Hip joint contact forces increase in response to greater body-borne loads and faster walking speeds

Gavin K. Lenton; Tim L. A. Doyle; David G. Lloyd; Claudio Pizzolato; David J. Saxby

Hip joint contact forces increase in response to greater body-borne loads and faster walking speeds

Gavin K. Lenton, Tim L. A. Doyle, David G. Lloyd, Claudio Pizzolato, David J. Saxby

Department of Health Professions

Research output: Contribution to conference › Abstract

Abstract

Soldiers perform physically demanding tasks that predispose them to elevated risk of musculoskeletal injury (MSKI). Understanding joint loading during commonly performed tasks, e.g., load carriage, may improve MSKI prevention efforts, yet current research is limited. Using EMG-informed neuromusculoskeletal (NMSK) models, we analyzed hip contact forces (HCF) from 20 soldier participants as they carried two different loads and walked at two different speeds. Increases in HCF were observed from both increases in carried load and walking speed, with HCF magnitudes approaching values observed during running. Importantly, muscles accounted for >50% of the total HCF and this contribution remained consistent with increasing task demands. Thus, our results suggest the effectiveness of injury prevention strategies should be analyzed using NMSK modeling approaches that incorporate estimates of muscle forces.

Original language	English
Pages	1047
Number of pages	1
Publication status	Published - 31 Jul 2019
Event	XXVII Congress of the International Society of Biomechanics - Calgary, Canada Duration: 31 Jul 2019 → 4 Aug 2019 Conference number: XXVII https://www.isb2019.com/

Conference

Conference	XXVII Congress of the International Society of Biomechanics
Abbreviated title	ISB/ASB 2019
Country	Canada
City	Calgary
Period	31/07/19 → 4/08/19
Internet address	https://www.isb2019.com/

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@conference{bff4fb6c19ff4ef0845f12dc928ec4e8,

title = "Hip joint contact forces increase in response to greater body-borne loads and faster walking speeds",

abstract = "Soldiers perform physically demanding tasks that predispose them to elevated risk of musculoskeletal injury (MSKI). Understanding joint loading during commonly performed tasks, e.g., load carriage, may improve MSKI prevention efforts, yet current research is limited. Using EMG-informed neuromusculoskeletal (NMSK) models, we analyzed hip contact forces (HCF) from 20 soldier participants as they carried two different loads and walked at two different speeds. Increases in HCF were observed from both increases in carried load and walking speed, with HCF magnitudes approaching values observed during running. Importantly, muscles accounted for >50{\%} of the total HCF and this contribution remained consistent with increasing task demands. Thus, our results suggest the effectiveness of injury prevention strategies should be analyzed using NMSK modeling approaches that incorporate estimates of muscle forces.",

author = "Lenton, {Gavin K.} and Doyle, {Tim L. A.} and Lloyd, {David G.} and Claudio Pizzolato and Saxby, {David J.}",

year = "2019",

month = "7",

day = "31",

language = "English",

pages = "1047",

note = "XXVII Congress of the International Society of Biomechanics, ISB/ASB 2019 ; Conference date: 31-07-2019 Through 04-08-2019",

url = "https://www.isb2019.com/",

}

TY - CONF

T1 - Hip joint contact forces increase in response to greater body-borne loads and faster walking speeds

AU - Lenton, Gavin K.

AU - Doyle, Tim L. A.

AU - Lloyd, David G.

AU - Pizzolato, Claudio

AU - Saxby, David J.

PY - 2019/7/31

Y1 - 2019/7/31

N2 - Soldiers perform physically demanding tasks that predispose them to elevated risk of musculoskeletal injury (MSKI). Understanding joint loading during commonly performed tasks, e.g., load carriage, may improve MSKI prevention efforts, yet current research is limited. Using EMG-informed neuromusculoskeletal (NMSK) models, we analyzed hip contact forces (HCF) from 20 soldier participants as they carried two different loads and walked at two different speeds. Increases in HCF were observed from both increases in carried load and walking speed, with HCF magnitudes approaching values observed during running. Importantly, muscles accounted for >50% of the total HCF and this contribution remained consistent with increasing task demands. Thus, our results suggest the effectiveness of injury prevention strategies should be analyzed using NMSK modeling approaches that incorporate estimates of muscle forces.

AB - Soldiers perform physically demanding tasks that predispose them to elevated risk of musculoskeletal injury (MSKI). Understanding joint loading during commonly performed tasks, e.g., load carriage, may improve MSKI prevention efforts, yet current research is limited. Using EMG-informed neuromusculoskeletal (NMSK) models, we analyzed hip contact forces (HCF) from 20 soldier participants as they carried two different loads and walked at two different speeds. Increases in HCF were observed from both increases in carried load and walking speed, with HCF magnitudes approaching values observed during running. Importantly, muscles accounted for >50% of the total HCF and this contribution remained consistent with increasing task demands. Thus, our results suggest the effectiveness of injury prevention strategies should be analyzed using NMSK modeling approaches that incorporate estimates of muscle forces.

M3 - Abstract

SP - 1047

ER -