جستجوی مقالات مرتبط با کلیدواژه « neuromuscular performance » در نشریات گروه « پزشکی »

Any disorder in balance is one of the influencing factors on falling risk which its increasing can decrease falling risk and consequent problems. Thus the aim of study was to compare and examine the effects of aquatic, Whole Body Vibration and concurrent training on neuromuscular performance, balance and risk of falling in elderly females. 48 females were randomized consecutively into four Groups: the group1 submitted for the aquatic training(13), the group 2 submitted for the Whole Body Vibration Training (WBV)(11), the group 3 submitted for the aquatic training plus Whole Body Vibration Training (concurrent Group)(12), and the Control group(12). Neuromuscular performance, balance and risk of falling was evaluated in all subjects, before, 2 and 4 and 6 weeks after beginning the training and 2 and 4 weeks after completion the exercise period. A one-way ANOVA and two way repeated measure ANOVA used to analyze the data. Results of this study showed that there are significant difference between aquatic, WBV and concurrent training with control group. However, there is significant improvement in neuromuscular performance, balance and risk of falling in WBV and concurrent training groups in 2 weeks after beginning of training, but there is significant improvement in neuromuscular performance, balance and risk of falling in Aquatic training group in 4 weeks after beginning of training. Also, after doing retention test, there is significant decreasing in neuromuscular performance, balance and risk of falling in WBV and concurrent training groups in 2 weeks after detraining period, but there is significant decreasing in neuromuscular performance, balance and risk of falling in Aquatic training group in 4 weeks after detraining period. Due to results, using Aquatic, Whole Body Vibration and concurrent exercises are recommended to decrease likelihood of falling and improve neuromuscular performance and balance in elderly females.

The aim of this study was to evaluate the short-term effects of creatine supplementation in combination with vibration exercise on physical fitness and neuromuscular performance of elderly women. The study population included women aged over 60 years. For this purpose, 22 healthy elderly females were selected and randomly divided into three groups: vibration exercise with creatine supplementation (n=8), vibration exercise with placebo (n=7), and control (n=7) groups. Vibration exercise with creatine supplementation group, performed exercises which included six posture exercises, based on the principle of overload, for 10 days, with a frequency of 30-35 Hz and amplitude of 5 mm; and at the same time, received 20 grams creatine, for the first 5-day, and 5 grams creatine, for the later 5-day, daily. Vibration exercise with placebo group, instead of creatine, received dextrose. Evaluation factors were the static strength of hands and feet (dynamometer), the dynamic power of leg (knee open device), the static balance (standing on one leg), and dynamic balance (lifted and walking), the lower body performance (30 meters walk, tandem gate and get up and sit on a chair), and flexibility (sit and delivery). ANOVA and analysis of covariance statistical tests were used to examine the main effects; and post hoc Tukey and Sidak tests, were used to compare pairs of groups (P≤0.05). The results of ANOVA showed that there was no significant difference between the groups in the static power (P=0.89), lower body function in tandem gate test (P=0.25), and flexibility (P=0.59); but the static power and performance of leg in 30-meter walk test, was better in vibration exercise with creatine supplementation group than the control group (P<0.016 and 0.02, respectively). In addition, the results of covariance test showed that there was no significant difference between the groups in the static balance variables (P=0.11) and the getting up and sitting on performances (P=0.68); but both groups of vibration exercise with creatine supplementation, and vibration exercise and placebo, had better performance in the dynamic balance (P=0.001and P=0.009, respectively), and the dynamic power of leg (P=0.001and P=0.001, respectively), than the control group. Regarding to the results of the present study, it seems that vibration exercise with creatine supplementation in the short term, can lead to a significant improvement in the static and dynamic power of feet, dynamic balance and 30-meter walk performance in elderly women. Furthermore, it appears that creatine supplementation along with whole-body vibration exercise may have further impact on the static power of leg, and 30-meter walk performance.

Whole body vibration exercise by affecting the neuromuscular system and mechanical mechanisms increase muscles strength. This study investigated the effect of whole body vibration training on neuromuscular function of elderly men. Based on a randomized controlled trial design, 72 retired elderly men with a mean age of 73.00 ± 2.67 years participated in this study. After obtaining subject's consent, they were divided into the four groups based on Bosco training program in a period of 6 weeks. Neuromuscular function after training protocol was evaluated by the standard 5-chair and timed up and go (TUG) tests. Then, data were analyzed. 5-chair practice and timed up and go tests results after whole body vibration exercise for three sessions in a week showed significantly improvement in nerve-muscle function (P < 0.05). Besides, the whole body vibration exercises significantly reduced the times of 5-chair practice and timed up and go tests (P < 0.05 for both) The whole body vibration exercises can significantly affect the nerve-muscle function in elderly and reduce the likelihood of falling.

Whole body vibration training can improve muscular force by affecting neuromuscular system and mechanical mechanisms. The aim of this study was to investigate the effect of an 8 week whole body vibration training (WBVT) on neuromuscular performance in healthy elderly women. Based on an experimental and BOSCO training protocol، thirty elderly female women (50±5. 5 yrs old) were selected and divided randomly into two experimental and control groups. Before and after vibration training، timed Up & Go and 5-chair stand tests were performed to evaluate neuromuscular performance in elderly women. Data were processed with SPSS software version 18 and one way ANOVA test was used for data analysis. P<0. 05 was considered significant. Data analysis showed that there was a significant improvement in neuromuscular performance in WBVT group compared to control group (P ≤ 0. 05). Based on the results of this study WBVT can reduce the possibility of falling risk among old women by improving neuromuscular performance.