Muscle Protein Synthesis Impairment in Older Adults
Anyone over the age of 25 should read this
Leucine & Branched Chain Amino Acids (BCAA) Improve protein metabolism in older adults.
Numerous studies have been conducted to determine how aging affects the ability of nutrition and exercise to stimulate skeletal muscle protein synthesis and to identify strategies to maximize the anabolic response of aging skeletal muscle.
Sarcopenia, or muscle loss in aging humans (1lb./year over age of 25) / ingestion of amino acids (protein) in younger adults works fine, but in older adults there is an impairment however, ingesting larger amounts of Leucine (Luecine sensitivity is suppressed in older adults) and Branched Chain Amino Acids (BCAA.S) in older adults is able to increase muscle protein synthesis in older and younger adults/. 1.7-3.5 grams.
Bottom line to increase the sensitivity on older adults of Luecine needs to go above 2.8 grams (in a 7 gram mix of BCAA’s) to reach the required “threshold” in older adults.
Why waste another workout, I went out and bought both. This short brief is not an endorsement of any products. It is a report on what has been published in the literature. *
EXERCISE AND SPORT SCIENCES REVIEWS, Vol 41. #4. October 2013