Title of article :
Mobility, Balance, and Muscle Strength Adaptations to Short-Term Whole Body
Vibration Training Plus Oral Creatine Supplementation in Elderly Women
Author/Authors :
Samadi Ali نويسنده Department of Physical Education and Sport Science, Faculty of Humanities, Shahed University, Tehran, Iran. Samadi Ali , Rahimi Mostafa نويسنده Ph.D Student in Exercise Physiology, Exercise Physiology Research Center, Baqiyatallah University of Medical Science, Tehran, Iran. Rahimi Mostafa , Sahaf Robab نويسنده Iranian Research Center on Aging , Karimi Noureddin نويسنده Department of Physical Therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, IR Iran , Ajudani Reza نويسنده Students’ Research Committee, Baqiyatallah University of
Medical Sciences, Tehran, IR Iran , Goudarzian Maryam نويسنده Iranian Research Center on Healthy Aging, Sabzevar
University of Medical Sciences, Sabzevar, IR Iran , Ghavi Samira نويسنده Master of Science in Motor Behavior, IR
Iran
Abstract :
Background A decline in neuromuscular function can cause a
decrease in physical fitness in elderly women. Objective The present
study aimed at investigating whether whole body vibration (WBV) training
and creatine supplementation could affect muscle strength, mobility, and
balance in elderly women in short- term. Methods The participants were
22 healthy elderly women aged 60 to 80 years, who were randomly divided
into the whole-body vibration and creatine (WBV + Cr) group, whole-body
vibration and placebo (WBV + P) group, and control group. The whole-body
vibration group performed exercises for 10 days. The participants in WBV
+ Cr group consumed 20 g oral creatine supplement per day from the first
to the fifth day, which was followed by consuming 5 g of creatine per
day for the next 5 days. To assess mobility performance, a 30-meter
walking and tandem gait tests were applied. Static and dynamic balance
were measured by Flamingo and Timed-Up and Go (TUG) tests. Muscle
isometric and isotonic strength were assessed by dynamometer and leg
extension tests. Results No significant difference was found in static
balance (P = 0.11), but WBV + Cr and WBV + P groups showed better
results in dynamic balance (P = 0.001 and P = 0.009, respectively).
Moreover, leg isotonic strength improved significantly in WBV + Cr and
WBV + P groups (P = 0.001 and P = 0.001, respectively). However, leg
isometric strength and 30-meter walking performance significantly
improved only in WBV + Cr group compared to the control group. Moreover,
no significant differences were observed in isometric strength of the
hand (P = 0.89) and tandem gait test results among the groups (P =
0.25). Conclusions A short-term WBV exercise improves isotonic strength
of the leg muscle and dynamic balance, while creatine supplementation
with and without WBV training increases isometric strength of the leg
muscle and mobility in elderly women.
