Related Episodes for Ketones may preserve muscle mass during fasting | Dr. Dominic D'Agostino

“The physical activity guidelines and estimates on how much activity we need are heavily based on self-reported activity, which is useful but imperfect: people remember going for a run, but they forget the short, intense bursts in daily life like sprinting up stairs, chasing kids, and running to catch a bus.”

“Dr. Patrick describes increased shear as a possible way vigorous exercise can damage fragile circulating tumor cells; this is a proposed mechanism, not proof that a workout eliminates metastasis or treats an established tumor.”

“In this excerpt from Dr. Rhonda Patrick's A4M LongevityFest 2023 keynote, she argues that vigorous exercise is one of the most powerful tools for healthy aging because it can raise cardiorespiratory fitness.”

“In 27 men with metabolic syndrome, four four-minute intervals near 90 percent of peak heart rate improved VO2 max more than work-matched moderate exercise. A two-year randomized trial used a broader progressive program in healthy, sedentary adults around age 53.”

“Controlled human studies support acute brain-related responses to high-intensity exercise. Six short all-out cycling intervals improved selected learning and executive measures while increasing circulating BDNF, IGF-1, and VEGF; lactate tracked several of these changes.”

“Exercise can improve blood pressure, insulin sensitivity, triglycerides, and fitness, but someone with high ApoB or LDL may still need targeted diet changes and clinician-guided lipid-lowering treatment. Mood is another major benefit.”

“Dr. Patrick explains some of the early evidence that suggests the value prolonged fasting (48+ hours) may have from the standpoint of tissue rejuvenation and healthspan maintenance, as well as relevance for other more specific conditions.”

“Timing matters when cold exposure follows resistance training. In a 12-week study of 21 men, ten minutes of cold-water immersion immediately after each session attenuated gains in strength and muscle mass and reduced selected anabolic signals.”

“A large meta-analysis found that protein supplementation improved resistance-training gains in muscle size and strength, with little additional lean-mass benefit above an estimated total intake of about 1.6 grams per kilogram per day for most participants.”

“When produced during exercise (especially high intensity workouts like cycling, which shifts metabolism toward glycolysis to more quickly meet the high energetic demands), lactate switches on more than 600 genes involved in muscle adaptation, stimulates mitochondrial biogenesis – the process of making new mitochondria – and promotes protein synthesis, which is essential for muscle growth.”