The Effect of Pressure Training Combined with Resistance Training on the Physical Function of Adolescent Football Players

This study investigated the effects of 12-week blood flow restriction training (BFRT) combined with moderate-intensity resistance training on muscle function and cardiovascular health in elite male football players. Twenty-two athletes (aged 14.67 ± 1.46 years) were evaluated for lower limb muscle strength, vertical jump performance, rapid sprint capacity, isokinetic muscle strength, and serum nitric oxide (NO) levels before and after the intervention. Key findings included: 1) Both groups demonstrated significant increases in bilateral knee joint extension and flexion peak torque (p < 0.01), with the experimental group (BFRT + moderate training) showing superior improvements compared to the control group (traditional high-intensity training) (p < 0.05); 2) Countermovement jump (CMJ) and squat jump (SJ) performance improved significantly more in the experimental group (p < 0.01); 3). The experimental group exhibited substantially greater elevations in serum nitric oxide levels versus controls (p = 0.001 and p = 0.039 at different measurement points), with post-intervention NO levels remaining significantly higher in the experimental group (P = 0.019). These results indicate that combining BFRT with moderate-intensity resistance training for 12 weeks enhances lower limb muscle function in elite football players more effectively than conventional high-intensity training while concurrently improving cardiovascular health markers.