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Quadriceps strength

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https://www.readbyqxmd.com/read/28919733/cycle-ergometer-and-inspiratory-muscle-training-offer-modest-benefit-compared-with-cycle-ergometer-alone-a-comprehensive-assessment-in-stable-copd-patients
#1
Kai Wang, Guang-Qiao Zeng, Rui Li, Yu-Wen Luo, Mei Wang, Yu-He Hu, Wen-Hui Xu, Lu-Qian Zhou, Rong-Chang Chen, Xin Chen
BACKGROUND: Cycle ergometer training (CET) has been shown to improve exercise performance of the quadriceps muscles in patients with COPD, and inspiratory muscle training (IMT) may improve the pressure-generating capacity of the inspiratory muscles. However, the effects of combined CET and IMT remain unclear and there is a lack of comprehensive assessment. MATERIALS AND METHODS: Eighty-one patients with COPD were randomly allocated to three groups: 28 received 8 weeks of CET + IMT (combined training group), 27 received 8 weeks of CET alone (CET group), and 26 only received 8 weeks of free walking (control group)...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28918506/young-athletes-after-acl-reconstruction-with-quadriceps-strength-asymmetry-at-the-time-of-return-to-sport-demonstrate-decreased-knee-function-1%C3%A2-year-later
#2
Matthew P Ithurburn, Alex R Altenburger, Staci Thomas, Timothy E Hewett, Mark V Paterno, Laura C Schmitt
PURPOSE: Quadriceps femoris (QF) strength deficits at return-to-sport (RTS) after ACL reconstruction (ACLR) contribute to decreased knee function at the same time point. However, the impact of QF strength at RTS on longitudinal function has not been examined. The purpose of this study was to test the hypothesis that young athletes after ACLR with QF strength asymmetry at RTS would demonstrate decreased knee-related function and lower proportions of functional recovery at 1 year post-RTS compared to young athletes following ACLR with nearly symmetric QF strength at RTS...
September 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28916871/strength-and-functional-symmetry-is-associated-with-post-operative-rehabilitation-in-patients-following-anterior-cruciate-ligament-reconstruction
#3
Jay R Ebert, Peter Edwards, Luke Yi, Brendan Joss, Timothy Ackland, Richard Carey-Smith, Jens-Ulrich Buelow, Ben Hewitt
PURPOSE: To investigate strength and functional symmetry during common tests in patients after anterior cruciate ligament reconstruction (ACLR), and its association with post-operative rehabilitation. METHODS: At a median 11.0 months post-surgery (range 10-14), 111 ACLR patients were assessed. A rehabilitation grading tool was employed to evaluate the duration and supervision of rehabilitation, as well as whether structured jumping, landing and agility exercises were undertaken...
September 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28913921/analgesic-efficacy-of-local-infiltration-analgesia-vs-femoral-nerve-block-after-anterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis
#4
REVIEW
K R Kirkham, S Grape, R Martin, E Albrecht
Many published reports consider blockade of the femoral nerve distribution the best available analgesic treatment after anterior cruciate ligament reconstruction. However, some argue that an alternative approach of infiltrating local anaesthetic into the surgical site has similar efficacy. The objectives of this meta-analysis were to compare the analgesic and functional outcomes of both treatments following anterior ligament reconstruction. The primary outcomes were pain scores at rest (analogue scale, 0-10) in the early (0-2 postoperative hours), intermediate (3-12 hours) and late postoperative periods (13-24 hours)...
September 15, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28899822/early-strength-recovery-after-anterior-cruciate-ligament-reconstruction-using-the-fascia-lata
#5
Gregory Haillotte, Alexandre Hardy, Benjamin Granger, Thibaut Noailles, Fréderic Khiami
INTRODUCTION: After undergoing anterior cruciate ligament (ACL) reconstruction, patients must recover at least 80% of their hamstring and quadriceps strength to be able to return to sports without risk to the graft. Harvesting of the patellar tendon leads to large deficits in quadriceps strength, while harvesting the hamstring tendons leads to large deficits in hamstring strength. However, there are no published studies on the strength deficit after ACL reconstruction with the fascia lata...
September 9, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28888715/acute-traumatic-rupture-of-the-patellar-tendon-in-pediatric-population-case-series-and-review-of-the-literature
#6
Mohamed Abdelhamid Ali Yousef, Scott Rosenfeld
BACKGROUND: Intact knee extensor mechanism is required for the normal function of the lower extremity. Patellar tendon rupture is a relatively rare injury with peak age incidence around 40 years and usually occurs midsubstance. The occurrence of pure patellar tendon rupture without bony avulsion is an extremely rare injury in the pediatric population with few cases reported in the literature with limited information regarding frequency, complications, and outcomes in children. However, due to increased participation in sports and high-energy recreational activities during childhood, the frequency of such injuries has progressively increased...
September 1, 2017: Injury
https://www.readbyqxmd.com/read/28883721/determinants-of-each-domain-of-the-short-physical-performance-battery-in-copd
#7
Roberto Bernabeu-Mora, Luz M Giménez-Giménez, Joaquina Montilla-Herrador, Gloria García-Guillamón, José Antonio García-Vidal, Francesc Medina-Mirapeix
BACKGROUND: The Short Physical Performance Battery (SPPB) is an assessment tool with good prognostic value in COPD. It includes the following: standing balance, 4 m gait speed test (4MGS), and the timed five-repetition sit-to-stand test (5STS). The specific differences in determinants between these three tasks have not been adequately characterized in COPD patients. We aimed to identify health-related, functional, and psychological determinants of each SPPB test. METHODS: We conducted a cross-sectional analysis of 137 patients with stable COPD...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28875045/the-training-effect-of-early-intervention-with-a-hybrid-assistive-limb-after-total-knee-arthroplasty
#8
Takashi Fukaya, Hirotaka Mutsuzaki, Kenichi Yoshikawa, Ayumu Sano, Masafumi Mizukami, Masashi Yamazaki
After total knee arthroplasty (TKA), it is important for patients to show early improvements in knee joint function and walking to regain independence in performing the activities of daily life. We conducted for 4 weeks an intervention one week after TKA using a hybrid assistive limb (HAL: unilateral leg type) as an exoskeleton robotic device to facilitate knee joint function and walking. The intervention improved the range of knee extension movement safely and without pain compared to preoperation. In addition, we found that training with the HAL improved walking ability, speed, and rate, as well as the time taken to perform the timed up and go (TUG) test compared to preoperation...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28870143/characteristics-and-outcome-of-patellofemoral-pain-in-adolescents-do-they-differ-from-adults
#9
Marienke van Middelkoop, Rianne A van der Heijden, Sita M A Bierma-Zeinstra
Study Design Case-series with one-year follow-up. Background Most of the recommendations on the diagnosis, treatment, and prognosis of patellofemoral pain (PFP) are based on research performed in adults. The literature suggest potential differences between adolescent and adults with PFP. Objectives To investigate differences in characteristics, symptoms, and prognosis at 1-year follow-up, between adolescents and adults with PFP. Methods Data from 64 patients with PFP at baseline and one-year follow-up were used...
September 4, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28869430/increased-intrinsic-stiffness-and-mineralization-in-femurs-of-adult-rats-after-high-intensity-treadmill-running-training
#10
Clarisa Bozzini, Ginés Viscor, Juan C Ríos Kristjánsson, Emilio Picasso, Graciela Champin, Rosa M Alippi, Carlos E Bozzini
BACKGROUND: Physical activity plays a tremendous role in determining bone mechanical behavior, which is superimposed to gravidity. OBJECTIVE: Compare the geometric and material responses of the rat femur to a high intensity treadmill running training of a relatively short duration, as assessed by 3-point mechanical test. METHODS: Mature male rats (180.0 ± 30 g) were assigned (7 rats/group) to no exercise (NE) or treadmill exercise (EX)...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28869185/gait-variability-and-motor-control-in-patients-with-knee-osteoarthritis-as-measured-by-the-uncontrolled-manifold-technique
#11
Gwenllian Fflur Tawy, Philip Rowe, Leela Biant
Knee osteoarthritis (OA) causes pain, reduced muscular strength and stiffness of the affected joint. In response, the motor control mechanism is altered, potentially compromising stability during acts of daily living. Reduced walking stability can be quantified in terms of gait variability. This study therefore aimed to identify and quantify the effects of knee arthritis on gait variability. Fifty adults (25 males/25 females) with end-stage OA of the knee sufficiently symptomatic to require joint replacement, walked on a self-paced treadmill for 2min...
August 18, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28869119/does-home-based-pulmonary-rehabilitation-improve-functional-capacity-peripheral-muscle-strength-and-quality-of-life-in-patients-with-bronchiectasis-compared-to-standard-care
#12
Anderson José, Anne E Holland, Cristiane S de Oliveira, Jessyca P R Selman, Rejane A S de Castro, Rodrigo A Athanazio, Samia Z Rached, Alberto Cukier, Rafael Stelmach, Simone Dal Corso
BACKGROUND: Home-based pulmonary rehabilitation is a promising intervention that may help patients to overcome the barriers to undergoing pulmonary rehabilitation. However, home-based pulmonary rehabilitation has not yet been investigated in patients with bronchiectasis. OBJECTIVES: To investigate the effects of home-based pulmonary rehabilitation in patients with bronchiectasis. METHODS: An open-label, randomized controlled trial with 48 adult patients with bronchiectasis will be conducted...
August 19, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28869034/plasticity-and-function-of-human-skeletal-muscle-in-relation-to-disuse-and-rehabilitation-influence-of-ageing-and-surgery
#13
Charlotte Suetta
In order to study the influence of disuse and aging on skeletal muscle homeostasis, different human models were employed. Effects of chronic disuse were investigated in elderly patients suffering from uni-lateral hip-osteoarthritis, whereas the effect of short-term disuse (4 and 14 days of unilateral lower limb immobilisation) was assessed in healthy young and old individuals. In summary, chronic muscle disuse in the elderly was associated with marked quantitative as well as qualitative neuromuscular impairments...
August 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28866643/influence-of-muscle-mass-in-the-assessment-of-lower-limb-strength-in-copd-validation-of-the-prediction-equation
#14
Ruth Trethewey, Dale Esliger, Emily Petherick, Rachael Evans, Neil Greening, Benjamin James, Andrew Kingsnorth, Mike Morgan, Mark Orme, Lauren Sherar, Sally Singh, Nicole Toms, Michael Steiner
Absence of established reference values limits application of quadriceps maximal voluntary contraction (QMVC) measurement. The impact of muscle mass inclusion in predictions is unclear. Prediction equations encompassing gender, age and size with (FFM+) and without (FFM-), derived in healthy adults (n=175), are presented and compared in two COPD cohorts recruited from primary care (COPD-PC, n=112) and a complex care COPD clinic (COPD-CC, n=189). Explained variance was comparable between the prediction models (R2: FFM+: 0...
September 2, 2017: Thorax
https://www.readbyqxmd.com/read/28864244/performance-on-a-clinical-quadriceps-activation-battery-is-related-to-a-laboratory-measure-of-activation-and-recovery-after-total-knee-arthroplasty
#15
Michael Bade, Tamara Struessel, Roger Paxton, Joshua Winters, Carol Baym, Jennifer Stevens-Lapsley
OBJECTIVE: To determine the relationship between performance on a clinical quadriceps activation battery (QAB) with 1) activation measured by doublet interpolation and 2) recovery of quadriceps strength and functional performance following total knee arthroplasty (TKA). DESIGN: This was a planned secondary analysis of a randomized controlled trial SETTING: University research laboratory PARTICIPANTS: One hundred sixty-two patients (aged 63 ± 7 (mean ± sd) years; 89 females) undergoing TKA participated...
August 29, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28861197/comparison-of-the-effect-of-continuous-femoral-nerve-block-and-adductor-canal-block-after-primary-total-knee-arthroplasty
#16
Seung Suk Seo, Ok Gul Kim, Jin Hyeok Seo, Do Hoon Kim, Youn Gu Kim, Beyoung Yun Park
BACKGROUND: This study aimed to compare the effects of femoral nerve block and adductor canal block on postoperative pain, quadriceps strength, and walking ability after primary total knee arthroplasty. METHODS: Between November 2014 and February 2015, 60 patients underwent primary total knee arthroplasty. Thirty patients received femoral nerve block and the other 30 received adductor canal block for postoperative pain control. Before spinal anesthesia, the patients received nerve block via a catheter (20 mL 0...
September 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28846654/can-magnesium-enhance-exercise-performance
#17
REVIEW
Yijia Zhang, Pengcheng Xun, Ru Wang, Lijuan Mao, Ka He
Magnesium (Mg) is an essential mineral that plays a critical role in the human body. It takes part in the process of energy metabolism and assists the maintenance of normal muscle function. A number of studies evaluated the association between Mg status/supplementation and exercise performance and found that the need for Mg increased as individuals' physical activity level went up. Animal studies indicated that Mg might improve exercise performance via enhancing glucose availability in the brain, muscle and blood; and reducing/delaying lactate accumulation in the muscle...
August 28, 2017: Nutrients
https://www.readbyqxmd.com/read/28841667/the-effects-of-d-aspartic-acid-supplementation-in-resistance-trained-men-over-a-three-month-training-period-a-randomised-controlled-trial
#18
Geoffrey W Melville, Jason C Siegler, Paul W M Marshall
CONTEXT: Research on d-aspartic acid (DAA) has demonstrated increases in total testosterone levels in untrained men, however research in resistance-trained men demonstrated no changes, and reductions in testosterone levels. The long-term consequences of DAA in a resistance trained population are currently unknown. OBJECTIVE: To evaluate the effectiveness of DAA to alter basal testosterone levels over 3 months of resistance training in resistance-trained men. DESIGN: Randomised, double-blind, placebo controlled trial in healthy resistance-trained men, aged 18-36, had been performing regular resistance training exercise for at least 3 d...
2017: PloS One
https://www.readbyqxmd.com/read/28840325/tunnel-widening-after-single-versus-double-bundle-anterior-cruciate-ligament-reconstruction-a-randomized-8-year-follow-up-study
#19
S Beyaz, Ü Ö Güler, Ş Demir, S Yüksel, B M Çınar, G Özkoç, S Akpınar
OBJECTIVE: The purpose of this study was to compare the single-bundle (SB) and double-bundle (DB) surgical techniques for anterior cruciate ligament (ACL) reconstruction with regard to tunnel widening, isokinetic muscle strength, and clinical outcomes over an 8-year follow-up period. METHODS: This study included 31 patients with ACL injury who underwent ACL reconstruction via the SB (n = 16) or the DB (n = 15) technique. Isokinetic and concentric strength measurements of the quadriceps and hamstring muscles were conducted at postoperative 6 months and postoperative 8 years, and 3D-CT scans of the knee joints were performed on the 2nd, 3rd and 6th month, and the 8th year postoperatively...
August 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28835759/associated-factors-of-bone-mineral-density-and-osteoporosis-in-elderly-males
#20
Behzad Heidari, Abdollah Muhammadi, Yahya Javadian, Ali Bijani, Reza Hosseini, Mansour Babaei
BACKGROUND: Low bone mineral density and osteoporosis is prevalent in elderly subjects. This study aimed to determine the associated factors of bone mineral density and osteoporosis in elderly males. METHODS: All participants of the Amirkola health and ageing project cohort aged 60 years and older entered the study. Bone mineral density at femoral neck and lumbar spine was assessed by the dual energy X-ray absorptiometry (DXA) method. Osteoporosis was diagnosed by the international society for clinical densitometry criteria and the association of bone mineral density and osteoporosis with several clinical, demographic and biochemical parameters...
January 2017: International Journal of Endocrinology and Metabolism
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