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Do Women Athletes Work Harder Than Men?

Posted by Dr. Robert Portman on 7/31/2020 to Performance Tip Of The Week
Do Women Athletes Work Harder Than Men?

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.


Traveling The Carb/Fat Highway

Posted by Dr. Robert Portman on 7/30/2020 to Performance Tip Of The Week
Traveling The Carb/Fat Highway
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...
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