Excluding these effects, sales were down modestly in the quarter, and more importantly, profitability significantly improved, with gross margin increasing 1.5 percentage points, driven by new product launches. For example, in fitness training, our Delta apparel and CrossFit ranges continue to do very well, growing 13% in the quarter. In Classics, we saw big acceleration in momentum, with particularly strong sellthroughs from new silhouettes in retro basketball, driving sales up 33%..Unfortunately, there has been a longtime common assumption in the athletic community that 'having one's bell rung' represents a rapidly resolving injury. This study further challenges that assumption as well as the current grading scale guideline, and clearly demonstrates that even seemingly mild concussions whose symptoms disappear within 15 minutes should be treated as a serious injury and the athletes should not be allowed to return to play in that particular game or practice session," said Dr.