Related Experiment Video
Updated: Jun 10, 2026

07:43
In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
Published on: July 2, 2021
Risk factors for hip problems among assembly plant workers
Robert A Werner1, Nancy Gell, Anne Hartigan
1Department of Physical Medicine and Rehabilitation, University of Michigan Health System, Ann Arbor, MI, USA. rawerner@umich.edu
Journal of Occupational Rehabilitation
|July 28, 2010
Summary
Hip disorders are linked to aging, female gender, flat feet (pes planus), smoking, and prior injuries. Carpeted surfaces may offer protection against these conditions.
Area of Science:
- Occupational Health
- Biomechanics
- Epidemiology
Background:
- Hip disorders represent a significant health concern, particularly in occupational settings.
- Understanding risk factors is crucial for developing targeted prevention strategies.
Purpose of the Study:
- To investigate the multifactorial contributions to hip disorder prevalence.
- To identify specific work activities, biomechanical factors, and demographic/medical history elements associated with hip disorders.
Main Methods:
- A cross-sectional observational study design was employed.
- Data collected from engine assembly plant workers included demographics, medical history, ergonomic exposures, psychosocial factors, shoe characteristics, and foot biomechanics.
- Logistic regression analysis was used to determine significant risk factors.
Main Results:
- Significant risk factors for hip disorders included increasing age, female gender, pes planus (flat feet), smoking, history of knee or hip injury, and rheumatoid arthritis.
- Conversely, spending time on carpeted surfaces was found to be protective.
Conclusions:
- Hip disorders are associated with both a history of biomechanical trauma to the hip and gait abnormalities like pes planus.
- These findings highlight the importance of considering biomechanical and occupational factors in hip health.
Related Concept Videos
Bones of the Lower Limb: Femur and Patella
The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...
Spindle Assembly
Spindle assembly occurs through three, often coexisting, pathways – the centrosome-mediated pathway, the chromatin-mediated pathway, and the microtubule-mediated pathway – collectively contributing to form a robust spindle apparatus.
In most cells, centrosomes are the primary microtubule nucleation centers. In the centrosome-mediated pathway, the G2-prophase transition triggers centrosome maturation and increased microtubule nucleation. Progressive nucleation results in a microtubule array...
In most cells, centrosomes are the primary microtubule nucleation centers. In the centrosome-mediated pathway, the G2-prophase transition triggers centrosome maturation and increased microtubule nucleation. Progressive nucleation results in a microtubule array...
Bone Disorders
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...