Abstract:
:This study investigated the effects of two training programmes of 6 weeks combining strength and balance exercises in different proportions. One training programme [n=10; 71.4 (6.3) years] consisted mainly of strength exercises (ST) and the other programme [n=8; 71.4 (6.4) years] included a majority of balance exercises (BT). Maximal strength of lower leg muscles and centre of pressure (CoP) steadiness during upright stance in various sensory conditions were measured before and after training. The input-output relation of motor evoked potential (MEP) induced by transcranial magnetic stimulation and H reflex was also assessed in soleus during upright standing. The maximal strength of the ankle plantar flexor muscles increased after training programmes (p<0.001) with a trend for greater gain in ST (+35.7%) compared with BT (+20.8%, p=0.055). The gain in strength was positively correlated with the increase in voluntary activation (p<0.001). Both training programmes decreased maximal amplitude and mean fluctuations of CoP displacements recorded in the backward-forward direction when standing on a foam mat (p<0.05) but not on a rigid surface. The electromyographic activity of the ankle plantar flexor muscles during upright standing decreased (p<0.05) after training but not for the tibialis anterior. Results obtained for H reflex and MEP input-output relations suggest an increased efficacy of Ia afferents to activate low-threshold motor neurones and a decrease in corticospinal excitability after training. This study indicates that short-term training combining strength and balance exercises increases maximal strength and induces change in the neural control of lower leg muscles during upright standing.
journal_name
Exp Gerontoljournal_title
Experimental gerontologyauthors
Penzer F,Duchateau J,Baudry Sdoi
10.1016/j.exger.2014.11.013subject
Has Abstractpub_date
2015-01-01 00:00:00pages
38-46eissn
0531-5565issn
1873-6815pii
S0531-5565(14)00312-Xjournal_volume
61pub_type
杂志文章abstract:BACKGROUND:The World Health Organization (WHO) recently proposed an innovative model of care focusing on functional rather than disease-based perspectives, based on a construct of intrinsic capacity (IC). OBJECTIVE:This study aimed to analyze if low-grade inflammation (LGI) (chronically raised C-reactive protein - CRP...
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doi:10.1016/s0531-5565(97)00130-7
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journal_title:Experimental gerontology
pub_type: 杂志文章,meta分析
doi:10.1016/j.exger.2019.02.020
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doi:10.1016/j.exger.2014.01.013
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journal_title:Experimental gerontology
pub_type: 杂志文章
doi:10.1016/j.exger.2014.03.004
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pub_type: 杂志文章
doi:10.1016/s0531-5565(01)00118-8
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journal_title:Experimental gerontology
pub_type: 杂志文章
doi:10.1016/s0531-5565(96)00131-3
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pub_type: 杂志文章
doi:10.1016/s0531-5565(96)00073-3
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journal_title:Experimental gerontology
pub_type: 杂志文章
doi:10.1016/s0531-5565(82)80005-3
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journal_title:Experimental gerontology
pub_type: 杂志文章
doi:10.1016/s0531-5565(97)00052-1
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journal_title:Experimental gerontology
pub_type: 杂志文章
doi:10.1016/j.exger.2014.02.009
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journal_title:Experimental gerontology
pub_type: 杂志文章
doi:10.1016/j.exger.2019.110781
更新日期:2020-01-01 00:00:00
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journal_title:Experimental gerontology
pub_type: 杂志文章
doi:10.1016/j.exger.2004.03.018
更新日期:2004-07-01 00:00:00
abstract::The Senescence-Accelerated Mouse (SAM) strains are unique and appropriate models for genetic studies on aging because the SAMP strains have an "accelerated senescence" phenotype for which the SAMR strains are controls, and each SAMP strain has a strain-specific age-associated disorder. Furthermore, because they have g...
journal_title:Experimental gerontology
pub_type: 杂志文章,评审
doi:10.1016/s0531-5565(96)00060-5
更新日期:1997-01-01 00:00:00
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journal_title:Experimental gerontology
pub_type: 杂志文章
doi:10.1016/s0531-5565(03)00111-6
更新日期:2003-07-01 00:00:00
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journal_title:Experimental gerontology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.exger.2013.01.004
更新日期:2013-03-01 00:00:00
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journal_title:Experimental gerontology
pub_type: 杂志文章
doi:10.1016/0531-5565(94)00041-z
更新日期:1995-05-01 00:00:00