View clinical trials related to Vibration; Exposure.
Filter by:This study will investigate the biological mechanisms linking sleep disruption by vibration and noise, and the development of cardiometabolic disease. In a laboratory sleep study, the investigators will play railway vibration of different levels during the night. The investigators will also measure objective sleep quality and quantity, cognitive performance across multiple domains, self-reported sleep and wellbeing outcomes, and blood samples. Blood samples will be analyzed to identify metabolic changes and indicators of diabetes risk in different nights. Identifying biomarkers that are impacted by sleep fragmentation will establish the currently unclear pathways by which railway vibration exposure at night can lead to the development of diseases in the long term, especially metabolic disorders including diabetes.
Focal vibration is an adjustable instrument, which has the ability to apply vibration to a specific point at different hertz, powers and rhythms. The use of general or focused vibration is not new in the rehabilitation or sports field. Vibration is intended to stimulate neuromuscular uses to produce involuntary and additional contractions of muscle tissue, indirectly causing an increase in strength or muscle mass , improved fall prevention, mobility and bone consolidation. This type of device has been used both in athletes and in patients with chronic diseases or in intensive care units. There are studies that use vibration in critically ill patients because it is a safe and feasible intervention for dependent patients. One of the advantages of focal vibration is that it can be used in both unloading and loading, which allows a wide range of adaptation to each patient, even simultaneously during a training activity. The aim of the present study is to evaluate the effectiveness of a focal vibration treatment on strength, jumping and running speed in national federated athletes who perform sprinting and jumping in their sports practice. A sample will be recruited during the months of April to September, estimating a sample of 70 total subjects (35 subjects in the vibration group and 35 subjects in the vibration placebo group). Patients will receive a single treatment and assessments will be performed on the same day. The focal vibration group will receive a 30-minute quadriceps intervention. 3 channels will be used on the muscle bellies of the rectus anterior, vastus internus and vastus externus. The vibration program configuration will be in an automatic mode of 10 seconds of vibration 3 seconds of rest to avoid mechanoreceptor coupling. The frequency used will be between 60 Hz to 150 Hz with a power of 80%. The placebo group will perform the same treatment as the intervention group but without the focal vibration head contacting the skin (placebo). A sufficient space will be left between the head and the headgear so that the vibration does not touch the skin as shown in previous studies. A V-Plus machine (Wintecare S.A.) will be used for the vibration treatment. For the assessment measurements, a surface electromyograph, a force measurement dynamometer, the MyJump2 application for jump assessment and two photoelectric cells for sprint measurement will be used.
This study aims to exam the effectiveness of vibration training on muscle strength of lower limbs, functional recovery, and mood state among patients with acute stroke.
Spinal manipulation therapy (SMT) has long been a component of manual therapy and physical rehabilitation programs, especially as a modality for pain relief. However, the underlying physiological mechanisms for manipulation-related pain relief and functional improvement remain largely unexplored. To promote targeted treatments for musculoskeletal conditions and to better identify the indication and scope of SMT, its mechanisms must be better understood.
Centralisation of neonatal intensive care has led to an increase in postnatal inter-hospital transfers within the first 72 hours of life. Studies have shown transported preterm infants have an increased risk of intraventricular haemorrhage compared to inborns. The cause is likely multi-factorial, however, during the transportation process infants are exposed to noxious stimuli (excessive noise, vibration and temperature fluctuations), which may result in microscopic brain injury. However, there is a paucity of evidence to evaluate the effect of noise and vibration exposure during transportation. In this study the investigators aim to quantify the level of vibration and noise as experienced by a preterm infant during inter-hospital transportation in ground ambulance in the United Kingdom Secondary aims of the study are to: i) measure the physiological and biochemical changes that occur as a result of ambulance transportation (ii) quantify microscopic brain injury through measurement of urinary S100B and other biomarkers (iii) evaluate the development of intraventricular haemorrhage on cranial ultrasound iv) monitor vibration and sound exposure, using a prototype measuring system, during neonatal transport using both a manikin and a small cohort of neonatal patients. v) evaluate vibration and sound exposure levels using an updated transportation system modified to reduce effects.
The current project is a safety and health intervention focused on sleep and fatigue among truck driver teams (pairs), where one driver sleeps in a moving vehicle while the other partner drives. This study is conducted within the Oregon Healthy Workforce Center (OHWC), a NIOSH Center of Excellence in Total Worker Health. We will evaluate engineering and behavioral interventions to improve sleep, reduce fatigue, and impact Total Worker Health. An enhanced cab intervention will alter whole body vibrations during driving and sleep periods, and includes a therapeutic mattress system and an active suspension seat. The enhanced cab will be evaluated alone and in combination with a behavioral sleep intervention adapted from our effective SHIFT (Safety &Health Involvement For Truckers) program. The interventions prioritize hazard reduction according to the hierarchy of controls, and will be evaluated with a randomized controlled design.