Discharge pattern of single motor units in the tonic vibration reflex of human triceps surae.

Burke, David; Schiller, Hans H.

doi:10.1136/jnnp.39.8.729

Cited by 126 publications

(121 citation statements)

References 21 publications

Supporting

Mentioning

103

Contrasting

Unclassified

Order By: Relevance

“…WBV is known to stimulate muscle activity (Bosco et al, 1999;Burke and Schiller, 1976), and the current findings of the Balance beam with improved motor performance after WBV are therefore in full support of these observations. The improved attention in the object recognition task corroborates the found improvements in attention in humans (Fuermaier et al, 2014 a,b ; Regterschot et al, 2014, den Heijer et al, 2015.…”

Section: Discussionsupporting

confidence: 75%

“…One consequence of this type of stimulation is that reflex muscle contractions are induced. The activation of sensory receptors in the muscle (muscle spindles) initiates these reflexes leading to the activation of muscle motor units (Bosco et al, 1999;Burke and Schiller, 1976). Increased muscle activity, blood flow and muscle and skin temperature have been shown to be the consequence of acute WBV protocols (Hazell and Lemon, 2012).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Whole Body Vibration Improves Attention and Motor Performance in Mice Depending on the Duration of the Whole-Body Vibration Session

Keijser

Heuvelen

Nyakas³

et al. 2017

Afr J Tradit Complement Altern Med

View full text Add to dashboard Cite

Background: Whole body vibration (WBV) is a form of physical stimulation via mechanical vibrations transmitted to a subject. It is assumed that WBV induces sensory stimulation in cortical brain regions through the activation of skin and muscle receptors responding to the vibration. The effects of WBV on muscle strength are well described. However, little is known about the impact of WBV on the brain. Recently, it was shown in humans that WBV improves attention in an acute WBV protocol. Preclinical research is needed to unravel the underlying brain mechanism. As a first step, we examined whether chronic WBV improves attention in mice. Material and Methods: A custom made vibrating platform for mice with low intensity vibrations was used. Male CD1 mice (3 months of age) received five weeks WBV (30 Hz; 1.9 G), five days a week with sessions of five (n=12) or 30 (n=10) minutes. Control mice (pseudo-WBV; n=12 and 10 for the five and 30 minute sessions, respectively) were treated in a similar way, but did not receive the actual vibration. Object recognition tasks were used as an attention test (novel and spatial object recognition -the primary outcome measure). A Balance beam was used for motor performance, serving as a secondary outcome measure. Results: WBV sessions of five (but not WBV sessions of 30 minutes) improved balance beam performance (mice gained 28% in time needed to cross the beam) and novel object recognition (mice paid significantly more attention to the novel object) as compared to pseudo WBV, but no change was found for spatial object performance (mice did not notice the relocation). Although 30 minutes WBV sessions were not beneficial, it did not impair either attention or motor performance. Conclusion: These results show that brief sessions of WBV improve, next to motor performance, attention for object recognition, but not spatial cues of the objects. The selective improvement of attention in mice opens the avenue to unravel the underlying brain mechanisms.

show abstract

Section: Discussionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Whole Body Vibration Improves Attention and Motor Performance in Mice Depending on the Duration of the Whole-Body Vibration Session

Keijser

Heuvelen

Nyakas³

et al. 2017

Afr J Tradit Complement Altern Med

View full text Add to dashboard Cite

show abstract

“…Mechanical stimuli transmitted to the body stimulate the primary endings of the muscle spindles, resulting in neuronal activation and muscle contractions comparable with the tonic vibration reflex. (18,19) Vibration-induced increase in muscle activity results in significant improvements in muscle strength and muscle mass following 6 and 12 months of WBV training, as shown in studies in community-dwelling individuals with a mean age of 64 and 67 years, respectively. (15,16) Additionally, the high-frequency loading of the skeleton leads to enhancements in BMD of the hip.…”

mentioning

confidence: 98%

The effects of whole-body vibration training and vitamin D supplementation on muscle strength, muscle mass, and bone density in institutionalized elderly women: A 6-month randomized, controlled trial

Verschueren

Bogaerts

Delecluse

et al. 2010

Journal of Bone and Mineral Research

118

104

View full text Add to dashboard Cite

Sarcopenia and osteoporosis represent a growing public health problem. We studied the potential benefit of whole-body vibration (WBV) training given a conventional or a high dose of daily vitamin D supplementation in improving strength, muscle mass, and bone density in postmenopausal women. In a 2 Â 2 factorial-design trial, 113 institutionalized elderly females aged over 70 years (mean age 79.6 years) were randomly assigned either to a WBV or a no-training group, receiving either a conventional dose (880 IU/day) or a high dose (1600 IU/day) of vitamin D 3 . The primary aim was to determine the effects of 6 months of WBV and/or vitamin D supplementation on isometric and dynamic strength, leg muscle mass, and hip bone mineral density (BMD). Additionally, the increase in 25-hydroxyvitamin D [25(OH)D] levels between conventional and high-dose supplementation was compared. After 6 months of treatment, dynamic muscle strength, hip BMD, and vitamin D serum levels improved significantly in all groups, whereas isometric strength and muscle mass did not change. When compared with no training, the WBV program did not result in additional improvements. When compared with 880 IU, a high dose of 1600 IU of vitamin D did result in higher serum vitamin D levels but did not result in additional improvements. In institutionalized women older than 70 years, the WBV training protocol tested is not more efficient in enhancing muscle mass, strength, and hip BMD compared with vitamin D supplementation. A higher dose of 1600 IU of vitamin D does not provide additional musculoskeletal benefit in this population compared with conventional doses. ß

show abstract

“…The activation of these sensory receptors results in reflexive activation of motor units similar to the tonic vibration reflex. (9) We hypothesized that, in addition to an increase in muscle strength caused by vibration-induced muscle activity, high-frequency loading of the skeleton might improve the mechanical competence of the skeleton in postmenopausal women. BMD of the total hip was selected as primary endpoint of this trial because the measurement is not confounded by degenerative changes and is highly predictive of future hip fracture risk.…”

Section: Introductionmentioning

confidence: 99%

Effect of 6-Month Whole Body Vibration Training on Hip Density, Muscle Strength, and Postural Control in Postmenopausal Women: A Randomized Controlled Pilot Study

Verschueren

Roelants

Delecluse

et al. 2004

Journal of Bone and Mineral Research

647

587

View full text Add to dashboard Cite

High-frequency mechanical strain seems to stimulate bone strength in animals. In this randomized controlled trial, hip BMD was measured in postmenopausal women after a 24-week whole body vibration (WBV) training program. Vibration training significantly increased BMD of the hip. These findings suggest that WBV training might be useful in the prevention of osteoporosis.Introduction: High-frequency mechanical strain has been shown to stimulate bone strength in different animal models. However, the effects of vibration exercise on the human skeleton have rarely been studied. Particularly in postmenopausal women-who are most at risk of developing osteoporosis-randomized controlled data on the safety and efficacy of vibration loading are lacking. The aim of this randomized controlled trial was to assess the musculoskeletal effects of high-frequency loading by means of whole body vibration (WBV) in postmenopausal women. Materials and Methods: Seventy volunteers (age, 58 -74 years) were randomly assigned to a whole body vibration training group (WBV, n ϭ 25), a resistance training group (RES, n ϭ 22), or a control group (CON, n ϭ 23). The WBV group and the RES group trained three times weekly for 24 weeks. The WBV group performed static and dynamic knee-extensor exercises on a vibration platform (35-40 Hz, 2.28 -5.09g), which mechanically loaded the bone and evoked reflexive muscle contractions. The RES group trained knee extensors by dynamic leg press and leg extension exercises, increasing from low (20 RM) to high (8 RM) resistance. The CON group did not participate in any training. Hip bone density was measured using DXA at baseline and after the 6-month intervention. Isometric and dynamic strength were measured by means of a motor-driven dynamometer. Data were analyzed by means of repeated measures ANOVA. Results: No vibration-related side effects were observed. Vibration training improved isometric and dynamic muscle strength (ϩ15% and ϩ 16%, respectively; p Ͻ 0.01) and also significantly increased BMD of the hip (ϩ0.93%, p Ͻ 0.05). No changes in hip BMD were observed in women participating in resistance training or age-matched controls (Ϫ0.60% and Ϫ0.62%, respectively; not significant). Serum markers of bone turnover did not change in any of the groups. Conclusion: These findings suggest that WBV training may be a feasible and effective way to modify wellrecognized risk factors for falls and fractures in older women and support the need for further human studies.

show abstract

Discharge pattern of single motor units in the tonic vibration reflex of human triceps surae.

Cited by 126 publications

References 21 publications

Whole Body Vibration Improves Attention and Motor Performance in Mice Depending on the Duration of the Whole-Body Vibration Session

Whole Body Vibration Improves Attention and Motor Performance in Mice Depending on the Duration of the Whole-Body Vibration Session

The effects of whole-body vibration training and vitamin D supplementation on muscle strength, muscle mass, and bone density in institutionalized elderly women: A 6-month randomized, controlled trial

Effect of 6-Month Whole Body Vibration Training on Hip Density, Muscle Strength, and Postural Control in Postmenopausal Women: A Randomized Controlled Pilot Study

Contact Info

Product

Resources

About