eISSN: 1643-3750


Published: 2016-10-27

Determining the Posture and Vibration Frequency that Maximize Pelvic Floor Muscle Activity During Whole-Body Vibration

Juhyun Lee, Kyeongjin Lee, Changho Song

(Department of Physical Therapy, College of Health Science, Sahmyook University, Seoul, South Korea)

Med Sci Monit 2016; 22:4030-4036

DOI: 10.12659/MSM.898011

BACKGROUND: The aim of this study was to investigate the electromyogram (EMG) response of pelvic floor muscle (PFM) to whole-body vibration (WBV) while using different body posture and vibration frequencies.
MATERIAL AND METHODS: Thirteen healthy adults (7 men, 6 women) voluntarily participated in this cross-sectional study in which EMG data from PFM were collected in a total of 12 trials for each subject (4 body postures, 3 vibration frequencies). Pelvic floor EMG activity was recorded using an anal probe. The rating of perceived exertion (RPE) was assessed with a modified Borg scale.
RESULTS: We found that vibration frequency, body posture, and muscle stimulated had a significant effect on the EMG response. The PFM had high activation at 12 Hz and 26 Hz (p<0.05). PFM activation significantly increased with knee flexion (p<0.05). The RPE significantly increased with increased frequency (p<0.05).
CONCLUSIONS: The knee flexion angle of 40° at 12 Hz frequency can be readily promoted in improving muscle activation during WBV, and exercise would be performed effectively. Based on the results of the present investigation, sports trainers and physiotherapists may be able to optimize PFM training programs involving WBV.

Keywords: Electromyography, Pelvic Floor, Posture, Vibration

Published: 2016-10-27

Therapeutic Potential of Transcranial Focused Ultrasound for Rett Syndrome

Shih-Jen Tsai

Med Sci Monit 2016; 22:4026-4029

DOI: 10.12659/MSM.898041

Published: 2016-10-27

Induction of Patient-Derived Xenograft Formation and Clinical Significance of Programmed Cell Death Ligan...

Yuanyuan Ma, Panpan Zhang, Guo An, Xiaolong Zhang, Liyi Zhang, Jiahui Si, Jianzhi Zhang, Yue Yang

Med Sci Monit 2016; 22:4017-4025

DOI: 10.12659/MSM.900661