football performance 10 soccer 8 athletic performance 6 exercise 6 strength 6 health 5 athletes 4 biomechanics 4 body composition 4 endurance 4 fatigue 4 physical activity 4 power 4 sport 4 sports training 4 training load 4 velocity 4 women 4 BIA 3 COVID-19 3 GPS 3 Lifestyle, sport & leisure 3 RPE 3 acceleration 3 electromyography 3 executive functions 3 female 3 flexibility 3 heart rate 3