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Sex differences in oxidative stress after eccentric and concentric exercise.
Redox Report ( IF 3.8 ) Pub Date : 2017-03-20 , DOI: 10.1080/13510002.2017.1304195
Magdalena Wiecek 1 , Marcin Maciejczyk 1 , Jadwiga Szymura 2 , Zbigniew Szygula 3
Affiliation  

Objectives: Comparison of redox balance changes in the blood of women and men as a result of submaximal eccentric (ECC) and concentric (CONC) efforts.

Methods: 10 women and 10 men performed three 45-minute submaximal treadmill runs at constant velocities (downhill run – ECC, uphill run – CONC and level run). Prior to the 45-minute exercises, after their completion and following 24 hours of recovery, the concentration of lactate, oxidized low-density lipoprotein (ox-LDL), 3-nitrotyrosine, uric acid (UA) and the white blood cell count (WBC), neutrophil (NEUT), lymphocyte (LYMPH) and monocyte content in the blood were determined.

Results: In women, the ox-LDL increased significantly 10 minutes and 24 hours following ECC (P < 0.05). 10 minutes after ECC, in women, there was an increase in WBC, NEUT and LYMPH (P < 0.05). In the men, WBC and NEUT increased significantly 24 hours after CONC and ECC (P < 0.05). UA in each determination was higher in the men than the women (P < 0.05).

Discussion: ECC cause impaired redox balance only in women. Due to the increase in antioxidant capacity of the blood without accompanying oxidative damage to macromolecules, for both sexes, it is recommended to perform concentric running efforts at the highest possible subliminal intensity.



中文翻译:

离心和向心运动后氧化应激的性别差异。

目的:比较由于次最大离心 (ECC) 和同心 (CONC) 努力导致的女性和男性血液中氧化还原平衡的变化。

方法:10 名女性和 10 名男性以恒定速度(下坡跑 - ECC、上坡跑 - CONC 和水平跑)进行了 3 次 45 分钟的次最大跑步机跑步。在 45 分钟锻炼前、完成后和恢复 24 小时后,乳酸浓度、氧化低密度脂蛋白 (ox-LDL)、3-硝基酪氨酸、尿酸 (UA) 和白细胞计数 (测定了血液中的 WBC)、中性粒细胞 (NEUT)、淋巴细胞 (LYMPH) 和单核细胞的含量。

结果:女性ECC后10分钟和24小时ox-LDL显着升高(P  <0.05)。ECC 后 10 分钟,女性 WBC、NEUT 和 LYMPH 增加(P  < 0.05)。在男性中,CONC 和 ECC 后 24 小时 WBC 和 NEUT 显着增加(P  < 0.05)。UA在各项测定中男性高于女性(P  < 0.05)。

讨论:ECC 仅在女性中导致氧化还原平衡受损。由于血液的抗氧化能力增加,而不会伴随对大分子的氧化损伤,因此无论男女,建议以尽可能高的潜意识强度进行同心跑步。

更新日期:2017-03-20
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