Department of Health Science and Technology, Aalborg Universitet, Aalborg East, Denmark.
Department of Health Science and Technology, Aalborg Universitet, Aalborg, Denmark.
Int J Sports Med. 2022 Aug;43(9):804-810. doi: 10.1055/a-1776-7986. Epub 2022 May 6.
This study compared metabolic power (MP) and time trial (TT) running performance between Adidas Adizero Adios (AAA) and Nike VaporFly 4% (NVP). Thirty-seven runners completed three laboratory sessions and two field sessions (n=30). After familiarization (visit 1), participants completed eight 6-min treadmill running bouts (four with each shoe, counterbalanced) at their preferred pace, and MP was assessed using indirect calorimetry (visits 2 and 3). During visits 4 and 5, participants completed two outdoor TTs (~3.5 km) in NVP and AAA (counterbalanced). Compared with AAA, NVP exhibited superior MP (NVP: median=13.88 (Q1-Q3=12.90-15.08 W/kg; AAA: median=14.08 (Q1-Q3=13.12-15.44 W/kg; z=-4.81, p<.001, effect size=.56) and TT (NVP=793±98 s; AAA=802±100 s, p=.001; effect size=.09). However, there was no relationship between changes in MP and changes in TT between shoes (r=.151 p=.425, 95% confidence interval=[-.22; .48]). Our results demonstrate that NVP, compared with AAA, improves MP and TT in recreational runners. The lack of correlation between changes in MP and TT indicates that factors other than improved MP contribute to faster short-distance TT with NVP.
本研究比较了阿迪达斯 Adizero Adios（AAA）和耐克 VaporFly 4%（NVP）在代谢功率（MP）和计时赛（TT）跑步表现方面的差异。37 名跑步者完成了三次实验室测试和两次现场测试（n=30）。在熟悉阶段（访问 1）后，参与者在他们喜欢的速度下完成了 8 次 6 分钟的跑步机跑步回合（每种鞋各 4 次，平衡），并使用间接测热法评估 MP（访问 2 和 3）。在访问 4 和 5 中，参与者在 NVP 和 AAA 中完成了两次户外 TT（~3.5 公里）（平衡）。与 AAA 相比，NVP 表现出更高的 MP（NVP：中位数=13.88（Q1-Q3=12.90-15.08 W/kg；AAA：中位数=14.08（Q1-Q3=13.12-15.44 W/kg；z=-4.81，p<.001，效应量=.56）和 TT（NVP=793±98 s；AAA=802±100 s，p=.001；效应量=.09）。然而，鞋子之间 MP 和 TT 的变化之间没有关系（r=.151 p=.425，95%置信区间=[-.22；.48]）。我们的结果表明，与 AAA 相比，NVP 提高了休闲跑者的 MP 和 TT。MP 和 TT 变化之间缺乏相关性表明，除了 MP 改善之外，其他因素也有助于 NVP 更快地完成短距离 TT。
