Improvement of Stance Control and Muscle Performance Induced by Focal Muscle Vibration in Young-Elderly Women: A Randomized Controlled Trial |
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Authors: | Guido M. Filippi MD Orazio Brunetti PhD Fabio M. Botti MD Roberto Panichi PhD Mauro Roscini Filippo Camerota MD Matteo Cesari MD Vito E. Pettorossi MD |
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Affiliation: | aInstitute of Human Physiology, Catholic University, Rome;bDepartment of Internal Medicine, Section of Human Physiology, University of Perugia, Italy;cDepartment of Physical Medicine and Rehabilitation, University of Rome La Sapienza, Italy;dDepartment of Aging and Geriatric Research, University of Florida, Institute on Aging, Gainesville, FL |
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Abstract: | Filippi GM, Brunetti O, Botti FM, Panichi R, Roscini M, Camerota F, Cesari M, Pettorossi VE. Improvement of stance control and muscle performance induced by focal muscle vibration in young-elderly women: a randomized controlled trial.ObjectiveTo determine the effect of a particular protocol of mechanical vibration, applied focally and repeatedly (repeated muscle vibration [rMV]) on the quadriceps muscles, on stance and lower-extremity muscle power of young-elderly women.DesignDouble-blind randomized controlled trial; 3-month follow-up after intervention.SettingHuman Physiology Laboratories, University of Perugia, Italy.ParticipantsSedentary women volunteers (N=60), randomized in 3 groups (mean age ± SD, 65.3±4.2y; range, 60–72).InterventionrMV (100Hz, 300–500μm, in three 10-minute sessions a day for 3 consecutive days) was applied to voluntary contracted quadriceps (vibrated and contracted group) and relaxed quadriceps (vibrated and relaxed group). A third group received placebo stimulation (nonvibrated group).Main Outcome MeasuresArea of sway of the center of pressure, vertical jump height, and leg power.ResultsTwenty-four hours after the end of the complete series of applications, the area of sway of the center of pressure decreased significantly by approximately 20%, vertical jump increased by approximately 55%, and leg power increased by approximately 35%. These effects were maintained for at least 90 days after treatment.ConclusionsrMV is a short-lasting and noninvasive protocol that can significantly and persistently improve muscle performance in sedentary young-elderly women. |
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Keywords: | Aged Rehabilitation Women |
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