Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill running
<h3>Introduction</h3><p dir="ltr">We characterized the magnitude and range of gait asymmetry during self-paced treadmill running.</p><h3>Methods</h3><p dir="ltr">On an instrumented treadmill, twelve trained runners (11 males, 1 female) co...
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| مؤلفون آخرون: | , , , |
| منشور في: |
2023
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| الموضوعات: | |
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إضافة وسم
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| _version_ | 1864513507633922048 |
|---|---|
| author | Khouloud Mtibaa (10110879) |
| author2 | Nidhal Zarrouk (6263816) Joong Hyun Ryu (14150556) Sébastien Racinais (3712126) Olivier Girard (409080) |
| author2_role | author author author author |
| author_facet | Khouloud Mtibaa (10110879) Nidhal Zarrouk (6263816) Joong Hyun Ryu (14150556) Sébastien Racinais (3712126) Olivier Girard (409080) |
| author_role | author |
| dc.creator.none.fl_str_mv | Khouloud Mtibaa (10110879) Nidhal Zarrouk (6263816) Joong Hyun Ryu (14150556) Sébastien Racinais (3712126) Olivier Girard (409080) |
| dc.date.none.fl_str_mv | 2023-12-18T09:00:00Z |
| dc.identifier.none.fl_str_mv | 10.3389/fphys.2023.1289172 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Mechanical_asymmetries_remain_low-to-moderate_during_30_min_of_self-paced_treadmill_running/26788486 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Biomedical and clinical sciences Medical physiology Health sciences Sports science and exercise symmetry angle scores asymmetry pacing running mechanics ground reaction forces |
| dc.title.none.fl_str_mv | Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill running |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <h3>Introduction</h3><p dir="ltr">We characterized the magnitude and range of gait asymmetry during self-paced treadmill running.</p><h3>Methods</h3><p dir="ltr">On an instrumented treadmill, twelve trained runners (11 males, 1 female) completed a 30-min self-paced run, during which participants were instructed to cover the most distance possible. Ground reaction force recordings at a constant velocity corresponding to 70% of their maximal aerobic velocity (13.3 ± 0.8 km.h<sup>−1</sup>) allowed for the measurement of running kinetics and kinematics, as well as the calculation of spring-mass characteristics at the beginning, middle, and end of the run (minutes 1, 14, and 29, respectively). Group mean asymmetry scores were assessed using the “symmetry angle” (SA) formulae, where scores of 0% and 100% represent perfect symmetry and perfect asymmetry, respectively.</p><h3>Results</h3><p dir="ltr">There was no time effect on SA scores for any of the 13 biomechanical variables (<i>p</i> ≥ 0.128). Mean SA scores were <2.5% for contact time (0.8% ± 0.7%), flight time (1.4% ± 0.6%), step frequency (0.7% ± 0.3%), duty factor (0.7% ± 0.3%), duration of braking (1.3% ± 0.7%) and push-off phases (0.9% ± 0.8%), as well as peak braking (2.3% ± 1.3%) and push-off forces (1.4% ± 0.9%). Mean SA scores were ≥2.5% for peak vertical loading rate (3.1% ± 1.7%), mean vertical loading rate (3.4% ± 2.1%), peak vertical forces (2.9% ± 2.2%), as well as vertical stiffness (5.2% ± 3.5%) and leg stiffness (2.5% ± 1.5%).</p><h3>Conclusion</h3><p dir="ltr">Throughout a 30-min running time trial, there were consistently low-to-moderate mechanical asymmetries for spatiotemporal variables, kinetics, and spring-mass model characteristics. This suggests that trained runners maintained relatively even strides during the self-paced treadmill run, with lower extremities behaving similarly when controlling for velocity.</p><h2>Other Information</h2><p dir="ltr">Published in: Frontiers in Physiology<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/fphys.2023.1289172" target="_blank">https://dx.doi.org/10.3389/fphys.2023.1289172</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_ad9a0b56e612b9598894e532eb0d949e |
| identifier_str_mv | 10.3389/fphys.2023.1289172 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/26788486 |
| publishDate | 2023 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill runningKhouloud Mtibaa (10110879)Nidhal Zarrouk (6263816)Joong Hyun Ryu (14150556)Sébastien Racinais (3712126)Olivier Girard (409080)Biomedical and clinical sciencesMedical physiologyHealth sciencesSports science and exercisesymmetry angle scoresasymmetrypacingrunning mechanicsground reaction forces<h3>Introduction</h3><p dir="ltr">We characterized the magnitude and range of gait asymmetry during self-paced treadmill running.</p><h3>Methods</h3><p dir="ltr">On an instrumented treadmill, twelve trained runners (11 males, 1 female) completed a 30-min self-paced run, during which participants were instructed to cover the most distance possible. Ground reaction force recordings at a constant velocity corresponding to 70% of their maximal aerobic velocity (13.3 ± 0.8 km.h<sup>−1</sup>) allowed for the measurement of running kinetics and kinematics, as well as the calculation of spring-mass characteristics at the beginning, middle, and end of the run (minutes 1, 14, and 29, respectively). Group mean asymmetry scores were assessed using the “symmetry angle” (SA) formulae, where scores of 0% and 100% represent perfect symmetry and perfect asymmetry, respectively.</p><h3>Results</h3><p dir="ltr">There was no time effect on SA scores for any of the 13 biomechanical variables (<i>p</i> ≥ 0.128). Mean SA scores were <2.5% for contact time (0.8% ± 0.7%), flight time (1.4% ± 0.6%), step frequency (0.7% ± 0.3%), duty factor (0.7% ± 0.3%), duration of braking (1.3% ± 0.7%) and push-off phases (0.9% ± 0.8%), as well as peak braking (2.3% ± 1.3%) and push-off forces (1.4% ± 0.9%). Mean SA scores were ≥2.5% for peak vertical loading rate (3.1% ± 1.7%), mean vertical loading rate (3.4% ± 2.1%), peak vertical forces (2.9% ± 2.2%), as well as vertical stiffness (5.2% ± 3.5%) and leg stiffness (2.5% ± 1.5%).</p><h3>Conclusion</h3><p dir="ltr">Throughout a 30-min running time trial, there were consistently low-to-moderate mechanical asymmetries for spatiotemporal variables, kinetics, and spring-mass model characteristics. This suggests that trained runners maintained relatively even strides during the self-paced treadmill run, with lower extremities behaving similarly when controlling for velocity.</p><h2>Other Information</h2><p dir="ltr">Published in: Frontiers in Physiology<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/fphys.2023.1289172" target="_blank">https://dx.doi.org/10.3389/fphys.2023.1289172</a></p>2023-12-18T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.3389/fphys.2023.1289172https://figshare.com/articles/journal_contribution/Mechanical_asymmetries_remain_low-to-moderate_during_30_min_of_self-paced_treadmill_running/26788486CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/267884862023-12-18T09:00:00Z |
| spellingShingle | Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill running Khouloud Mtibaa (10110879) Biomedical and clinical sciences Medical physiology Health sciences Sports science and exercise symmetry angle scores asymmetry pacing running mechanics ground reaction forces |
| status_str | publishedVersion |
| title | Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill running |
| title_full | Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill running |
| title_fullStr | Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill running |
| title_full_unstemmed | Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill running |
| title_short | Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill running |
| title_sort | Mechanical asymmetries remain low-to-moderate during 30 min of self-paced treadmill running |
| topic | Biomedical and clinical sciences Medical physiology Health sciences Sports science and exercise symmetry angle scores asymmetry pacing running mechanics ground reaction forces |