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isokinetic muscle strength

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https://www.readbyqxmd.com/read/30103358/the-effects-of-instrument-assisted-soft-tissue-mobilization-on-active-range-of-motion-functional-fitness-flexibility-and-isokinetic-strength-in-high-school-basketball-players
#1
Hyun-Seung Rhyu, Hyun-Gu Han, Soung-Yob Rhi
Although many studies have focused on stretching techniques for athletes, no comprehensive studies have investigated the use of the instrument-assisted soft tissue mobilization (IASTM) technique in young basketball players. The active properties of muscle and subjective reporting of functional ability were used to identify the effects of IASTM on the calf muscle. Active range of motion (AROM), functional fitness, and isokinetic lower strength in the knees and ankles were measured in 40 healthy young basketball players...
July 28, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/30084072/muscle-profile-and-cognition-in-patients-with-alzheimer-s-disease-dementia
#2
Yeonsil Moon, Ye-Ji Choi, Jin Ok Kim, Seol-Heui Han
INTRODUCTION: Neurodegenerative disease is one of the main contributing factors affecting muscle atrophy. However, this intriguing brain-muscle axis has been explained by the unsubstantial mechanisms. Although there have been several studies that have evaluated the muscle profile and its relation to cognition in patients with dementia, there is still lack of data using standardized methods and only few published studies on Korean populations. The objective of this study is to evaluate the relationship of muscle mass and strength to cognition in patients with Alzheimer's disease dementia (AD)...
August 6, 2018: Neurological Sciences
https://www.readbyqxmd.com/read/30074436/elite-male-field-hockey-players-have-symmetric-isokinetic-glenohumeral-strength-profiles-but-show-asymmetry-in-scapular-muscle-strength
#3
Fran Vanderstukken, Nick Jansen, Tom Mertens, Ann M Cools
Shoulders of elite field hockey players are loaded continuously during play. However, shoulder girdle muscle performance in this population has never been examined yet. This study aimed to compare isokinetic shoulder girdle performance in elite male field hockey players to matched controls, with respect to strength, endurance and muscle balance. The complete male national field hockey team of Belgium (n = 25) was included and matched to a gender- and age-matched control group of healthy participants (n = 25)...
August 3, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/30065859/hip-muscular-strength-balance-is-associated-with-running-economy-in-recreationally-trained-endurance-runners
#4
Wallace A Silva, Claudio Andre B de Lira, Rodrigo L Vancini, Marilia S Andrade
Background: The percentage of sustained maximal oxygen uptake and the running economy are important factors that determine the running success of endurance athletes. Running economy is defined as the oxygen uptake required to run at a given speed and depends on metabolic, cardiorespiratory, biomechanical, neuromuscular, and anthropometric factors. With regard to anthropometric characteristics, total body mass seems to be a crucial factor for the running economy. Moreover, neuromuscular components, especially knee muscular strength and the strength balance ratio, also seem to be critical for the running economy...
2018: PeerJ
https://www.readbyqxmd.com/read/30063556/effects-of-traditional-and-vascular-restricted-strength-training-program-with-equalized-volume-on-isometric-and-dynamic-strength-muscle-thickness-electromyographic-activity-and-endothelial-function-adaptations-in-young-adults
#5
Thiago Rozales Ramis, Carlos Henrique de Lemos Muller, Francesco Pinto Boeno, Bruno Costa Teixeira, Anderson Rech, Marcelo Gava Pompermayer, Niara da Silva Medeiros, Álvaro Reischak de Oliveira, Ronei Silveira Pinto, Jerri Luiz Ribeiro
Ramis, TR, Muller, CHdL, Boeno, FP, Teixeira, BC, Rech, A, Pompermayer, MG, Medeiros, NdS, Oliveira, ÁRd, Pinto, RS, and Ribeiro, JL. Effects of traditional and vascular restricted strength training program with equalized volume on isometric and dynamic strength, muscle thickness, electromyographic activity, and endothelial function adaptations in young adults. J Strength Cond Res XX(X): 000-000, 2018-The purpose of the study was to evaluate and compare the acute and chronic effects of partial vascular occlusion training in young, physically active adults...
July 30, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/30062456/the-hamstring-quadriceps-ratio-is-an-indicator-of-function-in-acl-deficient-but-not-in-acl-reconstructed-knees
#6
Erik Hohmann, Kevin Tetsworth, Vaida Glatt
PURPOSE: The purpose of this study was to investigate the isokinetic, eccentric and isometric hamstring/quadriceps (HQ) ratios in patients before and after ACL reconstruction (ACLR) using bone-patellar tendon grafts and to establish the relationships between HQ ratio and knee function. METHODS: Forty-four patients (mean age of 26.6 years) underwent isokinetic testing of quadriceps and hamstring muscles before and after ACLR and HQ ratios were calculated. Lysholm, IKDC and Cincinnati Scores were used to assess function...
July 30, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/30058184/effects-of-multidisciplinary-therapy-on-physical-function-in-huntington-s-disease
#7
Travis M Cruickshank, Alvaro P Reyes, Luis E Penailillo, Tim Pulverenti, Danielle M Bartlett, Pauline Zaenker, Anthony J Blazevich, Robert U Newton, Jennifer A Thompson, Johnny Lo, Mel R Ziman
OBJECTIVE: The primary objective of this trial was to evaluate the effects of outpatient multidisciplinary therapy, compared to usual care, on measures of physical function and muscle strength in patients with manifest Huntington's disease (HD). METHODS: Twenty-two patients with clinically verified HD were randomized to receive 36 weeks of outpatient multidisciplinary therapy or usual care. Outpatient multidisciplinary therapy comprised 9 months of supervised exercise, cognitive therapy and self-directed home-based exercise...
July 30, 2018: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/30056413/muscle-dysfunction-is-associated-with-poorer-health-related-quality-of-life-in-adults-with-sickle-cell-anaemia
#8
Carlos Eduardo Amaral Gonçalves, Priscila Oliveira Silva, Mauricio Santos Soares, Priscila Santos Bunn, Carla Martins Araujo Lima, Agnaldo José Lopes
BACKGROUND: It is known that episodes of microvascular obstruction and oxidative stress in sickle cell anaemia (SCA) can damage muscle tissue. As a consequence, deterioration in muscle function may potentially contribute to poor health-related quality of life (HRQoL) in subjects with SCA, particularly those who do not use long-term treatment. OBJECTIVES: To evaluate muscle function in adults with SCA, to study the correlations between muscle function and HRQoL and to analyse the impact of hydroxyurea treatment...
July 18, 2018: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/30052519/resistance-exercise-alone-improves-muscle-strength-in-growth-hormone-deficient-males-in-the-transition-phase
#9
Nadia Mohamad Amer, Marilza J Modesto, Cláudia Duarte Dos Santos, Oscar Erichsen, Luis P G Mascarenhas, Suzana Nesi-França, Rosana Marques-Pereira, Luiz De Lacerda
Background During the transition phase (TP), patients with growth hormone deficiency (GHD) exhibit decreased muscle strength. Studies assessing the effects of resistance exercise alone on muscle strength in these individuals are scarce. The objective of this study was to evaluate the effects of a program of resistance exercise (PRE) on parameters of muscle strength in subjects in the TP and with childhood-onset GHD treated with recombinant GH (rGH). Methods Sixteen male patients were enrolled and divided into two groups: GHD (n=9) and GH sufficiency (GHS, n=7)...
July 27, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/30043856/decreased-muscle-strength-is-associated-with-proinflammatory-cytokines-but-not-testosterone-levels-in-men-with-diabetes
#10
J P Ferreira, A M O Leal, F A Vasilceac, C D Sartor, I C N Sacco, A S Soares, T F Salvini
The aim of this study was to compare muscle strength in male subjects with type 2 diabetes mellitus (DM2) with and without low plasma testosterone levels and assess the relationship between muscle strength, testosterone levels, and proinflammatory cytokines. Males (75) aged between 18 and 65 years were divided into 3 groups: control group that did not have diabetes and had a normal testosterone plasma level (>250 ng/dL), DnormalTT group that had DM2 with normal testosterone levels, and the DlowTT group that had DM2 and low plasma testosterone levels (<250 ng/dL)...
July 23, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/30040707/effects-of-instrument-assisted-soft-tissue-mobilization-technique-on-strength-knee-joint-passive-stiffness-and-pain-threshold-in-hamstring-shortness
#11
Do Hyun Kim, Jae Jin Lee, Joshua Sung Hyun You
BACKGROUND: Hamstring shortness is the most common musculoskeletal condition in sports athletes, which often contributes to hamstring strain injury. To effectively mitigate the hamstring shortness, contemporary HR, SCS, and IASTM soft tissue techniques have been used. The best practical evidence about the therapeutic effects and the biomechanical mechanisms underpinning these manual techniques remain unknown. OBJECTIVE: The purpose of this study was to compare the effects of HR, SCS, and IASTM techniques on improving hamstring and quadriceps muscle strength, related ratio, knee joint passive stiffness, and pain threshold...
July 20, 2018: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/30038915/asymptomatic-participants-with-a-femoroacetabular-deformity-demonstrate-stronger-hip-extensors-and-greater-pelvis-mobility-during-the-deep-squat-task
#12
Danilo S Catelli, Erik Kowalski, Paul E Beaulé, Kevin Smit, Mario Lamontagne
Background: Cam-type femoroacetabular impingement (FAI) is a femoral head-neck deformity that causes abnormal contact between the femoral head and acetabular rim, leading to pain. However, some individuals with the deformity do not experience pain and are referred to as having a femoroacetabular deformity (FAD). To date, only a few studies have examined muscle activity in patients with FAI, which were limited to gait, isometric and isokinetic hip flexion, and extension tasks. Purpose: To compare (1) hip muscle strength during isometric contraction and (2) lower limb kinematics and muscle activity of patients with FAI and FAD participants with body mass index-matched healthy controls during a deep squat task...
July 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/30038825/comparison-of-the-back-in-action-test-battery-to-standard-hop-tests-and-isokinetic-knee-dynamometry-in-patients-following-anterior-cruciate-ligament-reconstruction
#13
Jay R Ebert, Peter Edwards, Justine Currie, Anne Smith, Brendan Joss, Timothy Ackland, Jens-Ulrich Buelow, Ben Hewitt
Background: Limb symmetry after anterior cruciate ligament reconstruction may be evaluated using maximal strength and hop tests, which are typically reported using Limb Symmetry Indices (LSIs) which may overestimate function. Purpose: The purpose of this study was to compare the Back in Action (BIA) test battery to standard hop and muscle strength tests used to determine readiness to return to sport (RTS). Study Design: Prospective cohort...
June 2018: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/30032698/bilateral-alterations-in-running-mechanics-and-quadriceps-function-following-unilateral-anterior-cruciate-ligament-reconstruction
#14
Derek N Pamukoff, Melissa M Montgomery, Kevin H Choe, Tyler J Moffit, Steven A Garcia, Michael N Vakula
Study Design Controlled laboratory study; cross-sectional. Background Individuals who have undergone anterior cruciate ligament reconstruction (ACLR) have quadriceps muscle impairments that influence gait mechanics and may contribute to an elevated risk of knee osteoarthritis. Objective To compare running mechanics and quadriceps function between individuals who have undergone ACLR to a control group, and evaluate the association between quadriceps function and running mechanics. Methods Thirty-eight individuals who previously underwent primary unilateral ACLR (mean ± standard deviation time since reconstruction, 48...
July 22, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/30031389/the-effects-of-single-high-dose-or-daily-low-dosage-oral-colecalciferol-treatment-on-vitamin-d-levels-and-muscle-strength-in-postmenopausal-women
#15
Mahmut Apaydin, Asli Gencay Can, Muhammed Kizilgul, Selvihan Beysel, Seyfullah Kan, Mustafa Caliskan, Taner Demirci, Ozgur Ozcelik, Mustafa Ozbek, Erman Cakal
INTRODUCTION: Vitamin D deficiency is a common health problem. Vitamin D supplements are used to improve vitamin D status; however, there are contradictory data related to what doses to give and how often they should be given. Many studies have investigated the effects of vitamin D supplementation on muscle strength, but the results remain controversial. We aimed to compare the effects and safety of single high-dose with daily low-dose oral colecalciferol on 25(OH)D levels and muscle strength in postmenopausal women with vitamin D deficiency or insufficiency...
July 21, 2018: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/30028661/inter-rater-and-test-retest-reliabilities-of-the-isokinetic-measurements-assessing-strength-and-endurance-of-the-trunk-muscles-in-two-different-protocols-for-able-bodied-and-post-stroke-hemiparesis
#16
Michelle Rabelo, Emerson Fachin-Martins
Background Stroke represents the largest cause of chronic disability resulting in muscle weakness and instability in the trunk muscles. Despite the reliable measures from isokinetic devices for upper/lower limb muscles, there is a lack of measures for trunk muscles in post-stroke hemiparesis. Objectives To investigate the reliability of the strength and endurance measures from an isokinetic dynamometer for able-bodied and post-stroke hemiparesis people. Methods The measures were taken from both groups (control/hemiparesis) performing antagonistic movements (flexion/extension) during different protocols (seated-compressed and semi-standing) to assess strength (60º/s) and endurance (120º/s)...
July 20, 2018: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/30025379/scapular-muscles-weakness-in-subjects-with-traumatic-anterior-glenohumeral-instability
#17
Walter Ansanello Netto, Gisele Garcia Zanca, Michele Forgiarini Saccol, Salomão Chade Assan Zatiti, Stela Márcia Mattiello
OBJECTIVE: To investigate possible alterations on scapular muscle strength in subjects with traumatic anterior glenohumeral instability. DESIGN: Cross-sectional study. SETTING: Laboratory setting. PARTICIPANTS: Fifty-two subjects of both sexes: 26 healthy and 26 with traumatic anterior glenohumeral instability. MAIN OUTCOME MEASURES: Subjects performed maximal isometric and concentric isokinetic contractions of shoulder protraction and retraction in scapular and sagittal planes, at slow (12...
July 11, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/30018927/determination-of-the-relationship-between-core-endurance-and-isokinetic-muscle-strength-of-elite-athletes
#18
Tuğba Kocahan, Bihter Akınoğlu
Muscle strength and core endurance are both factors contributing to athletes' performance and prevalence of injuries. There are no studies indicating the relationship between muscle strength around the shoulder and knee joints and core endurance. The aim of our study is to determine the relationship between core endurance and isokinetic muscle strength of knees and shoulders of elite athletes. Seventy-one elite athletes (weight lifting, boxing, taekwondo, biathlon, and ice skating) (age, 18.13±2.9 years) were included in the study...
June 2018: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/30014202/association-of-paraspinal-muscle-water-fat-mri-based-measurements-with-isometric-strength-measurements
#19
Sarah Schlaeger, Stephanie Inhuber, Alexander Rohrmeier, Michael Dieckmeyer, Friedemann Freitag, Elisabeth Klupp, Dominik Weidlich, Georg Feuerriegel, Florian Kreuzpointner, Ansgar Schwirtz, Ernst J Rummeny, Claus Zimmer, Jan S Kirschke, Dimitrios C Karampinos, Thomas Baum
OBJECTIVES: Chemical shift encoding-based water-fat MRI derived proton density fat fraction (PDFF) of the paraspinal muscles has been emerging as a surrogate marker in subjects with sarcopenia, lower back pain, injuries and neuromuscular disorders. The present study investigates the performance of paraspinal muscle PDFF and cross-sectional area (CSA) in predicting isometric muscle strength. METHODS: Twenty-six healthy subjects (57.7% women; age: 30 ± 6 years) underwent 3T axial MRI of the lumbar spine using a six-echo 3D spoiled gradient echo sequence for chemical shift encoding-based water-fat separation...
July 16, 2018: European Radiology
https://www.readbyqxmd.com/read/30009683/alternative-assessment-of-knee-joint-muscle-balance-of-soccer-players-through-total-work-based-hamstring-quadriceps-ratios
#20
Felipe Minozzo, Pedro Lopez, Carlos Leonardo Figueiredo Machado, Eurico Nestor Wilhelm, Rafael Grazioli, Ronei Silveira Pinto
Isokinetic hamstring-to-quadriceps (H:Q) ratios are frequently used to assess knee muscle strength imbalances and risk of injuries/re-injuries. The use of peak torque (PT) or total work (TW) to estimate joint stability may lead to different results because of the differences between these two neuromuscular variables. Thus, the current study aimed to compare the conventional and functional H:Q ratios calculated by PT and TW. Ninety-three male professional soccer players from Brazilian first division teams performed isokinetic concentric and eccentric contractions of the quadriceps and the hamstrings at 60°/s...
July 14, 2018: European Journal of Sport Science
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