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Effect of Vibration
Published in Verna Wright, Eric L. Radin, Mechanics of Human Joints, 2020
J. E. Smeathers, P. S. Helliwell
For some time there has been wide interest in the biological effects of whole-body vibration. This interest is reflected in the large body of literature, for die most part relating to occupational exposure. Some of this literature is anecdotal, methodologically unsound, or unavailable in recognized publications (e.g., two-thirds of the references given inan extensive review, Ref. 10), but a relationship between WBV, regional pain syndromes, and radiological evidence of osteoarthritis has been found. This section provides a critical appraisal of the literature relating to the pathophysiology and epidemiology of the biological effects of WBV; note, however, that many of the studies published in East European and Russian journals are not included. No criticism of these journals or the studies contained in them is implied by this exclusion; the omission is purely due to practical and linguistic difficulties.
Pulmonary rehabilitation: The development of a scientific discipline
Published in Claudio F. Donner, Nicolino Ambrosino, Roger S. Goldstein, Pulmonary Rehabilitation, 2020
Linda Nici, Roger S. Goldstein
Over the last 20 years there has been tremendous growth and inquiry in the field of PR. Programmes can be lengthened (50) or repeated (51) with good effect. Conventional exercise can be delivered through constant power endurance training or by interval training with similar results (52). Exercise can be augmented by reducing the work of breathing using positive pressure support (53), using hyperoxic gas mixtures (54), by replacing nitrogen with a mixture of helium and oxygen (55) (Figure 2.6) or by partitioning of muscle through one-legged exercise (56). For those with very severe disease, muscle function can be augmented through neuromuscular stimulation (57) and for others with severe exercise and balance impairment, whole body vibration may be beneficial (58). Conventional rehabilitation exercises may be augmented through music (59), singing (60), Tai Chi (61), yoga (62), dance (63) and active video games (64).
Exposure to Vibration at the Workplace
Published in Gaetano Licitra, Giovanni d'Amore, Mauro Magnoni, Physical Agents in the Environment and Workplace, 2018
The second type of vibration that Directive 2002/44/EC deals with is whole-body vibration. This type of vibration is usually transmitted from a vehicle to the lower back of a seated subject, or more occasionally from a platform to the feet of a standing subject. Vibration is then transmitted to the trunk, and, if intensity is strong enough, can propagate to the head and upper limbs (Kelsey et al. 1984, Lan et al. 2016).
Effects of whole-body vibration exercise in patients with chronic kidney disease: a systematic review
Published in Disability and Rehabilitation, 2023
Ana Carolina Coelho-Oliveira, Adriana Biral de Jesus da Silva, Suzana Sgarbi Braga, Penha Valéria Lago da Gama, Juliana Pessanha-Freitas, Jani Cleria Pereira Bezerra, Luiz Felipe Ferreira-Souza, Márcia Cristina Moura-Fernandes, Ana Cristina Rodrigues Lacerda, Vanessa Amaral Mendonça, José Alexandre Bachur, Redha Taiar, Danúbia da Cunha de Sá-Caputo, Mario Bernardo-Filho
Low-intensity vibration in Rajapakse et al. 2017 [27] was considered as a potential and feasibility program as a nonpharmacologic means to treat skeletal deficits and capable to promote muscle-bone interaction, including a significant improvement in the rigidity of the tibia cross section, due to the improvement of the trabecular but not cortical bone. Similarly, Petryk et al. [39], examined the effects of a low-intensity synchronous vibrating platform and identified in their study positive effects of vibration on skeletal muscle tissue and bone in the vicinity of the vibrating platform in patients with dystrophinopathies. On the other hand, Söderpalm et al. [40] used a lateral vibration platform and no changes in trabecular or cortical tibial density, or bone remodeling markers, were observed in patients with Duchenne muscular dystrophy. These findings suggest that whole-body vibration may have a therapeutic role to play in improving bone health, particularly for individuals who are unable to tolerate exercise.
The acute effects of different frequencies of whole-body vibration on arterial stiffness
Published in Clinical and Experimental Hypertension, 2020
Eonho Kim, Takanobu Okamoto, Jooho Song, Kihyuk Lee
The findings of the present study have potential clinical implications. In the current study, there was a decrease in arterial stiffness 30 min after WBV at 30 Hz compared with baseline, whereas WBV at <20 Hz did not decrease arterial stiffness. Furthermore, previous studies have also reported that WBV at a vibration frequency >25 Hz decreased arterial stiffness. Thus, since repeated acute reductions in arterial stiffness may lead to lower baseline levels of arterial stiffness, it is necessary to set the optimal vibration frequency (>25 Hz), which might be beneficial for cardiovascular health. The effects of whole body vibration might be depend on not only frequency of vibration but also the number of exercise. Low frequency whole body vibration might affect baPWV when the exercise number increase, as in previous report (ex. 10 sets of vibration at 20 Hz). Lowering the frequency and increasing the number of exercises can affect baPWV. Although this study was aimed at healthy individuals, WBV exercise can be performed not only for adults but also for the elderly. In such cases, it is important to find the optimal frequency to lower the baPWV while lowering the frequency of exercise.
Effect of vibration on the vestibular system in noisy and noise-free environments in heavy industry
Published in Acta Oto-Laryngologica, 2019
Vibratory and noise generating machines and equipment are widely used in heavy industry. The machines used in heavy industry can produce intense noise which can cause damage to the cochlea and can lead to hearing loss. Noise exposure higher than 90 dB for 8 h/day for long periods can cause hearing loss [1]. Many studies have reported that noise-induced hearing loss (NIHL) causes vestibular dysfunction [2,3]. The vibration produced by machines in heavy industry can create vibration in the hands and arms (HAV) or whole body vibration (WBV) . The most commonly reported effects of exposure to excessive HAV are vascular and the obvious signs are known as ‘vibration white finger’ [4]. WBV can also affect the gastrointestinal system, the female reproductive system, the peripheral veins, and the vestibulocochlear system [5]. In one study, WBV was measured simultaneously in three linear axes, consisting of the x-axis (longitudinal), the y-axis (transverse), and the z axis is from foot-to-head (vertical-axis) on the standing individual and buttocks-to-head on the seated individual [4]. Some vibration frequencies correspond to different resonance frequencies in different parts of the body. Especially The z direction is felt differently in the head and neck region [6]. The average vibration magnitude at which humans are exposed is expressed as the measurement value (m/s2) [7]. Low frequency, especially below 2 Hz vibration, may cause irritation to the vestibular system, such as occurs with sea-sickness [8].