Age-Related Differences in Muscle Fatigue Vary by Contraction Type: A Meta-analysis

Avin, Keith G.; Law, Laura Frey

doi:10.2522/ptj.20100333

Cited by 82 publications

(76 citation statements)

References 52 publications

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“…As with muscle mass, loss of strength is more pronounced with age in the lower than in the upper limbs [205]. Isometric strength [208] and power [209] are also impaired in this population, while fatigability seems to be relatively preserved in elderly [210].…”

Section: Skeletal Musclementioning

confidence: 77%

Ageing and the border between health and disease

2014

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Ageing is associated with a progressive degeneration of the tissues, which has a negative impact on the structure and function of vital organs and is among the most important known risk factors for most chronic diseases. Since the proportion of the world's population aged .60 years will double in the next four decades, this will be accompanied by an increased incidence of chronic age-related diseases that will place a huge burden on healthcare resources.There is increasing evidence that many chronic inflammatory diseases represent an acceleration of the ageing process. Chronic pulmonary diseases represents an important component of the increasingly prevalent multiple chronic debilitating diseases, which are a major cause of morbidity and mortality, particularly in the elderly. The lungs age and it has been suggested that chronic obstructive pulmonary disease (COPD) is a condition of accelerated lung ageing and that ageing may provide a mechanistic link between COPD and many of its extrapulmonary effects and comorbidities. In this article we will describe the physiological changes and mechanisms of ageing, with particular focus on the pulmonary effects of ageing and how these may be relevant to the development of COPD and its major extrapulmonary manifestations. @ERSpublications Premature ageing of the lung may constitute pathogenetic mechanisms contributing to COPD

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Section: Skeletal Musclementioning

confidence: 77%

Ageing and the border between health and disease

2014

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“…Furthermore, age-related changes in muscle morphology and motor units as well as loss of strength and slowed contractile properties are associated with improved resistance to neuromuscular fatigue in older age [Allman et al,. 2002;Christie et al, 2011;Avin et al, 2011]. As torn SSP can no longer develop abduction torque at the GHJ, an additional compensatory work load may be imposed on the deltoid during arm elevation.…”

Section: Discussionmentioning

confidence: 99%

Electromyographic assessment of muscle fatigue in massive rotator cuff tear

Hawkes

Alizadehkhaiyat

Kemp

et al. 2015

Journal of Electromyography and Kinesiology

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Shoulder muscle fatigue has not been assessed in massive rotator cuff tear (MRCT). This study used EMG to measure fatigability of 13 shoulder muscles in 14 healthy controls and 11 patients with MRCT. A hand grip protocol was applied to minimise artifacts due to pain experience during measurement. The fatigue index (median frequency slope) was significantly non-zero (negative) for anterior, middle, and posterior parts of deltoid, supraspinatus and subscapularis muscles in the controls, and for anterior, middle, and posterior parts of deltoid, and pectoralis major in patients (p ≤ 0.001). Fatigue was significantly greater in patients compared to the controls for anterior and middle parts of deltoid and pectoralis major (p ≤ 0.001). A submaximal grip task provided a feasible way to assess shoulder muscle fatigue in MRCT patients, however with some limitations. The results suggest increased activation of deltoid is required to compensate for lost supraspinatus abduction torque. Increased pectoralis major fatigue in patients (adduction torque) likely reflected strategy to stabilise the humeral head against superior subluxing force of the deltoid. Considering physiotherapy as a primary or adjunct intervention for the management of MRCT, the findings of this study generate a base for future clinical studies aiming at the development of evidence-based protocol

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“…Dauguma mokslininkų, nagrinėjusių nuovargio mechanizmus, tvirtina, kad moterys gali ilgiau nei vyrai palaikyti nenutrūkstamus arba kartotinius žemo arba vidutinio intensyvumo raumens susitraukimus (Fulco et Hunter, 2014). Be to, keturgalvio šlaunies raumens nuovargio po maksimalių izometrinių susitraukimų (MVJ) tyrimų duomenys yra kontraversiški (Allman, Rice, 2002;Avin, Frey Law, 2011). Taip pat pastebimas mokslinių tyrimų, nustatančių šlaunies tiesiamųjų raumenų nuovargio ir atsigavimo po maksimalių susitraukimų skirtumus tarp lyčių ir skirtingo amžiaus tiriamųjų, trūkumas (Yoon et al, 2012; Thompson et al, 2015), galiausiai nuovargio skirtumai tiek tarp vyrų ir moterų, tiek ir tarp jaunesnio bei senyvo amžiaus tiriamųjų nėra visiškai aiškūs.…”

Section: įVadasunclassified

ge and Gender Differences of Fatigue during Sustained Maximal Isometric Contractions in Adults

Kreivėnaitė¹,

Streckis²,

Mickevičienė³

et al. 2016

Sporto Mokslas / Sport Science

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Skirtingo amžiaus ir lyties suaugusiųjų motorinės sistemos nuovargio po nepertraukiamo izometrinio krūvio skirtumai (MG 440; Medicor, Budapest, Hungary) . Eksperimentą sudarė nepertraukiamas, 30 s trunkantis izometrinis krūvis, kuriam atlikti reikia maksimalių keturgalvio šlaunies raumens susitraukimų, su įterpto impulso (P100TT) metodika, kuria apskaičiuojamas centrinės aktyvacijos rodiklis (CAR). Po eksperimento praėjus 5 ir 10 min įvertintas valingos (MVJ) ir nevalingos (20 Hz, 100 Hz) jėgos atsigavimas. Tyrimo rezultatai parodė, kad pradinės jaunų tiriamųjų nevalingos jėgos, MVJ ir CAR reikšmės buvo didesnės nei senyvo amžiaus tiriamųjų. Taip pat vyrai pasiekė didesnę MVJ ir aukštesnį CAR nei to paties amžiaus moterys (p < 0,05

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Age-Related Differences in Muscle Fatigue Vary by Contraction Type: A Meta-analysis

Cited by 82 publications

References 52 publications

Ageing and the border between health and disease

Ageing and the border between health and disease

Electromyographic assessment of muscle fatigue in massive rotator cuff tear

ge and Gender Differences of Fatigue during Sustained Maximal Isometric Contractions in Adults

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