Archive for the ‘Exercise’ Category

Fat oxidation rates

Tuesday, July 17th, 2007

A small group of obese and non-obese adolescents were tested to determine maximum fat oxidation rates during exercise. Maximum fat oxidation occured at around 58% maximum heart rate. Males had slightly higher fat oxidation at that intensity. Interestingly, there was no difference between the obese and non-obese groups. Fat oxidation rates ...

The effect of exercise intensity on glucose tolerance

Monday, June 18th, 2007

A glucose tolerance test (GTT) was performed on subjects following either low intensity, high volume resistance exercise or high intensity, low volume resistance exercise. The high intensity group attained better glucose tolerance than the low intensity group. This is consistant with a greater glycogen depletion with high intensity exercise. Abstract Related posts:Effect of ...

Exercise and Fish Oil

Monday, June 11th, 2007

Another study showing the synergism of fish oil supplementation and exercise. Fish oil alone was enough to reduce triglycerides. But the addition of exercise significantly increased HDL, above what can be achieved with either fish oil or exercise alone. The fish oil dosage was 4 grams per day. Abstract Related posts:Fish oil and ...

The affect of dietary intake on hormones during strength training

Monday, June 4th, 2007

Older Finnish men began a strength training program, half of them also receiving dietary counseling. The counseled group increased carbohydrate and fiber intake, consumed less total fat but improved the polyunsaturated/saturated fat ratio. Both groups experienced similar results with regard to strength and muscle mass increases. The training effect was correlated ...

Fish oil and exercise

Thursday, May 31st, 2007

Combining fish oil with aerobic exercise provides benefits greater than either independently. The subjects received 6 grams per day of fish oil. A healthy dose of just over a teaspoon. Both fish oil supplementation and aerobic exercise reduce body fat. Fish oil reduces triglycerides, increases HDL and improves arterial vasodilation. Exercise ...

Ultraendurance exercise and fat utilization

Monday, May 28th, 2007

Not suprisingly, ultraendurance athletes utilize large quantities of body fat to fuel their races. In fact, 11% of their body fat was burned off in a 4 to 5 day races. Respiratory exchange ratio and plasma fatty acids showed increased fat utilization during exercise. The researchers speculated that the changes were the ...

Muscle strength and insulin sensitivity

Thursday, May 24th, 2007

There is a significant, direct relationship between muscle strength and insulin sensitivity. Not suprisingly, an association was also found between lean body mass and muscle strength. Resistance training depletes intramuscular glycogen stores, which enhances glucose uptake all by itself. Resistance training can also positively affect hormone levels. Abstract Related posts:Fatness, Fitness and Insulin ...

Fat oxidation rates and exercise intensity

Monday, May 21st, 2007

Recreational athletes were tested at multiple aerobic exercise intensities (55%, 65%, 75%, 85% and 95% of anaerobic threshold) to determine fat oxidation rates. No difference was found between the intensity and energy from fat metabolism. The additional energy demands of higher intensity exercise must have been met by carbohydrates. Unfortunately, the ...