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Titolo:
Fatty acid profile of skeletal muscle phospholipids in trained and untrained young men
Autore:
Andersson, A; Sjodin, A; Hedman, A; Olsson, R; Vessby, B;
Indirizzi:
Uppsala Univ, Dept Publ Hlth & Caring Sci Geriatr, Clin Nutr Res Unit, S-75125 Uppsala, Sweden Uppsala Univ Uppsala Sweden S-75125 tr Res Unit, S-75125 Uppsala, Sweden Uppsala Univ, Dept Med Sci, Nutr Unit, S-75125 Uppsala, Sweden Uppsala Univ Uppsala Sweden S-75125 , Nutr Unit, S-75125 Uppsala, Sweden
Titolo Testata:
AMERICAN JOURNAL OF PHYSIOLOGY-ENDOCRINOLOGY AND METABOLISM
fascicolo: 4, volume: 279, anno: 2000,
pagine: E744 - E751
SICI:
0193-1849(200010)279:4<E744:FAPOSM>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
INSULIN-RESISTANCE; FIBER-TYPE; SENSITIVITY; GLUCOSE; INVIVO; RATS; TRANSPORT; DENSITY; PLASMA; LIPIDS;
Keywords:
physical activity; fiber type; triglycerides; dietary fat; insulin sensitivity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Andersson, A Uppsala Univ, Dept Publ Hlth & Caring Sci Geriatr, Clin Nutr Res Unit, Box609, S-75125 Uppsala, Sweden Uppsala Univ Box 609 Uppsala Sweden S-75125 Uppsala, Sweden
Citazione:
A. Andersson et al., "Fatty acid profile of skeletal muscle phospholipids in trained and untrained young men", AM J P-ENDO, 279(4), 2000, pp. E744-E751

Abstract

Endurance trained (n = 14) and untrained young men (n = 15) were compared regarding the fatty acid profile of the vastus lateralis muscle after 8 wk on diets with a similar fatty acid composition. The skeletal muscle phospholipids in the trained group contained lower proportions of palmitic acid (16:0) (-12.4%, P < 0.001) and di-homo-gamma-linolenic acid [20:3( n-6)] (-15.3%, P = 0.018), a lower n-6-to-n-3 ratio (-42.0%, P = 0.015), higher proportions of stearic acid (18:0) (19.8%, P = 0.004) and sum of n-3 polyunsaturated fatty acids (133.8%, P = 0.009), and a higher ratio between 20:4(n-6) to 20:3(n-6) (+18.4%, P = 0.006) compared with those in the untrained group. The group differences in 16:0, 20:3(n-6), 18:0/16:0, and 20:4(n-6)/20:3(n-6) were independent of fiber-type distribution. The trained group also showed a lower proportion of 16:0 (-7.9%, P < 0.001) in skeletal muscle triglycerides irrespective of fiber type. In conclusion, the fatty acid profile of the skeletal muscle differed between trained and untrained individuals, although the dietary fatty acid composition was similar. This difference wasnot explained by different fiber-type distribution alone but appears to bea direct consequence of changes in fatty acid metabolism due to the higherlevel of physical activity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 21:56:21