Sports bra but not sports footwear decreases breast movement during walking and running

Running is a modality that has a large number of adepts, including women. Therefore, it is important to understand how sportswear can help women, with special attention to the breast movement. The aim of this study was to analyse the effect of different combinations of breast support and footwear on...

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Bibliographic Details
Published in:Journal of biomechanics 2020-10, Vol.111, p.110014-110014, Article 110014
Main Authors: Leme, Juliane Cristina, Banks, Luiza dos Santos, Reis, Yasmim Barbosa dos, Cardoso, Jefferson Rosa, Campos, Mario Hebling, Santiago, Paulo Roberto Pereira, Moura, Felipe Arruda
Format: Article
Language:English
Subjects:
Biomechanical Phenomena
Breast
Breast kinematics
Breasts
Displacement
Exercise
Exercise Test
Female
Fitness equipment
Footwear
Humans
Injuries
Kinematics
Movement
Physical fitness
Running
Shoes
Sports
Sportswear
Treadmills
Underwear
Velocity
Walking
Women exercise
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Summary:Running is a modality that has a large number of adepts, including women. Therefore, it is important to understand how sportswear can help women, with special attention to the breast movement. The aim of this study was to analyse the effect of different combinations of breast support and footwear on the breast movement during walking and running. Twenty women performed treadmill walking (5 km/h) and running (7 and 10 km/h) combining different footwear (barefoot, minimalist, and traditional) and breast support conditions (bare breast, everyday bra, and sports bra). Three-dimensional data from breast and trunk markers were tracked for 10 stride cycles. Relative breast displacement was calculated and derived for velocity. An interaction effect was observed between support, footwear, and speed conditions. The bare breast conditions presented differences from the other conditions in the majority of the kinematic variables, presenting higher breast displacement and velocity values. On the other hand, the sports bra conditions presented the lowest values for the kinematics variables. In the vertical component of breast displacement during running (10 km/h) we verified that the sports bra presented reductions of 56% and 43% in relation to the bare breast and everyday bra conditions, respectively. Despite this, no differences were found between footwear within each breast support condition. A sports bra is efficient to decrease breast movement. In addition, neither of the tested footwear was able to decrease these movements.
ISSN:0021-9290
1873-2380
DOI:10.1016/j.jbiomech.2020.110014