POSSIBLE MECHANISMS OF LOW BACK PAIN DUE TO WHOLE-BODY VIBRATION

摘要: Abstract The investigators describe their multifaceted approach to the study of relationship between whole-body vibration and low back pain.In vitroexperiments, using percutaneous pin-mounted accelerometers have shown that natural frequency is at 4·5 Hz. response was affected by posture, seating, seat-back inclination. appears be largely determined rocking pelvis. Electromyographic studies muscle fatigue occurs under whole body vibration. After exposure a sudden load has greater latency. Vehicle driving may reason for pain or herniated nucleus pulposus. Prolonged seating exposure, coupled with should reduced those recovering from these problems. Vibration attenuating seats, correct ergonomic layout cabs reduce risks recurrence.