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Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
Published on: December 18, 2016
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Quantitative MRI reveals infrapatellar fat pad changes after running a marathon.
Xiang Bo Zhao1,2, Haifeng Zhao1,2, Wen Juan Du1,2
1The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China.
Peerj
|March 24, 2025
Summary
Marathon running causes significant changes in the infrapatellar fat pad (IFP), increasing its fat fraction and decreasing its volume. These adaptations may enhance knee cushioning but warrant further study for injury prevention.
Area of Science:
- Orthopedics
- Sports Medicine
- Radiology
Background:
- Marathon running is linked to knee injuries.
- The infrapatellar fat pad (IFP) is crucial for knee health.
- Understanding IFP response to running stress is important.
Purpose of the Study:
- Investigate infrapatellar fat pad (IFP) adaptations after marathon running.
- Utilize quantitative magnetic resonance imaging (MRI) to assess IFP changes.
- Correlate IFP parameter changes with runner characteristics.
Main Methods:
- Prospective enrollment of 14 amateur marathon runners.
- Quantitative 3.0T MRI (MAGiC, IDEAL-IQ) pre- and post-marathon.
- Analysis of IFP fat fraction (FF), T1/T2 values, volume, and cross-sectional area.
Main Results:
- Post-marathon, IFP fat fraction (FF) significantly increased (p < 0.05).
- IFP volume significantly decreased (p < 0.05) with morphological compression.
- Increased FF negatively correlated with body weight and BMI (p < 0.05).
Conclusions:
- Marathon running induces significant IFP adaptations, including increased FF and fluid shifts.
- These changes suggest enhanced cushioning and load dissipation capacity.
- Further research is needed to link these adaptations to injury prevention and rehabilitation.
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