Abstract
BackgroundReestablishing knee stability is the core of the treatment of ACL (Anterior Cruciate Ligament) injury. Some patients still have a feeling of instability of the knee after ACL injury treatment. This unstable feeling may be caused by central nervous system changes after ACL rupture.MethodsTo identify the central changes after ACL rupture, EEG spectra were recorded to compare ACL patients and healthy controls when they were walking, jogging, and landing.ResultsThere was a significant increase in delta, theta, alpha and beta band power during walking, jogging and landing in ACL patients. We also found an asymmetry phenomenon of EEG only in the ACL patients, mainly in the frontal area and central-parietal area. The asymmetry of beta band power extended to the frontal and the central area during jogging and landing task.ConclusionsThere were significant differences in EEG power spectra between the ACL patients and healthy people. ACL patients showed high EEG band power activities and an asymmetry phenomenon. EEG power changes were affected by movements, the asymmetry extended when performing more complicated movements.
Highlights
Anterior cruciate ligament (ACL) rupture is one of the most common sport injuries
The interaction of location × group (F (2, 58) = 1.280, p = 0.279, η2P = 0.042) was not significant. These results suggest that compared with the healthy group, the delta band power significantly increased in the ACL rupture group, and this increase was observed in all locations (Table 2, line 1–3, column 1–2)
The interaction of location × group (F (2, 58) = 25.666, p
Summary
Reestablishing knee stability is the core of the treatment of ACL (Anterior Cruciate Ligament) injury. Some patients still have a feeling of instability of the knee after ACL injury treatment. This unstable feeling may be caused by central nervous system changes after ACL rupture. Data availability statement: all relevant data is in the paper and supporting information files. We declare no further external financial support
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