Circulating myostatin is reduced with aging in humans but not altered by short-term, high intensity training

B.T. Elliott, Z.B. Shinwari, Z. Altayar, L. Barrios, G.A. Chaudhary, E. Hanifa, M. Parnell, T. Xenofontos, N. Sculthorpe, P. Herbert, F. Grace, L. Hayes

Research output: Contribution to journalConference article

Abstract

IntroductionAgeing involves a loss of muscle mass and function. The rate of decline is associated with negative health outcomes and increased mortality. Muscle atrophy is observed at a predictable rate from 30 years of age, however maintenance of function is seen in masters athletes > 60 years of age. Myostatin acts as a negative regulator of muscle mass and underlies hypertrophy with chronic resistance training and atrophy in chronic conditions. 
Experiment 1Declared healthy participants (n = 83, 18 - 75 years of age, 36 male, 47 female) were recruited. Body composition, metabolic rate, grip strength and 6-minute walk test were recorded. Venous blood was collected and total myostatin concentration (herein referred to as myostatin) quantified by enzyme-linked immunosorbent assay. Total myostatin was lower in females compared with males (2176.1 [135.3] vs. 2788.7 [180.2] pg.mL-1 [p = 0.007]). Stepwise regression observed that myostatin concentration is best predicted firstly by gender, then by age (r = 0.399, p = 0.02), and was not further improved by the addition of measures of metabolism, muscle mass or function. 
Experimental 2A cohort of aged sedentary (SED) males (n = 14; 63.9 [5.6] years of age) and masters athletes (lifelong exerciser [LEX]; n = 10, 61.1 [5.8] years of age) completed 6 weeks of high intensity interview training (HITT). Two way ANOVA suggested no group (SED, LEX) × time (pre, post) interaction on myostatin concentration (p = 0.649), nor a main effect of time (p = 0.757), however there was a trend towards increased myostatin in the LEX group relative to SED (p = 0.083). 
DiscussionLoss of muscle mass and function occurs at a predictable rate from ~30 years of age, however the rate of loss differs between active and inactive populations. Here we demonstrate that total circulating myostatin decreases as age increases, and differs significantly between males and females. Total circulating myostatin negatively correlates with increasing age, however alterations in myostatin do not appear after short term training interventions. Longer term activity may alter myostatin, thus our next work will follow up experiment 2 with a 3 year longitudinal analysis.
Original languageEnglish
JournalProceedings of the Physiological Society
Volume37
Publication statusPublished - 31 Jul 2016
EventProceedings of the Physiological Society - Dublin
Duration: 29 Jul 201631 Jul 2016

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Myostatin
Muscles
Athletes
Muscular Atrophy
Resistance Training
Hand Strength
Body Composition
Hypertrophy
Atrophy
Analysis of Variance
Healthy Volunteers

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Elliott, B. T., Shinwari, Z. B., Altayar, Z., Barrios, L., Chaudhary, G. A., Hanifa, E., ... Hayes, L. (2016). Circulating myostatin is reduced with aging in humans but not altered by short-term, high intensity training. Proceedings of the Physiological Society, 37.
Elliott, B.T. ; Shinwari, Z.B. ; Altayar, Z. ; Barrios, L. ; Chaudhary, G.A. ; Hanifa, E. ; Parnell, M. ; Xenofontos, T. ; Sculthorpe, N. ; Herbert, P. ; Grace, F. ; Hayes, L. / Circulating myostatin is reduced with aging in humans but not altered by short-term, high intensity training. In: Proceedings of the Physiological Society. 2016 ; Vol. 37.
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abstract = "IntroductionAgeing involves a loss of muscle mass and function. The rate of decline is associated with negative health outcomes and increased mortality. Muscle atrophy is observed at a predictable rate from 30 years of age, however maintenance of function is seen in masters athletes > 60 years of age. Myostatin acts as a negative regulator of muscle mass and underlies hypertrophy with chronic resistance training and atrophy in chronic conditions. Experiment 1Declared healthy participants (n = 83, 18 - 75 years of age, 36 male, 47 female) were recruited. Body composition, metabolic rate, grip strength and 6-minute walk test were recorded. Venous blood was collected and total myostatin concentration (herein referred to as myostatin) quantified by enzyme-linked immunosorbent assay. Total myostatin was lower in females compared with males (2176.1 [135.3] vs. 2788.7 [180.2] pg.mL-1 [p = 0.007]). Stepwise regression observed that myostatin concentration is best predicted firstly by gender, then by age (r = 0.399, p = 0.02), and was not further improved by the addition of measures of metabolism, muscle mass or function. Experimental 2A cohort of aged sedentary (SED) males (n = 14; 63.9 [5.6] years of age) and masters athletes (lifelong exerciser [LEX]; n = 10, 61.1 [5.8] years of age) completed 6 weeks of high intensity interview training (HITT). Two way ANOVA suggested no group (SED, LEX) × time (pre, post) interaction on myostatin concentration (p = 0.649), nor a main effect of time (p = 0.757), however there was a trend towards increased myostatin in the LEX group relative to SED (p = 0.083). DiscussionLoss of muscle mass and function occurs at a predictable rate from ~30 years of age, however the rate of loss differs between active and inactive populations. Here we demonstrate that total circulating myostatin decreases as age increases, and differs significantly between males and females. Total circulating myostatin negatively correlates with increasing age, however alterations in myostatin do not appear after short term training interventions. Longer term activity may alter myostatin, thus our next work will follow up experiment 2 with a 3 year longitudinal analysis.",
author = "B.T. Elliott and Z.B. Shinwari and Z. Altayar and L. Barrios and G.A. Chaudhary and E. Hanifa and M. Parnell and T. Xenofontos and N. Sculthorpe and P. Herbert and F. Grace and L. Hayes",
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Elliott, BT, Shinwari, ZB, Altayar, Z, Barrios, L, Chaudhary, GA, Hanifa, E, Parnell, M, Xenofontos, T, Sculthorpe, N, Herbert, P, Grace, F & Hayes, L 2016, 'Circulating myostatin is reduced with aging in humans but not altered by short-term, high intensity training' Proceedings of the Physiological Society, vol. 37.

Circulating myostatin is reduced with aging in humans but not altered by short-term, high intensity training. / Elliott, B.T.; Shinwari, Z.B.; Altayar, Z.; Barrios, L.; Chaudhary, G.A.; Hanifa, E.; Parnell, M.; Xenofontos, T.; Sculthorpe, N.; Herbert, P.; Grace, F.; Hayes, L.

In: Proceedings of the Physiological Society, Vol. 37, 31.07.2016.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Circulating myostatin is reduced with aging in humans but not altered by short-term, high intensity training

AU - Elliott, B.T.

AU - Shinwari, Z.B.

AU - Altayar, Z.

AU - Barrios, L.

AU - Chaudhary, G.A.

AU - Hanifa, E.

AU - Parnell, M.

AU - Xenofontos, T.

AU - Sculthorpe, N.

AU - Herbert, P.

AU - Grace, F.

AU - Hayes, L.

PY - 2016/7/31

Y1 - 2016/7/31

N2 - IntroductionAgeing involves a loss of muscle mass and function. The rate of decline is associated with negative health outcomes and increased mortality. Muscle atrophy is observed at a predictable rate from 30 years of age, however maintenance of function is seen in masters athletes > 60 years of age. Myostatin acts as a negative regulator of muscle mass and underlies hypertrophy with chronic resistance training and atrophy in chronic conditions. Experiment 1Declared healthy participants (n = 83, 18 - 75 years of age, 36 male, 47 female) were recruited. Body composition, metabolic rate, grip strength and 6-minute walk test were recorded. Venous blood was collected and total myostatin concentration (herein referred to as myostatin) quantified by enzyme-linked immunosorbent assay. Total myostatin was lower in females compared with males (2176.1 [135.3] vs. 2788.7 [180.2] pg.mL-1 [p = 0.007]). Stepwise regression observed that myostatin concentration is best predicted firstly by gender, then by age (r = 0.399, p = 0.02), and was not further improved by the addition of measures of metabolism, muscle mass or function. Experimental 2A cohort of aged sedentary (SED) males (n = 14; 63.9 [5.6] years of age) and masters athletes (lifelong exerciser [LEX]; n = 10, 61.1 [5.8] years of age) completed 6 weeks of high intensity interview training (HITT). Two way ANOVA suggested no group (SED, LEX) × time (pre, post) interaction on myostatin concentration (p = 0.649), nor a main effect of time (p = 0.757), however there was a trend towards increased myostatin in the LEX group relative to SED (p = 0.083). DiscussionLoss of muscle mass and function occurs at a predictable rate from ~30 years of age, however the rate of loss differs between active and inactive populations. Here we demonstrate that total circulating myostatin decreases as age increases, and differs significantly between males and females. Total circulating myostatin negatively correlates with increasing age, however alterations in myostatin do not appear after short term training interventions. Longer term activity may alter myostatin, thus our next work will follow up experiment 2 with a 3 year longitudinal analysis.

AB - IntroductionAgeing involves a loss of muscle mass and function. The rate of decline is associated with negative health outcomes and increased mortality. Muscle atrophy is observed at a predictable rate from 30 years of age, however maintenance of function is seen in masters athletes > 60 years of age. Myostatin acts as a negative regulator of muscle mass and underlies hypertrophy with chronic resistance training and atrophy in chronic conditions. Experiment 1Declared healthy participants (n = 83, 18 - 75 years of age, 36 male, 47 female) were recruited. Body composition, metabolic rate, grip strength and 6-minute walk test were recorded. Venous blood was collected and total myostatin concentration (herein referred to as myostatin) quantified by enzyme-linked immunosorbent assay. Total myostatin was lower in females compared with males (2176.1 [135.3] vs. 2788.7 [180.2] pg.mL-1 [p = 0.007]). Stepwise regression observed that myostatin concentration is best predicted firstly by gender, then by age (r = 0.399, p = 0.02), and was not further improved by the addition of measures of metabolism, muscle mass or function. Experimental 2A cohort of aged sedentary (SED) males (n = 14; 63.9 [5.6] years of age) and masters athletes (lifelong exerciser [LEX]; n = 10, 61.1 [5.8] years of age) completed 6 weeks of high intensity interview training (HITT). Two way ANOVA suggested no group (SED, LEX) × time (pre, post) interaction on myostatin concentration (p = 0.649), nor a main effect of time (p = 0.757), however there was a trend towards increased myostatin in the LEX group relative to SED (p = 0.083). DiscussionLoss of muscle mass and function occurs at a predictable rate from ~30 years of age, however the rate of loss differs between active and inactive populations. Here we demonstrate that total circulating myostatin decreases as age increases, and differs significantly between males and females. Total circulating myostatin negatively correlates with increasing age, however alterations in myostatin do not appear after short term training interventions. Longer term activity may alter myostatin, thus our next work will follow up experiment 2 with a 3 year longitudinal analysis.

M3 - Conference article

VL - 37

JO - Proceedings of the Physiological Society

JF - Proceedings of the Physiological Society

SN - 1749-6187

ER -