Selected Sports Bras: A Biomechanical Analysis of Breast Motion While Jogging.

In brief: Eight sports bras were compared and evaluated to determine the amount of biomechanical support they provide for small-, medium-, and large-breasted women. Fifty-nine subjects were filmed as they jogged on a treadmill at 6 mph in each of the bras and nude from the waist up. The subjects were divided into cup-size groups A, B, C, and D. The mean vertical displacement of the breast relative to the body during one average running stride was calculated (in cm) for each condition. Results showed that the Exercise Sports Top and the Lady Duke bras allowed the least amount of breast movement. The authors list various design features of the bras studied and offer recommendations for active women in selecting a style appropriate for their breast size.