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Hip Strength

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https://www.readbyqxmd.com/read/28933711/the-effect-of-hip-joint-angle-on-isometric-midthigh-pull-kinetics
#1
Thomas DosʼSantos, Christopher Thomas, Paul A Jones, John J McMahon, Paul Comfort
Dos'Santos, T, Thomas, C, Jones, PA, McMahon, JJ, and Comfort, P. The effect of hip joint angle on isometric midthigh pull kinetics. J Strength Cond Res 31(10): 2748-2757, 2017-The aim of this study were to compare isometric midthigh pull (IMTP) peak force (PF), time-specific force values (100-, 150-, and 200 ms), rate of force development (RFD) at predetermined time bands (0-100, 0-150, and 0-200 ms) and net forces between 2 commonly adopted hip joint angles (145°[hip145] and 175°[hip175]) with a 145° standardized knee angle...
October 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28932750/correlation-between-changes-in-visual-analog-scale-and-patient-reported-outcome-scores-and-patient-satisfaction-after-hip-arthroscopic-surgery
#2
Sivashankar Chandrasekaran, Chengcheng Gui, John P Walsh, Parth Lodhia, Carlos Suarez-Ahedo, Benjamin G Domb
BACKGROUND: Improvements in pain, function, and patient satisfaction are used to evaluate the outcomes of hip arthroscopic surgery. PURPOSE: To identify correlations between the visual analog scale (VAS) score for pain and patient satisfaction with 4 commonly used patient-reported outcome (PRO) scores to determine to what extent changes in these 2 parameters are reflected in each of the PRO scores. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 3...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28930870/hamstring-myoelectrical-activity-during-three-different-kettlebell-swing-exercises
#3
Michael J Del Monte, David A Opar, Ryan G Timmins, James Ross, Justin Wl Keogh, Christian Lorenzen
Kettlebell exercises have become an increasingly popular form of resistance training and component of lower body rehabilitative training programs; despite a lack of scientific literature illustrating internal mechanisms and effectiveness of these approaches. Participants (n=14) performed three different styles of kettlebell swings (hip hinge, squat and double knee extension) and were assessed for medial hamstrings (MH) and biceps femoris (BF) myoelectrical activity via surface electromyography (sEMG). Bipolar pre-gelled Ag/AgCl surface electromyography (sEMG) electrodes (10mm diameter, 20mm inter-electrode distance) were placed on the participant's dominant limb after correct skin preparation...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28930627/fitness-body-composition-and-vascular-health-in-adolescent-and-young-adult-survivors-of-paediatric-brain-cancer-and-cranial-radiotherapy
#4
Treya M Long, Shoshana R Rath, Tessa D Maroni, Karen E Wallman, Helen C Atkinson, Nicholas G Gottardo, Catherine H Cole, Catherine S Choong, Louise H Naylor
Background Survivors of paediatric brain cancer and/or cranial radiotherapy (CRT) are at an increased risk of developing serious comorbidities. Established risk factors for chronic disease include central obesity, endothelial abnormalities and diminished fitness. Objectives Here we characterised anthropometry, body composition, bone mineral density (BMD), heart rate (HR), blood pressure (BP), endothelial function, muscular strength and endurance and aerobic fitness in adolescent and young adult (AYA) survivors...
September 20, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28929919/evaluating-the-efficacy-of-functional-electrical-stimulation-therapy-assisted-walking-after-chronic-motor-incomplete-spinal-cord-injury-effects-on-bone-biomarkers-and-bone-strength
#5
B Catharine Craven, Lora M Giangregorio, S Mohammad Alavinia, Lindsie A Blencowe, Naaz Desai, Sander L Hitzig, Kei Masani, Milos R Popovic
To determine the efficacy of functional electrical stimulation therapy assisted walking (FES-T) compared to a conventional aerobic and resistance training (CONV) with respect to bone biomarkers and lower extremity bone strength outcomes among adults with chronic motor incomplete spinal cord injury (SCI). Design Parallel group randomized controlled trial ( www.clinicaltrials.gov - NCT0020196819). Site Tertiary academic rehabilitation centre in Canada. Methods Adults with chronic (≥18 months) motor incomplete SCI (C2-T12 AIS C-D) were consented and randomized to FES-T or CONV training for 45 minutes thrice-weekly for 4 months...
September 20, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28929525/diabetes-and-deficits-in-cortical-bone-density-microarchitecture-and-bone-size-framingham-hr-pqct-study
#6
Elizabeth J Samelson, Serkalem Demissie, L Adrienne Cupples, Xiaochun Zhang, Hanfei Xu, Ching-Ti Liu, Steven K Boyd, Robert R McLean, Kerry E Broe, Douglas P Kiel, Mary L Bouxsein
Older adults with type 2 diabetes (T2D) tend to have normal or greater areal bone mineral density (aBMD), as measured by DXA, than those who do not have diabetes (non-T2D). Yet risk of fracture is higher in T2D, including 40% to 50% increased hip fracture risk. We used HR-pQCT to investigate structural mechanisms underlying skeletal fragility in T2D. We compared cortical and trabecular bone microarchitecture, density, bone area, and strength in T2D and non-T2D. In secondary analyses we evaluated whether associations between T2D and bone measures differed according to prior fracture, sex, and obesity...
September 20, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28926125/the-prevalence-of-vertebral-fractures-is-associated-with-reduced-hip-bone-density-and-inferior-peripheral-appendicular-volumetric-bone-density-and-structure-in-older-women
#7
Lisa Johansson, Daniel Sundh, Michael Zoulakis, Robert Rudäng, Anna Darelid, Helena Brisby, Anna G Nilsson, Dan Mellström, Mattias Lorentzon
Vertebral fractures (VF) are among the most severe and prevalent osteoporotic fractures. Their association with bone microstructure have been investigated in several retrospective case-control studies with spine radiography for diagnosis of VF. The aim of this population-based cross-sectional study of 1027 women aged 75-80 years, was to investigate if prevalent VF, identified by vertebral fracture assessment (VFA) by dual-energy X-ray absorptiometry (DXA), was associated with appendicular volumetric bone density, structure and bone material strength index (BMSi), independently of hip areal bone mineral density (aBMD)...
September 19, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28922213/elastic-resistance-effectiveness-on-increasing-strength-of-shoulders-and-hips
#8
Kelsey J Picha, Muataz R Almaddah, Jordan Barker, Tavis Ciochetty, W Scott Black, Tim L Uhl
Elastic resistance is a common training method used to gain strength. Currently, progression with elastic resistance is based on the perceived exertion of the exercise or completion of targeted repetitions; exact resistance is typically unknown. This study's objective is to determine if knowledge of load during elastic resistance exercise will increase strength gains during exercises. Participants were randomized into two strength training groups, elastic resistance only and elastic resistance using a load cell (LC) that displays force during exercise...
September 12, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28920547/decreased-postoperative-gluteus-medius-muscle-cross-sectional-area-measured-by-computed-tomography-scan-in-patients-with-intertrochanteric-fractures-nailing
#9
Mitsuaki Noda, Yasuhiro Saegusa, Masayasu Takahashi, Yuma Takada, Masahiro Fujita, Issei Shinohara
BACKGROUND: In patients with femoral intertrochanteric fractures treated by cephalomedullary (CM) nailing, abduction force reportedly decreased by 25-30% during the postoperative follow-up period. The purpose of the current study is to evaluate the cross-sectional area (CSA) and adipose tissue ratio (ATR) of the gluteus medius muscle on the postoperative computed tomography (CT) view, expecting this graphic study will support clinical results. MATERIALS AND METHODS: A total of 27 patients with femoral intertrochanteric fractures treated by CM femoral nail implants completed the study...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28918423/non-discriminant-relationships-between-leg-muscle-strength-mass-and-gait-performance-in-healthy-young-and-old-adults
#10
Thomas Muehlbauer, Urs Granacher, Ron Borde, Tibor Hortobágyi
BACKGROUND: Gait speed declines with increasing age, but it is unclear if gait speed preferentially correlates with leg muscle strength or mass. OBJECTIVE: We determined the relationship between gait speed and (1) leg muscle strength measured at 3 lower extremity joints and (2) leg lean tissue mass (LTM) in healthy young (age: 25 years, n = 20) and old (age: 70 years, n = 20) adults. METHODS: Subjects were tested for maximal isokinetic hip, knee, and ankle extension torque, leg LTM by bioimpedance, and gait performance (i...
September 16, 2017: Gerontology
https://www.readbyqxmd.com/read/28917519/endoscopic-or-arthroscopic-iliopsoas-tenotomy-for-iliopsoas-impingement-followingtotal-hip-replacement-a-prospective-multicenter-64-case-series
#11
W Guicherd, N Bonin, T Gicquel, J E Gedouin, X Flecher, M Wettstein, M Thaunat, N Prevost, E Ollier, O May
INTRODUCTION: Impingement between the acetabular component and the iliopsoas tendon is a cause of anterior pain after total hip replacement (THR). Treatment can be non-operative, endoscopic or arthroscopic, or by open revision of the acetabular component. Few studies have assessed these options. The present study hypothesis was that endo/arthroscopic treatment provides rapid pain relief with a low rate of complications. METHODS: A prospective multicenter study included 64 endoscopic or arthroscopic tenotomies for impingement between the acetabular component and the iliopsoas tendon, performed in 8 centers...
September 13, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28914719/physical-therapy-management-of-patients-with-chronic-low-back-pain-and-hip-abductor-weakness
#12
Seth Peterson, Thomas Denninger
BACKGROUND AND PURPOSE: Hip abductor dysfunction is common in individuals with chronic low back pain (CLBP). Previous research investigating abductor strengthening in the heterogeneous CLBP population is sparse and has failed to target those patients most likely to benefit. The aim of the current case series was to describe the physical therapy management and outcomes of 3 patients with CLBP matching a previously identified subgroup characterized by substantial hip abductor weakness. CASE DESCRIPTION: Three nonconsecutive patients with CLBP-a 77-year-old man, a 78-year-old woman, and an 85-year-old woman-were treated in an outpatient physical therapy clinic...
September 13, 2017: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/28913949/relationship-of-number-of-missing-teeth-to-hip-fracture-in-elderly-patients-a-cohort-pilot-study
#13
Jennifer Priebe, Robert A Wermers, Stephen A Sems, Christopher M Viozzi, Sreenivas Koka
PURPOSE: To determine the relationship between the number of missing natural teeth or remaining natural teeth and osteoporotic hip fracture in elderly patients and to determine the relationship between the number of missing teeth or remaining teeth and osteoporotic fracture risk assessment (FRAX) probability. MATERIALS AND METHODS: Number of missing teeth was determined by clinical oral exam on a total of 100 subjects, 50 with hip fractures and 50 without. Ten-year fracture risk and hip fracture risk probabilities were calculated using the FRAX tool...
September 15, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28913369/changes-in-the-width-of-the-tibiofibular-syndesmosis-related-to-lower-extremity-joint-dynamics-and-neuromuscular-coordination-on-drop-landing-during-the-menstrual-cycle
#14
Michie Okazaki, Masaaki Kaneko, Yukisato Ishida, Norio Murase, Toshihito Katsumura
BACKGROUND: Many injuries of the lower extremities, especially the knee and ankle, occur during sports activity, and the incidence rate is higher in women than in men. HYPOTHESIS: The hypothesis was that phases of the menstrual cycle affect the width of the tibiofibular syndesmosis during drop landing in healthy young women and that such changes at the tibiofibular joint also affect the dynamics and neuromuscular coordination of the lower extremities. STUDY DESIGN: Descriptive laboratory study...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28902873/sarcopenia-in-patients-with-hip-fracture-a-multicenter-cross-sectional-study
#15
Ole Martin Steihaug, Clara Gram Gjesdal, Bård Bogen, Målfrid Holen Kristoffersen, Gunhild Lien, Anette Hylen Ranhoff
BACKGROUND: Sarcopenia is prevalent in older persons and is a risk factor for falls, fractures, and mortality. The aim of this study was to determine a) the feasibility of determining sarcopenia in patients with acute hip fracture, b) the prevalence of sarcopenia and c) associations of sarcopenia with nutritional status and comorbidities. METHODS: A multicenter cross-sectional study on sarcopenia in male and female patients with acute hip fracture. Participants were previously ambulatory and living in the community...
2017: PloS One
https://www.readbyqxmd.com/read/28900560/building-a-better-gluteal-bridge-electromyographic-analysis-of-hip-muscle-activity-during-modified-single-leg-bridges
#16
B J Lehecka, Michael Edwards, Ryan Haverkamp, Lani Martin, Kambry Porter, Kailey Thach, Richard J Sack, Nils A Hakansson
BACKGROUND: Gluteal strength plays a role in injury prevention, normal gait patterns, eliminating pain, and enhancing athletic performance. Research shows high gluteal muscle activity during a single-leg bridge compared to other gluteal strengthening exercises; however, prior studies have primarily measured muscle activity with the active lower extremity starting in 90 ° of knee flexion with an extended contralateral knee. This standard position has caused reports of hamstring cramping, which may impede optimal gluteal strengthening...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28900559/peak-hip-muscle-torque-measurements-are-influenced-by-sagittal-plane-hip-position
#17
David M Bazett-Jones, Tyler Tylinksi, Jelena Krstic, Abigail Stromquist, Jay Sparks
BACKGROUND: An optimal position for strength testing of the hip musculature has not been identified. However, sagittal plane hip position during testing has been shown to influence hip external rotation strength. HYPOTHESIS/PURPOSE: The purpose of this study was to compare hip extension, external rotation, and abduction isometric torque at positions with differing degrees of hip flexion using a handheld dynamometer. STUDY DESIGN: A cross-sectional laboratory study...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28894425/analysis-of-wearable-and-smartphone-based-technologies-for-the-measurement-of-barbell-velocity-in-different-resistance-training-exercises
#18
Carlos Balsalobre-Fernández, David Marchante, Eneko Baz-Valle, Iván Alonso-Molero, Sergio L Jiménez, Mario Muñóz-López
The purpose of this study was to analyze the validity, reliability, and accuracy of new wearable and smartphone-based technology for the measurement of barbell velocity in resistance training exercises. To do this, 10 highly trained powerlifters (age = 26.1 ± 3.9 years) performed 11 repetitions with loads ranging 50-100% of the 1-Repetition maximum in the bench-press, full-squat, and hip-thrust exercises while barbell velocity was simultaneously measured using a linear transducer (LT), two Beast wearable devices (one placed on the subjects' wrist -BW-, and the other one directly attached to the barbell -BB-) and the iOS PowerLift app...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28891759/the-validity-and-reliability-of-the-sphygmomanometer-for-hip-strength-assessment-in-australian-football-players
#19
Liam Anthony Toohey, Marcos de Noronha, Carolyn Taylor, James Thomas
OBJECTIVES: To investigate the intra-rater and inter-rater reliability of the sphygmomanometer for the assessment of the adductor squeeze test and isometric hip abduction strength and to investigate the concurrent validity of the sphygmomanometer for the assessment of hip muscular strength. METHOD: Thirty-two healthy adult male community Australian football players (age 23.9 ± 4.5 years) were assessed by two blinded raters that measured the strength of the adductor squeeze test and isometric hip abduction, using a commercially available sphygmomanometer...
September 11, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28888934/femoral-stem-incorporating-a-diamond-cubic-lattice-structure-design-manufacture-and-testing
#20
Bruno Jetté, Vladimir Brailovski, Mathieu Dumas, Charles Simoneau, Patrick Terriault
BACKGROUND: The current total hip prostheses with dense femoral stems are considerably stiffer than the host bones, which leads to such long-term complications as aseptic loosening, and eventually, the need for a revision. Consequently, the lifetime of the implantation does not match the lifetime expectation of young patients. METHOD: A femoral stem design featuring a porous structure is proposed to lower its stiffness and allow bone tissue ingrowth. The porous structure is based on a diamond cubic lattice in which the pore size and the strut thickness are selected to meet the biomechanical requirements of the strength and the bone ingrowth...
August 31, 2017: Journal of the Mechanical Behavior of Biomedical Materials
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