Whole-Body Vibration Training Does Not Modify Anthropometric Parameters and Lower Limb Strength in Elderly People
Paulo Costa Amaral, Maria Luiza de Jesus Miranda, Roberta Luksevicius Rica, Aylton Figueira Junior, Alexandre Lopes Evangelista, Francisco Luciano Pontes Junior, Cezar Augusto Souza Casarin, Martha Trindade Manchini, José Antonio Silva Junior, Andrey Jorge Serra, Danilo Sales Bocalini
Post-graduation in Aging Sciences, São Judas Tadeu University (USJT), São Paulo, Brazil
Med Sci Tech 2014; 55:6-10
Available online: 2014-01-31
The aim of this study was to evaluate the effects of a 12-week program of whole body vibration (WBV) training on body composition and lower limb strength in older women.
Material and Methods: Eighteen physically independent older women (over 60 years old) were randomized into 2 groups: untrained (UN, n=9) and whole-body training (WB, n: 9). The workout program (20-min sessions, 3 times per week for 12 weeks) consisted of vibrating platform training (frequency, 30–40 Hz; amplitude, 2–4 mm). Each training session included a 5-min warm-up period on a treadmill; 3 sets of WBV training by isometric squat exercise to 45 s and 3 min of cool-down/relaxation. We evaluated anthropometric parameters and muscle strength by senior test. Statistical analyses between groups were determined by 2-way ANOVA with repeated measures followed by Bonferroni post hoc test. Statistical differences was established at p<.05.
Results: After 12 weeks of platform training, there were no changes (p>.05) between groups in the following parameters: body weight (UN: –0.4±05, WB: –5.5±10%), BMI (UN: –2.5±5, WB: –5.5±12%), and%BF (UN: 2.6±0.2, WB: –2.5±6%). However, lean (UN: –0.2±1.6, WB: 6.2±0.5%), fat (UN: –0.7±2.7, WB: 15±1%), and muscle strength (UN: 0.9±4.9, WB: 7.2±5.5%) presented a variation (change) tendency after platform training period.
Conclusions: The results suggest that 3-month vibration training does not change body composition and muscle strength in older women.
Keywords: whole body vibration, muscle strength, anthropometric parameters, Aging