Effect of speed and gradient on plantar force when running on an AlterG® treadmill

<h3>Background</h3><p dir="ltr">Anti-gravity treadmills are used to decrease musculoskeletal loading during treadmill running often in return to play rehabilitation programs. The effect different gradients (uphill/downhill running) have on kinetics and spatiotemporal para...

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Main Author: Athol Thomson (6651008) (author)
Other Authors: Rodney Whiteley (6651011) (author), Clint Hansen (4184266) (author), Julius Welzel (10501816) (author), Sebastien Racinais (318896) (author), Mathew G. Wilson (10501819) (author)
Published: 2021
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_version_ 1864513541980028928
author Athol Thomson (6651008)
author2 Rodney Whiteley (6651011)
Clint Hansen (4184266)
Julius Welzel (10501816)
Sebastien Racinais (318896)
Mathew G. Wilson (10501819)
author2_role author
author
author
author
author
author_facet Athol Thomson (6651008)
Rodney Whiteley (6651011)
Clint Hansen (4184266)
Julius Welzel (10501816)
Sebastien Racinais (318896)
Mathew G. Wilson (10501819)
author_role author
dc.creator.none.fl_str_mv Athol Thomson (6651008)
Rodney Whiteley (6651011)
Clint Hansen (4184266)
Julius Welzel (10501816)
Sebastien Racinais (318896)
Mathew G. Wilson (10501819)
dc.date.none.fl_str_mv 2021-03-30T06:00:00Z
dc.identifier.none.fl_str_mv 10.1186/s13102-021-00258-4
dc.relation.none.fl_str_mv https://figshare.com/articles/journal_contribution/Effect_of_speed_and_gradient_on_plantar_force_when_running_on_an_AlterG_treadmill/21598485
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
Clinical sciences
Health sciences
Allied health and rehabilitation science
Plantar force
In-shoe force
Rehabilitation
Running
Biomechanics
dc.title.none.fl_str_mv Effect of speed and gradient on plantar force when running on an AlterG® treadmill
dc.type.none.fl_str_mv Text
Journal contribution
info:eu-repo/semantics/publishedVersion
text
contribution to journal
description <h3>Background</h3><p dir="ltr">Anti-gravity treadmills are used to decrease musculoskeletal loading during treadmill running often in return to play rehabilitation programs. The effect different gradients (uphill/downhill running) have on kinetics and spatiotemporal parameters when using an AlterG® treadmill is unclear with previous research focused on level running only.</p><h3>Methods</h3><p dir="ltr">Ten well-trained healthy male running athletes ran on the AlterG® treadmill at varying combinations of bodyweight support (60, 80, and 100% BW), speed (12 km/hr., 15 km/hr., 18 km/hr., 21 km/hr., and 24 km/hr), and gradients (− 15% decline, − 10, − 5, 0, + 5, + 10 + 15% incline), representing a total of 78 conditions performed in random order. Maximum plantar force and contact time were recorded using a wireless in-shoe force sensor insole system.</p><h3>Results</h3><p dir="ltr">Regression analysis showed a linear relationship for maximum plantar force with bodyweight support and running speeds for level running (p < 0.0001, adj. R2 = 0.604). The linear relationship, however, does not hold for negative gradients at speeds 12 & 15 km/h, with a relative ‘dip’ in maximum plantar force across all assisted bodyweight settings.</p><h3>Conclusions</h3><p dir="ltr">Maximum plantar force peaks are larger with faster running and smaller with more AlterG® assisted bodyweight support (athlete unweighing). Gradient made little difference except for a downhill grade of − 5% decreasing force peaks as compared to level or uphill running.</p><h2>Other Information</h2><p dir="ltr">Published in: BMC Sports Science, Medicine and Rehabilitation<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1186/s13102-021-00258-4" target="_blank">http://dx.doi.org/10.1186/s13102-021-00258-4</a></p>
eu_rights_str_mv openAccess
id Manara2_7fa935bb59e2a7da3d7d239f73aff789
identifier_str_mv 10.1186/s13102-021-00258-4
network_acronym_str Manara2
network_name_str Manara2
oai_identifier_str oai:figshare.com:article/21598485
publishDate 2021
repository.mail.fl_str_mv
repository.name.fl_str_mv
repository_id_str
rights_invalid_str_mv CC BY 4.0
spelling Effect of speed and gradient on plantar force when running on an AlterG® treadmillAthol Thomson (6651008)Rodney Whiteley (6651011)Clint Hansen (4184266)Julius Welzel (10501816)Sebastien Racinais (318896)Mathew G. Wilson (10501819)Biomedical and clinical sciencesClinical sciencesHealth sciencesAllied health and rehabilitation sciencePlantar forceIn-shoe forceRehabilitationRunningBiomechanics<h3>Background</h3><p dir="ltr">Anti-gravity treadmills are used to decrease musculoskeletal loading during treadmill running often in return to play rehabilitation programs. The effect different gradients (uphill/downhill running) have on kinetics and spatiotemporal parameters when using an AlterG® treadmill is unclear with previous research focused on level running only.</p><h3>Methods</h3><p dir="ltr">Ten well-trained healthy male running athletes ran on the AlterG® treadmill at varying combinations of bodyweight support (60, 80, and 100% BW), speed (12 km/hr., 15 km/hr., 18 km/hr., 21 km/hr., and 24 km/hr), and gradients (− 15% decline, − 10, − 5, 0, + 5, + 10 + 15% incline), representing a total of 78 conditions performed in random order. Maximum plantar force and contact time were recorded using a wireless in-shoe force sensor insole system.</p><h3>Results</h3><p dir="ltr">Regression analysis showed a linear relationship for maximum plantar force with bodyweight support and running speeds for level running (p < 0.0001, adj. R2 = 0.604). The linear relationship, however, does not hold for negative gradients at speeds 12 & 15 km/h, with a relative ‘dip’ in maximum plantar force across all assisted bodyweight settings.</p><h3>Conclusions</h3><p dir="ltr">Maximum plantar force peaks are larger with faster running and smaller with more AlterG® assisted bodyweight support (athlete unweighing). Gradient made little difference except for a downhill grade of − 5% decreasing force peaks as compared to level or uphill running.</p><h2>Other Information</h2><p dir="ltr">Published in: BMC Sports Science, Medicine and Rehabilitation<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1186/s13102-021-00258-4" target="_blank">http://dx.doi.org/10.1186/s13102-021-00258-4</a></p>2021-03-30T06:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1186/s13102-021-00258-4https://figshare.com/articles/journal_contribution/Effect_of_speed_and_gradient_on_plantar_force_when_running_on_an_AlterG_treadmill/21598485CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/215984852021-03-30T06:00:00Z
spellingShingle Effect of speed and gradient on plantar force when running on an AlterG® treadmill
Athol Thomson (6651008)
Biomedical and clinical sciences
Clinical sciences
Health sciences
Allied health and rehabilitation science
Plantar force
In-shoe force
Rehabilitation
Running
Biomechanics
status_str publishedVersion
title Effect of speed and gradient on plantar force when running on an AlterG® treadmill
title_full Effect of speed and gradient on plantar force when running on an AlterG® treadmill
title_fullStr Effect of speed and gradient on plantar force when running on an AlterG® treadmill
title_full_unstemmed Effect of speed and gradient on plantar force when running on an AlterG® treadmill
title_short Effect of speed and gradient on plantar force when running on an AlterG® treadmill
title_sort Effect of speed and gradient on plantar force when running on an AlterG® treadmill
topic Biomedical and clinical sciences
Clinical sciences
Health sciences
Allied health and rehabilitation science
Plantar force
In-shoe force
Rehabilitation
Running
Biomechanics