Academic Journal of Health Sciences
Resting immuno-hematological profiles associated with regular futsal training in adolescent futsal players: an exploratory ABO-stratified cross-sectional study
Objectives: This exploratory cross-sectional study assessed resting immuno-hematological profiles in 13–14-year-old boys engaged in regular futsal training and compared these profiles across ABO blood groups. Methods: The sample included 96 clinically healthy boys: 48 futsal players and 48 age- and ABO-frequency-matched controls without systematic sports training. The ABO distribution was identical in the futsal and control groups. Morning fasting capillary blood samples were collected during the intertraining peri …