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https://www.readbyqxmd.com/read/29786622/quantitative-analysis-of-proximal-and-distal-kinetic-chain-musculature-during-dynamic-exercises
#1
Gretchen D Oliver, Jessica K Washington, Jeff W Barfield, Sarah S Gascon, Gabrielle Gilmer
Oliver, GD, Washington, JK, Barfield, JW, Gascon, SS, and Gilmer, G. Quantitative analysis of proximal and distal kinetic chain musculature during dynamic exercises. J Strength Cond Res 32(6): 1545-1553, 2018-Proximal to distal sequencing for the dynamic movement of throwing is dependent on the movement and stability of the lumbopelvic-hip complex (LPHC) and scapula. Although the need for proximal stability for distal mobility has been vastly documented, pre-throwing programs tend to focus on the traditional rotator cuff activation exercises before long toss...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29761113/differences-in-hip-joint-biomechanics-and-muscle-activation-in-individuals-with-femoroacetabular-impingement-compared-with-healthy-asymptomatic-individuals-is-level-ground-gait-analysis-enough
#2
Derek J Rutherford, Janice Moreside, Ivan Wong
Background: Femoroacetabular impingement (FAI) is a recognized cause of hip and groin pain and a significant factor in hip joint function during sport. Objective tests for understanding hip function are lacking in this population. Purpose: To determine whether biomechanical and electromyographic features of hip function during level-ground walking differ between a group diagnosed with FAI and those with no symptoms of FAI. Study Design: Controlled laboratory study...
May 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29756497/relationship-between-muscular-and-bony-anatomy-in-native-hips-a-theoretical-background-for-approach-specific-implant-positioning
#3
Doruk Akgün, Philipp von Roth, Tobias Winkler, Carsten Perka, Adam Trepczynski, Bernd Preininger
INTRODUCTION: The aim of this study was to analyse the relationship between bony joint orientation and the distribution of hip musculature. METHODS: The bone anatomy of the hip (femoral antetorsion (AT), acetabular anteversion (AV), and combined anteversion (AV/AT)) and the muscle volume of the gluteal muscles and the tensor fasciae latae were analysed bilaterally using computed tomography data of 49 patients. Muscle force direction (MFD) was determined for each muscle...
May 1, 2018: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29753876/electromyographic-study-of-hip-muscles-involved-in-total-hip-arthroplasty-surprising-results-using-the-direct-anterior-minimally-invasive-approach
#4
Jules Bernard, Fredson Razanabola, Julien Beldame, Stéphane Van Driessche, Helena Brunel, Thomas Poirier, Jean Matsoukis, Fabien Billuart
BACKGROUND: The functional and clinical benefit of minimally invasive total hip arthroplasty (THA) is well-known, but the literature reports impaired gait and posture parameters as compared to the general population, especially following use of the anterior minimally invasive approach, which has more severe impact on posture than the posterior approach. The reasons for this impairment, however, remain unexplained. We therefore conducted a surface electromyography (sEMG) study of the hip muscles liable to be affected by arthroplasty surgery: gluteus maximus (GMax), gluteus medius (GMed, tensor fasciae latae (TFL), and sartorius (S)...
May 10, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29740556/effects-of-abdominal-hollowing-and-abdominal-bracing-during-side-lying-hip-abduction-on-the-lateral-rotation-and-muscle-activity-of-the-pelvis
#5
Dong-Woo Kim, Tae-Ho Kim
It is important that compensatory lateral movement of the pelvis does not occur during side-lying hip abduction (SHA). The purpose of the present study is to investigate the effects of abdominal hollowing and abdominal bracing during SHA on pelvic lateral rotation (PLR) and the electromyography activity of the gluteus medius, quadratus lumborum (QL), external oblique abdominis (EO) and internal oblique abdominis (IO). A total of 22 healthy male adults participated in the study. The subjects performed three conditions in side-lying in random order: SHA with abdominal hollowing (SHA-AH), SHA with abdominal bracing (SHA-AB), and SHA without any condition (SHA-WC)...
April 2018: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29728835/muscle-tendon-related-abnormalities-detected-by-ultrasonography-are-common-in-symptomatic-hip-dysplasia
#6
Julie Sandell Jacobsen, Lars Bolvig, Per Hölmich, Kristian Thorborg, Stig Storgaard Jakobsen, Kjeld Søballe, Inger Mechlenburg
INTRODUCTION: Hip dysplasia is characterized by reduced acetabular coverage of the femoral head leading to an increased mechanical load on the hip joint and the acting hip muscles. Potentially, the muscles and tendons functioning close to the hip joint may present with overuse-related ultrasonography findings. The primary aim was to report the prevalence of muscle-tendon-related abnormalities detected by ultrasonography in 100 patients with symptomatic hip dysplasia. The secondary aim was to investigate correlations between muscle-tendon-related abnormalities detected by ultrasonography and clinically identified pain related to muscles and tendons...
May 4, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29705166/differences-in-knee-and-hip-adduction-and-hip-muscle-activation-in-runners-with-and-without-iliotibial-band-syndrome
#7
Robert L Baker, Richard B Souza, Mitchell J Rauh, Michael Fredericson, Michael D Rosenthal
BACKGROUND: Iliotibial Band Syndrome has been associated with altered hip and knee kinematics in runners. Prior studies have recommended further research on neuromuscular factors at the hip. The frontal plane hip muscles have been a strong focus in strength comparison, but not for electromyography investigation. OBJECTIVE: To compare hip surface electromyography, and frontal plane hip and knee kinematics, in runners with and without iliotibial band syndrome. DESIGN: Observational cross sectional study, 30 participants were tested for motion capture at the hip and knee and muscle activation in the lateral and posterior hip...
April 26, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29686165/-chronic-low-back-pain-associated-with-gluteus-medius-muscle-a-case-report
#8
Kazunori Oda, Kyongsong Kim, Rinko Kokubo, Daijiro Morimoto, Takao Kitamura, Toyohiko Isu, Akio Morita
The clinical features and etiology of low back pain(LBP)and buttock pain(BuP)has been poorly understood. We report a case of long-term BuP that was successfully treated with gluteus medius muscle(GMeM)decompression under local anesthesia. A 71-year-old man was referred to our hospital because of long-term BuP and claudication. Left BuP that radiated to the left thigh was observed. The pain was mostly triggered by palpation at the middle of the iliac crest and greater trochanter. Lumbar and pelvic radiograms showed no significant lesions...
April 2018: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29669167/scoliosis-in-fibrous-dysplasia-mccune-albright-syndrome-factors-associated-with-curve-progression-and-effects-of-bisphosphonates
#9
Jason A Berglund, Sri Harsha Tella, Kaitlyn F Tuthill, Lauren Kim, Lori C Guthrie, Scott M Paul, Robert Stanton, Michael T Collins, Alison M Boyce
BACKGROUND: Scoliosis is a complication of fibrous dysplasia/McCune-Albright syndrome (FD/MAS), however risk factors and long-term outcomes are unknown. Bisphosphonates are commonly used; however, it is unknown whether their use decrease the risk of progressive scoliosis. METHODS: Clinical data from the NIH cohort study was reviewed. Cobb angles were measured, and variables associated with scoliosis progression were identified. RESULTS: Of 138 subjects with available radiographs, 84 (61%) had scoliosis, including 55 (65%) classified as mild (Cobb angle >10 to ≤30°), 11 (13%) as moderate (>30 to ≤45°), and 18 (22%) as severe (>45°)...
April 18, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29660632/female-pfp-patients-present-alterations-in-eccentric-muscle-activity-but-not-the-temporal-order-of-activation-of-the-vastus-lateralis-muscle-during-the-single-leg-triple-hop-test
#10
Marcelo Martins Kalytczak, Paulo Roberto Garcia Lucareli, Amir Curcio Dos Reis, André Serra Bley, Daniela Aparecida Biasotto-Gonzalez, João Carlos Ferrari Correa, Fabiano Politti
This study aimed to compare the concentric and eccentric activity and the temporal order of peak activity of the hip and knee muscles between women with patellofemoral pain (PFP) and healthy women during the single leg triple hop test (SLTHT). Electromyographic (EMG) and Kinematic data were collected from 14 healthy women (CG) and 14 women diagnosed with PFP (PFG) during a single session of the single leg triple hop test. Integral surface electromyography (iEMG) data of the hip and knee muscles in eccentric and concentric phases and the length of time that each muscle needed to reach the maximal peak of muscle activity were calculated...
April 7, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29660545/the-effect-of-packaging-on-consumer-eating-quality-of-beef
#11
R J Polkinghorne, J Philpott, Jessira Perovic, J Lau, L Davies, W Mudannayake, R Watson, G Tarr, J M Thompson
This experiment examined 3 packaging systems: overwrap packaging using oxygen permeable film (OWP); vacuum skin packaging (VSP) and modified atmosphere packaging (MAP, 80%O2 and 20%CO2 ) on consumer sensory. Three primals from 48 carcasses were aged in vacuum packs for 5, 12 or 40 days. Steaks from longissimus lumborum, gluteus medius and psoas major muscles were packed in OWP, VSP and MAP for 9 days. Untrained consumers scored grilled steaks for tenderness, juiciness, liking of flavour and overall acceptability...
April 5, 2018: Meat Science
https://www.readbyqxmd.com/read/29660544/visible-and-near-infrared-spectroscopy-as-an-authentication-tool-preliminary-investigation-of-the-prediction-of-the-ageing-time-of-beef-steaks
#12
Lara Moran, Sonia Andres, Paul Allen, Aidan P Moloney
Visible-near infrared spectroscopy (Vis-NIRS) has been suggested to have potential for authentication of food products. The aim of the present preliminary study was to assess if this technology can be used to authenticate the ageing time (3, 7, 14 and 21 days post mortem) of beef steaks from three different muscles (M. Longissimus thoracis, M. Gluteus medius and M. Semitendinosus). Various mathematical pre-treatments were applied to the spectra to correct scattering and overlapping effects, and then partial least squares-discrimination analysis (PLS-DA) procedures applied...
April 9, 2018: Meat Science
https://www.readbyqxmd.com/read/29659878/retail-stability-of-three-beef-muscles-from-grass-legume-and-feedlot-finished-cattle
#13
J F Legako, T Cramer, K Yardley, T J Murphy, T Gardner, A Chail, L R Pitcher, J W MacAdam
This study aimed to determine the influence of finishing diet on beef appearance and lipid oxidation of three beef muscles. A total of 18 Angus steers were selected from three diet treatments: grass-finished (USUGrass), legume-finished (USUBFT), and grain-finished (USUGrain). After processing, longissimus thoracis (LT), triceps brachii (TB), and gluteus medius (GM) steaks were evaluated over a 7 d display period. A muscle × diet interaction was observed for instrumental lightness (L*) and redness (a*) (P ≤ 0...
April 6, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29625573/long-term-consistency-and-location-specificity-of-equine-gluteus-medius-muscle-activity-during-locomotion-on-the-treadmill
#14
Rebeka R Zsoldos, Anna Voegele, Bjoern Krueger, Ulrike Schroeder, Andreas Weber, Theresia F Licka
BACKGROUND: The equine m. gluteus medius (GM) is the largest muscle of the horse, its main movement function is the extension of the hip joint. The objective of the present study was to measure equine GM activity in three adjacent locations on GM during walk and trot on a treadmill, in order to document potential differences. Fourteen Haflinger mares were measured using surface electromyography and kinematic markers to identify the motion cycles on three occasions over 16 weeks. The electrodes were placed on left and right gluteus medius muscle over the middle of its widest part and 5 cm lateral and medial of it...
April 6, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29622256/editorial-commentary-treatment-of-partial-thickness-undersurface-abductor-tears-of-the-hip-like-backwards-a-bike-riding
#15
EDITORIAL
Derek Ochiai
Partial thickness undersurface abductor tears can be effectively treated with a transtendinous gluteus medius and minimus repair, with decreased pain and improvement in abductor strength. The surgical treatment of this condition runs counter to traditional treatment for "greater trochanteric bursitis," and adoption may be more difficult as a result.
April 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29599693/functional-analysis-of-lower-limbs-in-individuals-infected-with-the-human-immunodeficiency-virus
#16
Gabriel Pádua da Silva, Bruno Ferreira, Selma Siéssere, Isabela Hallak Regalo, Danilo Stefani Esposto, Camila Roza Gonçalves, Veridiana Wanshi Arnoni, Edson Donizetti Verri, Paulo Batista Vasconcelos, Maria Aparecida Carneiro Vasconcelos, Alcyone Artioli Machado, Simone Cecilio Hallak Regalo
Objectives: The objective of this research was to analyze the functional changes of lower limbs by means of surface electromyography in patients with acquired immunodeficiency syndrome. Methods: A total of 60 men and women (age mean of 36.77 ± 9.33 years) were divided into two groups: 30 individuals with human immunodeficiency virus group (HIVG) Subtype 1 and 30 healthy individuals control group. Muscle activity was evaluated using surface electromyography (sEMG)...
March 2018: International Journal of Health Sciences
https://www.readbyqxmd.com/read/29587967/the-gluteal-muscles-in-end-stage-osteoarthritis-of-the-hip-intra-and-interobserver-reliability-and-agreement-of-mri-assessments-of-muscle-atrophy-and-fatty-degeneration
#17
K Kivle, E Lindland, K E Mjaaland, A H Pripp, S Svenningsen, L Nordsletten
AIM: To assess the intra- and interobserver reliability and agreement of muscular atrophy and fatty degeneration of the gluteal muscles on magnetic resonance imaging (MRI) in patients with end-stage osteoarthritis of the hip. MATERIALS AND METHODS: Thirty-nine patients with end-stage osteoarthritis of the hip, who scheduled for hip replacement surgery, were included in the study. The cross-sectional areas of the gluteus medius and minimus muscles were manually circumscribed and automatically calculated, while intramuscular fatty degeneration was assessed using the semi-quantitative classification system of Goutallier...
March 24, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29581655/effect-of-squatting-velocity-on-hip-muscle-latency-in-women-with-patellofemoral-pain-syndrome
#18
Ignacio Orozco-Chavez, Guillermo Mendez-Rebolledo
[Purpose] Neuromuscular activity has been evaluated in patellofemoral pain syndrome but movement velocity has not been considered. The aim was to determine differences in onset latency of hip and knee muscles between individuals with and without patellofemoral pain syndrome during a single leg squat, and whether any differences are dependent on movement velocity. [Subjects and Methods] Twenty-four females with patellofemoral pain syndrome and 24 healthy females participated. Onset latency of gluteus maximus, anterior and posterior gluteus medius, rectus femoris, vastus medialis, vastus lateralis and biceps femoris during a single leg squat at high and low velocity were evaluated...
March 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29578254/muscle-function-deterioration-in-patients-with-haemophilia-prospective-experience-from-costa-rica
#19
A Seuser, M Navarrete-Duran, G Auerswald, M E Mancuso
INTRODUCTION: In haemophilia, recurrent joint bleeds are responsible for the development of chronic joint damage, because blood induces biochemical changes in joint structures. Joint degeneration is a long process, and structural damage is often preceded by joint dysfunction, which is represented by quantitative and qualitative changes in the contraction pattern of muscles around the joints. Muscle function in patients with haemophilia is still poorly investigated. AIM: The aim of this 2-year prospective study was to assess the changes in muscle function of lower limbs in a group of patients affected with haemophilia in San José, Costa Rica...
March 26, 2018: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/29573934/influence-of-muscle-fatty-degeneration-on-functional-outcomes-after-endoscopic-gluteus-medius-repair
#20
Mathieu Thaunat, Gilles Clowez, Antoine Desseaux, Colin G Murphy, Mouhcine Sbiyaa, Eric Noël, Bertrand Sonnery-Cottet
PURPOSE: To report the early outcomes of endoscopic repair of tears of the gluteus medius tendon and to determine whether the fatty degeneration had an influence on clinical results. METHODS: Between October 2012 and June 2014, data were prospectively collected and retrospectively reviewed for all patients who underwent endoscopic gluteus medius repair. Patients were assessed pre- and postoperatively using the modified Harris hip score, the nonarthritic hip score, and visual analog scale for pain...
March 21, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
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