Hip muscles strength and activation in older fallers and non-fallers

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMorcelli, Mary Hellen
dc.creatorCrozara, Luciano Fernandes
dc.creatorRossi, Denise Martineli
dc.creatorLaRoche, Dain Patrick
dc.creatorMarques, Nise Ribeiro
dc.creatorHallal, Camilla Zamfolini
dc.creatorCastro, Alex
dc.creatorCardozo, Adalgiso Coscrato
dc.creatorGoncalves, Mauro
dc.creatorNavega, Marcelo Tavella
dc.date2015-03-18T15:56:19Z
dc.date2016-10-25T20:35:30Z
dc.date2015-03-18T15:56:19Z
dc.date2016-10-25T20:35:30Z
dc.date2014-01-01
dc.date.accessioned2017-04-06T07:18:18Z
dc.date.available2017-04-06T07:18:18Z
dc.identifierIsokinetics And Exercise Science. Amsterdam: Ios Press, v. 22, n. 3, p. 191-196, 2014.
dc.identifier0959-3020
dc.identifierhttp://hdl.handle.net/11449/117497
dc.identifierhttp://acervodigital.unesp.br/handle/11449/117497
dc.identifier10.3233/IES-140538
dc.identifierWOS:000340711000003
dc.identifierhttp://dx.doi.org/10.3233/IES-140538
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/928144
dc.descriptionBACKGROUND: Hip muscles dysfunction may challenge postural control mechanisms and compromise the individual in imbalance situations.OBJECTIVE: To compare hip muscles strength, power and activation between older female fallers and non-fallers.METHODS: Forty-four older adult women (60-85 yr) were divided into two groups based on having falling or not in the period of one year before evaluation, fallers (n = 20) and non-fallers (n = 24). Isokinetic strength and power were assessed during hip flexion, extension, abduction and adduction movements, while EMG signals were recorded from the internal oblique (IO), rectus femoris (RF), multifidus (MU), gluteus maximum (GM), and biceps femoris (BF).RESULTS: Fallers had significantly lower extension (p = 0.033), abduction (p = 0.001) and adduction (p = 0.002) strength as well as significantly lower power in hip flexion (p = 0.028), extension (p = 0.005) and abduction (p = 0.002) compared to non-fallers. Non-fallers had 27.4% greater activation of RF (p = 0.005) during hip flexion and 37.9% higher coactivation of IO/MU during hip abduction (p = 0.003). Significant linear regression was found between hip extension strength and GM and BF activation in both groups.CONCLUSION: Hip muscles strength and activation may increase the risk of falling in older women.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageeng
dc.publisherIos Press
dc.relationIsokinetics And Exercise Science
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectHip
dc.subjectaged
dc.subjectmuscle strength dynamometer
dc.subjectaccidental falls
dc.titleHip muscles strength and activation in older fallers and non-fallers
dc.typeOtro


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