got any studies of proof from science on this claim?
Here is one
J Nutr Biochem.. [Epub ahead of print]
Dietary fish oil inhibits the early stage of recovery of atrophied soleus muscle in rats via Akt-p70s6k signaling and PGF2(alpha).
You JS,
Park MN,
Lee YS.
Department of Food and Nutrition, Research Institute of Human Ecology, Seoul National University, Seoul 151-742, Republic of Korea.
Skeletal muscle recovery from disuse atrophy requires the recruitment of insulin signaling for muscle growth, which is driven by protein synthesis. Dietary fish oil, which is rich in long-chain n-3 polyunsaturated fatty acids, is known to enhance insulin signaling and protein metabolism. Therefore, this study was performed to evaluate whether dietary fish oil facilitates muscle recovery during remobilization after disuse atrophy. Ten days of immobilization, followed by 3 or 13 days of remobilization, were applied to the hindlimbs of rats fed corn oil [corn oil diet group as control (CO)] or fish oil [fish oil diet group (FO)] as source of dietary fat. The immobilization-induced reductions in soleus muscle weight and myosin heavy-chain content were significantly restored by 3 days of remobilization in CO. However, in FO, these muscle recovery measurements did not significantly change until 13 days of remobilization. At 3 days of remobilization, both groups had significant elevations in p70 ribosomal S6 kinase (p70s6k) activation and at a greater extent in CO than in FO. The activation of Akt was also increased on Day 3, but it was not significant in FO. Throughout the remobilization period, levels of prostaglandin F2(alpha) (PGF2(alpha)) and cyclooxygenase-2 mRNA were significantly augmented. However, FO had a lesser increase in PGF2(alpha) than CO until Day 13. These findings indicate that dietary fish oil inhibits the early stage of soleus muscle recovery after disuse atrophy by suppressing the activation of Akt-p70s6k signaling and PGF2(alpha) synthesis.
PMID: 19954953 [PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/19954953
IN OTHER WORDS:
Omega 3 Fatty Acids Inhibits Muscle Recovery
Fish oil is high in omega-3 fatty acids, which prevent heart attack and stroke and inhibit blood vessel disease. Many people take fish oil supplements to enhance cardiovascular health and prevent premature death. Fish oil supplements might not be good for serious bodybuilders or power athletes. A study from the Seoul National University in Korea found that fish oil supplements slowed muscle recovery following 10 days of immobilization. The fish oil inhibited important pathways for protein synthesis and the formation of prostaglandins, which are involved in cell inflammation. Gov. Arnold, in his first mainstream movie Stay Hungry, said, "You must burn to grow." This study showed that he was right. While chronic inflammation is unhealthy and promotes disease, some inflammation is necessary for stimulating muscle size and strength.
(Journal of Nutritional Biochemistry, published online January 2010)
http://www.musculardevelopment.com/news/breaking-news/1965-fish-oil-inhibits-muscle-recovery-.html
HOWEVER:
"accordingly, it is probable that patients who are in the early stage of muscle rehabilitation should be cautious of excessive consumption of fish oil. However, aside from our current report, inadequate evidence on this issue warrants additional study for more definitive conclusions."
