Unidad de Investigación en Gerontología, Facultad de Estudios Superiores Zaragoza, Universidad Nacional Autónoma de México (UNAM), México, DF, Mexico.
Oxid Med Cell Longev. 2013;2013:298590. doi: 10.1155/2013/298590. Epub 2013 Jul 7.
It has recently been reported that the practice of Tai Chi reduces oxidative stress (OxS), but it is not clear whether walking or Tai Chi produces a greater antioxidant effect. The aim of the present study was to evaluate the effect of the practice of Tai Chi and walking on markers for OxS. We carried out a quasi-experimental study with 106 older adults between 60 and 74 years of age who were clinically healthy and divided into the following groups: (i) control group (n = 23), (ii) walking group (n = 43), and (iii) Tai Chi group (n = 31). We measured the levels of lipoperoxides (LPO), antioxidant enzymes superoxide dismutase (SOD) and glutathione peroxidase (GPx), and total antioxidant status (TAS) pre- and post-intervention in all subjects. The data were subjected to a covariant analysis. We found lower levels of LPO in the Tai Chi group compared with the walking group (Tai Chi, 0.261 ± 0.02; walking, 0.331 ± 0.02; control, 0.304 ± 0.023 µmol/L; P = 0.05). Likewise, we observed significantly higher SOD activity and lower OxS-score in the Tai Chi group (P < 0.05). Our findings suggest that the practice of Tai Chi produces a more effective antioxidant effect than walking.
最近有报道称，练习太极拳可以降低氧化应激（OxS），但目前尚不清楚散步或太极拳哪种运动方式产生的抗氧化效果更大。本研究旨在评估练习太极拳和散步对 OxS 标志物的影响。我们进行了一项准实验研究，纳入了 106 名年龄在 60-74 岁之间的临床健康的老年人，将他们分为以下三组：（i）对照组（n=23）、（ii）散步组（n=43）和（iii）太极拳组（n=31）。我们在所有受试者干预前后测量了脂质过氧化物（LPO）、抗氧化酶超氧化物歧化酶（SOD）和谷胱甘肽过氧化物酶（GPx）以及总抗氧化状态（TAS）的水平。对数据进行协方差分析。我们发现与散步组相比，太极拳组的 LPO 水平较低（太极拳组 0.261±0.02；散步组 0.331±0.02；对照组 0.304±0.023µmol/L；P=0.05）。同样，我们观察到太极拳组的 SOD 活性显著升高，OxS 评分较低（P<0.05）。我们的研究结果表明，与散步相比，练习太极拳产生的抗氧化效果更显著。
