Your brain and muscles communicate especially during exercise. During intense exercise, your muscles release markers of muscle damage which travel to the brain. The brain then releases specific signals that increase your feelings of fatigue. This interchange between brain and muscle serves as a protective function so you don't severely damage your muscles. A recent study found that...
- Can The Ketogenic Diet Enhance Endurance Performance? (Part 1)
- Can Chocolate Reduce Post Exercise Inflammation?
- Does Intermittent Fasting Work?
- Transforming Your Fat Cells Into Fat Burning Engines
- What Color Are Your Fat Cells, White, Brown Or Beige?
- The Endorphin Myth
- Can A Tattoo Impair Endurance Performance?
- Too Much Pain May Limit Performance Improvement
- COVID-19 Vaccine & Endurance Athletes
- Caffeine & Sports Performance
- Can Exercise Reduce The Severity Of COVID-19?
- What Is The Best Protein Source?
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Posted by Dr. Robert Portman on 9/2/2020 to Performance Tip Of The Week
Posted by Dr. Robert Portman on 8/28/2020 to Performance Tip Of The Week
Most of the country is experiencing stifling temperatures, some areas in excess of 100 degrees. The impact of heat on exercise performance is well documented. Heat causes a reduction in muscle force and sustained contraction. Logically, it would seem that the precipitating event in reducing...
Posted by Dr. Robert Portman on 8/24/2020 to Performance Tip Of The Week
I find the headline surprising, since many of the stupid decisions we make is often under the influence of alcohol. However, a recent study that examined alcohol consumption and brain health is quite provocative. The researchers tracked 20,000 Americans over nine years and correlated low to moderate drinking with a lower rate of cognitive decline and consistently higher cognitive function. The study didn’t necessarily say that alcohol preserved brain function but only that there was a positive correlation between moderate drinking and brain health.
Posted by Dr. Robert Portman on 8/19/2020 to Performance Tip Of The Week
Previous Performance Tips have featured reports on the benefits of caffeine on endurance performance, recovery, and outcomes in a number of chronic diseases. Because of caffeine’s effect on endurance and recovery one could logically conclude that caffeine would positively improve lean body mass by raising the training level. However a recent study, using CDC data, analyzed the relationship between the number of cups of coffee drank per day and both total body fat percentage and abdominal fat.
Posted by Dr. Robert Portman on 7/31/2020 to Performance Tip Of The Week
Although female athletes are capable of extraordinary achievement, a number of studies have investigated performance differences between male and female endurance athletes. Their findings are quite interesting. One study evaluated the amount of energy used by the respiratory muscles in male and female athletes. Respiratory muscles are muscles found in the rib cage and diaphragm that are critical for breathing. The researchers measured the amount of energy respiratory muscles consumed in male and female athletes during maximal exercise intensities.
Posted by Dr. Robert Portman on 7/30/2020 to Performance Tip Of The Week
Nutrient utilization plays a critical role in determining endurance performance. Mitochondria, the energy factories of muscles, have the ability to convert all three nutrients, carbohydrate, fat and protein, into energy. The mitochondria have developed sophisticated sensing mechanisms to fuel working muscles when nutrient stores are constantly changing. In many ways, nutrient delivery to mitochondria can be likened to a highway. For exercise of short duration, traffic on the mitochondrial highway is primarily carbohydrate. However...