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Effects of age and resistance exercise on skeletal muscle interstitial prostaglandin F2α.
- Source :
- Prostaglandins Leukotrienes & Essential Fatty Acids; Mar2006, Vol. 74 Issue 3, p175-181, 7p
- Publication Year :
- 2006
-
Abstract
- Abstract: Prostaglandin (PG) F<subscript>2α</subscript> has been shown to contribute to the anabolic events in skeletal muscle. We measured the skeletal muscle interstitial concentration of PGF<subscript>2α</subscript> at rest and following a standard bout of resistance exercise in eight young (27±2 year) and eight old (75±4 year) men. Interstitial PGF<subscript>2α</subscript> concentration was determined from microdialysate samples obtained from two microdialysis probes placed in the vastus lateralis. Microdialysates were collected 1h pre- and 5–6, 8–9, and 24–25h postexercise. The exercise bout consisted of 4 exercises (3 sets of 8 replications at 80% 1RM per exercise) emphasizing the quadriceps. Interstitial PGF<subscript>2α</subscript> levels were not different (P>0.05) between young and old at rest (1.50±0.35 vs. 1.52±0.30ngml<superscript>−1</superscript>) or at any time point following the resistance exercise bout. For the young and old combined there was a change (P<0.05) in PGF<subscript>2α</subscript> levels at 5–6h (93%) and 8–9h (95%), which had returned to preexercise levels by 24–25h. These results show that PGF<subscript>2α</subscript> is increased in skeletal muscle following a standard bout of resistance exercise and aging does not alter interstitial levels of this PG at rest or after exercise. These data, coupled with previous findings, suggest that the anabolic factor PGF<subscript>2α</subscript> should be considered when discussing the complex processes that regulate muscle mass in young and old individuals. [Copyright &y& Elsevier]
- Subjects :
- PROSTAGLANDINS
INFLAMMATORY mediators
SKELETAL maturity
AGING
Subjects
Details
- Language :
- English
- ISSN :
- 09523278
- Volume :
- 74
- Issue :
- 3
- Database :
- Supplemental Index
- Journal :
- Prostaglandins Leukotrienes & Essential Fatty Acids
- Publication Type :
- Academic Journal
- Accession number :
- 22612975
- Full Text :
- https://doi.org/10.1016/j.plefa.2006.01.001