Abstract：
OBJECTIVE:The aim of this study was to compare the optimal vibration frequency (OVF), which corresponds to maximal electromyographic muscle response during whole-body vibration, between young, middle-aged, and older women in four muscles of the lower-limbs. DESIGN:OVF was measured as the frequency corresponding to maximal root mean square of the surface electromyogram (RMSmax) during a continuous incremental protocol, with a succession of vibration frequencies from 20 to 55 Hz (A = 2 mm), on the vastus lateralis, vastus medialis, rectus femoris, and gastrocnemius lateralis muscles of the dominant lower-limb. Seventy-eight women were divided into three age groups, that is, young, 21.6 ± 2.4 yrs; middle aged, 43.0 ± 5.2 yrs; and older, 74.2 ± 6.0 yrs. RESULTS:OVF in the vastus medialis was lower in the older women than in the middle-aged and young women, whereas OVF in the vastus lateralis was lower in the older than in the young women. There were no differences in OVF between muscles within each group. RMSmax was higher in the older than in the young women in all muscles. CONCLUSIONS:Age range should be taken into consideration when determining OVF because it decreases with age. Properly individualizing the vibration protocol might greatly influence neuromuscular effects of vibration training.
journal_name
Am J Phys Med Rehabiljournal_title
American journal of physical medicine & rehabilitationauthors
Carlucci F,Orlando G,Haxhi J,Laudani L,Giombini A,Macaluso A,Pigozzi F,Sacchetti Mdoi
10.1097/PHM.0000000000000193subject
Has Abstractpub_date
2015-07-01 00:00:00pages
522-9issue
7eissn
0894-9115issn
1537-7385journal_volume
94pub_type
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journal_title：American journal of physical medicine & rehabilitation
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journal_title：American journal of physical medicine & rehabilitation
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journal_title：American journal of physical medicine & rehabilitation
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journal_title：American journal of physical medicine & rehabilitation
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journal_title：American journal of physical medicine & rehabilitation
pub_type： 临床试验,杂志文章,随机对照试验
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doi：
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