INTRODUCTION Operators of construction equipment perform various duties at work that expose them to a variety of risk factors that may lead to health problems. A few of the health hazards among operators of construction equipment are: (a) whole-body vibration, (b) awkward postural requirements (including static sitting), (c) dust, (d) noise, (e) temperature extremes, and (f) shift work. It has ...

Whole body vibration (WBV) has been linked to lower back disorders (LBD’s). The purpose of this study is to determine whether crane operators are exposed to whole body vibration (WBV). If exposure exists then, do they exceed a current consensus standard. This information will be used to determine whether WBV should become a larger discussion item when purchasing cranes and or rebuilding. This i...

Understanding the behavior of human body under the influence of vibration is of great importance for the optimal motor vehicle system design. Therefore, great efforts are being done in order to discover as many information about the influence of vibration on human body as possible. So far the references show that the major scientific attention has been paid to vertical vibration, although inten...

There are many applications for a compact device that is capable of indicating the direction of propagation of substrate vibration. In order to develop effective devices for this purpose, it can be helpful to examine biological systems that have evolved specialized sensory systems for finding a vibration source. We are studying an insect model of vibration localization that provides an approach...

Most research has investigated the seat-to-head transmissibility during single-axis excitations. Associations between head accelerations and discomfort or effects on vision were reported. Possible differences between the seatto-head transmissibility determined during different vibration magnitudes with a variable number of excitation axes have not been systematically examined. An experimental s...

AIMS To assess the effect of whole body vibration on oxygen uptake and carbon dioxide production among overweight and obese women. METHODS In a randomized controlled trial, anthropometric measurements were taken in 20 adult overweight women. Ventilation of oxygen, carbon dioxide, and heart rate were measured using a portable gas-analysis system. After each exercise, a Borg's scale score was a...

OBJECTIVES To assess the effects of machine-induced vibration on workers and to determine effective precautions for vibration-induced trauma. SUBJECTS AND METHODS The study group consisted of 114 workers who were randomly selected: 50 rock drill workers and 64 truck heavy vehicle operators. Fifty-four office workers were designed as controls. The study and control groups were age-matched. All...

Whole-body vibration (WBV) involves standing on a machine with a flat plate which tilts slightly around an axle and sends vibrations through the entire body. The aim for the person standing on the machine is to keep the head and body steady and upright. In this way the person exercises all the muscles that keep the body in this position. The amount of time spent on the machine varies but even s...

305 Received September 11, 2013; revised and accepted November 26, 2013. Published online December 14, 2013; doi: 10.1620/tjem.231.305. Correspondence: Changho Song, P.T., Ph.D., Department of Physical Therapy, Sahmyook University, 26-21 Gongneung 2-dong, Nowon-gu, Seoul 139-742, Republic of Korea. e-mail: [email protected] Whole-Body Vibration Training Improves Balance, Muscle Strength and Glyc...

The aim of this study was to analyze electromyography (EMG) responses of vastus lateralis muscle to different whole-body vibration frequencies. For this purpose, 16 professional women volleyball players (age, 23.9 +/- 3.6 years; height, 182.5 +/- 11.1 cm; weight, 78.4 +/- 5.6 kg) voluntarily participated in the study. Vibration treatment was administered while standing on a vibrating platform w...