Shahid Beheshti University of Medical Sciences The Scientific Journal of Rehabilitation Medicine 2251-8401 8 3 2019 09 23 Effect of Corrective Exercises Program on Strength، ROM, and Performance in Basketball Players with Dynamic Knee Valgus Effect of Corrective Exercises Program on Strength، ROM, and Performance in Basketball Players with Dynamic Knee Valgus 29 41 1100621 10.22037/jrm.2019.111286.1887 FA Hemn Mohammadi Assistant Professor, Department of Physical Education and Sports Sciences, Faculty of Humanity Sciences, University of Kurdistan, Sanandaj, Iran 0000-0002-8225-4463 Hassan Daneshmandi Professor, Department of Sport Injury and Corrective Exercise, Faculty of Physical Education and Sports Sciences, University of Guilan, Rasht, Iran 0000-0002-4161-6093 Mohammadhosein Alizadeh Professor, Department of Sport Injury and Corrective Exercise, Faculty of Physical Education and Sports Sciences, University of Tehran, Tehran, Iran 0000-0003-1507-6502 Journal Article 2018 07 13 <strong>Background and Aims: </strong>The most common mechanism of anterior cruciate ligament injury in basketball is non-contact and dynamic knee valgus is the key risk factor of these injuries. The purpose of the present study was to investigate the effect of corrective exercise program on strength, ROM, and performance in basketball players with dynamic knee valgus. <br /><strong>Materials and Methods:</strong> A total of 32 basketball players (age: 20.8± 1.7 years, weight :74.0± 5.2 kg, height: 183.9± 5.0 cm) with dynamic knee valgus participated in the current study and were randomly divided into two groups of exercise (n=16) and control (n=16). Assessment included ROM (dorsiflexion, abduction, and external rotation of the hip), strength (dorsiflexion, plantar flexion, abduction, and external rotation of the hip), and performance (balance and hop test) in dominant leg. <br /><strong>Results:</strong> Data analysis via ANCOVA showed that the exercise groups experienced significant reduction (P<0/01) in dynamic knee valgus (6/51 degree) during drop-jump task, significant improvement (P<0/01) in ROM (3/43 degree dorsiflexion with the knee flexion, 2/25 degree dorsiflexion with the knee extension, 2/38 degree abduction, and 1/75 degree external rotation of the hip), strength (2/32 kg dorsiflexion, 4/87 kg plantarflexion, 1/82 kg abduction and 1/58 kg external rotation of the hip), balance (3/33 cm), and hop tests (13/25 cm). <br /><strong>Conclusion:</strong>It can be concluded that participation in this corrective exercises program can lead to significant improvement in  strength and ROM distal and proximal knee joint and performance, and it seems that it can help for prevention of lower extremity injuries caused by dynamic knee valgus during functional activity. <strong>Background and Aims: </strong>The most common mechanism of anterior cruciate ligament injury in basketball is non-contact and dynamic knee valgus is the key risk factor of these injuries. The purpose of the present study was to investigate the effect of corrective exercise program on strength, ROM, and performance in basketball players with dynamic knee valgus. <br /><strong>Materials and Methods:</strong> A total of 32 basketball players (age: 20.8± 1.7 years, weight :74.0± 5.2 kg, height: 183.9± 5.0 cm) with dynamic knee valgus participated in the current study and were randomly divided into two groups of exercise (n=16) and control (n=16). Assessment included ROM (dorsiflexion, abduction, and external rotation of the hip), strength (dorsiflexion, plantar flexion, abduction, and external rotation of the hip), and performance (balance and hop test) in dominant leg. <br /><strong>Results:</strong> Data analysis via ANCOVA showed that the exercise groups experienced significant reduction (P<0/01) in dynamic knee valgus (6/51 degree) during drop-jump task, significant improvement (P<0/01) in ROM (3/43 degree dorsiflexion with the knee flexion, 2/25 degree dorsiflexion with the knee extension, 2/38 degree abduction, and 1/75 degree external rotation of the hip), strength (2/32 kg dorsiflexion, 4/87 kg plantarflexion, 1/82 kg abduction and 1/58 kg external rotation of the hip), balance (3/33 cm), and hop tests (13/25 cm). <br /><strong>Conclusion:</strong>It can be concluded that participation in this corrective exercises program can lead to significant improvement in  strength and ROM distal and proximal knee joint and performance, and it seems that it can help for prevention of lower extremity injuries caused by dynamic knee valgus during functional activity. https://medrehab.sbmu.ac.ir/article_1100621_b6660bd261b03d5b0cd5e4b499653b2b.pdf