Changes in lumbar joint moments using a female specific torso and dynamic breast model during running

Chris Mills; Melissa Jones

Changes in lumbar joint moments using a female specific torso and dynamic breast model during running

Chris Mills^*, Melissa Jones

^*Corresponding author for this work

School of Sport, Health & Exercise Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Abstract

This study aimed to investigate the effect of breast mass and motion on lumbar flexor / extensor moments during running. Kinematic and kinetic data were collected for a female participant running at 2.6 m/s. An MRI scan was used to calculate breast mass and centre of mass location. An OpenSim model was customised with two point-mass segments added to the torso to represent the breasts. Three model variations were constructed (combined breast and torso mass; separate breast and torso mass without breast motion; separate breast and torso mass with breast motion). Findings show that neglecting breast motion causes peak lumbar extensor moments to be underestimated by ~3.4%, compared with a combined breast and torso mass model. These results highlight the importance of including breast motion in female specific MSK models, during activities such as running

Original language	English
Title of host publication	ISBS 2022
Subtitle of host publication	Conference Proceedings
Publisher	Northern Michigan University
Number of pages	4
Volume	40
Edition	1
Publication status	Published - 19 Jul 2022
Event	International Society of Biomechanics in Sports - Liverpool John Moores University, Liverpool, United Kingdom Duration: 19 Jul 2022 → 23 Jul 2022 http://www.isbs2022.org/home.html

Publication series

Name	International Symposium on Biomechanics in Sports
Publisher	Northern Michigan University
ISSN (Print)	1999-4168

Conference

Conference	International Society of Biomechanics in Sports
Abbreviated title	ISBS
Country/Territory	United Kingdom
City	Liverpool
Period	19/07/22 → 23/07/22
Internet address	http://www.isbs2022.org/home.html

Keywords

breast
OpenSim
mass
musculoskeletal

Access to Document

ISBS 2022_dynamic breast model_ACCEPTEDAccepted author manuscript (Post-print), 200 KB

https://commons.nmu.edu/isbs/vol40/iss1/111/

Cite this

@inproceedings{eccb2453f9ce4020a3269324882a1685,

title = "Changes in lumbar joint moments using a female specific torso and dynamic breast model during running",

abstract = "This study aimed to investigate the effect of breast mass and motion on lumbar flexor / extensor moments during running. Kinematic and kinetic data were collected for a female participant running at 2.6 m/s. An MRI scan was used to calculate breast mass and centre of mass location. An OpenSim model was customised with two point-mass segments added to the torso to represent the breasts. Three model variations were constructed (combined breast and torso mass; separate breast and torso mass without breast motion; separate breast and torso mass with breast motion). Findings show that neglecting breast motion causes peak lumbar extensor moments to be underestimated by ~3.4%, compared with a combined breast and torso mass model. These results highlight the importance of including breast motion in female specific MSK models, during activities such as running",

keywords = "breast, OpenSim, mass, musculoskeletal",

author = "Chris Mills and Melissa Jones",

year = "2022",

month = jul,

day = "19",

language = "English",

volume = "40",

series = "International Symposium on Biomechanics in Sports",

publisher = "Northern Michigan University",

booktitle = "ISBS 2022",

address = "United States",

edition = "1",

note = "International Society of Biomechanics in Sports, ISBS ; Conference date: 19-07-2022 Through 23-07-2022",

url = "http://www.isbs2022.org/home.html",

}

Mills, C & Jones, M 2022, Changes in lumbar joint moments using a female specific torso and dynamic breast model during running. in ISBS 2022: Conference Proceedings. 1 edn, vol. 40, 111, International Symposium on Biomechanics in Sports, Northern Michigan University, International Society of Biomechanics in Sports, Liverpool, United Kingdom, 19/07/22. <https://commons.nmu.edu/isbs/vol40/iss1/111/>

TY - GEN

T1 - Changes in lumbar joint moments using a female specific torso and dynamic breast model during running

AU - Mills, Chris

AU - Jones, Melissa

PY - 2022/7/19

Y1 - 2022/7/19

N2 - This study aimed to investigate the effect of breast mass and motion on lumbar flexor / extensor moments during running. Kinematic and kinetic data were collected for a female participant running at 2.6 m/s. An MRI scan was used to calculate breast mass and centre of mass location. An OpenSim model was customised with two point-mass segments added to the torso to represent the breasts. Three model variations were constructed (combined breast and torso mass; separate breast and torso mass without breast motion; separate breast and torso mass with breast motion). Findings show that neglecting breast motion causes peak lumbar extensor moments to be underestimated by ~3.4%, compared with a combined breast and torso mass model. These results highlight the importance of including breast motion in female specific MSK models, during activities such as running

AB - This study aimed to investigate the effect of breast mass and motion on lumbar flexor / extensor moments during running. Kinematic and kinetic data were collected for a female participant running at 2.6 m/s. An MRI scan was used to calculate breast mass and centre of mass location. An OpenSim model was customised with two point-mass segments added to the torso to represent the breasts. Three model variations were constructed (combined breast and torso mass; separate breast and torso mass without breast motion; separate breast and torso mass with breast motion). Findings show that neglecting breast motion causes peak lumbar extensor moments to be underestimated by ~3.4%, compared with a combined breast and torso mass model. These results highlight the importance of including breast motion in female specific MSK models, during activities such as running

KW - breast

KW - OpenSim

KW - mass

KW - musculoskeletal

UR - https://commons.nmu.edu/isbs/

UR - http://www.isbs2022.org/

UR - https://commons.nmu.edu/isbs/policies.html

M3 - Conference contribution

VL - 40

T3 - International Symposium on Biomechanics in Sports

BT - ISBS 2022

PB - Northern Michigan University

T2 - International Society of Biomechanics in Sports

Y2 - 19 July 2022 through 23 July 2022

ER -

Changes in lumbar joint moments using a female specific torso and dynamic breast model during running

Abstract

Publication series

Conference

Keywords

Access to Document

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Cite this