Subjects in one of four calcium subgroups noted a 54 per cent reduction in aches and pains, while the placebo group had a 15 per cent increase.
四个钙服用分组之一的受试者中有54％的人觉得疼痛减弱，而安慰剂服用组则有15％的人觉得疼痛加剧。

The results, disputed by strip manufacturers, show that nasal devices are not better than a placebo in changing oxygen uptake or improving endurance.
研究结果显示，在改善氧气摄入量或者提高运动员的耐力上，鼻管的作用只相当於安慰剂，对此鼻管制造商并不同意。