Effect of Bone Tissue on Vibration-Induced Electrical Activity of Muscles

Karacan, İlhan; Sarıyıldız, Mustafa Akif; Bahadır, Cengiz; Özen, Aynur

doi:10.5336/medsci.2010-18178

Cited by 4 publications

(11 citation statements)

References 44 publications

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“…BMR activates the muscles that could eliminate such asymmetrical loading. As a result, optimal distribution of the mechanical load through the bone is provided (11,15,16).…”

Section: Possible Mechanisms Underlying Vibration-induced Reflex Muscmentioning

confidence: 99%

“…There, they activate motoneurons that cause the muscle to contract (2,3,6,7). However, it has been reported that the sensitivity of the muscle spindle decreases or does not increase, and that presynaptic inhibition occurs in Group Ia afferent fibres with vibration (6,(8)(9)(10)(11)(12)(13)(14).…”

mentioning

confidence: 99%

“…Osteocytes embedded in the bone matrix are interconnected by numerous dendritic processes, forming a wide, mechanosensitive cellular network. Osteocytes exposed to cyclic mechanical loading send mechanical input signals to the central nervous system, influencing the neuronal regulation of muscle activity (11,15,16). This study was designed to analyse the role of BMR in the muscular response during WBV.…”

mentioning

confidence: 99%

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A Randomized Trial on the Effect of Bone Tissue on Vibration-induced Muscle Strength Gain and Vibration-induced Reflex Muscle Activity

Çidem¹,

Karacan²,

Dıraçoğlu³

et al. 2014

Balkan Med J

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Whole-body vibration (WBV), as a method of exercise training, is becoming increasingly popular in physical therapy, rehabilitation, and professional sports, and is increasingly used in beauty and wellness applications due to its beneficial effects on the neuromusculoskeletal system. These benefits include improved strength, power, flexibility, jump height, and balance (1-4).However, little is known about the physiological mechanisms underlying the effects of WBV on muscular performance, although the presence of reflex muscle activity during WBV has been shown (4, 5). Tonic vibration reflex (TVR) is the most commonly cited mechanism to explain the effects of WBV on muscular performance, although there is no conclusive evidence that tonic vibration reflex (TVR) occurs (4-6). Studies have reported that direct vibration applied to a muscle or tendon stimulates muscle spindles, thereby causing a TVR to occur. As highlighted by these studies, muscle spindle Background: Whole-body vibration (WBV) induces reflex muscle activity and leads to increased muscle strength. However, little is known about the physiological mechanisms underlying the effects of whole-body vibration on muscular performance. Tonic vibration reflex is the most commonly cited mechanism to explain the effects of whole-body vibration on muscular performance, although there is no conclusive evidence that tonic vibration reflex occurs. The bone myoregulation reflex is another neurological mechanism used to explain the effects of vibration on muscular performance. Bone myoregulation reflex is defined as a reflex mechanism in which osteocytes exposed to cyclic mechanical loading induce muscle activity. Aims: The aim of this study was to assess whether bone tissue affected vibration-induced reflex muscle activity and vibration-induced muscle strength gain. Study Design: A prospective, randomised, controlled, double-blind, parallel-group clinical trial. Methods: Thirty-four participants were randomised into two groups. High-magnitude whole-body vibration was applied in the exercise group, whereas low-magnitude whole-body vibration exercises were applied in the control group throughout 20 sessions. Hip bone mineral density, isokinetic muscle strength, and plasma sclerostin levels were measured. The surface electromyography data were processed to obtain the Root Mean Squares, which were normalised by maximal voluntarily contraction. Results: In the exercise group, muscle strength increased in the right and left knee flexors (23.9%, p=0.004 and 27.5%, p<0.0001, respectively). However, no significant change was observed in the knee extensor muscle strength. There was no significant change in the knee muscle strength in the control group. The vibration-induced corrected Root Mean Squares of the semitendinosus muscle was decreased by 2.8 times (p=0.005) in the exercise group, whereas there was no change in the control group. Sclerostin index was decreased by 15.2% (p=0.031) in the exercise group and increased by 20.8% (p=0.028) in the control group. A change in th...

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“…BMR activates the muscles that could eliminate such asymmetrical loading. As a result, optimal distribution of the mechanical load through the bone is provided (11,15,16).…”

Section: Possible Mechanisms Underlying Vibration-induced Reflex Muscmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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A Randomized Trial on the Effect of Bone Tissue on Vibration-induced Muscle Strength Gain and Vibration-induced Reflex Muscle Activity

Çidem¹,

Karacan²,

Dıraçoğlu³

et al. 2014

Balkan Med J

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“…14 The bone has been reported to have a potential effect on the ipsilateral muscle activity. 12,13 However, whether the bone has any effect on the contralateral homologous muscle activity is not known. This study investigated whether the bone mineral density (BMD) or bone mineral content (BMC) of the distal radius had any effect on the resting muscle activity of the contralateral wrist flexor muscles during unilateral forearm vibration in healthy adults.…”

mentioning

confidence: 99%

“…Through the bone myoregulation reflex, bone is sensitive to mechanical stimuli and can send mechanical input signals to central nervous system, resulting in neuronal stimulation of muscle activity. 12,13 The vibration can increase the strength of the contralateral and ipsilateral muscles.…”

mentioning

confidence: 99%

The Effects of Radius Bone Density on the Resting Myoelectrical Activity of Contralateral Wrist Flexors in Subjects Exposed to Unilateral Forearm Vibration

Karacan¹,

Çidem²,

Özen³

et al. 2012

Turkiye Klinikleri J Med Sci

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A AB BS ST TR RA AC CT T O Ob bj je ec ct ti iv ve e: : To investigate whether bone mineral density or bone mineral content of the ultradistal radius has any effect on the resting muscle activity of contralateral wrist flexor muscles during unilateral forearm vibration. M Ma at te er ri ia al l a an nd d M Me et th ho od ds s: : Ninety healthy adult volunteers (33 women, 57 men) were included in this study. The mean age of participants was 34.2 (20-52) years. The right forearm was exposed to vibration for 1 minute. The frequency of vibration was 46 Hz. The resting myoelectrical activities of the right and left wrist flexor muscles were simultaneously measured by surface electromyography before, during and after vibration. The right ultradistal radius bone mineral density and bone mineral content were measured by dual-energy X-ray absorbtiometry. R Re es su ul lt ts s: : The resting myoelectrical activity of the left wrist flexor muscles significantly increased during vibration (from 2.0±0.8 microvolts to 4.5±2.2 microvolts, p=0.0001). It decreased to 1.8±0.9 microvolts after vibration (p=0.0001). Multiple linear regression analysis revealed that the right ultradistal radius bone mineral density was an independent predictor of the resting myoelectrical activity of the left wrist flexor muscles measured during vibration. However, age, gender, body mass index, the right ultradistal radius bone mineral content and, the right and left wrist flexor muscles' resting myoelectrical activity measured before vibration were not predictors (R2=0.772, F=301.8, p = 0.0001). C Co on nc cl lu us si io on n: : It is suggested that the ultradistal radius bone may affect the resting myoelectrical activities in the contralateral wrist flexor muscles, based on its bone mineral density during unilateral forearm vibration. K Ke ey y W Wo or rd ds s: : Vibration; muscle, skeletal; bone density Ö ÖZ ZE ET T A Am ma aç ç: : Unilateral ön kol vibrasyonu sırasında ultradistal radius kemik mineral yoğunluğu veya kemik mineral içeriğinin, kontralateral el bileği fleksör istirahat kas elektriksel aktivitesi üz-erine etkisi olup olmadığını araştırmak idi. G Ge er re eç ç v ve e Y Yö ön nt te em ml le er r: : Bu çalışmaya 90 sağlıklı genç erişkin (33 kadın, 57 erkek) alındı. Katılımcıların yaş ortalaması 34.2 (20-52) yıl idi. Sağ ön kola 1 dakika vibrasyon uygulandı. Vibrasyon frekansı 46 Hz idi. Vibrasyon öncesinde, sırasında ve sonrasında sağ ve sol el bilek fleksör istirahat kas elektriksel aktivitesi yüzeyel elektromiyografi ile eş zamanlı olarak ölçüldü. Sağ ultradistal radius kemik mineral yoğunluğu ve kemik mineral içeriği dual-enerji X-ışını absorpsiyometri ile ölçüldü. B Bu ul lg gu ul la ar r: : Vibrasyon sırasında sol el bilek fleksör istirahat kas elektriksel aktivitesi (2,0±0,8 mikro volttan 4,5±2,2 mikro volta) anlamlı olarak arttı (p=0,0001). Çoklu doğrusal regresyon analizi sağ ultradistal radius kemik mineral yoğunluğunun, vibrasyon sırasında ölçülen sol el bileği fleksör istirahat kas elektriksel aktivitesi için bağımsız bir pr...

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Predictors of chronic pain and disability in patients treated conservatively after distal radius fracture: a prospective cohort study

Luk

Chan

Cho

et al. 2023

International Orthopaedics (SICOT)

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Effect of Bone Tissue on Vibration-Induced Electrical Activity of Muscles

Cited by 4 publications

References 44 publications

A Randomized Trial on the Effect of Bone Tissue on Vibration-induced Muscle Strength Gain and Vibration-induced Reflex Muscle Activity

A Randomized Trial on the Effect of Bone Tissue on Vibration-induced Muscle Strength Gain and Vibration-induced Reflex Muscle Activity

The Effects of Radius Bone Density on the Resting Myoelectrical Activity of Contralateral Wrist Flexors in Subjects Exposed to Unilateral Forearm Vibration

Predictors of chronic pain and disability in patients treated conservatively after distal radius fracture: a prospective cohort study

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