Drs. Baraki and Feigenbaum, fitness experts and researchers, review the top studies and fitness trends from 2023. They discuss topics such as the impact of stretching on strength performance, effectiveness of exercise training on resting blood pressure, prevalence and trends of weakness among older adults, effects of non-nutritive sweeteners on weight, bodyweight training for older adults, and weight loss strategies for 2024.
Strength training is essential for middle-aged and older adults to combat weakness and improve overall health.
Collagen protein supplementation is not effective in increasing muscle connective protein synthesis rates and lacks claimed benefits for skin and joint health.
Consuming whey protein before a meal can help regulate blood sugar levels, making it a potential strategy for managing blood sugar and reducing related health risks.
Exercise can be more effective than medications in reducing blood pressure and improving cardiovascular health, emphasizing the importance of including exercise in hypertension management.
Deep dives
Prevalence of Weakness Among Middle-Aged and Older Adults
A study found that up to 53% of Americans aged at least 50 years were weak, even when testing the dominant hand. The prevalence of weakness increased over time, indicating a growing problem. This highlights the importance of strength training for middle-aged and older adults to combat weakness and improve overall health.
Collagen Protein Supplementation and Its Effects
Collagen protein supplementation does not increase muscle connective protein synthesis rates. It is not a good source of protein and lacks the benefits claimed, such as improving skin health and joint function. Collagen protein is expensive and less effective compared to other protein sources.
Effect of Protein Timing on Postprandial Glucose Levels
Consuming whey protein before a meal can lower postprandial glucose levels in adults, especially those with impaired glycemic response. Protein intake prior to a meal may slow gastric emptying and help regulate blood sugar levels. This can be a potential strategy for managing blood sugar and reducing the risk of related health issues.
Exercise Training and Resting Blood Pressure
Exercise has a positive impact on resting blood pressure, and it can be more effective than medications in reducing blood pressure in individuals with high blood pressure. Regular aerobic and resistance training can help lower blood pressure and improve overall cardiovascular health. Including exercise in hypertension management is crucial, and it may provide additional benefits beyond medication.
The prevalence of high-calorie meals eaten outside the home has increased in recent decades
The proportion of meals that Americans eat outside the home has more than doubled in recent decades, leading to higher calorie intake and potential weight gain.
A study shows a significant increase in BMI for every meal per week consumed from a fast food or full-service restaurant
A study of nearly 1500 adults revealed that increased consumption of meals from fast food or full-service restaurants is associated with higher BMI.
The study on non-nutritive sweetened beverages and weight management suggests they are not uniquely harmful
A randomized controlled trial comparing non-nutritive sweetened beverages and water found that individuals consuming artificial sweeteners did not experience detrimental effects on weight management or health markers compared to those consuming water.
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