‘Does Hip Strength influence Valgus Knee Deviation during Landing?’

View/ open
Author
George, Mischale
Date
2015Type
Thesis
Publisher
Cardiff Metropolitan University
Metadata
Show full item recordAbstract
OBJECTIVE: The aims of this study were to examine the correlation between hip abduction
strength, hip external rotation strength and the occurrence of knee valgus in female netball
players. It also aimed to test if an intervention lasting for six-weeks would correct the
mechanical fault that occurred amongst the participants.
METHODOLOGY: Eleven participants were recruited from the Netball Sixths team at Cardiff
Metropolitan University. All participants confirmed that they had no previous injury at the
lower limb over the past 12 months and informed consent was gained from all participants.
The initial testing consisted of collecting strength measurement at the hip, using hand-held
dynamometry prior to the six-week intervention. The second phase required the
participants to perform a single-legged landing task on their dominant leg. A strength
programme was provided to participants under supervision over the duration of six weeks.
Post-intervention testing consisted of the athletes following the same procedures as
indicated for the pre-intervention testing.
DATA ANALYSIS: A Pearson’s Correlation Coefficient test was run to check for the
correlation between hip muscle strength and knee valgus. A Paired Samples T-Test was
then used to examine if a difference was present in hip strength and knee valgus, in
comparison to values provided pre-intervention.
RESULTS: The results demonstrated that no significant correlation was present as the
values were r >0.5, for both before and after the intervention. Significant differences were
observed between hip muscle strength and knee valgus angles (p >0.05) after the strength
programme was implemented.
CONCLUSION: It was concluded that hip muscle strength had no significant correlation with
valgus deviation at the knee. This means that hip muscle strength had a very weak
relationship with the demonstration of knee valgus. It was also found that hip abduction
strength had stronger correlation with medial knee deviation and may be used as a better
predictor when examining the relationship between strength and knee valgus. Significant
differences were observed post-intervention, between hip abduction strength, hip external
rotator strength and valgus knee deviation, when compared to the measurements
observed pre-intervention. This displays that the strengthening programme had a positive
effective on the variables examined.
Collections
Related items
Showing items related by title, author, subject and abstract.
-
LOWER LIMB RANGE OF MOVEMENT AND STRENGTH CHARACTERISTICS ASSOCIATED WITH DYNAMIC KNEE VALGUS IN ACTIVE YOUNG FEMALES
Sanderson-Hull, Donna Maria (2014-04)Objectives Dynamic knee valgus has been associated with increased risk of anterior cruciate lig-ament (ACL) injury and patellofemoral pain syndrome (PFPS) especially in females. The purpose of this study was to examine ... -
'Does hip range of motion influence the degree of lower limb valgus rotation in young active females?'
Clarke, Hayley (Cardiff Metropolitan University, 2013)Background: Knee and ankle injuries have a higher incidence rate in female than male athletes. Dynamic knee valgus (DKV) has been highlighted as a cause of non-contact knee injuries. Aim: The main aim of the study was ... -
DOES HIP MUSCLE STRENGTH INFLUENCE THE DEGREE OF LOWER LIMB VALGUS ROTATION IN YOUNG FEMALES?
Jade-Finley, Jessica (Cardiff Metropolitan University, 2013)Background: Female athletes are suffering more injuries to the knees than male athletes and this can be due to lower limb alignment issues. If the biomechanics of the lower limb are altered then certain anatomical structures, ...