China
Africa
Explore chapters and articles related to this topic
Repetitive TasksRisk Assessment and Task Design
Published in R. S. Bridger, Introduction to Human Factors and Ergonomics, 2017
A “bursa” is a sac containing viscous fluid situated at places in tissues where friction would otherwise occur (bursa is the Greek word for wine skin and is related to the English word purse). There are about 150 bursae in the body and they act like cushions which protect muscles and tendons from rubbing against bones during movements of the body. Overexertion and injury can cause inflammation of bursae or bursitis. “Housemaid's knee” is a well-known type of occupational bursitis. Bunions are also a form of bursitis which is caused by wearing ill-fitting shoes—friction of the shoe on the bursa on the joint of the big toe causes it to become inflamed. Bursitis can be distinguished from tendonitis anatomically and because of the dull, aching pain that accompanies it—in contrast to the sharper pain of tendonitis.
Body Systems: The Basics
Published in Karen L. LaBat, Karen S. Ryan, Human Body, 2019
Bursae, the plural of bursa, are small fluid-filled pouches located between adjacent muscles, between bone and skin, or where a tendon slides over a bone. Bursae allow smooth motion of the body parts as they work together. Bursitis is inflammation of a bursa and is often seen adjacent to joints or other structures that are moved repetitively. The nervous system, described in the next section, is an essential component of body stability as well as body motion, as it monitors and initiates the interaction of muscles with the skeleton.
Advances in surgery for bursitis of the hip joint in adults
Published in K. Mohan Iyer, Hip Joint in Adults: Advances and Developments, 2018
Bursitis is the inflammation or irritation of the bursa. Numerous bursae have been described in the hip region, but only three have practical significance, namely bursa overlying the greater trochanter (Fig. 8.1), the ischio-gluteal bursa and the psoas bursae.
Work-related discomfort among floor-sitting sedge weavers: a cross-sectional survey
Published in International Journal of Occupational Safety and Ergonomics, 2021
Wanpen Thongsuk, Alan F. Geater
Buttock discomfort was itself more commonly reported by weavers who were obese (BMI ≥ 25). This might be related to their greater body weight. The condition of buttock pain among weavers who work in a sitting position for extended periods on a hard surface has been known for a long time, and has been given the colloquial term ‘weaver’s bottom’. It is believed to develop from pressure on the bursa that lies between the ischial tuberosity and the gluteus maximus muscle causing inflammation – ischiogluteal bursitis [27]. Taking regular short breaks during the day’s weaving to relieve the pressure on the gluteal muscles might be a way to reduce buttock pain [17].