Chen Chung-Yu, Liao Yi-Hung, Chou Chun-Chung, Sung Yu-Chi, Tsai Shiow-Chwen
Department of Exercise and Health Sciences, University of Taipei, Taipei City, Taiwan.
Department of Exercise and Health Science, National Taipei University of Nursing and Health Sciences, Taipei City, Taiwan.
PLoS One. 2017 Apr 19;12(4):e0176140. doi: 10.1371/journal.pone.0176140. eCollection 2017.
This study examined ten-week TKD-specific training effects on aerobic capacity, body composition, hormone responses and hematological parameters in elite TKD athletes with varied initial inflammatory states.
Twenty-two elite college TKD athletes were divided into two groups according to their initial neutrophils-to-lymphocytes ratio (NLR) values: Low NLR (N = 11, 9M/2F, age: 21.6 ± 1.0 yrs; NLR: 1.3 ± 0.2) and High NLR (N = 11, 8M/3F, age: 22.0 ± 0.7 yrs, NLR: 2.5 ± 1.3), and participated in a 10-week TKD-specific training program. Aerobic capacity, body composition, hormonal responses and hematological parameters were measured at baseline and 10-weeks after TKD training.
VO2max and shuttle run distance were significantly increased in both groups after training. However, the degree of improvement was greater in the Low NLR group than in the High NLR group. After 10-weeks of exercise training, the High NLR group presented markedly higher fat mass percentage and visceral fat area and significantly lowers DHEA-S to cortisol ratio (D/C ratio) than the Low NRL group. The post-training NLR was negatively correlated with the D/C ratio. Neutrophil counts and NLR were still significantly higher in the High NLR group after training.
This study provides new evidence that young elite TKD athletes with slightly high baseline systemic inflammatory state appear to perturb adaptations to exercise training.
本研究考察了为期十周的跆拳道专项训练对不同初始炎症状态的精英跆拳道运动员有氧能力、身体成分、激素反应和血液学参数的影响。
22名精英高校跆拳道运动员根据其初始中性粒细胞与淋巴细胞比值(NLR)分为两组:低NLR组(N = 11,9名男性/2名女性,年龄:21.6 ± 1.0岁;NLR:1.3 ± 0.2)和高NLR组(N = 11,8名男性/3名女性,年龄:22.0 ± 0.7岁,NLR:2.5 ± 1.3),并参加了为期10周的跆拳道专项训练计划。在基线和跆拳道训练10周后测量有氧能力、身体成分、激素反应和血液学参数。
两组训练后最大摄氧量和穿梭跑距离均显著增加。然而,低NLR组的改善程度高于高NLR组。经过10周的运动训练后,高NLR组的脂肪质量百分比和内脏脂肪面积明显高于低NRL组,而脱氢表雄酮硫酸盐与皮质醇比值(D/C比值)则显著低于低NRL组。训练后的NLR与D/C比值呈负相关。训练后高NLR组的中性粒细胞计数和NLR仍显著较高。
本研究提供了新的证据,表明基线全身炎症状态略高的年轻精英跆拳道运动员似乎会干扰对运动训练的适应。