Measurement of the precise alterations
in immune system function after exercise are complicated by several factors including
intensity and duration of activity, state of training and basic day-to-day and
person-to-person variations. White blood cell counts are typically elevated after acute
bouts of exercise. The more intense and the longer duration the exercise is, the higher
the elevations usually are. Marathon running is estimated to increase risk of infection by
almost six-fold. Much of the increased white blood cell count is due to release of cells
from tissues into the circulation and is rapidly corrected during recovery. Prolonged
intense activity, however, may decrease white blood cell counts due to their migration
from the circulation to areas of damage in the muscles. Exercise intensity plays an
important role in immune system stimulation in that secretion of catecholamines, such as
the stress-hormone cortisol, may initially stimulate white blood cell release from
tissues, but in states of chronic over-training may actually suppress this action.
-
| While excessive physical activity that
leads to muscle injury and over-training can compromise immune function, moderate
levels of exercise are thought to increase resistance to infection. Adequate nutrition is
important, however, because inadequate levels of amino
acids such as glutamine may impair growth and function of immune
cells.Moderate levels of regular aerobic and resistance exercise have positive effects on
immune system function. Chronic bouts of high intensity, long duration exercise, however,
may lead to over-training,
muscle injury and adverse effects in immune system function. Whether a given level of
exercise is excessive for an individual depends on many factors including the athlete's
state of training, the volume and intensity of training and recovery as well as the
athlete's level of stress and overall state of nutrition. |
 - Ask the Expert about Muscle
Building Supplements (click)
|
|
 |
Product Recommendations |
|
Advanced Therapeutics Colostrum Rx-Foundation is scientifically engineered to
deliver the most concentrated and consistent immune system support available. 2 capsules
provides: 1020 mg Protein, 1220 mg Colostyn-50 (proprietary, standardized bovine
colostrum/serum concentrate), 540 mg Immunoglobulin G (lgG)(minimum), 60 mg Proline-rich
Polypeptides (minimum) |
- New - Chain Reaction - "Studies have proven that the
formula in BCAA Stack can increase nitrogen retention."
-
|
While taking this
powerful stack in addition to a calorie restricted diet, individuals gained lean mass
while dramatically decreasing body fat. Whether you've dieting to make weight or are
trying to maintain (or even increase) lean mass, studies prove there's no better amino
acid combination than the BCAA/Glutamine stack.
  |
|
