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What You Should Know About Insulin

Posted by Dr. Robert Portman on 5/10/2019 to Performance Tip Of The Week
What You Should Know About Insulin
Few hormones are so unfairly demonized as insulin. To read the popular media, insulin is the devil- the cause of obesity, type 2 diabetes and cardiovascular disease. A search on the internet brings up thousands of negative articles. Insulin is the driving force behind the low carb diet trend. The problem with the demonization of insulin is that it is more exaggeration than fact.

Don't Sweat It

Posted by Dr. Robert Portman on 4/26/2019 to Performance Tip Of The Week
Don't Sweat It
Sweating plays a critical role in maintain exercise performance. During moderate to intense exercise your muscles generate considerable amounts of heat. This heat is dissipated through sweating which can involve considerable fluid loss. Small losses in body fluid via sweating can have major consequences on performance... 

Work Out Harder, Easier

Posted by Dr. Robert Portman on 4/11/2019 to Performance Tip Of The Week
Work Out Harder, Easier

Although the effect of caffeine on endurance performance is well documented, a recent study by researchers from South Africa investigated the possible mechanisms why. The researchers studied the effect of caffeine in two triathlons held two weeks apart. The study was conducted with male and female triathletes who trained an average of 12.8 hours per week. The triathletes consumed caffeine 60 minutes before their triathlon and time to completion data was measured.

Four Minutes More For Greater Endurance

Posted by Dr. Robert Portman on 3/21/2019 to Performance Tip Of The Week
Four Minutes More For Greater Endurance

With demands of family, work, social life and exercise, the serious endurance athlete is always pressed for time. Here’s a way to add four minutes to your workout and improve your endurance. We all know the recovery window is the 45 minute interval following exercise where the muscle’s metabolic machinery is activated. Multiple studies have shown that consuming the right combination of nutrients pays big dividends in terms of...

Optimal Fueling

Posted by Dr. Robert Portman on 2/13/2019 to Performance Tip Of The Week
Optimal Fueling
How much carbohydrate should be consumed during exercise to improve endurance performance. The basic question was answered by researchers decades ago. Carbohydrate consumption enhances endurance performance. Subsequent research has better defined the relationship between consumption and performance. For example short acting high glycemic carbohydrate has a greater positive effect than longer acting carbohydrates. 

Putting Appetite Back into Balance

Posted by Dr. Robert Portman on 2/6/2019 to Performance Tip Of The Week
Putting Appetite Back into Balance
Our appetite is controlled by a complicated interplay of hormones released by the brain and the gut which make us feel hungry or full (satiated). We now know there are many external influences which determine the release of hunger or satiety hormones such as energy needs, nutrient composition of our meals and timing between meals. For example protein and fat are more satiating than carbohydrate.

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