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Quadriceps strength

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https://www.readbyqxmd.com/read/29338824/effects-of-preoperative-isokinetic-eccentric-training-and-whey-protein-isolate-supplement-on-quadriceps-strength-and-knee-function-in-patients-with-anterior-cruciate-ligament-rupture
#1
Xiao Yuan Zhang, Hong Shi Huang, Jie Yang, Yuan Yuan Yu, Dong Xia Zhang, Cui Qing Chang
Objective To explore the effect of preoperative isokinetic eccentric training with or not whey protein isolate supplement before operation on lower limb muscle strength and knee function in patients with anterior cruciate ligament (ACL) rupture. Methods A total of 22 male volunteers aged 18-40 years with ACL rupture were recruited in outpatient service. With randomized block design,subjects were randomly assigned to isokinetic eccentric training (IE) group and isokinetic eccentric training with whey protein isolate supplement (IE+WPI) group...
December 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29315348/knee-strength-ratios-in-competitive-female-athletes
#2
Jaroslaw Kabacinski, Michal Murawa, Krzysztof Mackala, Lechoslaw Bogdan Dworak
Knee strength ratios are related to the movement patterns, sport-specific training and knee injuries in athletes. The purpose of this study was to determine the ratios in the concentric isokinetic strength of the hamstrings and quadriceps and the isometric strength of the knee extensors. In female basketball players (n = 14) and female volleyball players (n = 12) were evaluated: the hamstrings to quadriceps peak torque ratio (H/Q) and side-to-side peak torque ratio (TR) for hamstrings and quadriceps; the ratio of the maximal bilateral strength to the summed maximal unilateral strength (B/U) and side-to-side maximal strength ratio (SR) for knee extensors...
2018: PloS One
https://www.readbyqxmd.com/read/29308949/a-comparison-of-two-manual-physical-therapy-approaches-and-electrotherapy-modalities-for-patients-with-knee-osteoarthritis-a-randomized-three-arm-clinical-trial
#3
Ebru Kaya Mutlu, Ersin Ercin, Arzu Razak Ozdıncler, Nadir Ones
A broad spectrum of physical therapy exercise programs provides symptom relief and functional benefit for patients with knee OA. Manual physical therapy, including tailored exercise programs provide relatively higher level benefit that persists to one year. It is currently unknown if there are important differences in the effects of different manual physical therapy techniques for patients with knee OA and there are virtually no studies comparing manual physical therapy and electrotherapy modalities. The aim of the study was to compare long-term results between three treatment groups (mobilization with movements [MWMs], passive joint mobilization [PJM], and electrotherapy) to determine which treatment is most effective in patients with knee OA...
January 8, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29303130/quadriceps-strength-and-anterior-knee-pain-following-tibia-intramedullary-nailing-any-clinical-relationship
#4
O Esan, A O Ojoawo, I C Ikem
INTRODUCTION: Anterior knee pain can be chronic sequelae of intramedullary nailing of the tibia. Several causes have been identified; no single reason can fully explain the occurrence. We, therefore, set out to find the rate of anterior knee pain in our practice and if any relationship exists between the anterior knee pain and extensor muscle strength. METHODOLOGY: A total of 72 knees in 36 patients with no prior history of knee pain, but had unilateral tibiofibular fracture, who had internal fixation with interlocking intramedullary nailing done and were followed up for at least 1 year were recruited into the study...
November 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29299474/improvement-in-hamstring-and-quadriceps-muscle-strength-following-cruciate-retaining-single-radius-total-knee-arthroplasty
#5
Jennifer Kurowicki, Anton Khlopas, Assem A Sultan, Nipun Sodhi, Linsen T Samuel, Morad Chughtai, Martin Roche, Peter M Bonutti, Michael A Mont
Background: The ability to reach full functional capacity following total knee arthroplasty (TKA) is reliant on the strength of the quadriceps and hamstring muscles. Weakness of these muscles can persist anywhere from 1 to 3 years post-operatively. There remains considerable controversy as to what factors influence restoration of muscle strength after TKA. Implant designs have been implicated in the ability of patients to recover. Currently there is a paucity of literature available describing the influence of patient characteristics, surgical factors, and clinical outcomes on quadriceps and hamstring muscle strength following TKA with a cruciate-retaining, single radius (SR) implant...
December 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29284059/spatiotemporal-gait-characteristics-in-patients-with-copd-during-the-gait-real-time-analysis-interactive-lab-based-6-minute-walk-test
#6
Wai-Yan Liu, Martijn A Spruit, Jeannet M Delbressine, Paul J Willems, Frits M E Franssen, Emiel F M Wouters, Kenneth Meijer
BACKGROUND AND AIM: Overground gait assessment is limited by the analysis of multiple strides or both spatiotemporal gait characteristics, while fixed speed treadmill walking restricts natural gait speed variations. The Gait Real-time Analysis Interactive Lab (GRAIL)-based 6-minute walk test (6MWT) enables 3D motion analysis and self-paced treadmill walking, and could provide insight in gait alterations in patients with chronic obstructive pulmonary disease (COPD). The aim of this study is to compare spatiotemporal gait characteristics between patients with COPD and healthy elderly during the GRAIL-based 6MWT...
2017: PloS One
https://www.readbyqxmd.com/read/29283292/morphological-molecular-and-hormonal-adaptations-to-early-morning-versus-afternoon-resistance-training
#7
Milan Sedliak, Michal Zeman, Gabriel Buzgó, Jan Cvecka, Dusan Hamar, Eugen Laczo, Monika Okuliarova, Marian Vanderka, Tomas Kampmiller, Keijo Häkkinen, Juha P Ahtiainen, Juha J Hulmi, Tormod S Nilsen, Håvard Wiig, Truls Raastad
It has been clearly established that maximal force and power is lower in the morning compared to noon or afternoon hours. This morning neuromuscular deficit can be diminished by regularly training in the morning hours. However, there is limited and contradictory information upon hypertrophic adaptations to time-of-day-specific resistance training. Moreover, no cellular or molecular mechanisms related to muscle hypertrophy adaptation have been studied with this respect. Therefore, the present study examined effects of the time-of-day-specific resistance training on muscle hypertrophy, phosphorylation of selected proteins, hormonal concentrations and neuromuscular performance...
December 28, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29282267/stepped-care-approach-for-medial-tibiofemoral-osteoarthritis-streamline-protocol-for-a-randomised-controlled-trial
#8
Sarah Rubia Robbins, Luciano Ricardo S Melo, Hema Urban, Leticia A Deveza, Rebecca Asher, Victoria L Johnson, David J Hunter
INTRODUCTION: Current guidelines recommend tailored interventions to optimise knee osteoarthritis (OA) management. However, models of care still have a 'one size fits all' approach, which is suboptimal as it ignores patient heterogeneity. This study aims to compare a stepped care strategy with standard care for overweight and obese persons with medial tibiofemoral OA. METHODS AND ANALYSIS: Participants will be randomised into two groups (85 each). The intervention will receive a diet and exercise programme for 18 weeks in the first step of the study...
December 26, 2017: BMJ Open
https://www.readbyqxmd.com/read/29278297/association-between-statin-use-and-physical-function-among-community-dwelling-older-japanese-adults
#9
Hisashi Kawai, Kazushige Ihara, Takeshi Kera, Hirohiko Hirano, Yoshinori Fujiwara, Masashi Tanaka, Motonaga Kojima, Shuichi Obuchi
AIM: Statin-associated muscle symptoms (SAMS) are the muscle-related side-effects of statins, but the association between statin use and physical function among community-dwelling older adults is unclear. The objective of the present study was to examine the association between statin use and physical function among community-dwelling older Japanese adults by considering the risk factors of statin-associated muscle symptoms. METHODS: The participants were 1022 community-dwelling older adults aged 65-88 years, who participated in comprehensive health checkups from 2013 to 2015...
December 26, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/29275638/the-therapeutic-role-of-motor-imagery-during-the-acute-phase-after-total-knee-arthroplasty-a-pilot-study
#10
Marcel Moukarzel, Franck Di Rienzo, Jean-Claude Lahoud, Fadi Hoyek, Christian Collet, Aymeric Guillot, Nady Hoyek
PURPOSE: The aim of this study was to measure physical and functional outcomes during the acute postoperative recovery in patients who underwent total knee arthroplasty. Motor imagery has been shown to decrease pain and promote functional recovery after both neurological and peripheral injuries. Yet, whether motor imagery can be included as an adjunct effective method into physical therapy programs following total knee arthroplasty remains a working hypothesis that we aim to test in a pilot study...
December 24, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/29247531/effects-of-acute-phase-intensive-electrical-muscle-stimulation-in-frail-elderly-patients-with-acute-heart-failure-active-ems-rationale-and-protocol-for-a-multicenter-randomized-controlled-trial
#11
Shinya Tanaka, Kentaro Kamiya, Yuya Matsue, Ryusuke Yonezawa, Hiroshi Saito, Nobuaki Hamazaki, Ryota Matsuzawa, Kohei Nozaki, Kazuki Wakaume, Yoshiko Endo, Emi Maekawa, Minako Yamaoka-Tojo, Takaaki Shiono, Takayuki Inomata, Takashi Masuda, Junya Ako
In elderly patients with acute heart failure (AHF), clinical outcome is adversely affected by frailty. Although a number of potentially effective interventions for frailty have been reported, little is known about the effects of rehabilitation programs in frail elderly AHF patients. We postulated that addition of electrical muscle stimulation (EMS), which induces muscle contraction without requiring patient volition, to early rehabilitation would be efficacious in frail elderly AHF patients. The ACTIVE-EMS (Effects of Acute Phase Intensive Electrical Muscle Stimulation in Frail Elderly Patients With AHF; UMIN000019551) trial is a multicenter, randomized controlled trial that will enroll 80 patients from 3 hospitals in Japan...
December 16, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/29237078/determinants-of-peripheral-muscle-strength-and-activity-in-daily-life-in-people-with-bronchiectasis
#12
Anderson Alves de Camargo, Jacqueline C Boldorini, Anne E Holland, Rejane A Silva de Castro, Fernanda de Cordoba Lanza, Rodrigo A Athanazio, Samia Z Rached, Regina Carvalho-Pinto, Alberto Cukier, Rafael Stelmach, Simone Dal Corso
Background: Bronchiectasis is characterized by a progressive structural lung damage, recurrent infections and chronic inflammation which compromise the exertion tolerance, and may have an impact on skeletal muscle function and physical function. Objective: The purpose of this study was to compare peripheral muscle strength, exercise capacity, and physical activity in daily life between participants with bronchiectasis and controls and to investigate the determinants of the peripheral muscle strength and physical activity in daily life in bronchiectasis...
December 9, 2017: Physical Therapy
https://www.readbyqxmd.com/read/29234662/surgical-treatment-of-rectus-femoris-injury-in-soccer-playing-athletes-report-of-two-cases
#13
Leandro Girardi Shimba, Gabriel Carmona Latorre, Alberto de Castro Pochini, Diego Costa Astur, Carlos Vicente Andreoli
Muscle injury is the most common injury during sport practice. It represents 31% of all lesions in soccer, 16% in track and field, 10.4% in rugby, 17.7% in basketball, and between 22% and 46% in American football. The cicatrization with the formation of fibrotic tissue can compromise the muscle function, resulting in a challenging problem for orthopedics. Although conservative treatment presents adequate functional results in the majority of the athletes who have muscle injury, the consequences of treatment failure can be dramatic, possibly compromising the return to sport practice...
November 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/29234562/isokinetic-knee-muscle-strength-profile-in-brazilian-male-soccer-futsal-and-beach-soccer-players-a-cross-sectional-study
#14
Claudio A B de Lira, Naryana C Mascarin, Valentine Z Vargas, Rodrigo L Vancini, Marília S Andrade
Background: Anterior cruciate ligament injury is higher in soccer athletes as compared to athletes of other sports. Risk factors for anterior cruciate ligament injury include low knee hamstring/quadriceps strength ratio and bilateral strength deficits. Purpose: To investigate isokinetic thigh muscles strength, hamstring/quadriceps strength ratio, and bilateral strength comparisons in athletes who participate in professional soccer, futsal, and beach soccer. Study Design: Cross-sectional study...
December 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29233665/eccentric-hamstring-strength-deficit-and-poor-hamstring-to-quadriceps-ratio-are-risk-factors-for-hamstring-strain-injury-in-football-a-prospective-study-of-146-professional-players
#15
Justin W Y Lee, Kam-Ming Mok, Hardaway C K Chan, Patrick S H Yung, Kai-Ming Chan
OBJECTIVES: The purpose of this study was to investigate whether preseason isokinetic strength measures were predictive of future HSI among professional football players. DESIGN: Prospective cohort study, Level of evidence 2. METHODS: A total of 169 professional players participated in a preseason isokinetic strength screening, followed by a 10-month competitive season. Testing protocol included the concentric performance of both knee flexion and extension at 60degs-1 and 240degs-1 and the eccentric performance of the knee flexor at 30degs-1...
December 5, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29232265/the-value-of-preoperative-exercise-and-education-for-patients-undergoing-total-hip-and-knee-arthroplasty-a-systematic-review-and-meta-analysis
#16
Rebecca Moyer, Kathy Ikert, Kristin Long, Jacquelyn Marsh
BACKGROUND: Existing evidence regarding the value of preoperative education and/or exercise (prehabilitation) for patients undergoing total joint replacement is conflicting. The purpose of this study was to conduct an updated, comprehensive systematic review with meta-analyses to determine the longitudinal effects and efficacy of prehabilitation on postoperative outcomes in patients undergoing total hip arthroplasty (THA) or total knee arthroplasty (TKA). METHODS: We searched 11 electronic databases (MEDLINE, AMED, CINAHL, Embase, Scopus, ProQuest, PEDro, SportDiscus, PsycINFO, and Cochrane) from their inception to May 2016 for randomized controlled trials that compared changes in pain, function, strength, anxiety, and hospital length of stay following THA or TKA...
December 12, 2017: JBJS Reviews
https://www.readbyqxmd.com/read/29218768/relationships-between-serum-brain-derived-neurotrophic-factor-concentration-and-parameters-for-health-scores-in-community-dwelling-older-adults
#17
Mitsugu Hachisu, Masahiro Hashizume, Hisashi Kawai, Hirohiko Hirano, Motonaga Kojima, Yoshinori Fujiwara, Shuichi Obuchi, Kazushige Ihara
AIM: Brain-derived neurotrophic factor (BDNF) have been implicated in the progression of neuronal survival, phenotyping differentiation and maintenance of various neurons, as well as neurogenesis. We studied how BDNF affects health parameters of older adults by carrying out a health examination of community-dwelling older adults. METHODS: We measured the serum BDNF concentration of 898 older adults aged 65-84 years who participated in regional health examinations in the Tokyo area and also measured various parameters, such as the thickness of the quadriceps femoris, percentage of body fat, body mass index, grip strength, frequency of walking, and use of sleeping drugs and steroidal anti-inflammatory drugs...
December 8, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/29216898/is-the-relationship-between-increased-knee-muscle-strength-and-improved-physical-function-following-exercise-dependent-on-baseline-physical-function-status
#18
Michelle Hall, Rana S Hinman, Martin van der Esch, Marike van der Leeden, Jessica Kasza, Tim V Wrigley, Ben R Metcalf, Fiona Dobson, Kim L Bennell
BACKGROUND: Clinical guidelines recommend knee muscle strengthening exercises to improve physical function. However, the amount of knee muscle strength increase needed for clinically relevant improvements in physical function is unclear. Understanding how much increase in knee muscle strength is associated with improved physical function could assist clinicians in providing appropriate strength gain targets for their patients in order to optimise outcomes from exercise. The aim of this study was to investigate whether an increase in knee muscle strength is associated with improved self-reported physical function following exercise; and whether the relationship differs according to physical function status at baseline...
December 8, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29216241/discussion-about-different-cut-off-values-of-conventional-hamstring-to-quadriceps-ratio-used-in-hamstring-injury-prediction-among-professional-male-football-players
#19
Monika Grygorowicz, Martyna Michałowska, Tomasz Walczak, Adam Owen, Jakub Krzysztof Grabski, Andrzej Pyda, Tomasz Piontek, Tomasz Kotwicki
OBJECTIVE: To measure the sensitivity and specificity of differences cut-off values for isokinetic Hcon/Qcon ratio in order to improve the capacity to evaluate (retrospectively) the injury of hamstring muscles in professional soccer screened with knee isokinetic tests. DESIGN: Retrospective study. METHODS: Medical and biomechanical data of professional football players playing for the same team for at least one season between 2010 and 2016 were analysed...
2017: PloS One
https://www.readbyqxmd.com/read/29212413/a-lower-extremity-strength-based-profile-of-ncaa-division-i-women-s-basketball-and-gymnastics-athletes-implications-for-knee-joint-injury-risk-assessment
#20
Brennan J Thompson, Curtis S Cazier, Eadric Bressel, Dennis G Dolny
This study aimed to provide a comprehensive strength-based physiological profile of women's NCAA Division I basketball and gymnastic athletes; and to make sport-specific comparisons for various strength characteristics of the knee flexor and extensor muscles. A focus on antagonist muscle balance (hamstrings-to-quadriceps ratios, H:Q) was used to elucidate vulnerabilities in these at-risk female athletes. Fourteen NCAA Division I women's basketball and 13 gymnastics athletes performed strength testing of the knee extensors and flexors...
December 7, 2017: Journal of Sports Sciences
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