French Contrast Versus Oregon Circuit Training in Competitive Football Players

Inclusion Criteria: * Age 16 to 25 years. * Active competitive or professional football player. * At least 2 years of consistent strength-training experience. * No lower-limb injury during the previous 3 months. * Willing and able to participate in the training and assessment schedule. * Written informed consent; parental or guardian consent for participants under 18 years, as applicable. Exclusion Criteria: * Current or recent physical injury or musculoskeletal problem that limits safe participation. * Health problem or medical restriction that prevents participation in exercise training. * Outside the eligible age range. * Unwilling to participate or, for minors, absence of required parental or guardian consent.