Experimental design
fatigue
Based on previous testing periods of animal and human B-vitamin supplementation, a duration of 28 consecutive days was chosen as the supplementation period Before each phase of intervention, we measured the subjects' body composition, common blood biochemical parameters, and exercise tolerance. After consecutive 28 days of supplementation, we re-measured the subjects' exercise fatigue biochemical values, exercise endurance performance, and body composition. In addition, we asked all subjects to record their diet before and after the intervention, and a professional nutritionist analyzed the daily nutrient intake to ensure that the relevant sports performance was not affected by diet (