio share a session, why you shouldn't rage-bolus the post-lift spike, and the bedtime check on lifting days š§© Midlife women with type 1, the intersection research keeps skipping: estrogen swings change insulin sensitivity, so numbers that start behaving differently in your late thirties or forties are physiology, not you slipping š§© Your first four weeks: two sessions a week, five or six basic moves, one change at a time, and a log that turns a vague conversation with your diabetes team into a precise one š§© Myth or fact: "people with type 1 shouldn't lift heavy," "a rise after lifting means you did something wrong," and more š© This episode is for you if: You live with type 1 and the "too complicated" message has kept you out of the weight room You've watched a heavy session send your number UP and wondered what you did wrong The 2 a.m. low after gym days keeps finding you You're a woman in midlife with type 1 whose numbers started acting differently in your late thirties or forties You love someone with type 1 who wants to get strong safely āļø The bottom line Lifting with type 1 diabetes isn't too complicated for you. Your body follows rules, and once you know them, you can plan around them. Check your number and your trend. Lift before cardio. Expect the delayed low. Log what happens, and bring that data to your diabetes team. Not because it's trendy. Because it works. š About the Host Dr. Arti Thangudu is a triple board-certified physician in Endocrinology, Diabetes and Metabolism; Internal Medicine; and Lifestyle Medicine, a Menopause Society Certified Practitioner, and the founder of Complete Medicine, a direct-care practice built around time, transparency, and evidence. š Resources Mentioned T1DEXI: the real-world CGM exercise study in nearly 500 adults with type 1 (Diabetes Care, 2023) Exercise management in type 1 diabetes, international consensus statement (Lancet Diabetes & Endocrinology, 2017) The weights-versus-running crossover studies behind the delayed low (Diabetes Care, 2012 and 2013) GLP-1s and Type 1 Diabetes: What the Evidence Shows, earlier Endocrine Matters episode Complete Medicine: https://www.sacomplete.com š Learn More / Connect 𩺠Complete Medicine ā https://www.sacomplete.com | Direct care with a doctor who actually has time for you š© Newsletter + Blog ā https://www.sacomplete.com/complete-medicine-blog | Weekly, plain-language hormone and metabolic breakdowns š Podcast ā Endocrine Matters, new episodes on all major platforms š² Instagram ā https://www.instagram.com/drartithangudu | Daily myth-busting and real talk ā¶ļø YouTube ā Arti Thangudu MD, https://www.youtube.com/@drartithangudu | Full episodes and shorts Subscribe, leave a review, and share this one with someone who lives with type 1 and lifts, or wants to. š About Endocrine Matters Endocrine Matters is a weekly podcast where endocrinologist Dr. Arti Thangudu breaks down hormones, metabolism, and the healthcare system in plain language. No hype. No misinformation. No "heal your hormones naturally" shortcuts. ā± Chapters 00:00. Why a run drops you and a lift can raise you 00:30. Why lifting matters with type 1 02:00. Lifting vs. cardio: the physiology 05:00. The delayed low 08:00. The pre-lift playbook 12:00. Midlife women with type 1 14:30. Your first four weeks 16:30. Type 1 exercise myths 17:30. Wrap-up




