Nimmerichter Alfred, Holdhaus Johann, Mehnen Lars, Vidotto Claudia, Loidl Markus, Barker Alan R
Institute for Sports Medicine and Science, Olympic Center, IMSB Austria, Johann Steinboeck Str. 5, 2344, Maria Enzersdorf, Austria,
Int J Biometeorol. 2014 Sep;58(7):1503-12. doi: 10.1007/s00484-013-0754-8. Epub 2013 Oct 23.
Limited research has suggested that acute exposure to negatively charged ions may enhance cardio-respiratory function, aerobic metabolism and recovery following exercise. To test the physiological effects of negatively charged air ions, 14 trained males (age: 32 ± 7 years; VO2max: 57 ± 7 mL min(-1) kg(-1)) were exposed for 20 min to either a high-concentration of air ions (ION: 220 ± 30 × 10(3) ions cm(-3)) or normal room conditions (PLA: 0.1 ± 0.06 × 10(3) ions cm(-3)) in an ionization chamber in a double-blinded, randomized order, prior to performing: (1) a bout of severe-intensity cycling exercise for determining the time constant of the phase II VO2 response (τ) and the magnitude of the VO2 slow component (SC); and (2) a 30-s Wingate test that was preceded by three 30-s Wingate tests to measure plasma [adrenaline] (ADR), [nor-adrenaline] (N-ADR) and blood [lactate] (B(Lac)) over 20 min during recovery in the ionization chamber. There was no difference between ION and PLA for the phase II VO2 τ (32 ± 14 s vs. 32 ± 14 s; P = 0.7) or VO2 SC (404 ± 214 mL vs 482 ± 217 mL; P = 0.17). No differences between ION and PLA were observed at any time-point for ADR, N-ADR and B(Lac) as well as on peak and mean power output during the Wingate tests (all P > 0.05). A high-concentration of negatively charged air ions had no effect on aerobic metabolism during severe-intensity exercise or on performance or the recovery of the adrenergic and metabolic responses after repeated-sprint exercise in trained athletes.
有限的研究表明，急性暴露于带负电荷的离子可能会增强心肺功能、有氧代谢以及运动后的恢复能力。为了测试带负电荷的空气离子的生理效应，14名受过训练的男性（年龄：32±7岁；最大摄氧量：57±7 mL·min⁻¹·kg⁻¹）在双盲、随机顺序下，于电离室内暴露20分钟，分别处于高浓度空气离子环境（ION：220±30×10³个离子·cm⁻³）或正常室内环境（PLA：0.1±0.06×10³个离子·cm⁻³），然后进行：（1）一轮高强度自行车运动，以确定第二阶段摄氧量反应的时间常数（τ）和摄氧量慢成分（SC）的大小；（2）一项30秒的温盖特测试，在进行该测试前先进行三次30秒的温盖特测试，以测量在电离室内恢复20分钟期间的血浆[肾上腺素]（ADR）、[去甲肾上腺素]（N - ADR）和血液[乳酸]（B（Lac））。ION组和PLA组在第二阶段摄氧量τ（32±14秒对32±14秒；P = 0.7）或摄氧量SC（404±214 mL对482±217 mL；P = 0.17）方面没有差异。在温盖特测试期间，ION组和PLA组在任何时间点的ADR、N - ADR和B（Lac）以及峰值和平均功率输出方面均未观察到差异（所有P>0.05）。高浓度的带负电荷的空气离子对受过训练的运动员在高强度运动期间的有氧代谢、重复冲刺运动后的表现或肾上腺素能和代谢反应的恢复没有影响。
