Posted by Dr. Robert Portman on 11/19/2019
to
Performance Tip Of The Week
Last blog reviewed the results of a recent study which has been the subject of extensive media coverage. The study was designed to show that high insulin levels generated by high carbohydrate consumption, may increase the conversion of food into fat storage... The obvious question is what these results mean to serious endurance athletes who are trying to improve performance and maintain an ideal weight. Is insulin the good guy or the bad guy?
Posted by Dr. Robert Portman on 10/29/2019
to
Performance Tip Of The Week
A recent study published in the British Medical
Journal has received an enormous amount of publicity. In a well-designed
protocol, investigators studied the effect of a low carbohydrate diet on energy
expenditure. Traditional thinking is a calorie is a calorie whether it comes
from protein, fat or carbohydrate. The researchers found, however, that
subjects consuming a low carbohydrate diet...
Posted by Dr. Robert Portman on 10/23/2019
to
Performance Tip Of The Week
VITAMIN D: The Endurance Vitamin – Part 1 discussed the role of Vitamin D on endurance performance. Normal levels of Vitamin D range from 20 to 50 ng/ml. However a recent study suggests that athletes who have Vitamin D at the upper range of normal have improved endurance performance. The study, reported by researchers at Virginia Commonwealth University, showed a direct relation between Vitamin D levels and cardio respiratory fitness. What makes this research compelling is...
Posted by Dr. Robert Portman on 10/16/2019
to
Performance Tip Of The Week
All vitamins are essential but one, vitamin D may be particularly important for endurance athletes. Vitamin D is best known for its role in building healthy bones. Vitamin D is essential for calcium absorption. However a number of studies have shown that vitamin D plays an important role in enhancing endurance performance. For example...
Posted by Dr. Robert Portman on 8/30/2019
to
Performance Tip Of The Week
Electrolyte replenishment tablets can be extremely valuable and useful,
especially when exercising for extended periods in hot and humid conditions.
Salt pills, the original electrolyte replenishment product, were
introduced long before sports drinks. During exercise, your body loses
considerable amounts of sodium thru sweating. Although the
evaporation of sweat is essential in maintaining body temperature, loss of sodium negatively
impacts electrolyte balance and the body's rehydration mechanisms.
Posted by Dr. Robert Portman on 7/31/2019
to
Performance Tip Of The Week
That almost sounds like hearsay since the
positive benefits of regular exercise on health parameters are well documented.
Multiple studies have shown that regular exercise decreases the incidence of
cardiovascular disease and diabetes and can even impact the severity and onset
of Alzheimer’s. Non-controlled studies also show individuals that exercise
regularly have a more positive attitude about life and are better able to
focus. However, a key question is whether exercise improves cognitive
performance such as mental concentration and focus...
