<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Asian women have smaller breast sizes and greater breast density, which suggests specific research on their breast kinematics and biomechanics. To investigate vertical breast displacement of Asian women among exercise modalities (rope skipping, walking, jogging, running) in different support conditions (wearing everyday bra or sports bra), and assess the motion between different parts of the breast, seven participants were selected to participate in this study. Five infrared markers were placed on each of their left breasts, and a three-dimensional motion capture system (NDI Optotrak Investigator) was used to collect the data on vertical breast displacement during walking (5 km/h), jogging (7.5 km/h), running (10 km/h) and rope skipping (2 Hz). No significant difference was found in the vertical displacement of different parts of the breast in the two bra conditions. Also, there was significant difference in vertical breast displacement among rope skipping, jogging and running. Breast size did not significantly affect its vertical displacement. The smaller, denser breast appears to reach a threshold of vertical displacement that is similar at high severities of dynamic exercises (jogging, running and rope skipping). The results might be useful for designing special sports bras for Asian women with small breasts or rope skipping participants to improve the shock absorption function.</p>
</abstract>

Asian women have smaller breast sizes and greater breast density, which suggests specific research on their breast kinematics and biomechanics. To investigate vertical breast displacement of Asian women among exercise modalities (rope skipping, walking, jogging, running) in different support conditions (wearing everyday bra or sports bra), and assess the motion between different parts of the breast, seven participants were selected to participate in this study. Five infrared markers were placed on each of their left breasts, and a three-dimensional motion capture system (NDI Optotrak Investigator) was used to collect the data on vertical breast displacement during walking (5 km/h), jogging (7.5 km/h), running (10 km/h) and rope skipping (2 Hz). No significant difference was found in the vertical displacement of different parts of the breast in the two bra conditions. Also, there was significant difference in vertical breast displacement among rope skipping, jogging and running. Breast size did not significantly affect its vertical displacement. The smaller, denser breast appears to reach a threshold of vertical displacement that is similar at high severities of dynamic exercises (jogging, running and rope skipping). The results might be useful for designing special sports bras for Asian women with small breasts or rope skipping participants to improve the shock absorption function.

Vertical Breast Displacement in Asian Women During Exercise: influence of Bra Type, Size and Different Parts of the Breast

Shanghai University of Engineering Science

Sino-British Joint Lab for Smart Sportswear

Fibres & Textiles in Eastern Europe

This work is licensed under the Creative Commons Attribution 3.0 Public License.

Asian women have smaller breast sizes and greater breast density, which suggests specific research on their breast kinematics and biomechanics. To investigate...

Participants	Upper-breast circumference/cm	Breast circumference/cm	Under-breast circumference/cm	Band size	Cup size
1	85.0	85.5	75.5	75.0	A
2	84.0	85.0	71.5	70.0	B
3	90.0	90.0	74.0	75.0	C
4	84.5	83.5	72.5	70.0	A
5	90.5	90.0	74.5	75.0	C
6	83.0	84.0	72.0	70.0	B
7	88.0	84.0	70.5	70.0	B

Vertical Breast Displacement in Asian Women During Exercise: influence of Bra Type, Size and Different Parts of the Breast

Article Category: Research Article

Publicado en línea: 12 oct 2022

Páginas: 1 - 8

DOI: https://doi.org/10.2478/ftee-2022-0016

Palabras clave
rope skipping, motion capture, sports bra, breast support, women's health

© 2022 Xinyang Sheng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 3.0 Public License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Participants’ breast measurement data

Vertical Breast Displacement in Asian Women During Exercise: influence of Bra Type, Size and Different Parts of the Breast

Article Category: Research Article

Publicado en línea: 12 oct 2022

Páginas: 1 - 8

DOI: https://doi.org/10.2478/ftee-2022-0016

Palabras claverope skipping, motion capture, sports bra, breast support, women's health

© 2022 Xinyang Sheng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 3.0 Public License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Participants’ breast measurement data

Palabras clave
rope skipping, motion capture, sports bra, breast support, women's health