Knee Valgus Angle During Landing Tasks in Female Volleyball and Basketball Players

2011 ◽  
Vol 25 (1) ◽  
pp. 262-266 ◽  
Author(s):  
Lee Herrington
Keyword(s):  
Knee Valgus ◽  
Basketball Players ◽  
Valgus Angle

scholarly journals Effect of Six Weeks of Progressive Jump-Landing Training on Jump Shooting Accuracy and Knee Valgus Angle in Male Basketball Players with Dynamic Knee Valgus

2021 ◽  
Vol 7 (2) ◽  
pp. 148-163
Author(s):  
Saeed Ghobadi Nezha ◽  
◽  
Seyyed Hosein Hoseini ◽  
Ali Asghar Norasteh ◽  
◽  
...  
Keyword(s):  
Evaluation Method ◽  
Knee Injuries ◽  
Training Group ◽  
Study Groups ◽  
Control Group ◽  
Knee Valgus ◽  
Basketball Players ◽  
Jump Landing ◽  
Valgus Angle ◽  
Quasi Experimental

Objective: Dynamic Knee Valgus (DKV) causes many acute and chronic knee injuries during deceleration and landing in sports activities and can affect the athletes’ specific skills. This study aims to investigate the effect of 6 weeks of progressive jump-landing training on jump shooting accuracy and knee valgus angle in male basketball players with DKV. Methods: This is a quasi-experimental study conducted on 24 male basketball players with DKV in Mazandaran, who were selected purposefully. They were randomly divided into training and control groups. Their jump shooting accuracy was assessed by Boddington’s Basketball Jump Shooting Accuracy Test, and their DKV angle was measured by a two-dimensional evaluation method in Quinoa software. In addition to their routine exercises, the training group performed the jump-landing training for 6 weeks at 3 sessions per week, while the control group performed their usual exercises only. In order to compare the two study groups, ANCOVA was used. Results: The progressive jump-landing program had a significant effect on jump shooting accuracy (P=0.001) and DKV angle (P=0.001). Conclusion: Six weeks of progressive jump-landing training can improve the jump shooting accuracy and knee valgus angle in basketball players with DKV. Therefore, jump landing exercises are recommended for improving the jump shooting skill and knee alignment in these athletes.

What is the relationship between the “Fujisawa point” and postoperative knee valgus angle? A theoretical, computer-based study

The Knee ◽  
2020 ◽  
Vol 27 (1) ◽  
pp. 183-191 ◽  
Author(s):  
Yingchao Yin ◽  
Shilun Li ◽  
Ruipeng Zhang ◽  
Jialiang Guo ◽  
Zhiyong Hou ◽  
...  
Keyword(s):  
Knee Valgus ◽  
Theoretical Computer ◽  
Valgus Angle ◽  
Computer Based ◽  
The Relationship ◽  
Postoperative Knee

Predictors Of Knee Valgus Angle During A Jump-landing Task

2005 ◽  
Vol 37 (Supplement) ◽  
pp. S398 ◽  
Author(s):  
Darin A. Padua ◽  
Stephen W. Marshall ◽  
Anthony I. Beutler ◽  
Marlene DeMaio ◽  
Barry P. Boden ◽  
...  
Keyword(s):  
Knee Valgus ◽  
Jump Landing ◽  
Valgus Angle

scholarly journals The Effect of Valgus Control Instruction Exercises on Pain, Strength, and Functionality in Active Females With Patellofemoral Pain Syndrome

2019 ◽  
Vol 11 (3) ◽  
pp. 223-237 ◽  
Author(s):  
Mahsa Emamvirdi ◽  
Amir Letafatkar ◽  
Mehdi Khaleghi Tazji
Keyword(s):  
Injury Prevention ◽  
Pain Syndrome ◽  
Patellofemoral Pain Syndrome ◽  
Patellofemoral Pain ◽  
Knee Valgus ◽  
Valgus Angle ◽  
Significant Difference ◽  
Hop Test ◽  
Control Instruction ◽  
Dynamic Valgus

Background: Patellofemoral pain syndrome (PFPS) is sometimes related to excessive hip adduction and internal rotation, as well as knee valgus during weightbearing activities in females. Research on injury prevention and rehabilitation strategies has shown the positive effects of valgus control instruction (VCI) exercise programs in training. Hypothesis: A VCI program would result in a positive change in pain, eccentric hip muscle torque, and performance in females with PFPS. Study Design: Controlled laboratory study. Level of Evidence: Level 1. Methods: Sixty-four amateur female volleyball players from our university (age, 18-25 years) with PFPS and equal years of exercise experience were randomly divided into VCI (n = 32; age, 22.1 ± 5.88 years) and control (n = 32; age, 23.1 ± 6.49 years) groups. Function (single, triple, and crossover hops), strength (hip abductor and external rotators), pain (visual analog scale), and knee valgus angle (single-leg squat) were assessed at baseline and after intervention. Results: There was a significant difference before and after implementation of the VCI program with regard to pain (49.18% ↓, P = 0.000), single-leg hop test (24.62% ↑, P = 0.000), triple-hop test (23.75% ↑, P = 0.000), crossover hop test (12.88% ↑, P = 0.000), single-leg 6-m timed hop test (7.43% ↓, P = 0.000), knee dynamic valgus angle (59.48% ↓, P = 0.000), peak abductor to adductor eccentric torque ratio (14.60% ↑, P = 0.000), peak external (59.73% ↑, P = 0.023) and internal rotator (15.45% ↑, P = 0.028) eccentric torques, and the ratio of peak external to internal rotator eccentric torque (40.90% ↑, P = 0.000) ( P < 0.05). Conclusion: PFPS rehabilitation and prevention programs should consider VCI exercises to decrease pain, improve strength, and increase athletes’ functional performance. Clinical Relevance: This study investigated the effect of VCI exercises on knee valgus angle, pain, and functionality of individuals with PFPS. The VCI program improves performance, knee dynamic valgus angle, and strength in participants with PFPS. A controlled and optimal knee valgus angle during a functional task is the most important factor for injury prevention specialists. VCI training can be used as a supplemental method to prevent and treat lower extremity injury in patients with PFPS.

Postural stability and isokinetic strength do not predict knee valgus angle during single-leg drop-landing or single-leg squat in elite male rugby union players

2013 ◽  
Vol 21 (1) ◽  
pp. 37-46 ◽  
Author(s):  
Jonathan S. Akins ◽  
Peter F. Longo ◽  
Maurizio Bertoni ◽  
Nicholas C. Clark ◽  
Timothy C. Sell ◽  
...  
Keyword(s):  
Postural Stability ◽  
Rugby Union ◽  
Isokinetic Strength ◽  
Knee Valgus ◽  
Valgus Angle ◽  
Drop Landing ◽  
Single Leg Squat

scholarly journals Comparison of Knee and Hip Kinematics during Landing and Cutting between Elite Male Football and Futsal Players

Healthcare ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 606
Author(s):  
Abdolhamid Daneshjoo ◽  
Hadi Nobari ◽  
Aref Kalantari ◽  
Mohammadtaghi Amiri-Khorasani ◽  
Hamed Abbasi ◽  
...  
Keyword(s):  
Injury Prevention ◽  
Knee Flexion ◽  
Knee Joints ◽  
Knee Valgus ◽  
Valgus Angle ◽  
Injury Mechanisms ◽  
Injury Prevention Program ◽  
Hip Kinematics ◽  
Hip Flexion ◽  
Sport Injury Prevention

To design an accurate sport injury prevention program, alterations in the knee and hip kinematic variables involved in injury mechanisms should be known. The main purpose of the current study was to compare knee and hip kinematic variables during landing and cutting among male football and futsal players, and to discuss them within an injury description frame. Twenty football (20.5 ± 2.1 years., 74.5 ± 6.9 kg and 1.79 ± 0.07 m) and twenty futsal players (20.3 ± 2.0 years., 73.5 ± 7.1 kg and 1.78 ± 0.07 m), with at least three years’ experience of playing in the Kerman Province League, participated in this study. Hip flexion, knee flexion and knee valgus angle during two main movements with risk of injury, such as landing and cutting, were measured using a motion capture system with passive markers at 120-Hz sampling frequency. Landing and cutting maneuvers were administered in as natural way as possible. Results showed significant differences in landing and cutting maneuvers between groups in hip flexion, knee flexion and knee valgus angle. Results indicated that footballers have less extension of hip and knee joints than futsal players in landing maneuvers, which may be due to the higher requirement of jumping−landing maneuvers when playing football. In cutting maneuvers, footballers showed less hip and knee flexion than futsal players, whereas the knee valgus angle in cutting maneuvers was lower in futsal players. More information on the injury mechanisms of landing and cutting in football and futsal are needed to improve the design of injury prevention programs.

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