Effects of Six-Week Accentuated Eccentric Load Training on Balance and Strength in Young Football Players

This study is designed as an experimental intervention study to evaluate the effects of a structured training program on physical performance parameters in athletes. The intervention will be implemented over a defined training period, during which participants will follow a standardized exercise protocol supervised by qualified trainers or researchers.

Baseline measurements will be collected prior to the intervention, including relevant performance tests such as balance, strength, sprint speed, change of direction ability, and jump performance, depending on the study design. After completion of the intervention period, post-intervention assessments will be conducted using the same testing procedures.

All testing sessions will be performed under standardized environmental conditions, including consistent testing time, equipment, and procedures. The study will follow ethical principles for human participant research, and informed consent will be obtained from all participants prior to participation.

Inclusion criteria

• Healthy athletes aged 18 years or older
• Regular participation in sports training
• Ability to perform resistance and balance exercises safely
• Voluntary participation with signed informed consent
• No musculoskeletal injury within the last 6 months

Exclusion criteria

• Current injury or pain affecting participation in training or testing
• History of neurological, cardiovascular, or severe musculoskeletal disorders
• Participation in another structured training or rehabilitation program during the study period
• Use of medication or medical condition that could affect physical performance
• Failure to complete the training intervention or testing procedures