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Vitamin E protects muscles during weight lifting
ISLAMABAD: Vitamin E is known to be important in the formation of red blood cells and to protect the muscle cell membranes from damage during aerobic exercise such as running. Now, preliminary findings show that vitamin E supplements may also protect muscle cell membranes during resistance training such as weight lifting.
Dr. Bruce W. Craig from Ball State University in Muncie, Indiana, carried out a detailed research to study the phenomenon.
In the study, 11 untrained men with an average age of 25 underwent 3 weeks of weight training. Six of the men took a daily capsule of 1,200 International Units of vitamin E while the other five participants took a placebo (inactive) pill.
Craig and colleagues analyzed each man�s blood level of creatine kinase, an enzyme that is an indicator of muscle damage. The investigators measured the creatine kinase after �power tests�--three sets of upper and lower body weight lifting.
"Vitamin E supplements did protect the muscle membrane," Craig revealed. Men taking vitamin E had an increase in creatine kinase levels 48 hours after the last power test.
However, in men not taking vitamin E, that "muscle damage factor showed up sooner--at 6 hours and 24 hours after the last power test," Craig said.
Vitamin E supplementation did not affect the men�s ability to produce force or power, he added.
The researchers also found a difference in responsiveness to insulin--the hormone that regulates blood sugar--between the men taking vitamin E supplements and those taking placebo capsules. People who develop type 2, or adult-onset diabetes, often lose their sensitivity to the hormone. However, Craig said that further studies are needed to verify the results seen in the study.
Pakistan News Service - PakTribune
ISLAMABAD: Vitamin E is known to be important in the formation of red blood cells and to protect the muscle cell membranes from damage during aerobic exercise such as running. Now, preliminary findings show that vitamin E supplements may also protect muscle cell membranes during resistance training such as weight lifting.
Dr. Bruce W. Craig from Ball State University in Muncie, Indiana, carried out a detailed research to study the phenomenon.
In the study, 11 untrained men with an average age of 25 underwent 3 weeks of weight training. Six of the men took a daily capsule of 1,200 International Units of vitamin E while the other five participants took a placebo (inactive) pill.
Craig and colleagues analyzed each man�s blood level of creatine kinase, an enzyme that is an indicator of muscle damage. The investigators measured the creatine kinase after �power tests�--three sets of upper and lower body weight lifting.
"Vitamin E supplements did protect the muscle membrane," Craig revealed. Men taking vitamin E had an increase in creatine kinase levels 48 hours after the last power test.
However, in men not taking vitamin E, that "muscle damage factor showed up sooner--at 6 hours and 24 hours after the last power test," Craig said.
Vitamin E supplementation did not affect the men�s ability to produce force or power, he added.
The researchers also found a difference in responsiveness to insulin--the hormone that regulates blood sugar--between the men taking vitamin E supplements and those taking placebo capsules. People who develop type 2, or adult-onset diabetes, often lose their sensitivity to the hormone. However, Craig said that further studies are needed to verify the results seen in the study.
Pakistan News Service - PakTribune
