Related Experiment Video
Updated: Jul 12, 2025
07:43
In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
Published on: July 2, 2021
3.1K
Relationship Between Obesity and Medial Longitudinal Arch Bowing
Ki Chun Kim1, Aly Fayed2, Eli Schmidt2
1Department of Orthopaedic Surgery, Seoul Medical Center, Seoul, South Korea.
Foot & Ankle International
|October 30, 2023
Summary
Obesity negatively impacts the medial longitudinal arch (MLA) of the foot. Increased body mass index (BMI) is associated with changes in foot parameters, indicating potential arch collapse.
Area of Science:
- Orthopaedic Surgery
- Radiology
- Biomechanics
Background:
- Previous studies suggest a link between obesity and the medial longitudinal arch (MLA) of the foot.
- The severity of obesity, classified by the World Health Organization, may influence MLA parameters.
Purpose of the Study:
- To investigate how MLA parameters change across different obesity classifications.
- To assess the relationship between obesity severity and foot biomechanics using weight-bearing computed tomography (WBCT).
Main Methods:
- Retrospective analysis of WBCT data from 220 participants (44 per obesity class).
- Measurement of 12 foot and ankle parameters, including talonavicular angle (TNA) and talus-first metatarsal angle (TMT1A).
- Statistical analysis using ANOVA, Welch's test, Kruskal-Wallis, and Pearson correlation to assess obesity's impact on MLA parameters and BMI correlation.
Main Results:
- Excellent intra- and interobserver reliability was achieved for most measurements.
- Significant differences in TNA and TMT1A were observed across obesity classifications.
- Forefoot arch angle, TNA, TMT1A, and navicular floor distance showed statistically significant correlations with BMI.
Conclusions:
- Obesity classification significantly influences the talonavicular joint, a key component of the MLA.
- Increased BMI is associated with a negative impact on the medial longitudinal arch, suggesting a higher risk of plantar collapse.
More Related Videos
Related Concept Videos
01:24Obesity
510
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
510
01:09Changes in the Appendicular Skeleton with Age
2.0K
The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
2.0K
01:29Bone Disorders
3.6K
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...
3.6K
01:16Bones of the Lower Limb: Femur and Patella
2.5K
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...
2.5K