Nolte Kim, Burgoyne Sasha, Nolte Heinrich, VAN DER Meulen Julia, Fletcher Lizelle
Division of Biokinetics and Sport Science, Department of Physiology, University of Pretoria, Pretoria, South Africa -
J Sports Med Phys Fitness. 2016 Nov;56(11):1311-1317. Epub 2016 Jan 14.
The primary aim of the study was to investigate the effectiveness of a range of sports bras in reducing multi-planar breast displacement during treadmill running and a two-step star jump. A secondary aim was to assess the relationship between perceptual bra comfort, bra fit and breast pain and measured breast displacement.
Seventeen females (mean age 22 years, range 18-31 years) with bra cup sizes B to C volunteered to take part in the study. Three dimensional breast movements were determined for six randomly assigned breast support levels during treadmill running and two-step star jumping. Participants completed a perceptual questionnaire rating bra comfort, bra fit and breast pain.
Not all the bras significantly reduced resultant breast movement compared to a control condition. Not all the bras reduced resultant breast movement significantly at all speeds during the treadmill test. A different bra performed best during each of the treadmill running speeds. Perceptual ratings of bra fit and bra comfort were stronger and more reliable predictors of breast pain than breast displacement in our group of relatively small-breasted participants.
Therefore it is apparent that resultant breast movement and the reduction of such movement is a multifaceted function of breast size, bra design and movement/activity type. The variance in bra performance at different treadmill running speeds highlights this fact and indicates that sports bras should be carefully selected to best suit the activity and breast size of the user.
本研究的主要目的是调查一系列运动胸罩在减少跑步机跑步和两级开合跳过程中多平面乳房位移方面的有效性。次要目的是评估感知到的胸罩舒适度、胸罩贴合度与乳房疼痛以及测量的乳房位移之间的关系。
17名胸罩罩杯尺寸为B到C的女性（平均年龄22岁，范围18 - 31岁）自愿参与本研究。在跑步机跑步和两级开合跳过程中，针对六种随机分配的乳房支撑水平测定三维乳房运动。参与者完成一份关于胸罩舒适度、胸罩贴合度和乳房疼痛的感知问卷。
与对照情况相比，并非所有胸罩都能显著减少乳房的总体运动。在跑步机测试的所有速度下，并非所有胸罩都能显著减少乳房的总体运动。在跑步机的每个跑步速度下，表现最佳的胸罩都不同。在我们这组乳房相对较小的参与者中，胸罩贴合度和胸罩舒适度的感知评分比乳房位移更能有力且可靠地预测乳房疼痛。
因此，显然乳房的总体运动以及这种运动的减少是乳房大小、胸罩设计和运动/活动类型的多方面函数。不同跑步机跑步速度下胸罩性能的差异凸显了这一事实，并表明应仔细选择运动胸罩，以最适合使用者的活动和乳房大小。
