302 Youth volleyball, basketball and futsal athletes performance on Y-Test over the sports season

Analysis and Research on Fitness Biomarkers in Volleyball Athletes During Competition

“…Athlete A's red blood cell value dropped from 5.03×1012/L to 4.19×1012/L after the summer training, the hemoglobin value dropped from 139.00g/L to 122.00g/L, and the downward trend was obvious, the hematocrit value increased from 0.30 to 0.38, based on the analysis of these three indicators, A after summer training, the oxygen-carrying capacity of the body's blood decreases, and the body's function not only does not improve, but declines, it shows that the training intensity of summer training is not suitable for A, for A, the training intensity should be reduced, and the recovery and adjustment after training should be done well. 8 Athlete B's red blood cell value increased from 4.28×1012/L to 4.69×1012/L after the summer training, the hematocrit value increased from 122.00g/L to 134.00g/L, and the hemoglobin value increased from 0.37 to 0.41, indicating that Athlete B' s oxygen-carrying capacity improved after the summer training, compared with before the summer training, the physical function has been greatly improved.…”