The effects of whole body vibration on EMG activity of the upper extremity muscles in static modified push up position

2016 ◽  
Vol 29 (3) ◽  
pp. 557-563 ◽  
Author(s):  
Zinat Ashnagar ◽  
Azadeh Shadmehr ◽  
Mohammadreza Hadian ◽  
Saeed Talebian ◽  
Shohreh Jalaei
Keyword(s):  
Upper Extremity ◽  
Whole Body Vibration ◽  
Whole Body ◽  
Emg Activity ◽  
Body Vibration ◽  
Push Up

scholarly journals Can Whole-Body Vibration Exercises in Different Positions Change Muscular Activity of Upper Limbs? A Randomized Trial

Dose-Response ◽  
2018 ◽  
Vol 16 (4) ◽  
pp. 155932581880436 ◽  
Author(s):  
Danielle S Morel ◽  
Pedro J Marín ◽  
Eloá Moreira-Marconi ◽  
Carla F Dionello ◽  
Mario Bernardo-Filho
Keyword(s):  
Muscle Activation ◽  
Handgrip Strength ◽  
Whole Body Vibration ◽  
Muscular Activity ◽  
Whole Body ◽  
Acute Effects ◽  
Body Vibration ◽  
Test Sets ◽  
Flexor Digitorum ◽  
Push Up

The aim of this study was to investigate the acute effects of whole-body vibration exercises (WBVE) in different positions on muscular activity of flexor digitorum superficialis (FD), wrist extensor (ED), and handgrip strength (HG) of healthy men. Fifteen participants have performed 5 test sets each one consisting of HG strength measurement and 1-minute WBVE intervention (frequency: 50 Hz, amplitude: 1.53 mm, synchronous tri-planar oscillating/vibratory platform), that could be control (no exposition to vibration), squat (30 seconds of rest and 30 seconds of WBVE in squat position), or push-up (30 seconds of rest, and 30 seconds of WBVE in push-up position). After testing, participants had 2 minutes of rest and then were encouraged to keep themselves on a pull-up bar for 30 seconds. During all procedures, muscular activity of FD and ED was measured by surface electromyography (EMG). Statistical analysis has revealed that the EMG measured in the FD during the static pull-up bar exercise after SQUAT condition was significantly higher ( P = .004) than the CONTROL and PUSH-UP conditions. Whole-body vibration exercises in squat position increase acutely muscle activation of the FD during isometric exercises of longer duration, while muscle activation of ED and HG strength are not affected by WBVE.

Effects of seated posture on erector spinae EMG activity during whole body vibration

Ergonomics ◽  
1993 ◽  
Vol 36 (6) ◽  
pp. 667-675 ◽  
Author(s):  
CHRIS L. ZIMMERMANN ◽  
THOMAS M. COOK ◽  
VIJAY K. GOEL
Keyword(s):  
Whole Body Vibration ◽  
Erector Spinae ◽  
Whole Body ◽  
Emg Activity ◽  
Body Vibration ◽  
Seated Posture

scholarly journals The Effects of Different Vibration Frequencies, Amplitudes and Contraction Levels on Lower Limb Muscles during Graded Isometric Contractions Superimposed on Whole Body Vibration Stimulation

2018 ◽  
Author(s):  
Amit N. Pujari ◽  
Richard D. Neilson ◽  
Marco Cardinale
Keyword(s):  
Muscle Contraction ◽  
Isometric Contraction ◽  
Whole Body Vibration ◽  
Lower Limbs ◽  
Whole Body ◽  
Emg Activity ◽  
Isometric Contractions ◽  
Body Vibration ◽  
Neuromuscular Activity ◽  
Co Activation

AbstractBackgroundIndirect vibration stimulation i.e. whole body vibration or upper limb vibration, has been suggested increasingly as an effective exercise intervention for sports and rehabilitation applications. However, there is a lack of evidence regarding the effects of whole body vibration (WBV) stimulation superimposed to graded isometric contractions superimposed on. For this scope, we investigated the effects of WBV superimposed to graded isometric contractions in the lower limbs on muscle activation. We also assessed the agonist-antagonist co-activation during this type of exercise.Twelve healthy volunteers were exposed to WBV superimposed to graded isometric contractions, at 20, 40, 60, 80 and 100% of the maximum voluntary contractions (V) or just isometric contractions performed on a custom designed horizontal leg press Control (C). Tested stimulation consisted of 30Hzand 50Hz frequencies and 0.5mm and 1.5mm amplitudes. Surface electromyographic activity of Vastus Lateralis (VL), Vastus Medialis (VM) and Biceps Femoris (BF) were measured during V and C conditions. Co-contraction activity of agonist-antagonist muscles was also quantified. The trials were performed in random order.ResultsBoth the prime mover, (VL) and the antagonist, (BF) displayed significantly higher (P < 0.05) EMG activity with the V than the C condition. For both the VL and BF, the increase in mean EMGrms values depended on the frequency, amplitude and muscle contraction level with 50Hz-0.5mm stimulation inducing the largest neuromuscular activity. 50Hz-0.5mm V condition also led to co-activation ratios significantly (P< 0.05) higher at 40, 80 and 100% of MVC than the C condition.ConclusionsOur results show that the isometric contraction superimposed on vibration stimulation leads to higher neuromuscular activity compared to isometric contraction alone in the lower limbs. Compared to the control condition, the vibratory stimulation leads to higher agonist-antagonist co-activation of the muscles around the knee joint in all vibration conditions and effort levels. The combination of vibration magnitude (frequency and amplitude) and the level of muscle contraction affect neuromuscular activity rather than vibration frequency alone. Results of this study suggest that more parameters need to be taken into consideration when designing vibration exercise programs for sports and rehabilitation purposes.

Effects Of Acute Whole-Body Vibration On Upper Extremity Isometric Strength In Females.

2010 ◽  
Vol 42 ◽  
pp. 63
Author(s):  
Ryan Z. Amick ◽  
Bryce M. Winklepleck ◽  
Jeremy A. Patterson ◽  
Michael J. Jorgensen
Keyword(s):  
Upper Extremity ◽  
Whole Body Vibration ◽  
Isometric Strength ◽  
Whole Body ◽  
Body Vibration

scholarly journals EMG activity during whole body vibration: motion artifacts or stretch reflexes?

2010 ◽  
Vol 110 (1) ◽  
pp. 143-151 ◽  
Author(s):  
Ramona Ritzmann ◽  
Andreas Kramer ◽  
Markus Gruber ◽  
Albert Gollhofer ◽  
Wolfgang Taube
Keyword(s):  
Whole Body Vibration ◽  
Motion Artifacts ◽  
Whole Body ◽  
Emg Activity ◽  
Stretch Reflexes ◽  
Body Vibration

Whole body vibration in the static modified push-up position in untrained healthy women stimulates neuromuscular system potentiating increased handgrip myogenic response

2020 ◽  
Vol 24 (4) ◽  
pp. 233-238
Author(s):  
Ana Lúcia Cristino de Souza ◽  
Vanessa Amaral Mendonça ◽  
Ana Carolina Coelho de Oliveira ◽  
Sueli Ferreira da Fonseca ◽  
Luciana Martins Mello Santos ◽  
...  
Keyword(s):  
Whole Body Vibration ◽  
Whole Body ◽  
Neuromuscular System ◽  
Myogenic Response ◽  
Body Vibration ◽  
Healthy Women ◽  
Push Up

scholarly journals Effects of Vibration Intensity, Exercise, and Motor Impairment on Leg Muscle Activity Induced by Whole-Body Vibration in People With Stroke

2015 ◽  
Vol 95 (12) ◽  
pp. 1617-1627 ◽  
Author(s):  
Lin-Rong Liao ◽  
Gabriel Y.F. Ng ◽  
Alice Y.M. Jones ◽  
Raymond C.K. Chung ◽  
Marco Y.C. Pang
Keyword(s):  
Muscle Activity ◽  
High Intensity ◽  
Whole Body Vibration ◽  
Motor Impairment ◽  
Chronic Stroke ◽  
Whole Body ◽  
Emg Activity ◽  
Body Vibration ◽  
Low Intensity ◽  
Leg Muscle

Background Whole-body vibration (WBV) has increasingly been used as an adjunct treatment in neurological rehabilitation. However, how muscle activation level changes during exposure to different WBV protocols in individuals after stroke remains understudied. Objective The purpose of this study was to examine the influence of WBV intensity on the magnitude of biceps femoris (BF) and tibialis anterior (TA) muscle activity and its interaction with exercise and with severity of motor impairment and spasticity among individuals with chronic stroke. Methods Each of the 36 individuals with chronic stroke (mean age=57.3 years, SD=10.7) performed 8 different static exercises under 3 WBV conditions: (1) no WBV, (2) low-intensity WBV (frequency=20 Hz, amplitude=0.60 mm, peak acceleration=0.96g), and (3) high-intensity WBV (30 Hz, 0.44 mm, 1.61g). The levels of bilateral TA and BF muscle activity were recorded using surface electromyography (EMG). Results The main effect of intensity was significant. Exposure to the low-intensity and high-intensity protocols led to a significantly greater increase in normalized BF and TA muscle electromyographic magnitude in both legs compared with no WBV. The intensity × exercise interaction also was significant, suggesting that the WBV-induced increase in EMG activity was exercise dependent. The EMG responses to WBV were similar between the paretic and nonparetic legs and were not associated with level of lower extremity motor impairment and spasticity. Limitations Leg muscle activity was measured during static exercises only. Conclusions Adding WBV during exercise significantly increased EMG activity in the TA and BF muscles. The EMG responses to WBV in the paretic and nonparetic legs were similar and were not related to degree of motor impairment and spasticity. The findings are useful for guiding the design of WBV training protocols for people with stroke.

The EMG activity–acceleration relationship to quantify the optimal vibration load when applying synchronous whole-body vibration

2015 ◽  
Vol 25 (6) ◽  
pp. 853-859 ◽  
Author(s):  
Riccardo Di Giminiani ◽  
Francesco Masedu ◽  
Johnny Padulo ◽  
Jozsef Tihanyi ◽  
Marco Valenti
Keyword(s):  
Whole Body Vibration ◽  
Whole Body ◽  
Emg Activity ◽  
Body Vibration ◽  
Vibration Load
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