Matches in SemOpenAlex for { <https://semopenalex.org/work/W3204661359> ?p ?o ?g. }
- W3204661359 endingPage "404" @default.
- W3204661359 startingPage "394" @default.
- W3204661359 abstract "The skeletal muscle anabolic effects of n-3 polyunsaturated fatty acids (n-3 PUFA) appear favoured towards women; a property that could be exploited in older women who typically exhibit poor muscle growth responses to resistance exercise training (RET). Here we sought to generate novel insights into the efficacy and mechanisms of n-3 PUFA alongside short-term RET in older women.We recruited 16 healthy older women (Placebo n = 8 (PLA): 67±1y, n-3 PUFA n = 8: 64±1y) to a randomised double-blind placebo-controlled trial (n-3 PUFA; 3680 mg/day versus PLA) of 6 weeks fully-supervised progressive unilateral RET (i.e. 6 × 8 reps, 75% 1-RM, 3/wk-1). Strength was assessed by knee extensor 1-RM and isokinetic dynamometry ∼ every 10 d. Thigh fat free mass (TFFM) was measured by DXA at 0/3/6 weeks. Bilateral vastus lateralis (VL) biopsies at 0/2/4/6 weeks with deuterium oxide (D2O) dosing were used to determine MPS responses for 0-2 and 4-6 weeks. Further, fibre cross sectional area (CSA), myonuclei number and satellite cell (SC) number were assessed, alongside muscle anabolic/catabolic signalling via immunoblotting.RET increased 1-RM equally in the trained leg of both groups (+23 ± 5% n-3 PUFA vs. +25 ± 5% PLA (both P < 0.01)) with no significant increase in maximum voluntary contraction (MVC) (+10 ± 6% n-3 PUFA vs. +13 ± 5% PLA). Only the n-3 PUFA group increased TFFM (3774 ± 158 g to 3961 ± 151 g n-3 PUFA (P < 0.05) vs. 3406 ± 201 g to 3561 ± 170 PLA) and type II fibre CSA (3097 ± 339 μm2 to 4329 ± 264 μm2 n-3 PUFA (P < 0.05) vs. 2520 ± 316 μm2 to 3467 ± 303 μm2 in PL) with RET. Myonuclei number increased equally in n-3 PUFA and PLA in both type I and type II fibres, with no change in SC number. N-3 PUFA had no added benefit on muscle protein synthesis (MPS), however, during weeks 4-6 of RET, absolute synthesis rates (ASR) displayed a trend to increase with n-3 PUFA only (5.6 ± 0.3 g d-1 to 7.1 ± 0.5 g d-1 n-3 PUFA (P = 0.09) vs. 5.5 ± 0.5 g d-1 to 6.5 ± 0.5 g d-1 PLA). Further, the n-3 PUFA group displayed greater 4EBP1 activation after acute RE at 6 weeks.n3-PUFA enhanced RET gains in muscle mass through type II fibre hypertrophy, with data suggesting a role for MPS rather than via SC recruitment. As such, the present study adds to a literature base illustrating the apparent enhancement of muscle hypertrophy with RET in older women fed adjuvant n3-PUFA." @default.
- W3204661359 created "2021-10-11" @default.
- W3204661359 creator A5000690009 @default.
- W3204661359 creator A5007398156 @default.
- W3204661359 creator A5007411954 @default.
- W3204661359 creator A5013206217 @default.
- W3204661359 creator A5035928273 @default.
- W3204661359 creator A5040336531 @default.
- W3204661359 creator A5042045075 @default.
- W3204661359 creator A5042448262 @default.
- W3204661359 creator A5044879937 @default.
- W3204661359 creator A5045979552 @default.
- W3204661359 creator A5050053783 @default.
- W3204661359 creator A5050091741 @default.
- W3204661359 creator A5051056638 @default.
- W3204661359 creator A5058339050 @default.
- W3204661359 creator A5073356790 @default.
- W3204661359 creator A5075032246 @default.
- W3204661359 creator A5090534574 @default.
- W3204661359 date "2021-12-01" @default.
- W3204661359 modified "2023-10-10" @default.
- W3204661359 title "Omega-3 supplementation during unilateral resistance exercise training in older women: A within subject and double-blind placebo-controlled trial" @default.
- W3204661359 cites W1557051613 @default.
- W3204661359 cites W1598106197 @default.
- W3204661359 cites W1788708004 @default.
- W3204661359 cites W1823351839 @default.
- W3204661359 cites W1870980090 @default.
- W3204661359 cites W1877102901 @default.
- W3204661359 cites W1976344872 @default.
- W3204661359 cites W1987071203 @default.
- W3204661359 cites W1989017729 @default.
- W3204661359 cites W1990435249 @default.
- W3204661359 cites W1993988048 @default.
- W3204661359 cites W2019584487 @default.
- W3204661359 cites W2027623349 @default.
- W3204661359 cites W2070907213 @default.
- W3204661359 cites W2072884377 @default.
- W3204661359 cites W2087317993 @default.
- W3204661359 cites W2091380694 @default.
- W3204661359 cites W2095188008 @default.
- W3204661359 cites W2099556011 @default.
- W3204661359 cites W2114134430 @default.
- W3204661359 cites W2116474837 @default.
- W3204661359 cites W2118035665 @default.
- W3204661359 cites W2121168414 @default.
- W3204661359 cites W2123569576 @default.
- W3204661359 cites W2128116691 @default.
- W3204661359 cites W2131108450 @default.
- W3204661359 cites W2131620744 @default.
- W3204661359 cites W2132035753 @default.
- W3204661359 cites W2141458607 @default.
- W3204661359 cites W2141893506 @default.
- W3204661359 cites W2143870509 @default.
- W3204661359 cites W2148166373 @default.
- W3204661359 cites W2152817152 @default.
- W3204661359 cites W2154042628 @default.
- W3204661359 cites W2164863345 @default.
- W3204661359 cites W2169490663 @default.
- W3204661359 cites W2292846232 @default.
- W3204661359 cites W2396613666 @default.
- W3204661359 cites W2487890137 @default.
- W3204661359 cites W2517166961 @default.
- W3204661359 cites W2521511954 @default.
- W3204661359 cites W2556298806 @default.
- W3204661359 cites W2604674779 @default.
- W3204661359 cites W2735395116 @default.
- W3204661359 cites W2738877633 @default.
- W3204661359 cites W2751693540 @default.
- W3204661359 cites W2884048133 @default.
- W3204661359 cites W2884410321 @default.
- W3204661359 cites W2891987221 @default.
- W3204661359 cites W2894404417 @default.
- W3204661359 cites W2910646116 @default.
- W3204661359 cites W2911536716 @default.
- W3204661359 cites W2969682274 @default.
- W3204661359 doi "https://doi.org/10.1016/j.clnesp.2021.09.729" @default.
- W3204661359 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34857226" @default.
- W3204661359 hasPublicationYear "2021" @default.
- W3204661359 type Work @default.
- W3204661359 sameAs 3204661359 @default.
- W3204661359 citedByCount "7" @default.
- W3204661359 countsByYear W32046613592022 @default.
- W3204661359 countsByYear W32046613592023 @default.
- W3204661359 crossrefType "journal-article" @default.
- W3204661359 hasAuthorship W3204661359A5000690009 @default.
- W3204661359 hasAuthorship W3204661359A5007398156 @default.
- W3204661359 hasAuthorship W3204661359A5007411954 @default.
- W3204661359 hasAuthorship W3204661359A5013206217 @default.
- W3204661359 hasAuthorship W3204661359A5035928273 @default.
- W3204661359 hasAuthorship W3204661359A5040336531 @default.
- W3204661359 hasAuthorship W3204661359A5042045075 @default.
- W3204661359 hasAuthorship W3204661359A5042448262 @default.
- W3204661359 hasAuthorship W3204661359A5044879937 @default.
- W3204661359 hasAuthorship W3204661359A5045979552 @default.
- W3204661359 hasAuthorship W3204661359A5050053783 @default.
- W3204661359 hasAuthorship W3204661359A5050091741 @default.
- W3204661359 hasAuthorship W3204661359A5051056638 @default.
- W3204661359 hasAuthorship W3204661359A5058339050 @default.