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Whole body vibration and dynamic restraint. 2008

T Hopkins, and J O Pak, and A E Robertshaw, and J B Feland, and I Hunter, and M Gage
Human Performance Research Center, Brigham Young University, Provo, Utah, USA. ty_hopkins@byu.edu

The purpose of this study was to identify changes due to whole body vibration in peroneus longus (PL) activation following ankle inversion perturbation. Participants were 22 (age 22.1 +/- 1.8 yrs, ht 168.8 +/- 8.2 cm, mass 65.5 +/- 11.2 kg) physically active male and female students with no recent history of lower extremity injury. Measurements of PL electromechanical delay (EMD), reaction time, and muscle activation were collected from two groups (WBV and control) over 3 time intervals (pretreatment, posttreatment, and 30 min posttreatment). Two-way ANOVAs were used to compare groups over time for all dependent variables. No group x time interactions were detected (p < 0.05) for any of the dependent variables. Whole body vibration did not alter PL EMD, reaction time, peak EMG, or average EMG. The use of WBV for enhancing ankle dynamic stability was not supported by this study. However, more data are needed to determine if WBV is an effective intervention in other areas of injury prevention or rehabilitation. These data were not consistent with the hypothesis that WBV enhances muscle spindle sensitivity.

UI MeSH Term Description Entries
D007866 Leg The inferior part of the lower extremity between the KNEE and the ANKLE. Legs
D008297 Male Males
D011930 Reaction Time The time from the onset of a stimulus until a response is observed. Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000222 Adaptation, Physiological The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT. Adaptation, Physiologic,Adaptations, Physiologic,Adaptations, Physiological,Adaptive Plasticity,Phenotypic Plasticity,Physiological Adaptation,Physiologic Adaptation,Physiologic Adaptations,Physiological Adaptations,Plasticity, Adaptive,Plasticity, Phenotypic
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001265 Athletic Injuries Injuries incurred during participation in competitive or non-competitive sports. Sports Injuries,Injuries, Athletic,Injuries, Sports,Athletic Injury,Injury, Athletic,Injury, Sports,Sports Injury
D014732 Vibration A continuing periodic change in displacement with respect to a fixed reference. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Vibrations
D053580 Muscle Strength The amount of force generated by MUSCLE CONTRACTION. Muscle strength can be measured during isometric, isotonic, or isokinetic contraction, either manually or using a device such as a MUSCLE STRENGTH DYNAMOMETER. Arthrogenic Muscle Inhibition,Arthrogenic Muscle Inhibitions,Inhibition, Arthrogenic Muscle,Muscle Inhibition, Arthrogenic,Strength, Muscle

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