Effects of Acute Fatigue of the Tibialis Anterior Due to a Weight-Bearing Muscle Activity on the Ankle Joint Position Sense in Healthy Subjects
Background: Joint position sense (JPS) is comprised of sensory input from several sources, including skin, joint capsule/ligaments, and muscular receptors. If the muscle receptors play a leading role in detecting joint position awareness, then muscle fatigue might yield a declination in JPS. The...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Shiraz University of Medical Sciences
2014-09-01
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| Series: | Journal of Rehabilitation Sciences and Research |
| Subjects: | |
| Online Access: | http://jrsr.sums.ac.ir/index.php/jrsr/article/view/11/33 |
| _version_ | 1818215875672539136 |
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| author | Ali Ghanbari Farahnaz Ghafarinejad Farshid Mohammadi |
| author_facet | Ali Ghanbari Farahnaz Ghafarinejad Farshid Mohammadi |
| author_sort | Ali Ghanbari |
| collection | DOAJ |
| description | Background: Joint position sense (JPS) is comprised of sensory input from
several sources, including skin, joint capsule/ligaments, and muscular receptors.
If the muscle receptors play a leading role in detecting joint position awareness,
then muscle fatigue might yield a declination in JPS. The aim of this study was
to evaluate if a sustained fatiguing contraction of the tibialis anterior (ankle
dorsiflexor) could alter the ankle JPS.
Methods: This was a cross-sectional study in which 40 healthy subjects (age,
23.9±2.3 years; height, 172.6±5.7 cm; weight, 67.8±4.7 kg) were recruited.
Subjects were asked to recognize 2 pre-recognized positions (10° in dorsiflexion
(DF) and 21° in plantarflexion (PF)) for 2 experimental conditions: normal and
fatigued. Muscular fatigue was induced in the tibialis anterior of the dominant
leg by using an isometric test. The average of the absolute angular error (AAE)
deviations from the target positions of three trials were recorded as scores for
both fatigue and non-fatigue conditions.
Results: There was significant decrease in subjects’ abilities to recognize active
and passive repositioning of their ankle after a fatigue protocol (P=0.0001).
Conclusion: The acuity of the ankle JPS is reduced subsequent to a fatigue
protocol. |
| first_indexed | 2024-12-12T06:43:02Z |
| format | Article |
| id | doaj.art-2eded53081474c368945349ea2b8cb48 |
| institution | Directory Open Access Journal |
| issn | 2345-6159 2345-6159 |
| language | English |
| last_indexed | 2024-12-12T06:43:02Z |
| publishDate | 2014-09-01 |
| publisher | Shiraz University of Medical Sciences |
| record_format | Article |
| series | Journal of Rehabilitation Sciences and Research |
| spelling | doaj.art-2eded53081474c368945349ea2b8cb482022-12-22T00:34:16ZengShiraz University of Medical SciencesJournal of Rehabilitation Sciences and Research2345-61592345-61592014-09-01136771Effects of Acute Fatigue of the Tibialis Anterior Due to a Weight-Bearing Muscle Activity on the Ankle Joint Position Sense in Healthy SubjectsAli Ghanbari0Farahnaz Ghafarinejad1Farshid Mohammadi2Department of Physiotherapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, IranDepartment of Physiotherapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, IranDepartment of Physiotherapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, IranBackground: Joint position sense (JPS) is comprised of sensory input from several sources, including skin, joint capsule/ligaments, and muscular receptors. If the muscle receptors play a leading role in detecting joint position awareness, then muscle fatigue might yield a declination in JPS. The aim of this study was to evaluate if a sustained fatiguing contraction of the tibialis anterior (ankle dorsiflexor) could alter the ankle JPS. Methods: This was a cross-sectional study in which 40 healthy subjects (age, 23.9±2.3 years; height, 172.6±5.7 cm; weight, 67.8±4.7 kg) were recruited. Subjects were asked to recognize 2 pre-recognized positions (10° in dorsiflexion (DF) and 21° in plantarflexion (PF)) for 2 experimental conditions: normal and fatigued. Muscular fatigue was induced in the tibialis anterior of the dominant leg by using an isometric test. The average of the absolute angular error (AAE) deviations from the target positions of three trials were recorded as scores for both fatigue and non-fatigue conditions. Results: There was significant decrease in subjects’ abilities to recognize active and passive repositioning of their ankle after a fatigue protocol (P=0.0001). Conclusion: The acuity of the ankle JPS is reduced subsequent to a fatigue protocol.http://jrsr.sums.ac.ir/index.php/jrsr/article/view/11/33Joint position senseFatigueWeight bearing activityAnkle joint |
| spellingShingle | Ali Ghanbari Farahnaz Ghafarinejad Farshid Mohammadi Effects of Acute Fatigue of the Tibialis Anterior Due to a Weight-Bearing Muscle Activity on the Ankle Joint Position Sense in Healthy Subjects Journal of Rehabilitation Sciences and Research Joint position sense Fatigue Weight bearing activity Ankle joint |
| title | Effects of Acute Fatigue of the Tibialis Anterior Due to a Weight-Bearing Muscle Activity on the Ankle Joint Position Sense in Healthy Subjects |
| title_full | Effects of Acute Fatigue of the Tibialis Anterior Due to a Weight-Bearing Muscle Activity on the Ankle Joint Position Sense in Healthy Subjects |
| title_fullStr | Effects of Acute Fatigue of the Tibialis Anterior Due to a Weight-Bearing Muscle Activity on the Ankle Joint Position Sense in Healthy Subjects |
| title_full_unstemmed | Effects of Acute Fatigue of the Tibialis Anterior Due to a Weight-Bearing Muscle Activity on the Ankle Joint Position Sense in Healthy Subjects |
| title_short | Effects of Acute Fatigue of the Tibialis Anterior Due to a Weight-Bearing Muscle Activity on the Ankle Joint Position Sense in Healthy Subjects |
| title_sort | effects of acute fatigue of the tibialis anterior due to a weight bearing muscle activity on the ankle joint position sense in healthy subjects |
| topic | Joint position sense Fatigue Weight bearing activity Ankle joint |
| url | http://jrsr.sums.ac.ir/index.php/jrsr/article/view/11/33 |
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