Ann-Katrin (Anka) Grotle, PhD

New episode on the optimal exercise intensity, duration, and frequency to prevent and reverse heart aging! In this podcast episode, Dr. Benjamin Levine discusses his groundbreaking research, which reveals how three weeks of bed rest can have a more detrimental impact on fitness than 30 years of aging. Dr. Levine details his research findings that show how a structured exercise regimen can reverse up to 20 years of heart aging by improving both shrinkage and compliance, as well as enhancing aspects of vascular age by 15 years. He also discusses how resistance training and aerobic training have profound differences on the heart, what risks are linked to high-intensity exercise, why recovery is key for the heart, how exercise duration and intensity affect coronary calcium levels, what exercise dose increases Afib risk, and so much more. This episode is a must! Available on YouTube, Spotify, X, and everywhere else. Links in comment. Timestamps: 0:00 - Introduction 1:31 - Bed rest vs. 30 years of aging 5:18 - Recovering from bed rest 6:49 - Does exercise protect against long COVID? 11:27 - Bed rest as a model for space flight 12:24 - How bed rest affects heart size 13:52 - Why a brand-new rubber band mimics a lifetime of endurance training 17:23 - The exercise dose that preserves youthful cardiovascular structure 19:32 - Reversing 20 years of heart aging 23:14 - Reversing vascular age by 15 years 28:38 - Why start an exercise regimen in your 70s? 34:26 - High-intensity exercise risks 37:51 - Balancing high- & moderate-intensity training 42:49 - Training for health vs. training for performance 43:57 - Why muscle mass & cardiorespiratory fitness are like retirement funds 45:12 - Make exercise part of your personal hygiene 46:16 - Why VO2 max correlates with longevity 53:43 - Cardiorespiratory fitness & mortality 59:21 - How does change in fitness over time affect mortality? 1:01:34 - Exercise non-responders 1:05:23 - Limiting factors for VO2 max improvements 1:08:20 - How marathon training affects heart size 1:12:34 - Heart adaptations in purely strength-trained vs. endurance athletes 1:18:23 - Why pure strength-trainers should incorporate endurance training 1:22:07 - How strength training affects blood pressure 1:26:41 - How exercise influences cardiac output 1:28:39 - Does CrossFit count as endurance training? 1:31:04 - Exercise for improving blood pressure 1:36:11 - Lifestyle strategies for treating hypertension 1:38:40 - Why recovery is key 1:42:36 - The best indicator of being overtrained 1:43:36 - Estimating training zones 2-5 1:50:00 - Why HRV is a poor recovery indicator 1:55:16 - Why men are faster runners than women 1:58:49 - Can women achieve similar aerobic exercise benefits doing 2x less? 2:00:21 - Possible cardiovascular benefits of HRT in women 2:02:12 - Defining “extreme exercise” 2:04:00 - How exercise volume affects coronary plaque calcification 2:10:50 - How exercise duration & intensity affect coronary calcium levels 2:14:03 - Why high exercise duration & intensity increases Afib risk 2:16:33 - What exercise dose increases Afib risk? 2:17:59 - Managing stroke risk in athletes prone to Afib 2:21:14 - Why you shouldn’t become an endurance athlete to “live longer”