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Journal articles on the topic 'Hip abductor isometric strength'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Vora, Keni, Urmi Bhatt, and Reji K Samuel. "Relationship Between Strength of Hip Abductors, Pain Intensity, Duration of Symptoms, and Tightness of Iliotibial (IT) Band in Participants with Knee Osteoarthritis: A Cross-Sectional Study." International Journal of Health Sciences and Research 15, no. 2 (2025): 216–23. https://doi.org/10.52403/ijhsr.20250229.

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Background and Objective: Osteoarthritis of knee is very common rheumatological problem with prevalence of 22% to 39% in India. Lower limb strengthening exercises are an important component of the treatment for knee osteoarthritis. Evidence suggests that, strengthening the hip abductor muscles may influence joint loading and/or OA-related symptoms as well as the length of IT band but no study has actually investigated the relationship of the strength of hip abductor muscles with pain, duration of symptoms and the length of Iliotibial (IT) band and the relationship of the length of IT band with

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Bohn, Marie Bagger, Signe Kierkegaard-Brøchner, Kasper Spoorendonk, Stian Langgård Jørgensen, Bent Lund, and Jeppe Lange. "Impaired Hip Muscle Strength, Function, and Patient-Reported Outcomes in Women With Hip Abductor Tendon Tears: A Cross-sectional Study of 62 Patients and 24 Healthy Volunteers." JOSPT Open 1, no. 1 (2023): 70–77. http://dx.doi.org/10.2519/josptopen.2023.0012.

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OBJECTIVE: The impact of hip abductor tendon tears on hip muscle strength in women is unknown. We described maximal isometric hip muscle strength in women with magnetic resonance imaging–verified hip abductor tendon tears who were scheduled for surgery and compared to age-matched healthy volunteers, and evaluated whether strength was correlated with patient-reported and function outcomes. DESIGN: Cross-sectional, comparative study. METHODS: Strength was assessed using a handheld dynamometer in 62 patients and 24 healthy volunteers (100% females) with mean ± SD age of 55 ± 12 and 53 ± 6 years.

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Kini, Raveena R., Prachita Walankar, Vrushali Panhale, Vijaya Krishnan, and Hetvi D. Gala. "Association of isometric hip abductor strength with Kellgren-Lawrence grade among patients with bilateral knee osteoarthritis." Journal of Musculoskeletal Surgery and Research 8 (January 31, 2024): 24–29. http://dx.doi.org/10.25259/jmsr_228_2023.

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Objectives: The degree of knee osteoarthritis (OA) is usually graded with the Kellgren-Lawrence (KL) grading system. Studies have shown the effect of weak hip abductor muscle as a contributory factor to knee OA. However, there is a shortage of literature regarding the association of hip abductor strength with the KL grade. Methods: Individuals diagnosed with bilateral knee OA between the ages 40 and 70 years, who have had a recent knee radiograph and are mobile and willing to participate, were included in the study. A brief demographic and basic screening was done following which the isometric

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Jaenada-Carrilero, Eloy, Luis Baraja-Vegas, Paula Blanco-Giménez, Raul Gallego-Estevez, Iker J. Bautista, and Juan Vicente-Mampel. "Association between Hip/Groin Pain and Hip ROM and Strength in Elite Female Soccer Players." Journal of Clinical Medicine 13, no. 18 (2024): 5648. http://dx.doi.org/10.3390/jcm13185648.

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Background/Objectives: Hip strength and range of motion have been compared in soccer players with and without hip and groin pain but only in male footballers or gender-combined samples. In female soccer players, the biomechanics contributing to this injury remain poorly understood compared to other sporting injuries. The aim of the present study is to investigate whether differences exist in adductor and abductor isometric test values and hip joint range of motion between elite female soccer players with longstanding groin pain and injury-free controls. Methods: Ten female elite soccer players

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International, Journal of Medical Science and Innovative Research (IJMSIR). "Relationship between foot posture, hip abductor strength, and endurance in Nurses." International Journal of Medical Science and Innovative Research (IJMSIR) 9, no. 1 (2024): 83–91. https://doi.org/10.5281/zenodo.15363726.

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<strong>Abstract</strong> <strong>Background:</strong> Prolonged standing posture at work leads to static contraction and also a reduction in the blood supply to the muscles particularly in the back and legs leading to muscle fatigue, and thereby affecting muscle endurance. Foot deviations also create alterations in the movement of lower extremities and can also magnify the risk of injury. This study has analyzed, if there is a relationship between foot posture (cavus, neutral, and planus) and hip abductor strength and endurance in a nurse’s job that demands prolonged standing and walkin

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Pohl, Michael B., Karen D. Kendall, Chirag Patel, J. Preston Wiley, Carolyn Emery, and Reed Ferber. "Experimentally Reduced Hip-Abductor Muscle Strength and Frontal-Plane Biomechanics During Walking." Journal of Athletic Training 50, no. 4 (2015): 385–91. http://dx.doi.org/10.4085/1062-6050-49.5.07.

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Context Researchers have postulated that reduced hip-abductor muscle strength may have a role in the progression of knee osteoarthritis by increasing the external knee-adduction moment. However, the relationship between hip-abductor strength and frontal-plane biomechanics remains unclear. Objective To experimentally reduce hip-abduction strength and observe the subsequent changes in frontal-plane biomechanics. Design Descriptive laboratory study. Setting Research laboratory. Patients or Other Participants Eight healthy, recreationally active men (age = 27 ± 6 years, height = 1.75 ± 0.11 m, mas

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Stearns-Reider, Kristen M., Rachel K. Straub, and Christopher M. Powers. "Hip Abductor Rate of Torque Development as Opposed to Isometric Strength Predicts Peak Knee Valgus During Landing: Implications for Anterior Cruciate Ligament Injury." Journal of Applied Biomechanics 37, no. 5 (2021): 471–76. http://dx.doi.org/10.1123/jab.2020-0398.

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Peak knee valgus has been shown to predict anterior cruciate ligament injury. The purpose of the current study was to compare peak rate of torque development (RTD) to peak isometric torque as a predictor of peak knee valgus during landing. Twenty-three healthy females participated. Hip abductor muscle performance was quantified using 2 types of isometric contractions: sustained and rapid. Peak isometric torque was calculated from the sustained isometric contraction. Peak RTD was calculated from the rapid isometric contraction (0–50 and 0–200 ms after force initiation). Kinematic data were coll

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Powers, Christopher M., Navid Ghoddosi, Rachel K. Straub, and Khalil Khayambashi. "Hip Strength as a Predictor of Ankle Sprains in Male Soccer Players: A Prospective Study." Journal of Athletic Training 52, no. 11 (2017): 1048–55. http://dx.doi.org/10.4085/1062-6050-52.11.18.

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Context: Diminished hip-abductor strength has been suggested to increase the risk of noncontact lateral ankle sprains. Objective: To determine prospectively whether baseline hip-abductor strength predicts future noncontact lateral ankle sprains in competitive male soccer players. Design: Prospective cohort study. Setting: Athletic training facilities and various athletic fields. Patients or Other Participants: Two hundred ten competitive male soccer players. Main Outcome Measure(s): Before the start of the sport season, isometric hip-abductor strength was measured bilaterally using a handheld

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Sánchez-Migallón, Violeta, Alvaro López-Samanes, Pablo Terrón-Manrique, et al. "The Acute Effect of Match-Play on Hip Isometric Strength and Flexibility in Female Field Hockey Players." Applied Sciences 10, no. 14 (2020): 4900. http://dx.doi.org/10.3390/app10144900.

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The aim of this study was to determine the acute effect of simulated field hockey match-play on isometric knee flexion, adductor (ADD) and abductor (ABD) strength, adductor/abductor (ADD/ABD) strength ratio, countermovement jump height (CMJ), hip flexion and ankle dorsiflexion range of motion (ROM). Thirty competitive female field hockey players (23.0 ± 3.9 years old) participated in the study. Apart from the afore-mentioned variables, external (through GPS) and internal load (through RPE) were measured before (pre-match) and immediately after simulated hockey match-play (post-match) in both l

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Jandric, Slavica. "Isometric hip muscle strength in posttraumatic below-knee amputees." Vojnosanitetski pregled 64, no. 12 (2007): 807–11. http://dx.doi.org/10.2298/vsp0712807j.

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Background/Aim. Traumas and war injuries, next to chronic occlusive artery disease and diabetes mellitus-derived complications, are the most frequent cause of the lower limbs amputation. They affect mostly younger population that need a higher level of activities as compared with the elderly. Medical rehabilitation is very significant for the muscle performance improvement in this population providing their social reintegration. The aim of this study was to investigate the effect of below-knee amputation on the hip isometric muscle strength and effect of rehabilitation on improvement of hip mu

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Ismailidis, Petros, Peter Kvarda, Werner Vach, Christian Appenzeller-Herzog, and Annegret Mündermann. "Abductor muscle strength deficit in patients after total hip arthroplasty for hip osteoarthritis: a protocol for a systematic review and meta-analysis." BMJ Open 10, no. 7 (2020): e035413. http://dx.doi.org/10.1136/bmjopen-2019-035413.

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IntroductionConservation of abductor muscle strength is directly associated with physical function after total hip replacement (THA). Although many studies have tried to explore and quantify a potential abductor muscle strength deficit after THA as well as identify possible causes and treatment options, this topic has not been addressed systematically.Methods and analysisHuman-based studies reporting measurements of hip abductor strength will be included in this review. Studies reporting on hip abductor strength measured manually or isometric measurements at an abduction angle other than 0° wi

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DiMattia, Mario A., Ann L. Livengood, Tim L. Uhl, Carl G. Mattacola, and Terry R. Malone. "What Are the Validity of the Single-Leg-Squat Test and Its Relationship to Hip-Abduction Strength?" Journal of Sport Rehabilitation 14, no. 2 (2005): 108–23. http://dx.doi.org/10.1123/jsr.14.2.108.

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Context:The Trendelenburg and single-leg-squat (SLS) tests are purported measures of hip-abduction strength that have not been previously validated.Objective:To correlate isometric hip-abduction strength to frontal-plane hip motion during an SLS and determine the criterion validity of a clinical-observation-analysis method to grade an SLS against 2-dimensional kinematic analysis.Design:Single-measure, concurrent validity.Setting:Biodynamics research laboratory.Participants:50 uninjured participants.Main Outcome Measures:Hip-abduction strength and hip and knee kinematic data during a Trendelenb

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M. Jackson, Kaitlin, Tyson A. C. Beach, and David M. Andrews. "The Effect of an Isometric Hip Muscle Strength Training Protocol on Valgus Angle During a Drop Vertical Jump in Competitive Female Volleyball Players." International Journal of Kinesiology and Sports Science 5, no. 4 (2017): 1. http://dx.doi.org/10.7575/aiac.ijkss.v.5n.4p.1.

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Background: Hip muscle weakness is associated with higher peak knee valgus angles (VA) during drop vertical jumps (DVJ) and linked to ACL injury risk. Objective: To determine if isometric strengthening (IST) of the hip extensor, abductor, and external rotator muscle groups would reduce VA exhibited during a DVJ. Methodology: Fourteen female volleyball players (7 training (TG), 7 control (CG), VA≥9˚ during DVJ) participated. Pre- and post-test gluteal, quadriceps and hamstring strength were measured with a digital force gauge. Three-dimensional kinematics were collected during 15 DVJ trials. TG

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Bertoli, Josefina, Ewertton de Souza Bezerra, Sueyla Ferreira da Silva dos Santos, Luis Alberto Gobbo, and Ismael Forte Freitas Júnior. "The influence of mat Pilates training adherence on strength and flexibility parameters in breast cancer survivors undergoing hormone therapy." Journal of Exercise Rehabilitation 18, no. 4 (2022): 272–83. http://dx.doi.org/10.12965/jer.2244298.149.

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The aim of this study was to evaluate the influence of adherence to mat Pilates training on lower and upper body strength and flexibility in breast cancer survivors. Breast cancer survivors ( ≥ 40 years) with cancer stages 0–III undergoing hormone therapy participated in this study. For this secondary investigation only the intervention group was analyzed, divided into low and high training adherence. Participants performed a 60-min session of mat Pilates, 3 times/wk, for 24 weeks. Concentric, eccentric, and isometric hip flexor-extensor muscle peak torque, and isometric maximal strength param

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Yousefzadeh, Abbas, Azadeh Shadmehr, Gholam Reza Olyaei, Nasrin Naseri, and Zahra Khazaeipour. "Effect of Holmich protocol exercise therapy on long-standing adductor-related groin pain in athletes: an objective evaluation." BMJ Open Sport & Exercise Medicine 4, no. 1 (2018): e000343. http://dx.doi.org/10.1136/bmjsem-2018-000343.

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Aim To objectively evaluate the effect of Holmich protocol-based exercise therapy on long-standing adductor-related groin pain (LSAGP). Methods We reproduced the Holmich protocol of exercise therapy and objectively evaluated its effect on 17 male athletes (mean age, 25.07±4.96 years) suffering from LSAGP, of whom 14 participants completed the 10 weeks treatment period. The study was designed as a single-blinded, before-and-after clinical trial. Main outcome measures included pain, functional ability, hip range of motion (ROM), hip abductor and adductor muscle strength, and successful return to

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Gonçalves, Lillian, Filipe Manuel Clemente, Joel Ignacio Barrera, et al. "Exploring the Determinants of Repeated-Sprint Ability in Adult Women Soccer Players." International Journal of Environmental Research and Public Health 18, no. 9 (2021): 4595. http://dx.doi.org/10.3390/ijerph18094595.

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This study aimed to explore the main determinants of repeated-sprint ability (RSA) in women soccer players considering aerobic capacity, sprinting performance, change-of-direction, vertical height jump, and hip adductor/abductor isometric strength. Twenty-two women soccer players from the same team participating in the first Portuguese league were observed. Fitness assessments were performed three times during a 22-week cohort period. The following assessments were made: (i) hip abductor and adductor strength, (ii) squat and countermovement jump (height), (iii) change-of-direction test, (iv) l

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Spudić, Darjan, Ažbe Ribič, Nejc Šarabon, and Primož Pori. "Relationship Between Single-Leg Countermovement Jump Height, Technique, and Hip Strength in Elite Handball Players." Applied Sciences 15, no. 9 (2025): 4651. https://doi.org/10.3390/app15094651.

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Single-leg jumping is a fundamental movement in sports and is frequently used for performance assessment and injury risk evaluation. However, the specific kinetic and kinematic factors influencing jump performance remain unclear. This study aimed to examine the relationships between sagittal and frontal plane kinematic variables, maximal and explosive isometric hip strength, and single-leg countermovement jump (SLCMJ) performance. We assessed eighty elite handball players who performed SLCMJs on force plates, with jumps being video recorded from both the sagittal and frontal planes. Maximal an

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Fuchs, Michael, Marie-Anne Hein, Martin Faschingbauer, et al. "Abductor Muscle Force after Straight-Stem Compared to Short-Stem Total Hip Arthroplasty through a Modified Direct Lateral Approach: Functional Assessment of 70 Consecutive Patients of a Randomized Controlled Clinical Trial." Journal of Clinical Medicine 10, no. 6 (2021): 1235. http://dx.doi.org/10.3390/jcm10061235.

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Because of preservation of proximal femoral bone stock and minimized soft tissue trauma, short-stem implants are becoming increasingly important in total hip arthroplasty (THA). The postulated advantage regarding the functional outcome has not been verified. We hypothesized an increased abductor muscle strength by the use of a short-stem design. Seventy consecutive patients of a randomized clinical trial were included. Of these, 67 patients met the inclusion criteria after 12 months. Thirty-five patients received a standard straight stem and 32 patients a short-stem femoral component. All surg

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Krolikowska, Paulina, Artur Golas, Petr Stastny, Jakub Kokstejn, Wojciech Grzyb, and Michal Krszysztofik. "Abductor and adductor strength relation to sprint performance in soccer players." Baltic Journal of Health and Physical Activity 15, no. 3 (2023): Article6. http://dx.doi.org/10.29359/bjhpa.15.3.06.

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Introduction: The hip muscle strength plays an important role in sprinting and non-contact in-juries, where their role in soccer players needs to be recognized. This study aimed to examine the relationship between the strength of hip abductor (Abd), hip adductor (Add) and linear sprint performance (5 m and 35 m). Sixteen professional soccer players (Second Polish League) participated in the study (age = 24 ± 3.2 years, body mass = 75.3 ± 9.58 kg, height = 179 ± 5.6 cm, soccer training experience = 8 ± 2.9 years). 5 m and 3 m linear sprint performance was described by: peak acceleration, peak v

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Hoglund, Lisa T., Howard J. Hillstrom, Ann E. Barr-Gillespie, Margery A. Lockard, Mary F. Barbe, and Jinsup Song. "Frontal Plane Knee and Hip Kinematics During Sit-to-Stand and Proximal Lower Extremity Strength in Persons With Patellofemoral Osteoarthritis: A Pilot Study." Journal of Applied Biomechanics 30, no. 1 (2014): 82–94. http://dx.doi.org/10.1123/jab.2012-0244.

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Increased joint stress and malalignment are etiologic factors in osteoarthritis. Static tibiofemoral frontal plane malalignment is associated with patellofemoral osteoarthritis (PFOA). Patellofemoral joint stress is increased by activities such as sit-to-stand (STS); this stress may be even greater if dynamic frontal plane tibiofemoral malalignment occurs. If hip muscle or quadriceps weakness is present in persons with PFOA, aberrant tibiofemoral frontal plane movement may occur, with increased patellofemoral stress. No studies have investigated frontal plane tibiofemoral and hip kinematics du

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Dalton, Harold Lawrence, Brent D. Bevard, Stacey K. Fuller, Victoria A. Brander, S. D. Stulberg, and Robert L. Wixon. "ISOMETRIC ABDUCTOR STRENGTH AND ACTIVITY LEVEL AFTER TOTAL HIP ARTHROPLASTY." American Journal of Physical Medicine & Rehabilitation 78, no. 2 (1999): 183. http://dx.doi.org/10.1097/00002060-199903000-00048.

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Krolikowska, Paulina, Piotr Rodak, Monika Papla, Wojciech Grzyb, and Artur Golas. "Analysis of the adductors and abductors' maximum isometric strength on the level of speed and agility in basketball players." Baltic Journal of Health and Physical Activity 15, no. 1 (2023): Article3. http://dx.doi.org/10.29359/bjhpa.15.1.03.

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Introduction: his study investigated the relationship between hip abductor strength (Abd), adductor strength (Add), straight accelerations and decelerations, and during changes of direction (COD 90°) performance in basketball players. Material and Methods: Fourteen basketball players participated (age = 23.6 ± 4.4 years, body mass = 86.3 ± 5.9 kg, body height = 192.3 ± 6.2 cm, training experience = 6.7 ± 2.6 years). Straight running results and running with a change of direction (COD 90°) have been described as the time (s) obtained for a given length. Following tests were carried out: maximum

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Porto, Jaqueline Mello, Luciana Mendes Cangussu-Oliveira, Renato Campos Freire Junior, et al. "Diagnostic Accuracy of Clinical Tests for the Indirect Assessment of Hip Abductor Muscle Strength in Community-Dwelling Older Women." Physical Therapy 100, no. 11 (2020): 1967–76. http://dx.doi.org/10.1093/ptj/pzaa139.

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Abstract Objective The objective of this study was to determine the accuracy of 3 clinical tests (lateral step [LS], tandem gait [TG], and single-leg stance [SS]) in identifying older women with reduced hip abductor muscle strength and to determine the post-test probability of each test and of their combination in changing the certainty of diagnosis. Methods In this cross-sectional study, a total of 123 older women received clinical testing to obtain the variables LS height, time for TG execution, percentage of errors in TG, and time of permanence on SS and were tested for isometric hip abduct

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Ferber, Reed, Karen D. Kendall, and Lindsay Farr. "Changes in Knee Biomechanics After a Hip-Abductor Strengthening Protocol for Runners With Patellofemoral Pain Syndrome." Journal of Athletic Training 46, no. 2 (2011): 142–49. http://dx.doi.org/10.4085/1062-6050-46.2.142.

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Abstract Context: Very few authors have investigated the relationship between hip-abductor muscle strength and frontal-plane knee mechanics during running. Objective: To investigate this relationship using a 3-week hip-abductor muscle-strengthening program to identify changes in strength, pain, and biomechanics in runners with patellofemoral pain syndrome (PFPS). Design: Cohort study. Setting: University-based clinical research laboratory. Patients or Other Participants: Fifteen individuals (5 men, 10 women) with PFPS and 10 individuals without PFPS (4 men, 6 women) participated. Intervention(

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Kekelekis, Afxentios, Rabiu Muazu Musa, Pantelis T. Nikolaidis, Filipe Manuel Clemente, and Eleftherios Kellis. "Hip Muscle Strength Ratios Predicting Groin Injury in Male Soccer Players Using Machine Learning and Multivariate Analysis—A Prospective Cohort Study." Muscles 3, no. 3 (2024): 297–309. http://dx.doi.org/10.3390/muscles3030026.

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Despite ongoing efforts, the relationship between groin strength and injury remains unclear. The challenge of accurately predicting injuries presents an opportunity for researchers to develop prevention strategies to reduce the occurrence of such injuries. Consequently, this issue requires further investigation to obtain insights into effective mitigation strategies. In 120 male soccer players, the maximum isometric strength of the hip muscle groups was measured, and the strength ratios were calculated. Previous injury and anthropometric data were registered. Injury data were collected followi

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Rojas-Jaramillo, Andres, Daniel Quintero-Lotero, Camilo Garcia-Torres, Jorge L. Petro, and Diego A. Bonilla. "Acute Effects of Dry Needling on Lower Limb Muscle Strength in CrossFit Athletes with Latent Trigger Points: A Randomized Triple-Blinded Pilot Clinical Trial." Physical Education Theory and Methodology 23, no. 3 (2023): 412–22. http://dx.doi.org/10.17309/tmfv.2023.3.14.

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Study purpose. The purpose of this study was to evaluate the acute effect of deep dry needling (DP) on lower-limb muscle strength-related variables in CrossTraining recreational athletes with latent trigger point (TrP). Materials and methods. A total of 19 healthy CrossFit®-trained males (27.8 [4.7] years; 79.8 [10.4] kg; 1.76 [0.07] cm) with myofascial TrP in quadriceps, gluteus or gastrocnemius muscles completed this repeated-measures triple-blind pilot clinical trial. Participants were randomly allocated into either experimental (EG, n = 10) or Sham (SG, n = 9) groups. After allocation, the

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Petrovic, Milos, Vladimir Puzovich, Jorgelina Ramos, Stanislav Skrkar, and Yerlan Seisenbekov. "Influence of hip strength on acl injury related biomechanics during the cutting maneuver in preadolescent students (practical implication for physical education teachers and sports pedagogues)." Pedagogy and Psychology 46, no. 1 (2021): 140–46. http://dx.doi.org/10.51889/2021-1.2077-6861.19.

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Anterior cruciate ligament (ACL) injuries are one of the most serious injuries of the lower limb and can result in a relatively low rate of return to sport and decreased quality of life in later years, as well as to the psychological attitude towards sports among young people. Previous research has investigated the interaction between the hip muscles and knee valgus moments where some studies have concluded that decreased hip abductor and external rotator strength is a risk factor for ACL injury, but no research has been conducted on preadolescent population. Data from 271 students (174 girls)

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Awwad, Daniel H., Jonathan D. Buckley, Rebecca L. Thomson, Matthew O’Connor, Tania A. Carbone, and Mellick J. Chehade. "Testing the Hip Abductor Muscle Strength of Older Persons Using a Handheld Dynamometer." Geriatric Orthopaedic Surgery & Rehabilitation 8, no. 3 (2017): 166–72. http://dx.doi.org/10.1177/2151458517722608.

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Objective: To investigate the reliability of a clinically applicable method of dynamometry to assess and monitor hip abductor muscle strength in older persons. Design: Bilateral isometric hip abductor muscle strength measured with a handheld dynamometer, patients supine with the contralateral hip positioned directly against a wall for stabilization. Reliability determined by comparing intra-assessor and inter-assessor results and comparison to a criterion standard (stabilized dynamometer with patients in the standing position). Setting: UniSA Nutritional Physiology Research Centre. Participant

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Vaz, Margaret D., John F. Kramer, Cecil H. Rorabeck, and Robert B. Bourne. "Isometric Hip Abductor Strength Following Total Hip Replacement and Its Relationship to Functional Assessments." Journal of Orthopaedic & Sports Physical Therapy 18, no. 4 (1993): 526–31. http://dx.doi.org/10.2519/jospt.1993.18.4.526.

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Alvarenga, Glauber, Henry Dan Kiyomoto, Emília Cardoso Martinez, Giancarlo Polesello, and Vera Lúcia dos Santos Alves. "NORMATIVE ISOMETRIC HIP MUSCLE FORCE VALUES ASSESSED BY A MANUAL DYNAMOMETER." Acta Ortopédica Brasileira 27, no. 2 (2019): 124–28. http://dx.doi.org/10.1590/1413-785220192702202596.

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ABSTRACT Objective: Hand-held dynamometry is a quantitative and accessible means of determining the isometric force of muscle groups. Methods: A total of 52 women aged 20–29 years with no complaints of hip pain who were sedentary or sporadically active and had a body mass index of 18.5–24.99 kg/m2 were included. All participants underwent bilateral assessments using hand-held dynamometry of the flexor, extensor, adductor, and abductor muscles as well as the internal and external rotator hip muscles. All hip movements were measured. All contraction data collected by the dynamometer are expresse

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Ebert, Jay R., Anne Smith, William Breidahl, Michael Fallon, and Gregory C. Janes. "Association of Preoperative Gluteal Muscle Fatty Infiltration With Patient Outcomes in Women After Hip Abductor Tendon Repair Augmented With LARS." American Journal of Sports Medicine 47, no. 13 (2019): 3148–57. http://dx.doi.org/10.1177/0363546519873672.

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Background: Hip abductor tendon repair has demonstrated encouraging outcomes. The influence of fatty infiltration (FI) on outcome has not been explored. Purpose: To investigate the association between preoperative hip abductor FI and clinical outcome after hip abductor tendon repair. Study Design: Case series; Level of evidence, 4. Methods: A total of 84 women underwent hip abductor tendon repair. The mean age was 64.6 years (range, 43-84 years); body mass index, 27.7 (range, 20.0-40.2); and duration of symptoms, 3.4 years (range, 6 months–20 years). The 6-minute walk test, isometric hip abduc

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Kawaguchi, Kohei, Shuji Taketomi, Yuri Mizutani, et al. "Hip Abductor Muscle Strength Deficit as a Risk Factor for Inversion Ankle Sprain in Male College Soccer Players: A Prospective Cohort Study." Orthopaedic Journal of Sports Medicine 9, no. 7 (2021): 232596712110202. http://dx.doi.org/10.1177/23259671211020287.

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Background: Previous studies have attempted to determine whether certain risk factors can predict the occurrence of inversion ankle sprains in male collegiate soccer players. However, no consensus has been reached on the predictive risk factors of inversion ankle sprain in this population. Purpose: To identify risk factors for inversion ankle sprains among male collegiate soccer players. Study Design: Cohort study; Level of evidence, 2. Methods: Included were 145 male collegiate soccer players in Japan who were assessed during a preseason medical checkup for potential risk factors of inversion

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Palekar, Pramod J., Luvai M. Karimjee, and Tushar J. Palekar. "Correlation between Core and Hip Abductor Endurance in Overweight and Obese Students with Flexible Flat Feet." Journal of Neonatal Surgery 14, no. 4S (2025): 299–311. https://doi.org/10.52783/jns.v14.1793.

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Flexible flatfoot is a common foot deformity that can lead to altered biomechanics and excessive pronation during weight-bearing activities. Prior studies have linked proximal weakening of the hip abductor muscles and core to flatfoot. Additionally, a greater incidence of flatfoot deformity and decreased hip and core strength have been connected to obesity. Nevertheless, not much research has been done on the connection between obesity, flatfoot, hip abductor endurance, and core endurance. The aim of this study was to analyse the correlation between core muscular endurance and hip abductor end

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Kollock, Roger O., Bonnie Van Lunen, Jennifer L. Linza, and James A. Onate. "Comparison of Isometric Portable Fixed Dynamometry to Isokinetic Dynamometry for Assessment of Hip Strength." International Journal of Athletic Therapy and Training 18, no. 6 (2013): 1–6. http://dx.doi.org/10.1123/ijatt.18.6.1.

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Context:Assessment of hip strength can be performed with either isokinetic or isometric testing procedures, but the degree of association between values derived from the alternative testing methods has not been previously documented.Objective:To investigate the relationship between isometric peak torque and isokinetic peak torque at 60°·s-1 for various hip motions.Participants:Eighteen physically active males (N = 9) and females (N = 9) participated (22 ± 3 years, 173.0 ± 10.5 cm, 73.8 ± 16.7 kg).Intervention(s):Three isokinetic repetitions at 60°·s-1 and three isometric contractions of 5 s ea

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Moreno-Pérez, Victor, Fabio Yuzo Nakamura, Violeta Sánchez-Migallón, et al. "The acute effect of match-play on hip range of motion and isometric strength in elite tennis players." PeerJ 7 (November 11, 2019): e7940. http://dx.doi.org/10.7717/peerj.7940.

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Background Groin injuries are some of the most common injuries tennis players suffer. Several factors (e.g., post-match decrease in hip adductor (ADD) strength) have been proposed as possible mechanisms for increasing the incidence of this type of injury. However, the risk factors of developing groin injuries after a tennis match have not yet been delineated. Objective The aim of this study was to determine the effect of tennis match-play on isometric ADD and abductor (ABD) strength and passive hip range of motion (ROM). Methods Twenty-six male tennis players (20.30 ± 4.98 years) took part in

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Sweelam, Aalaa M., Mohammed M. Hegazy, Ahmad H. Azzam, and Mohammed S. Abdelsalam. "Hip abductors versus knee extensors strengthening on quadriceps isometric strength in in patients with knee osteoarthritis." Fizjoterapia Polska 22, no. 4 (2022): 16–20. http://dx.doi.org/10.56984/8zg1a6hn3.

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Purpose. To detect effect of hip abductors against quadriceps exercises on quadriceps isometric strength in Knee OA individuals. Methods. Seventy patients with bilateral knee OA were recruited , ages ranged between 50-70 years. They were randomized into equal groups; hip abductors strengthening exercises (HAS) group and knee extensors strengthening (KES) group. Both groups received hamstring stretch. Duration was 6 weeks (2 sessions per week). Baseline and 6 weeks assessments of quadriceps isometric strength were done using hand held dynamometer. Results. there wasn’t any statistical significa

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Beard, Megan Q., Samantha A. Boland, and Phillip A. Gribble. "Reliability of the Hand-Held Dynamometer During Hip Isometric Strength Testing Both With and Without a Stabilization Strap." International Journal of Athletic Therapy and Training 25, no. 1 (2020): 37–42. http://dx.doi.org/10.1123/ijatt.2018-0083.

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Decreased hip strength is often present in patients with chronic overuse lower extremity injuries. The hand-held dynamometer (HHD) can be used in a clinical setting to quantify hip strength; however, reliability of the device remains unclear. The purpose of this study was to determine the interexaminer and intersession reliability of a HHD when measuring isometric hip abduction (HABD) and external rotation (HER) strength, both with and without a fixed strap. The HHD had good to high reliability regardless of examiner, session, or stabilization when measuring HABD (ICC = 0.885–0.977) and HER (I

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Yousefzadeh, Abbas, Azadeh Shadmehr, Gholam Reza Olyaei, Nasrin Naseri, and Zahra Khazaeipour. "The Effect of Therapeutic Exercise on Long-Standing Adductor-Related Groin Pain in Athletes: Modified Hölmich Protocol." Rehabilitation Research and Practice 2018 (2018): 1–10. http://dx.doi.org/10.1155/2018/8146819.

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Objective. The Hölmich protocol in therapeutic exercise is the most appropriate method for the treatment of long-standing adductor-related groin pain (LSAGP). Herein, we evaluated a modified Hölmich protocol to resolve the possible limitations intrinsic to the Hölmich protocol in terms of the rate of return to sport and the recovery period for athletes with LSAGP. Design. The study followed a single-blind, before/after study design, where 15 athletes with LSAGP (mean age = 26.13 years; SD = 4.48) performed a 10-week modified Hölmich therapeutic exercise protocol. Results. Outcome scores relate

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Beck, Edward C., Benedict U. Nwachukwu, Laura M. Krivicich, et al. "Preoperative Hip Extension Strength Is an Independent Predictor of Achieving Clinically Significant Outcomes After Hip Arthroscopy for Femoroacetabular Impingement Syndrome." Sports Health: A Multidisciplinary Approach 12, no. 4 (2020): 361–72. http://dx.doi.org/10.1177/1941738120910134.

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Background: The effect of preoperative hip strength on outcomes after hip arthroscopy for femoroacetabular impingement syndrome (FAIS) is unclear. The purpose of this study was to determine whether preoperative isometric hip strength is associated with outcome scores at 6 months as well as achieving the minimal clinically important difference (MCID) and patient acceptable symptomatic state (PASS) in patients undergoing hip arthroscopy for FAIS. Hypothesis: Increased preoperative isometric strength will be correlated with short-term postoperative outcomes and will be predictive of achieving hig

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Rosa, Filipe, Hugo Sarmento, João Pedro Duarte, et al. "Knee and hip agonist-antagonist relationship in male under-19 soccer players." PLOS ONE 17, no. 4 (2022): e0266881. http://dx.doi.org/10.1371/journal.pone.0266881.

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The purpose of this study was to evaluate the strength of the knee flexors and extensors and hip abductor and adductor muscles in young soccer players. Twenty-three male under-19 soccer players participated in this study (age: 17.7 ± 0.2 years; height: 173.0 ± 1.1 cm; body mass: 66.1 ± 1.3 kg). Body composition was measured using a bioelectrical impedance (InBody770), and the dynamometry was performed by an isokinetic dynamometer (Biodex System 3) for knee flexion and extension, and by an isometric dynamometer (Smart Groin Trainer), for hip adduction and abduction. Comparisons were made betwee

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Herrington, Lee. "The Effect of Hip Abductor Muscle Fatigue on Frontal Plane Knee Projection Angle During Step Landing." International Journal of Athletic Therapy and Training 19, no. 4 (2014): 38–43. http://dx.doi.org/10.1123/ijatt.2014-0003.

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Context:A number of acute and overuse knee pathologies share a mechanism involving a poor dynamic alignment of the limb creating increased stress in the tissues. Inappropriate execution of a correct strategy during landing has been suggested to involve insufficient activity of the hip abductor and external rotator muscles. Limited data describing the relationships between hip-abductor muscle fatigue and hip/knee joint mechanics exists.Objective:To investigate the effect of fatigue of the hip abductor muscles on knee valgus angle.Design:Repeated measures.Participants:30 asymptomatic subjects: 1

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McCann, Ryan S., Brenn A. Bolding, Masafumi Terada, Kyle B. Kosik, Ian D. Crossett, and Phillip A. Gribble. "Isometric Hip Strength and Dynamic Stability of Individuals With Chronic Ankle Instability." Journal of Athletic Training 53, no. 7 (2018): 672–78. http://dx.doi.org/10.4085/1062-6050-238-17.

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Context: Compared with individuals who have a history of lateral ankle sprain (LAS) without markers of chronic ankle instability (CAI; LAS copers) and healthy people, those with CAI often exhibit neuromuscular impairments and dynamic-stability deficits at the hip. However, the influence of hip-strength deficits on dynamic stability remains unknown. Objective: To compare isometric hip strength and dynamic stability in individuals with or without CAI and examine the degree of dynamic-stability variance explained by isometric hip strength. Design: Case-control study. Setting: Research laboratory.

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Paz, Gabriel Andrade, Haroldo Gualter Santana, Francine de Oliveira, et al. "The relationship between y balance performance and hip strength in recreationally trained women." Research, Society and Development 10, no. 10 (2021): e327101019167. http://dx.doi.org/10.33448/rsd-v10i10.19167.

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This study set one´s sight on the relationship between lower quarter y balance test (YBT-LQ) score with hip isometric strength with recreationally resistance-trained women. Utilizing dynamic balance as a screening tool for lower extremity injury risk has been proposed as a potential solution in injury prevention and injury assessment. A convenience sample of twenty young college females (22.3 ± 2.1 years) with a background in regular strength or plyometric training volunteered to participate in this study. The scores of YBT-LQ for each direction were calculated. A hand-held dynamometer was use

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Howard, Jennifer S., Melisa A. Fazio, Carl G. Mattacola, Timothy L. Uhl, and Cale A. Jacobs. "Structure, Sex, and Strength and Knee and Hip Kinematics During Landing." Journal of Athletic Training 46, no. 4 (2011): 376–85. http://dx.doi.org/10.4085/1062-6050-46.4.376.

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Context: Researchers have observed that medial knee collapse is a mechanism of knee injury. Lower extremity alignment, sex, and strength have been cited as contributing to landing mechanics. Objective: To determine the relationship among measurements of asymmetry of unilateral hip rotation (AUHR); mobility of the foot, which we described as relative arch deformity (RAD); hip abduction–external rotation strength; sex; and me-dial collapse of the knee during a single-leg jump landing. We hypothesized that AUHR and RAD would be positively correlated with movements often associated with medial col

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Stastny, Petr, Michal Lehnert, Amr Zaatar, Zdenek Svoboda, Zuzana Xaverova, and Przemysław Pietraszewski. "The Gluteus Medius Vs. Thigh Muscles Strength Ratio and Their Relation to Electromyography Amplitude During a Farmer’s Walk Exercise." Journal of Human Kinetics 45, no. 1 (2015): 157–65. http://dx.doi.org/10.1515/hukin-2015-0016.

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Abstract The strength ratio between hamstrings and quadriceps (H/Q) is associated with knee injuries as well as hip abductor muscle (HAB) weakness. Sixteen resistance trained men (age, 32.5 ± 4.2 years) performed 5 s maximal isometric contractions at 75° of knee flexion/extension and 15° of hip abduction on a dynamometer. After this isometric test they performed a Farmer´s walk exercise to find out if the muscle strength ratio predicted the electromyography amplitude expressed as a percentage of maximum voluntary isometric contraction (%MVIC). The carried load represented a moderate intensity

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Wilson, Benjamin R., Kaley E. Robertson, Jeremy M. Burnham, Michael C. Yonz, Mary Lloyd Ireland, and Brian Noehren. "The Relationship Between Hip Strength and the Y Balance Test." Journal of Sport Rehabilitation 27, no. 5 (2018): 445–50. http://dx.doi.org/10.1123/jsr.2016-0187.

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Context: The Y Balance Test was developed as a test of dynamic postural control and has been shown to be predictive of lower-extremity injury. However, the relationship between hip strength and performance on the Y Balance Test has not been fully elucidated. Objective: The goal of this study was to identify the relationship between components of isometric hip strength and the Y Balance Test, to provide clinicians better guidance as to specific areas of muscle performance to address in the event of poor performance on the Y Balance Test. Design: Laboratory study. Setting: Biomechanics laborator

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Jerez-Mayorga, Daniel, Luis Javier Chirosa Ríos, Alvaro Reyes, Pedro Delgado-Floody, Ramon Machado Payer, and Isabel María Guisado Requena. "Muscle quality index and isometric strength in older adults with hip osteoarthritis." PeerJ 7 (August 7, 2019): e7471. http://dx.doi.org/10.7717/peerj.7471.

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Background Older adults with hip osteoarthritis (OA) suffer a progressive loss of muscle quality and strength, affecting their daily activities and quality of life. The purpose of this study is to compare the levels of isometric strength among older adults with and without hip OA and healthy young adults, and to determine the relationship between muscle quality index (MQI) and isometric strength. Methods Fourteen subjects with hip OA (65.6 ± 3.0 years), 18 healthy older adults (66.6 ± 6.5 years) and 32 young adults (20.7 ± 2.0 years) participated in the study. MQI, isometric muscle strength of

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McCann, Ryan S., Masafumi Terada, Kyle B. Kosik, and Phillip A. Gribble. "Landing Kinematics and Isometric Hip Strength of Individuals With Chronic Ankle Instability." Foot & Ankle International 40, no. 8 (2019): 969–77. http://dx.doi.org/10.1177/1071100719846085.

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Background: Chronic ankle instability (CAI) is associated with hip strength deficits and altered movement in the lower extremity. However, it remains unclear how hip strength deficits contribute to lateral ankle sprain (LAS) mechanisms. We aimed to compare lower extremity landing kinematics and isometric hip strength between individuals with and without CAI and examine associations between hip kinematics and strength. Methods: Seventy-six individuals completed 5 single-leg landings, during which we collected three-dimensional ankle, knee, and hip kinematics from 200 milliseconds pre–initial co

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Hollman, John H., Kimberly E. Kolbeck, Jamie L. Hitchcock, Jonathan W. Koverman, and David A. Krause. "Correlations between Hip Strength and Static Foot and Knee Posture." Journal of Sport Rehabilitation 15, no. 1 (2006): 12–23. http://dx.doi.org/10.1123/jsr.15.1.12.

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Context:Hip-muscle weakness might be associated with impaired biomechanics and postures that contribute to lower extremity injuries.Objective:To examine relationships between hip-muscle strength, Q angle, and foot pronation.Design:Correlational study.Setting:Academic laboratory.Participants:33 healthy adults.Main Outcome Measures:Maximal isometric hip abduction (Abd), adduction (Add), external-rotation (ER) and internal-rotation (IR) strength; Q angle of the knee; and longitudinal arch angle of the foot. We analyzed Pearson product– moment (r) correlation coefficients between the Abd/Add and E

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Bobowik, Patrycja, Maria Agnieszczak, Patryk Legut, Ida Wiszomirska, and Katarzyna Kaczmarczyk. "The Overload knee joint pain in horse riding athletes." Volume 18.0, Issue N1 2024, N1 2024 (2024): 63–69. http://dx.doi.org/10.51371/issn.1840-2976.2024.18.1.8.

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Purpose: Horse riding has been garnering increasing interest in recent years, but it is also recognized as one of the most injury-prone sports. The aim of this study was to identify the specific causes of overload knee joint pain in individuals practicing horse riding. Methods: The study group consisted of 18 female horse riders (aged 23.72±3.34 years) and the control group consisted of 19 females (aged 23.68±1.00) not engaged in regular horse-riding training. Internal (IR), external (ER) hip joint rotations, hip joint abduction (ABD) and adduction (ADD) were measured. The abductor, adductor a

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