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How Does Caffeine Extend Endurance?

Posted by Dr. Robert Portman on 7/17/2018 to Performance Tip Of The Week
How Does Caffeine Extend Endurance?
Caffeine is a remarkable product for serious athletes because it extends endurance four ways, "read more" to see what they are.


Hero Amino Acids #1 - Arginine

Posted by Dr. Robert Portman on 7/9/2018 to Performance Tip Of The Week
Hero Amino Acids #1 - Arginine
Arginine improves nutrient and oxygen delivery because it is a precursor for nitrous oxide, an essential compound shown to increase blood flow.  Arginine also stimulates specific agents responsible for the transport of carbohydrate from the blood into the muscle cell.  Finally, arginine is a potent stimulator of insulin release.


Exercise Is Good For The Body, Even Better For The Brain

Posted by Dr. Robert Portman on 7/2/2018 to Performance Tip Of The Week
Exercise Is Good For The Body, Even Better For The Brain
Multiple studies have shown that serious exercisers derive many benefits in terms of cardiovascular, bone and muscle health. There have also been a number of studies showing a positive correlation between exercise and a decreased incidence of dementia and Alzheimer’s disease. These studies show that regular exercise can dramatically reduce the development and severity of dementia and Alzheimer’s later on in life.

WATCH: Dr. Portman's Father's Day Skydive With 2nd Surge

Posted by Dr. Robert Portman on 6/25/2018 to News
WATCH: Dr. Portman's Father's Day Skydive With 2nd Surge
For Father's Day this year, Dr. Portman and his son, Jon, got together for a day of father-son bonding. Some dads like a relaxing day of fishing, some play golf, and some take to the sky to share a rush of adrenaline. Check out the video here and see how he did!  

Avoid GI Upset

Posted by Dr. Robert Portman on 6/25/2018 to Performance Tip Of The Week
Avoid GI Upset
Up to 70% of endurance athletes experience GI problems during an event.  The symptoms can cause mild discomfort or be so debilitating the athlete has to withdraw. The reason GI distress is so common in endurance events is that, during intense exercise, 80% of the blood that normally goes to the GI tract is shunted to the muscles thereby affecting the movement of food from the small intestine. Here are some ways to minimize GI upset:

The Myth Of Long-Acting Carbohydrates

Posted by Dr. Robert Portman on 6/18/2018 to Performance Tip Of The Week
The Myth Of Long-Acting Carbohydrates
One of the more persistent myths in sports nutrition is the idea that long-acting carbohydrates offer an endurance advantage. This myth is perpetuated by the manufacturers of sports drinks and recovery drinks containing long-acting carbs, who trot out data showing that long-acting carbs provide a more sustained level of blood glucose than fast-acting carbs. Most educated consumers equate steady blood glucose with sustained energy. Manufacturers rely on this association to suggest that, by providing sustained levels of blood glucose, their products containing long-acting carbs also delay fatigue better than products using fast-acting carbs. In fact, just the opposite is true. Here’s why.
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