"Impacts of Step Reduction & Fighting Sarcopenia" with Dr. Sara Oikawa feat. Taylor Melvin, Exercise Physiologist & Iconic Trainer
Jun 16, 2021
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Dr. Sara Oikawa from Gatorade Sports Science Institute discusses the impacts of step reduction on muscle health. They explore strategies to mitigate negative consequences of decreased activity levels on aging and younger populations, emphasizing exercise and supplementation to combat age-related sarcopenia. The podcast also highlights the importance of strength training, recovery, and making the right choices for long-term muscle health.
Even short periods of reduced steps can have negative consequences on muscle health and aging, including impairments in glucose handling and increased inter-abdominal fat.
Resistance training is an effective strategy in mitigating muscle loss during disuse and can help combat age-related muscle loss and sarcopenia.
Protein supplementation, with a focus on high-quality sources, can help maintain or increase muscle protein synthesis and support muscle gains during periods of disuse or recovery.
Deep dives
The impact of step reduction on muscle health and aging
Dr. Oi Kawa provides insights on the effects of step reduction and physical inactivity on muscle health and aging. Research shows that even short periods of reduced steps can lead to negative consequences, including impairments in glucose handling and increased inter-abdominal fat. This is significant because sarcopenia, the progressive loss of muscle mass with age, starts as early as the third decade of life. The rate of muscle mass loss is about 1 to 3% per year, which can be accelerated by periods of disuse. Resistance training has been shown to be an effective strategy in mitigating muscle loss during disuse. Protein supplementation can also help, especially with adequate protein intake spread evenly throughout the day.
The importance of exercise and strength training
Dr. Oi Kawa emphasizes the importance of exercise and strength training in combating age-related muscle loss and sarcopenia. She highlights the benefits of resistance training, including improving vascular function, cognition, and muscular power. Starting strength training at an early age can help preserve strength and prevent muscle loss as individuals age. The sooner one adopts an exercise routine, the longer they can maintain their strength as they age.
The impact of step reduction on metabolism and muscle function
Dr. Oi Kawa discusses the negative consequences of step reduction on metabolism and muscle function. Studies have shown that just a few weeks of reduced steps can lead to impaired glucose handling, insulin sensitivity, and increased adiposity. Even short periods of inactivity can have long-term ramifications, especially as individuals age. Maintaining muscle mass and strength is crucial for overall health and functional ability. Combating muscle loss with exercise, particularly resistance training, is key to preserving muscle function.
The role of protein supplementation in muscle preservation
Dr. Oi Kawa highlights the importance of protein supplementation in mitigating muscle loss during periods of disuse. Adequate protein intake, with a focus on high-quality protein sources, can help maintain or increase muscle protein synthesis. Animal-based proteins are considered high-quality and provide sufficient leucine, an essential amino acid that stimulates muscle building processes. Supplementing with protein and other anabolic supplements like creatine can support muscle gains and attenuate muscle loss, particularly during periods of disuse or recovery from illness or injury.
Strategies for preserving muscle health through exercise and nutrition
Dr. Oi Kawa recommends increasing physical activity, particularly through resistance training, to preserve muscle health and functionality. For individuals with chronic conditions, rehabilitation and exercise become even more crucial in mitigating muscle loss. Consistently spreading protein intake throughout the day, especially high-quality proteins, is essential for supporting muscle protein synthesis. It's vital to break sedentary habits and prioritize exercise to mitigate the negative effects of disuse, particularly in older age.
On this week's episode of "The Discover Strength Podcast" I had the pleasure of sitting down with Dr. Sara Oikawa from the Gatorade Sports Science Institute (GSSI). Dr. Oikawa earned her Bachelor's, Master's, and PhD. from McMaster University in Hamilton, Ontario. At McMaster she had the distinction of studying under Dr. Stuart Phillips, widely regarded as the preeminent researcher on Protein Metabolism in the entire world.
Dr. Oikawa and I spoke about a paper she published in 2019 "The Impact of Step Reduction on Muscle Health in Aging: Protein and Exercise as Countermeasures." Which you can find a link to here. Our main focus of discussion was the negative impacts even small periods of step reduction or decreases in activity levels can have on aging and even younger populations. We discussed strategies to mitigate these negative consequences, and best practices through exercise and supplementation to fight of age related Sarcopenia (muscle and strength loss).
Please enjoy this episode with the brilliant Dr. Sara Oikawa, and make sure to like and subscribe to the podcast.
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