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The influence of an orthopaedic walker boot on forefoot force

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Hoeffner, Rikke ; Agergaard, Anne-Sofie ; Funaro, Alessia ; Bjerregaard, Nicolai ; Svensson, Rene B ; Alkjaer, Tine ; Magnusson, S Peter. / The influence of an orthopaedic walker boot on forefoot force. In: The Foot. 2021 ; Vol. 46. pp. 101739.

Bibtex

@article{d6c301f009a34fc8a7b06aa5800d7024,
title = "The influence of an orthopaedic walker boot on forefoot force",
abstract = "BACKGROUND: In the treatment of an Achilles tendon rupture the patients are commonly equipped with an orthopaedic walker boot with wedges. To what extent this influences the tensile force placed on the Achilles tendon is unclear.PURPOSE: To assess the forefoot force and describe changes in muscle activity of the medial gastrocnemius, soleus and tibialis anterior when using one or three wedges during ambulation in a weightbearing orthopaedic walker boot.METHODS: The force on the forefoot was measured with a force sensor insole and muscle activity of the medial gastrocnemius, soleus and tibialis anterior were measured using surface electromyography in 10 healthy participants. Three different types of ambulation were performed (walking without crutches (unass.), walking with crutches (+crutch) and walking with crutches and verbal instructions to place body weight on heel (heel+crutch) with one and three heel wedges respectively.FINDINGS: The total peak force displayed an interaction where forefoot force decreased when wearing three wedges only for the +crutch ambulation type (80N, p=0.001) although there was a trend to decrease with three wedges also for the heel+crutch ambulation type (48N, p=0.05). The relative peak force on the forefoot showed a main effect with a significant decrease when using three wedges compared to one wedge across all three ambulation types (19.1%, p=0.009).INTERPRETATION: The force on the forefoot and hereby the Achilles tendon significantly decreased when using three wedges compared to one wedge. These findings have important implications for the rehabilitation post Achilles tendon rupture.",
keywords = "Achilles, Eloctromyography, Force, Muscle, Orthosis, Tendon",
author = "Rikke Hoeffner and Anne-Sofie Agergaard and Alessia Funaro and Nicolai Bjerregaard and Svensson, {Rene B} and Tine Alkjaer and Magnusson, {S Peter}",
note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2021",
month = mar,
doi = "10.1016/j.foot.2020.101739",
language = "English",
volume = "46",
pages = "101739",
journal = "The Foot",
issn = "0958-2592",
publisher = "Churchill Livingstone",

}

RIS

TY - JOUR

T1 - The influence of an orthopaedic walker boot on forefoot force

AU - Hoeffner, Rikke

AU - Agergaard, Anne-Sofie

AU - Funaro, Alessia

AU - Bjerregaard, Nicolai

AU - Svensson, Rene B

AU - Alkjaer, Tine

AU - Magnusson, S Peter

N1 - Publisher Copyright: © 2020 Elsevier Ltd Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2021/3

Y1 - 2021/3

N2 - BACKGROUND: In the treatment of an Achilles tendon rupture the patients are commonly equipped with an orthopaedic walker boot with wedges. To what extent this influences the tensile force placed on the Achilles tendon is unclear.PURPOSE: To assess the forefoot force and describe changes in muscle activity of the medial gastrocnemius, soleus and tibialis anterior when using one or three wedges during ambulation in a weightbearing orthopaedic walker boot.METHODS: The force on the forefoot was measured with a force sensor insole and muscle activity of the medial gastrocnemius, soleus and tibialis anterior were measured using surface electromyography in 10 healthy participants. Three different types of ambulation were performed (walking without crutches (unass.), walking with crutches (+crutch) and walking with crutches and verbal instructions to place body weight on heel (heel+crutch) with one and three heel wedges respectively.FINDINGS: The total peak force displayed an interaction where forefoot force decreased when wearing three wedges only for the +crutch ambulation type (80N, p=0.001) although there was a trend to decrease with three wedges also for the heel+crutch ambulation type (48N, p=0.05). The relative peak force on the forefoot showed a main effect with a significant decrease when using three wedges compared to one wedge across all three ambulation types (19.1%, p=0.009).INTERPRETATION: The force on the forefoot and hereby the Achilles tendon significantly decreased when using three wedges compared to one wedge. These findings have important implications for the rehabilitation post Achilles tendon rupture.

AB - BACKGROUND: In the treatment of an Achilles tendon rupture the patients are commonly equipped with an orthopaedic walker boot with wedges. To what extent this influences the tensile force placed on the Achilles tendon is unclear.PURPOSE: To assess the forefoot force and describe changes in muscle activity of the medial gastrocnemius, soleus and tibialis anterior when using one or three wedges during ambulation in a weightbearing orthopaedic walker boot.METHODS: The force on the forefoot was measured with a force sensor insole and muscle activity of the medial gastrocnemius, soleus and tibialis anterior were measured using surface electromyography in 10 healthy participants. Three different types of ambulation were performed (walking without crutches (unass.), walking with crutches (+crutch) and walking with crutches and verbal instructions to place body weight on heel (heel+crutch) with one and three heel wedges respectively.FINDINGS: The total peak force displayed an interaction where forefoot force decreased when wearing three wedges only for the +crutch ambulation type (80N, p=0.001) although there was a trend to decrease with three wedges also for the heel+crutch ambulation type (48N, p=0.05). The relative peak force on the forefoot showed a main effect with a significant decrease when using three wedges compared to one wedge across all three ambulation types (19.1%, p=0.009).INTERPRETATION: The force on the forefoot and hereby the Achilles tendon significantly decreased when using three wedges compared to one wedge. These findings have important implications for the rehabilitation post Achilles tendon rupture.

KW - Achilles

KW - Eloctromyography

KW - Force

KW - Muscle

KW - Orthosis

KW - Tendon

UR - http://www.scopus.com/inward/record.url?scp=85097236849&partnerID=8YFLogxK

U2 - 10.1016/j.foot.2020.101739

DO - 10.1016/j.foot.2020.101739

M3 - Journal article

C2 - 33285492

VL - 46

SP - 101739

JO - The Foot

JF - The Foot

SN - 0958-2592

M1 - 101739

ER -

ID: 61627269