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Showing 6 results for Whole Body Vibration
Mohammad Reza Naghii, Ghader Ghanizadeh, Peyman Darvishi, Yousef Ebrahimpour, Mahmood Mofid, Giti Torkaman, Ali Reza Asgari, Mehdi Hedayati,
Volume 5, Issue 4 (3-2012)
Abstract
Background and Aim:Whole body vibration (WBV) has been regarded as an exercise training method and as a non-pharmacological supportive treatment option appearing to be efficient for chronic disease conditions, such as bone disorders and cardio-respiratory fitness. Since, data on the safety and efficacy of vibration on plasma parameters are lacking, therefore, the purpose of this study was to assess the effects of WBV on the plasma parameters in adult male Wistar rat model.
Materials and Methods: Male Wistar rats weighing 140-180 g were divided into control and the vibration group. Vibration training consisted of vertical sinusoidal whole body vibration for 8 weeks, followed by blood collection.
Results: The vibrated rats weighed more than the control group (approximately 14 % more). Plasma CK, E2 and IL-6 levels were significantly higher in the vibration group compared with the controls. The mean of Vit. D level was 15% higher hsCRP level was 11% lower and IL-6 level was 32% higher in the vibration group. No difference was observed for other selected plasma parameters.
Conclusion: The potential effects of physiological responses of WBV on several physiological systems are without deteriorations in plasma parameters.
Zeinat Ashnagar, Azadeh Shadmehr, Mohammad Reza Hadian, Saeed Talebian, Shohreh Jalaei,
Volume 6, Issue 1 (10-2012)
Abstract
Background and Aim: Whole Body Vibration (WBV), as a new exercise modality, can improve neuromuscular performance but, there is no study to assess the effects of WBV on the reaction time as an indicator of muscular performance especially in upper extremity muscles. Therefore, the aim of the present study is to investigate the immediate effects of WBV on timing parameters of upper extremity muscles.
Materials and Methods: Forty healthy young women were randomly assigned in two groups of intervention (with WBV) and control (without WBV). In the intervention group, timing parameters (Reaction time (RT), Premotor time (PMT), Motor time (MT)) were measured by using EMG before and after the vibration (5 sets of 30seconds at 5 mm amplitude and 30 Hz frequency) session. The same protocol but without vibration was used for control group.
Results: Whole body vibration did not alter the RT significantly (P=0.253). Premotor time was increased significantly only in the triceps muscle (P=0.006). There was also a significant difference (P=0.003) in MT of the serattus anterior muscle between two groups.
Conclusion: It seems that WBV can induce different effects on upper extremity muscles. Whole body vibration has not any significant effects on the total RT
Amin Kordi Yousefi Nejad, Azadeh Shadmehr, Gholam Reza Olyaei,
Volume 7, Issue 1 (5-2013)
Abstract
Background and Aim: Diabetes has world wide prevalence and it is estimated that up to ten years later, more than 300 million people would suffer from it. The disease has serious secondary complications. Physical activity can decrease the complications by altering the blood profiles. Patients with diabetes are unwilling to do physical exercise. Whole Body Vibration (WBV) might be a proper substitution for exercise. The effects of WBV on patients with diabetes have not been studied enough, so the aim of this study was to evaluate the effects of WBV on the blood profiles in patients with diabetes type 2.
Materials and Methods: Twenty patients with diabetes were assigned using matched assignment either into control (n=10) or intervention (n=10) group. Intervention group received the WBV with frequency of 30 Hz and amplitude of 2.5 mm for six weeks twice a week. The control group did not receive any intervention during this period. Blood profiles were measured in both groups at the baseline and the end of the study.
Results: FBS and HbA1C decreased in intervention group in comparison with the control group but the differences were not statistically significant (P=0.44). There were not significant statistical differences in Cholesterol, HDL, LDL and TG before and after the treatment between the two groups.
Conclusion: The application of WBV with the above parameters might reduce FBS and HbA1C in patients with diabetes type 2. Increase in the amount of Glucose Transporter protein 4 (GLUT-4) is one of the contributing factors that these changes can be ascribed to.
H Sadeghi , S.kh Mousavi , H Ghasempur , H Nabavinik ,
Volume 7, Issue 1 (5-2013)
Abstract
Background and Aim: Diabetes has world wide prevalence and it is estimated that up to ten years later, more than 300 million people would suffer from it. The disease has serious secondary complications. Physical activity can decrease the complications by altering the blood profiles. Patients with diabetes are unwilling to do physical exercise. Whole Body Vibration (WBV) might be a proper substitution for exercise. The effects of WBV on patients with diabetes have not been studied enough, so the aim of this study was to evaluate the effects of WBV on the blood profiles in patients with diabetes type 2.
Materials and Methods: Twenty patients with diabetes were assigned using matched assignment either into control (n=10) or intervention (n=10) group. Intervention group received the WBV with frequency of 30 Hz and amplitude of 2.5 mm for six weeks twice a week. The control group did not receive any intervention during this period. Blood profiles were measured in both groups at the baseline and the end of the study.
Results: FBS and HbA1C decreased in intervention group in comparison with the control group but the differences were not statistically significant (P=0.44). There were not significant statistical differences in Cholesterol, HDL, LDL and TG before and after the treatment between the two groups. Conclusion: The application of WBV with the above parameters might reduce FBS and HbA1C in patients with diabetes type 2. Increase in the amount of Glucose Transporter protein 4 (GLUT-4) is one of the contributing factors that these changes can be ascribed to.
Morteza Ahmadi, Giti Torkaman, Sedigheh Kahrizi , Mojdeh Ghabaee,
Volume 8, Issue 4 (10-2014)
Abstract
Background and Aim: Despite the widespread use of whole body vibration (WBV),especiallyin recent years, its neurophysiological mechanism is still unclear and the results about the facilitatory or inhibitory effects of WBV widely vary in different studies. The aim of this study was to compare between immediate (one session) and short term (12 sessions) effects of WBV on the spinal motor neurons excitability in healthy young men. Materials and Methods: Ten voluntary non-athlete healthy young-men (mean age:26.1±2.23) were participated in this study.In the sham sessions subjects stood on the turned off vibration plate while were maintaining the semi-squat position and then after 2 weeks wash-out, vibration training sessions were done on the same position with frequency of 30 HZ and peak to peak amplitude of 3 mm training sessions (sham & vibration) consisted of 12 sessions (3 sessions per week) and 4 set in each of them, weekly one set added to the training protocol. H reflex recruitment curve of soleus muscle was recorded before and after first and also 12th sessions in both sham and vibration training protocol. Ascending slope of recruitment curve, threshold and peak amplitudes and related intensities, amplitude of Mh and Hmax/Mmax ratio were determined. Results: Immediate effects of vibration training 12th session caused a significant decrease of threshold amplitude and an increase of peak intensity (p=0.05 and p=0.05 respectively). Short term WBV training significantly decreased the threshold intensity of soleus recruitment curve (p=0.01). Conclusion: The results suggest the inhibitory effect of acute WBV training on the spinal motor neurons excitability. It seems that short term WBV training may be effective to facilitate the motor neurons excitability or increase the muscle spindle sensitivity. Key Words: Whole body vibration, H reflex recruitment curve, Soleus muscle, Short term training
Ailin Talimkhani, Afsoon Nodehi Moghadam , Leila Ghamkhar, Sharzad Mohammadi Rad, Somayeh Amiri Arimi, Bahareh Zeynalzadeh Ghoochani ,
Volume 9, Issue 7 (3-2016)
Abstract
Background and Aim: Whole body vibration (WBV) is a new therapeutic modality which improves muscle function, proprioception and postural control by creating an oscillatory mechanical stimulation. The aim of this research was to investigate the immediate effect of WBV on postural control in young adults.
Materials and Methods: In this quasi-experimental study, 22 healthy subjects were participated as a single group. Non-probability simple sampling method was used. Subjects were treated with 4 minutes WBV bout. The subjects repeated four times a 60-s light exercise program according to instructions which was shown by the therapist. During the vibration intervention, the vibration frequency increased in 1 minute intervals from 15 Hz for the first minute to 30 Hz for the last minute. Postural control indexes were recorded using the Biodex Balance system in situations of two leg standing with open and close eyes that included overall stability index (OSI), anterior-posterior stability index (APSI), medial-lateral stability index (MLSI) . In order to analyze the data, paired t-test was used.
Results: The results indicated that in the case of standing on two legs with eyes open, OSI and MLSI were statistically significant (P = 0.02; P = 0.01, respectively) and with eyes closed, OSI, APSI and MLSI were statistically significant (P = 0.000; P = 0.001; P = 0. 001, respectively).
Conclusion: Four minutes WBV bout can induce improvement of postural control and balance in young adults.
Keywords: Whole body vibration, Balance, Young adults, Stability
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