Postural Control During Single-Leg Landing in Female Athletes After Anterior Cruciate Ligament Reconstruction
# Background Secondary anterior cruciate ligament (ACL) injury is a complication of ACL reconstruction (ACLR), which may result from altered neuromuscular control affecting anticipatory postural adjustments (APAs) and compensatory postural adjustments (CPAs) required for maintaining balance during...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
North American Sports Medicine Institute
2024-06-01
|
| Series: | International Journal of Sports Physical Therapy |
| Online Access: | https://doi.org/10.26603/001c.117400 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1825197035307925504 |
|---|---|
| author | Ayane Ogura Terumitsu Miyazaki Hirofumi Ida Satoshi Shibata Masahiro Takemura |
| author_facet | Ayane Ogura Terumitsu Miyazaki Hirofumi Ida Satoshi Shibata Masahiro Takemura |
| author_sort | Ayane Ogura |
| collection | DOAJ |
| description | # Background
Secondary anterior cruciate ligament (ACL) injury is a complication of ACL reconstruction (ACLR), which may result from altered neuromuscular control affecting anticipatory postural adjustments (APAs) and compensatory postural adjustments (CPAs) required for maintaining balance during movement. However, it remains unclear how APAs and CPAs differ in single-leg landings post-ACLR compared to healthy subjects.
# Purpose
The purpose of this study was to clarify the differences in muscle activities of APAs and CPAs, lower limb kinematics, and kinetics between athletes with a history of ACLR and healthy athletes during single-leg landing.
# Study design
Cross-sectional study.
# Methods
Eighteen female athletes were recruited and divided into ACLR (n = 9) and control groups (n = 9). The experimental task involved a single-leg landing from a 30 cm box. Joint angles and moments were determined using a 3-dimensional motion analysis system, while muscle activity was assessed using surface electromyography. Analysis intervals were divided into two phases: the APA phase (-150 ms to 50 ms) and the CPA phase (50 ms to 250 ms), with initial contact (0 ms) as the reference point. Muscle activity onset time was defined as the time when the baseline exceeded by the sum of mean values and 2 standard deviations.
# Results
No significant differences were observed in muscle activity or onset time between the ACLR and control groups. However, an increased hip external rotation moment was observed during the CPA phase in the ACLR group.
# Conclusion
These findings suggest that APAs and CPAs of athletes who returned to sports more than 1 year post-ACLR may be similar. The increased hip external rotation moment in the ACLR group during the CPA phase could represent a specific compensatory strategy to decrease the hip internal rotation angle post-ACLR.
# Level of Evidence
III |
| format | Article |
| id | doaj-art-b7ede868f0a5463e949ad92742eb8b36 |
| institution | Kabale University |
| issn | 2159-2896 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | North American Sports Medicine Institute |
| record_format | Article |
| series | International Journal of Sports Physical Therapy |
| spelling | doaj-art-b7ede868f0a5463e949ad92742eb8b362025-02-11T20:28:10ZengNorth American Sports Medicine InstituteInternational Journal of Sports Physical Therapy2159-28962024-06-01196Postural Control During Single-Leg Landing in Female Athletes After Anterior Cruciate Ligament ReconstructionAyane OguraTerumitsu MiyazakiHirofumi IdaSatoshi ShibataMasahiro Takemura# Background Secondary anterior cruciate ligament (ACL) injury is a complication of ACL reconstruction (ACLR), which may result from altered neuromuscular control affecting anticipatory postural adjustments (APAs) and compensatory postural adjustments (CPAs) required for maintaining balance during movement. However, it remains unclear how APAs and CPAs differ in single-leg landings post-ACLR compared to healthy subjects. # Purpose The purpose of this study was to clarify the differences in muscle activities of APAs and CPAs, lower limb kinematics, and kinetics between athletes with a history of ACLR and healthy athletes during single-leg landing. # Study design Cross-sectional study. # Methods Eighteen female athletes were recruited and divided into ACLR (n = 9) and control groups (n = 9). The experimental task involved a single-leg landing from a 30 cm box. Joint angles and moments were determined using a 3-dimensional motion analysis system, while muscle activity was assessed using surface electromyography. Analysis intervals were divided into two phases: the APA phase (-150 ms to 50 ms) and the CPA phase (50 ms to 250 ms), with initial contact (0 ms) as the reference point. Muscle activity onset time was defined as the time when the baseline exceeded by the sum of mean values and 2 standard deviations. # Results No significant differences were observed in muscle activity or onset time between the ACLR and control groups. However, an increased hip external rotation moment was observed during the CPA phase in the ACLR group. # Conclusion These findings suggest that APAs and CPAs of athletes who returned to sports more than 1 year post-ACLR may be similar. The increased hip external rotation moment in the ACLR group during the CPA phase could represent a specific compensatory strategy to decrease the hip internal rotation angle post-ACLR. # Level of Evidence IIIhttps://doi.org/10.26603/001c.117400 |
| spellingShingle | Ayane Ogura Terumitsu Miyazaki Hirofumi Ida Satoshi Shibata Masahiro Takemura Postural Control During Single-Leg Landing in Female Athletes After Anterior Cruciate Ligament Reconstruction International Journal of Sports Physical Therapy |
| title | Postural Control During Single-Leg Landing in Female Athletes After Anterior Cruciate Ligament Reconstruction |
| title_full | Postural Control During Single-Leg Landing in Female Athletes After Anterior Cruciate Ligament Reconstruction |
| title_fullStr | Postural Control During Single-Leg Landing in Female Athletes After Anterior Cruciate Ligament Reconstruction |
| title_full_unstemmed | Postural Control During Single-Leg Landing in Female Athletes After Anterior Cruciate Ligament Reconstruction |
| title_short | Postural Control During Single-Leg Landing in Female Athletes After Anterior Cruciate Ligament Reconstruction |
| title_sort | postural control during single leg landing in female athletes after anterior cruciate ligament reconstruction |
| url | https://doi.org/10.26603/001c.117400 |
| work_keys_str_mv | AT ayaneogura posturalcontrolduringsingleleglandinginfemaleathletesafteranteriorcruciateligamentreconstruction AT terumitsumiyazaki posturalcontrolduringsingleleglandinginfemaleathletesafteranteriorcruciateligamentreconstruction AT hirofumiida posturalcontrolduringsingleleglandinginfemaleathletesafteranteriorcruciateligamentreconstruction AT satoshishibata posturalcontrolduringsingleleglandinginfemaleathletesafteranteriorcruciateligamentreconstruction AT masahirotakemura posturalcontrolduringsingleleglandinginfemaleathletesafteranteriorcruciateligamentreconstruction |