Background: Measurement of haematological parameters has been historically helpful in the diagnosis of many diseases in endurance sportsmen. The modifications of these parameters during endurance race have not yet bee...Background: Measurement of haematological parameters has been historically helpful in the diagnosis of many diseases in endurance sportsmen. The modifications of these parameters during endurance race have not yet been evaluated in many African countries. Objectives: To determine haematological values before and immediately after a half-marathon event, as well as within 24 hours after the race and to analyze the changes observed. Methods: A cross-sectional study was conducted from 10 to 21 August 2018 at Brazzaville, Congo. All measurements were confined to 76 male participants (39 specialists vs 37 no specialists of endurance race) in the Brazzaville half-marathon (21.1 km), aged between 19 - 39 years (mean age: 26.7 ± 2.6 years). Coulter profiles with differential white cell counts and haptoglobin levels were determined in venous sample before and after competitive half-marathon race. The same measurements were performed during the 24 hrs following the competition. Results: In the pre-race sample, mild anemia was detected in 12 subjects and mild thrombocytopenia in 7 subjects. Haptoglobin levels were reduced in 5 subjects. Haematological values, all post-race, varied significantly before and after race, particularly for RBC, Hb, Hct, PLT, MCV, MCH, MCHC, WBC, neutrophil counts, lymphocyte counts, monocyte counts, basophil counts, eosinophil counts and haptoglobin. These differences between specialists and no specialists were statistically (p Conclusion: Our data may help sport physicians, sport physiologists and trainers to better follow-up haematological reactions associated with the half-marathon race.展开更多
分析针灸对长时间运动训练的中长跑运动员(青少年运动员)半程马拉松比赛后淋巴细胞及亚群等的影响。结果显示:赛后4 h CD3+、CD4+、CD8+均比不训练时显著下降,赛后28 h基本恢复至不训练时水平,经针灸干预的CD3+、CD4+、CD8+略有增高,但...分析针灸对长时间运动训练的中长跑运动员(青少年运动员)半程马拉松比赛后淋巴细胞及亚群等的影响。结果显示:赛后4 h CD3+、CD4+、CD8+均比不训练时显著下降,赛后28 h基本恢复至不训练时水平,经针灸干预的CD3+、CD4+、CD8+略有增高,但变化无显著性差异;赛后4 h、28 h NK细胞数量呈逐渐下降,与不训练时无显著性差异,赛后28 h经针灸干预的NK细胞数量下降较未经针灸干预的少得多;赛后4 h、28 hNKT细胞数量与不训练时相比明显减少,差异显著,赛后28 h较赛后4 h少量增加,经针灸干预的增加多,有显著差异。提示:免疫系统在强烈或耐力跑后可出现短暂压抑,针灸在一定程度上可对免疫系统产生明显的调节作用。展开更多
文摘Background: Measurement of haematological parameters has been historically helpful in the diagnosis of many diseases in endurance sportsmen. The modifications of these parameters during endurance race have not yet been evaluated in many African countries. Objectives: To determine haematological values before and immediately after a half-marathon event, as well as within 24 hours after the race and to analyze the changes observed. Methods: A cross-sectional study was conducted from 10 to 21 August 2018 at Brazzaville, Congo. All measurements were confined to 76 male participants (39 specialists vs 37 no specialists of endurance race) in the Brazzaville half-marathon (21.1 km), aged between 19 - 39 years (mean age: 26.7 ± 2.6 years). Coulter profiles with differential white cell counts and haptoglobin levels were determined in venous sample before and after competitive half-marathon race. The same measurements were performed during the 24 hrs following the competition. Results: In the pre-race sample, mild anemia was detected in 12 subjects and mild thrombocytopenia in 7 subjects. Haptoglobin levels were reduced in 5 subjects. Haematological values, all post-race, varied significantly before and after race, particularly for RBC, Hb, Hct, PLT, MCV, MCH, MCHC, WBC, neutrophil counts, lymphocyte counts, monocyte counts, basophil counts, eosinophil counts and haptoglobin. These differences between specialists and no specialists were statistically (p Conclusion: Our data may help sport physicians, sport physiologists and trainers to better follow-up haematological reactions associated with the half-marathon race.
