scholarly journals Is Hip Muscle Strength Associated with Dynamic Knee Valgus in a Healthy Adult Population? A Systematic Review

2021 ◽  
Vol 18 (14) ◽  
pp. 7669
Author(s):  
Ali Mohammed Alzahrani ◽  
Msaad Alzhrani ◽  
Saeed Nasser Alshahrani ◽  
Wael Alghamdi ◽  
Mazen Alqahtani ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Adult Population ◽  
Knee Valgus ◽  
Journal Articles ◽  
Hip Muscle ◽  
Hip Abductor ◽  
Hip Muscles ◽  
Analysis System ◽  
The Relationship ◽  
External Rotator

This study aimed to systematically review research investigating the association between hip muscle strength and dynamic knee valgus (DKV). Four databases (MEDLINE, PubMed, CINAHL, and SPORTDiscus) were searched for journal articles published from inception to October 2020. Seven studies investigating the association between hip muscle strength and DKV using a two-dimensional motion analysis system in healthy adults were included. The relationship between hip abductor muscle strength and DKV was negatively correlated in two studies, positively correlated in two studies, and not correlated in three studies. The DKV was associated with reduced hip extensor muscle strength in two studies and reduced hip external rotator muscle strength in two studies, while no correlation was found in three and five studies for each muscle group, respectively. The relationship between hip muscle strength, including abductors, extensors, and external rotators and DKV is conflicting. Considering the current literature limitations and variable methodological approaches used among studies, the clinical relevance of such findings should be interpreted cautiously. Therefore, future studies are recommended to measure the eccentric strength of hip muscles, resembling muscular movement during landing. Furthermore, high-demand and sufficiently challenging functional tasks revealing lower limb kinematic differences, such as cutting and jumping tasks, are recommended for measuring the DKV.

scholarly journals Hip muscle strength and static balance in patients with snapping hip syndrome – a pilot study

2016 ◽  
Vol 30 (3) ◽  
pp. 55-68
Author(s):  
Agnieszka Witke-Woźniak ◽  
Michał Wychowański ◽  
Tomasz Dąmbski ◽  
Karina Szymfel ◽  
Tomasz Kochański
Keyword(s):  
Muscle Strength ◽  
Iliotibial Band ◽  
Static Balance ◽  
Common Symptom ◽  
Young Generation ◽  
Snapping Hip ◽  
Hip Muscle ◽  
Hip Muscles ◽  
Snapping Hip Syndrome ◽  
External Rotator

Abstract Introduction: Snapping hip syndrome (SHS) occurs in 5-10% of the global population. A back and forth skip of the tendon of the dysfunctional muscle across the osseous prominence is the most common symptom of this condition. Mainly young generation suffers from SHS. Depending on the structures that cause an audible snap, snapping hip syndrome may be classified into intra-articular and extra-articular types. The main aim of the research was to assess the strength of the major hip muscles and static balance in patients with snapping hip syndrome. Material and methods: The research was carried out on 10 untrained females and 10 untrained males with extra-articular snapping hip syndrome. An average age was approximately 25 years. The research was conducted with the use of interview questionnaire, clinical examination, balance assessment on the JBA Staniak 4P dynamometric platform and measurements of the hip muscle strength on the JBA Staniak SPB2 set. Results: Patients with SHS manifested an increased tension in iliotibial band, while significant weakening of internal and external rotator muscle strength was noted in women and significant weakening of external rotator muscle strength was observed in men. No correlations between hip muscles strength and stabilographic test results in patients with snapping hip syndrome were found. Conclusions: Individuals with SHS and healthy persons demonstrate similar balance levels. The treatment of snapping hip syndrome should include: 1) restoring internal rotator muscle strength in women, 2) restoring external rotator muscle strength both in women and in men, as well as 3) restoring iliotibial band flexibility.

scholarly journals The relationship between hip muscle strength and dynamic knee valgus in asymptomatic females: A systematic review

2019 ◽  
Vol 37 ◽  
pp. 197-209 ◽  
Author(s):  
Jack Dix ◽  
Stephanie Marsh ◽  
Bart Dingenen ◽  
Peter Malliaras
Keyword(s):  
Systematic Review ◽  
Muscle Strength ◽  
Knee Valgus ◽  
Hip Muscle ◽  
The Relationship

Relationships between Knee Valgus, Hip-Muscle Strength, and Hip-Muscle Recruitment during a Single-Limb Step-Down

2009 ◽  
Vol 18 (1) ◽  
pp. 104-117 ◽  
Author(s):  
John H. Hollman ◽  
Barbara E. Ginos ◽  
Jakub Kozuchowski ◽  
Amanda S. Vaughn ◽  
David A. Krause ◽  
...  
Keyword(s):  
Muscle Strength ◽  
External Rotation ◽  
Frontal Plane ◽  
Gluteus Maximus ◽  
Knee Valgus ◽  
Outcome Measurements ◽  
Hip Muscle ◽  
Hip Abduction ◽  
Step Down ◽  
Rotation Strength

Context:Reduced strength and activation of hip muscles might correlate with increased weight-bearing knee valgus.Objective:To describe relationships among frontal-plane hip and knee angles, hip-muscle strength, and electromyographic (EMG) recruitment in women during a step-down.Design:Exploratory study.Setting:Laboratory.Participants:20 healthy women 20 to 30 years of age.Interventions:Frontal-plane hip and knee angles were measured. Gluteus maximus and medius recruitment were examined with surface EMG. Hip-abduction and -external-rotation strength were quantified with handheld dynamometry.Main Outcome Measurements:The authors analyzed correlation coefficients between knee and hip angles, gluteus maximus and medius EMG, and hip-abduction and -external-rotation strength.Results:Hip-adduction angles (r = .755, P = .001), gluteus maximus EMG (r = −.451, P = .026), and hip-abduction strength (r = .455, P = .022) correlated with frontal-plane projections of knee valgus.Conclusions:Gluteus maximus recruitment might have greater association with reduced knee valgus in women than does external-rotation strength during step-down tasks. Gluteus medius strength might be associated with increased knee valgus.

scholarly journals The Effects of 12-Weeks of Sensorimotor Exercise on Pain, Strength, Pelvic Drop, and Dynamic Knee Valgus in Males With Patellofemoral Pain Syndrome

2020 ◽  
Vol 10 (3) ◽  
pp. 159-168
Author(s):  
Ali Yalfani ◽  
◽  
Mohamadreza Ahmadi ◽  
Farzaneh Gandomi ◽  
◽  
...  
Keyword(s):  
Muscle Strength ◽  
Pain Syndrome ◽  
Patellofemoral Pain Syndrome ◽  
Quadriceps Muscle ◽  
Patellofemoral Pain ◽  
Control Group ◽  
Knee Valgus ◽  
Quadriceps Muscle Strength ◽  
Hip Abductor ◽  
Experimental Group

Purpose: Patellofemoral Pain Syndrome (PFPS) is among the most prevalent complaints observed in healthcare clinics. This group of patients encounters Pelvic Drop (PD) and Dynamic Knee Valgus (DNV); its’ causes have been reported as pain and decreased muscle strength. The current study aimed to explore the effects of a 12-week Sensorimotor Exercise (SME) on pain, strength, PD, and DNV in males with PFPS. Methods: This randomized double-blind clinical trial involved 32 patients with PFPS. The study samples were randomly divided into the experimental (n=16) and control (n=16) groups. To assess pain, the Visual Analogue Scale (VAS) was used. Moreover, quadriceps muscle strength was measured by the hip abductor hand dynamometer. To analyze PD and DNV, camera and Kinova software were used during stairs descent. The experimental group performed 12 weeks of SME for 3 one-hour weekly sessions. However, the control group received no therapeutic intervention during this time. The obtained data were analyzed in SPSS using Analysis of Covariance (ANCOVA).  Results: The data analysis results suggested that pain significantly reduced in the experimental group, compared to the control group, after twelve weeks of SME (P<0.001). Besides, quadriceps muscle strength (P<0.002) and hip abductor muscle strength (P<0.001) improved, and PD angle (P<0.002) and DNV (P<0.003) were reduced. Conclusion: SME reduced pain and facilitated the frequency and time of muscle activation. It also increased the strength of the gluteus medius muscle as the main stabilizer of the pelvis chain and led to a reduction in PD and DNV. Thus, SME could be used as a comprehensive protocol treatment to improve various disorders in patients with PFPS.

scholarly journals External Rotator Sparing with Posterior Acetabular Fracture Surgery: Does It Change Outcome?

2014 ◽  
Vol 2014 ◽  
pp. 1-6
Author(s):  
Halil Ceylan ◽  
Ozgur Selek ◽  
Murat Inanir ◽  
Omer Yonga ◽  
Bahar Odabas Ozgur ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Internal Rotation ◽  
Acetabular Fracture ◽  
Positive Impact ◽  
Peak Torque ◽  
Acetabular Fractures ◽  
Hip Muscle ◽  
Flexion Extension ◽  
Maximum Work ◽  
External Rotator

This study analyses the results of the treatment with external rotator sparing approach in acetabular fractures to determine whether muscle sparing has a positive impact on functional outcome. 20 patients with a mean age of 45.9 years (range: 26–64) that had been treated for displaced acetabular fractures were included in this series. Short Musculoskeletal Function Assessment (SMFA) questionnaire and hip muscle strength measurement were done at the 24-month of follow-up period. The radiographic results at the final followup were excellent in 9 hips (45%), good in 6 hips (30%), fair in 4 hips (20%), and poor in one hip (5%) according to the criteria developed by Matta. The average SMFA score for all of the patients was 18.3 (range: 0–55.4). The mean dysfunctional and bother indexes were 17.2 and 20.6, respectively. The overall muscle strength deficit was 11.8%. The greatest loss of strength was in internal rotation. In patients with better postoperative reduction quality of acetabular fracture, peak torque, and maximum work of hip flexion, extension and also internal rotation maximum work deficit were significantly lower(P<0.05). Accurate initial reduction and longer postoperative muscle strengthening exercise programs seem critical to decrease postoperative hip muscle weakness after acetabular fractures.

scholarly journals The Relationship between Vitamin D Status and Rotator Cuff Muscle Strength in Professional Volleyball Athletes

Nutrients ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2768 ◽  
Author(s):  
Do Kyung Kim ◽  
Geon Park ◽  
Liang-Tseng Kuo ◽  
Won Hah Park
Keyword(s):  
Vitamin D ◽  
Muscle Strength ◽  
Vitamin D Insufficiency ◽  
Vitamin D Status ◽  
Shoulder Muscle ◽  
Vitamin D Levels ◽  
Volleyball Players ◽  
The Relationship ◽  
Shoulder Muscle Strength ◽  
External Rotator

This study aimed to examine the vitamin D status of professional volleyball athletes and to determine its correlation with shoulder muscle strength. We included 52 healthy male professional volleyball players (23.2 ± 4.5 years), who were categorized by vitamin D status (<20 ng/mL: deficiency, 20–30 ng/mL: insufficiency, and >30 ng/mL: sufficiency). We examined the strength of the internal rotator (IR) and external rotator (ER) muscles of the shoulder by using an isokinetic dynamometer. Fourteen players (26.9%) had vitamin D deficiency, 24 players (46.2%) were vitamin D-insufficient, and 14 players (26.9%) were vitamin D-sufficient. There was no significant correlation between vitamin D level and shoulder muscle strength at 60°/s (IR, r = 0.159, p = 0.26; ER, r = 0.245, p = 0.08) and at 180°/s (IR, r = −0.093, p = 0.51; ER, r = −0.037, p = 0.79). Moreover, the isokinetic shoulder strengths were not significantly different across the three groups in all settings. In conclusion, vitamin D insufficiency was common in elite volleyball players. Though not being associated with isokinetic muscle weakness, vitamin D levels should be regularly monitored, and vitamin D should be supplied to young elite athletes, considering its importance for musculoskeletal health.

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