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Comparison of the effect of eight weeks of combined vibration-rope skipping training with two different intensities on the indicators elderly men muscle electrography: a randomized, single-blind clinical trial | ||
| پژوهشنامه فیزیولوژی ورزشی کاربردی | ||
| Article 5, Volume 17, Issue 33, June 2021, Pages 89-107 PDF (1.07 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.22080/jaep.2021.20692.2010 | ||
| Authors | ||
| Mahdi Pouyafar1; Roya Askari* 1; Seyed Alireza Hosseinai Kakhk1; Mohsen Damavand1; Ali Maleki2 | ||
| 1Department of Exercise Physiology, Faculty of Sport Sciences, Hakim Sabzevari University, Sabzevar, Iran | ||
| 2Department of Biomedical Engineering, Semnan University, Semnan, Iran | ||
| Receive Date: 09 January 2021, Revise Date: 08 January 2021, Accept Date: 11 February 2021 | ||
| Abstract | ||
| Background and Purpose: Whole body vibration (WBV) exercises appear to be an effective alternative to improving physical function in the elderly. The aim of this study was to compare the effect of eight weeks of whole body vibration exercises and rope skipping training with two different intensities on electromyography indices of elderly men. Methodology: 36 elderly men (mean age 65.8 ± 4.2 years; height 169.3 ±3.9 cm; mass 77.1 ± 4.6 kg; body mass index 26.9±0.7 kg.m2) were selected by purposive and available sampling method and randomly divided into three groups of high intensity (N=12), low intensity (N =12), and control (N =10). Vibration exercises were performed in the high intensity group with a frequency of 40 Hz and in the low intensity group with a frequency of 25 Hz, with a range of 3 mm in both groups. Exposure was intermittent (1 min WBV: 35-40 min rest) for 30 min with four positions (full swim, reverse forearm flexion, launch, foot squat) on the vibration device, three times per week for 8 weeks with rope training. In rope training, intensity was applied according to the Borg scale at levels 14 and 13 with 30-35 jumps per minute (one minute set in the first week to six one-minute sets in the seventh and eighth weeks progressively) for both groups. Electromyographic indices of biceps brachii, triceps brachii, rectus femoris and biceps femoris muscles including activation of the ratio of agonist and antagonist muscles, muscle amplitude, and average muscle power frequency using Datalog-MWX8 Bluetooth electromyogram recorder Along with four active recording electrodes, the SX230 were calculated in the pre-test and at the end of eight weeks. Statistical analysis of variance with repeated measures was used to analyze the data and SPSS software version 20. Significance level (p≥0.05) was considered. Results: The electromyographic indices (activation of the ratio of agonist and antagonist muscles, muscle amplitude, and average muscle power frequency) in the muscles of the upper and lower limbs in the high intensity and low intensity training groups showed a significant improvement compared to the control group (p≤0.05). There was no significant difference between the two training groups in any of the variables . Conclusion: The both the intensity of the combined vibration-rope programs have improved the function of electrical muscle activity in the upper and lower limbs of older men. . | ||
| Keywords | ||
| Combined Exercise; Intensity; Electromyography; Aging | ||
| References | ||
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