Breast support implications for female recreational athletes during steady-state running

The aim of this study was to investigate the effect of high (HS) and low (LS) breast support on running kinematics and breast comfort during steady-state running. Eleven larger-breasted female recreational athletes completed a short duration treadmill run (2.58 m/s) in a LS and HS condition. Multi-planar breast and running kinematics were analysed; breast comfort was rated at the end of each treadmill run. The HS condition significantly reduced breast kinematics and increased breast comfort. Differences in lower-extremity mechanics were found between breast support conditions; results suggest performance may be compromised if high breast support is not worn. Individual running mechanics were also found to influence breast kinematics, highlighting that some runners may need custom-made breast support.