Key Points ▸ Hip abductor strength is moderately associated with single-leg dynamic balance as measured by the Y-Balance test (YBT). ▸ The association between hip strength and single-leg dynamic balance is strongest during the posterior reaches of the YBT. ▸ The requirement for greater hip flexion
Search Results
The Relationship Between Concentric Hip Abductor Strength and Performance of the Y-Balance Test (YBT)
Peter Francis, Kay Gray, and Nic Perrem
Intratester Reliability and Construct Validity of a Hip Abductor Eccentric Strength Test
Richard A. Brindle, David Ebaugh, and Clare E. Milner
Weakness of hip abductor muscles during eccentric loading and associated medial collapse have been hypothesized as an etiology of overuse and noncontact injuries, such as patellofemoral pain syndrome 1 and anterior cruciate ligament tears. 2 Furthermore, hip abductor muscle eccentric
Hip Abductor Fatigability and Recovery Are Related to the Development of Low Back Pain During Prolonged Standing
Daniel Viggiani and Jack P. Callaghan
-based changes in fatigability in clinical LBP populations appear to be related to altered neural commands to the muscle rather than fiber composition or atrophy. 29 , 30 Since PDs also have altered neural drive to their hip abductors, they may also demonstrate similar fatigue onset and recovery differences as
Effects of Hip Abduction Fatigue on Trunk and Shoulder Kinematics During Throwing and Passive Hip Rotational Range of Motion
Gretchen D. Oliver, Jessica K. Washington, Sarah S. Gascon, Hillary A. Plummer, Rafael F. Escamilla, and James R. Andrews
further investigation into the role of the hip abductors, specifically the gluteus medius, during throwing. The gluteus medius muscle is a primary hip abductor. The anterior fibers function to internally rotate and abduct the hip, whereas the posterior fibers externally rotate and abduct the hip. 13
Hip Abductor Rate of Torque Development as Opposed to Isometric Strength Predicts Peak Knee Valgus During Landing: Implications for Anterior Cruciate Ligament Injury
Kristen M. Stearns-Reider, Rachel K. Straub, and Christopher M. Powers
, females exhibit greater knee valgus angles compared with males, 2 which has been shown to independently predict ACL injury. 3 – 5 Hip abductor weakness is commonly thought to contribute to the higher degree of knee valgus in females. 6 – 9 While females consistently exhibit diminished strength of the
Hip Abductor Weakness and Lower Extremity Kinematics during Running
Becky L. Heinert, Thomas W. Kernozek, John F. Greany, and Dennis C. Fater
Objective:
To determine if females with hip abductor weakness are more likely to demonstrate greater knee abduction during the stance phase of running than a strong hip abductor group.
Study Design:
Observational prospective study design.
Setting:
University biomechanics laboratory.
Participants:
15 females with weak hip abductors and 15 females with strong hip abductors.
Main Outcome Measures:
Group differences in lower extremity kinematics were analyzed using repeated measures ANOVA with one between factor of group and one within factor of position with a significance value of P < .05.
Results:
The subjects with weak hip abductors demonstrated greater knee abduction during the stance phase of treadmill running than the strong group (P < .05). No other significant differences were found in the sagittal or frontal plane measurements of the hip, knee, or pelvis.
Conclusions:
Hip abductor weakness may influence knee abduction during the stance phase of running.
Subsequent Jumping Increases the Knee and Hip Abduction Moment, Trunk Lateral Tilt, and Trunk Rotation Motion During Single-Leg Landing in Female Individuals
Masato Chijimatsu, Tomoya Ishida, Masanori Yamanaka, Shohei Taniguchi, Ryo Ueno, Ryohei Ikuta, Mina Samukawa, Takumi Ino, Satoshi Kasahara, and Harukazu Tohyama
importance of controlling trunk and hip biomechanics in the frontal and transverse planes to decrease the knee abduction moment has been emphasized for ACL injury prevention. 11 , 30 , 31 While a previous study reported a trend, although not statistically significant, for the hip abduction moment to
Hip Abductor and External Rotator Strengths Correlate With Hop Symmetry in Men Athletes 2 Years After Anterior Cruciate Ligament Reconstruction
Zakariya H. Nawasreh, Mohammad A. Yabroudi, Mohamed N. Kassas, Sharf M. Daradkeh, and Khaldoon M. Bashaireh
determine differences in the hip abductor (ABD) and external rotator (ER) muscle strength measures between limbs, and to determine the relationship between hip ABD and ER muscle strength measures and hop performance LSIs in men athletes 2 years after ACLR. It was hypothesized that the involved limb would
Effect of Isometric Hip Abduction on Foot and Ankle Muscle Activity and Medial Longitudinal Arch During Short-Foot Exercise in Individuals With Pes Planus
Jung-Hoon Choi, Heon-Seock Cynn, Chung-Hwi Yi, Tae-Lim Yoon, and Seung-Min Baik
dynamic alignment of the lower limbs. 14 Although previous studies have shown that hip muscular strengthening and foot intrinsic strength exercises were effective for ankle and foot stability, no previous studies have applied isometric hip abduction (IHA) for hip stability during SFE. During SFE, the
Hip-Abduction Torque and Muscle Activation in People With Low Back Pain
Mark A. Sutherlin and Joseph M. Hart
Context:
Individuals with a history of low back pain (LBP) may present with decreased hip-abduction strength and increased trunk or gluteus maximus (GMax) fatigability. However, the effect of hip-abduction exercise on hip-muscle function has not been previously reported.
Objective:
To compare hip-abduction torque and muscle activation of the hip, thigh, and trunk between individuals with and without a history of LBP during repeated bouts of side-lying hip-abduction exercise.
Design:
Repeated measures.
Setting:
Clinical laboratory.
Participants:
12 individuals with a history of LBP and 12 controls.
Intervention:
Repeated 30-s hip-abduction contractions.
Main Outcome Measures:
Hip-abduction torque, normalized root-mean-squared (RMS) muscle activation, percent RMS muscle activation, and forward general linear regression.
Results:
Hip-abduction torque reduced in all participants as a result of exercise (1.57 ± 0.36 Nm/kg, 1.12 ± 0.36 Nm/kg; P < .001), but there were no group differences (F = 0.129, P = .723) or group-by-time interactions (F = 1.098, P = .358). All participants had increased GMax activation during the first bout of exercise (0.96 ± 1.00, 1.18 ± 1.03; P = .038). Individuals with a history of LBP had significantly greater GMax activation at multiple points during repeated exercise (P < .05) and a significantly lower percent of muscle activation for the GMax (P = .050) at the start of the third bout of exercise and for the biceps femoris (P = .039) at the end of exercise. The gluteal muscles best predicted hip-abduction torque in controls, while no consistent muscles were identified for individuals with a history of LBP.
Conclusions:
Hip-abduction torque decreased in all individuals after hip-abduction exercise, although individuals with a history of LBP had increased GMax activation during exercise. Gluteal muscle activity explained hip-abduction torque in healthy individuals but not in those with a history of LBP. Alterations in hip-muscle function may exist in individuals with a history of LBP.
