International Journal of Human Movement and Sports Sciences Vol. 8(2), pp. 51 - 56
DOI: 10.13189/saj.2020.080201
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Effects of Breast Motion on Lower-Body Kinematics during Running


Gibson Taylor M. 1, Langenderfer Joseph E. 2, Ustinova Ksenia I. 1,*
1 Doctoral Program in Physical Therapy, Central Michigan University, United States
2 School of Engineering and Technology, Central Michigan University, United States

ABSTRACT

We measured the effects of breast motion on lower-body kinematics during overground running. Thirty female participants aged 18–60 years completed two blocks of three trials each of overground running for 25 m at self-selected pace under two conditions: with and without breast support provided by a sports bra. Participants' body movements were analyzed with 18 parameters characterizing breast and lower-body kinematics. Sports bra use reduced breast motion and increased about 83% of the lower-body kinematic parameters, including running velocity; stride length; foot clearance; vertical and lateral center of mass displacement; and thorax, hip, knee, and ankle range of motion (all p < 0.05). Among the changed characteristics, the stride length, center of mass displacements, thorax and knee range of motions correlated negatively (r = –0.25 to –0.46) with the velocity of breast motion. Therefore, the reduction of breast motion may improve lower-body kinematics during running, which may influence sport and leisure performance.

KEYWORDS
Sports Bra, Sport Exercise, Gait

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Gibson Taylor M. , Langenderfer Joseph E. , Ustinova Ksenia I. , "Effects of Breast Motion on Lower-Body Kinematics during Running," International Journal of Human Movement and Sports Sciences, Vol. 8, No. 2, pp. 51 - 56, 2020. DOI: 10.13189/saj.2020.080201.

(b). APA Format:
Gibson Taylor M. , Langenderfer Joseph E. , Ustinova Ksenia I. (2020). Effects of Breast Motion on Lower-Body Kinematics during Running. International Journal of Human Movement and Sports Sciences, 8(2), 51 - 56. DOI: 10.13189/saj.2020.080201.