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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
#1
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/29231243/neuromuscular-electrical-stimulation-nmes-for-patellofemoral-pain-syndrome
#2
REVIEW
Ana Luiza C Martimbianco, Maria Regina R Torloni, Brenda Ng Andriolo, Gustavo Jm Porfírio, Rachel Riera
BACKGROUND: Patellofemoral pain syndrome, now generally referred to as patellofemoral pain (PFP), is one of the most common orthopaedic disorders, characterised by pain in the anterior or retropatellar knee region. Neuromuscular electrical stimulation (NMES) has been proposed generally as a complementary treatment, associated with other interventions such as exercise, or as a single treatment to increase muscle force, reduce knee pain, and improve function. OBJECTIVES: To assess the effects (benefits and harms) of neuromuscular electrical stimulation for people with patellofemoral pain...
December 12, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29230426/lateral-patellofemoral-ligament-an-anatomic-study
#3
Kalpit N Shah, Steven F DeFroda, James Kristopher Ware, Sarath C Koruprolu, Brett D Owens
Background: Medial instability of the patellofemoral joint is a rare but known phenomenon that may result from an incompetent lateral patellofemoral ligament (LPFL). Surgical reconstruction of the LPFL has been described. However, anatomic details of the ligament have not been the subject of scrutiny. Purpose: To describe the anatomic origin and insertion of the LPFL. Study Design: Descriptive laboratory study. Methods: Ten fresh-frozen, unpaired human cadaveric knees (mean age, 57 years) were dissected to identify the LPFL...
December 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29222689/long-term-quantitative-evaluation-of-muscle-and-bone-wasting-induced-by-botulinum-toxin-in-mice-using-microcomputed-tomography
#4
Hélène Libouban, Claude Guintard, Nicolas Minier, Eric Aguado, Daniel Chappard
Muscle and bone masses are highly correlated and muscles impose large loads on bone. Muscle wasting that accompanies bone loss has been poorly investigated. 21 female mice were spread into seven groups. At day 0, 18 mice received Botulinum toxin (BTX) injection in the quadriceps muscle to induce paralysis of the right hind limb; the left contralateral side was used as control. Mice were sacrificed at 7, 14, 21, 28, 56 and 90 days post-injection. A remaining group was sacrificed at day 0. Trabecular bone volume was determined by microcomputed tomography (microCT) at the distal femur and tibia proximal metaphyses on both sides...
December 8, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/29218768/relationships-between-serum-brain-derived-neurotrophic-factor-concentration-and-parameters-for-health-scores-in-community-dwelling-older-adults
#5
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/29218407/short-vs-long-pulses-for-testing-knee-extensor-neuromuscular-properties-does-it-matter
#6
Caroline Giroux, Boris Roduit, Javier Rodriguez-Falces, Jacques Duchateau, Nicola A Maffiuletti, Nicolas Place
PURPOSE: The present study aimed at comparing knee extensor neuromuscular properties determined with transcutaneous electrical stimulation using two pulse durations before and after a standardized fatigue protocol. METHODS: In the first sub-study, 19 healthy participants (ten women and nine men; 28 ± 5 years) took part to two separate testing sessions involving the characterization of voluntary activation (twitch interpolation technique), muscle contractility (evoked forces by single and paired stimuli), and neuromuscular propagation (M-wave amplitude from vastus lateralis and vastus medialis muscles) obtained at supramaximal intensity with a pulse duration of either 0...
December 7, 2017: European Journal of Applied Physiology
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
#7
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/29216792/quadriceps-muscle-thickness-changes-in-patients-with-aneurysmal-subarachnoid-hemorrhage-during-the-acute-phase
#8
Masafumi Nozoe, Masashi Kanai, Hiroki Kubo, Miki Kobayashi, Miho Yamamoto, Shinichi Shimada, Kyoshi Mase
Background Aneurysmal subarachnoid hemorrhage (aSAH) is a life-threatening condition that often leads to severe disability in relatively young and healthy people. This disability is physical in many aSAH survivors, so muscle dysfunction may be an important factor in the functional level of these patients. Thus, measuring muscle thickness represents a suitable method for determining muscle function in patients with acute aSAH, because the disordered consciousness often experienced during the acute phase causes active movement to be difficult for these patients...
December 8, 2017: Topics in Stroke Rehabilitation
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
#9
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/29215597/application-of-pharmacokinetics-modelling-to-predict-human-exposure-of-a-cationic-liposomal-subunit-antigen-vaccine-system
#10
Raj K S Badhan, Swapnil Khadke, Yvonne Perrie
The pharmacokinetics of a liposomal subunit antigen vaccine system composed of the cationic lipid dimethyldioctadecylammonium bromide (DDA) and the immunostimulatory agent trehalose 6,6-dibehenate (TDB) (8:1 molar ratio) combined with the Ag85B-ESAT-6 (H1) antigen were modelled using mouse in-vivo data. Compartment modelling and physiologically based pharmacokinetics (PBPK) were used to predict the administration site (muscle) and target site (lymph) temporal concentration profiles and factors governing these...
December 7, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/29215200/mir-424-5p-reduces-ribosomal-rna-and-protein-synthesis-in-muscle-wasting
#11
Martin Connolly, Richard Paul, Roser Farre-Garros, Samantha A Natanek, Susannah Bloch, Jen Lee, Jose P Lorenzo, Harnish Patel, Cyrus Cooper, Avan A Sayer, Stephen J Wort, Mark Griffiths, Michael I Polkey, Paul R Kemp
BACKGROUND: A loss of muscle mass occurs as a consequence of a range of chronic and acute diseases as well as in older age. This wasting results from an imbalance of protein synthesis and degradation with a reduction in synthesis and resistance to anabolic stimulation often reported features. Ribosomes are required for protein synthesis, so changes in the control of ribosome synthesis are potential contributors to muscle wasting. MicroRNAs (miRNAs) are known regulators of muscle phenotype and have been shown to modulate components of the protein synthetic pathway...
December 7, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29214748/alterations-in-the-in-vitro-and-in-vivo-regulation-of-muscle-regeneration-in-healthy-ageing-and-the-influence-of-sarcopenia
#12
Joanna Brzeszczyńska, Angelika Meyer, Robin McGregor, Alain Schilb, Simone Degen, Valentina Tadini, Neil Johns, Ramon Langen, Annemie Schols, David J Glass, Ronenn Roubenoff, James A Ross, Kenneth C H Fearon, Carolyn A Greig, Carsten Jacobi
BACKGROUND: Sarcopenia is defined as the age-related loss of skeletal muscle mass and function. While all humans lose muscle with age, 2-5% of elderly adults develop functional consequences (disabilities). The aim of this study was to investigate muscle myogenesis in healthy elderly adults, with or without sarcopenia, compared with middle-aged controls using both in vivo and in vitro approaches to explore potential biomarker or causative molecular pathways associated with sarcopenic versus non-sarcopenic skeletal muscle phenotypes during ageing...
December 6, 2017: Journal of Cachexia, Sarcopenia and Muscle
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
#13
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
https://www.readbyqxmd.com/read/29210775/isometric-exercise-to-reduce-pain-in-patellar-tendinopathy-in-season-is-it-effective-on-the-road
#14
Ebonie Rio, Craig Purdam, Michael Girdwood, Jill Cook
OBJECTIVE: To investigate the effectiveness of an isometric squat exercise using a portable belt, on patellar tendon pain and function, in athletes during their competitive season. DESIGN: Case series with no requirements to change any aspect of games or training. The object of this pragmatic study was to investigate this intervention in addition to "usual management." A control or sham intervention was considered unacceptable to teams. SETTING: In-season...
November 27, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29209807/clinical-relevance-of-active-straight-leg-raising-standing-up-and-walking-after-total-knee-arthroplasty-in-a-cross-sectional-study
#15
Yoshinori Ishii, Hideo Noguchi, Junko Sato, Hana Ishii, Takeshi Yamamoto, Tetsuya Sakurai, Shin-Ichi Toyabe
BACKGROUND: Active straight leg raising (ASLR) is used to assess restoration of the quadriceps muscle immediately after total knee arthroplasty (TKA). This study aimed to (1) compare the times required to accomplish ASLR, standing up, and walking after TKA, and (2) evaluate the correlation between the time required to accomplish ASLR and perioperative patient-related factors. METHODS: This cross-sectional study included 271 patients (335 primary TKAs performed using the conventional medial parapatellar approach)...
December 5, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29209163/voluntary-ambulation-by-upper-limb-triggered-hal%C3%A2-in-patients-with-complete-quadri-paraplegia-due-to-chronic-spinal-cord-injury
#16
Yukiyo Shimizu, Hideki Kadone, Shigeki Kubota, Kenji Suzuki, Tetsuya Abe, Tomoyuki Ueno, Yuichiro Soma, Yoshiyuki Sankai, Yasushi Hada, Masashi Yamazaki
Patients with complete paraplegia after spinal cord injury (SCI) are unable to stand or walk on their own. Standing exercise decreases the risk of decubitus ulcers, osteoporosis, and joint deformities in patients with SCI. Conventional gait training for complete paraplegia requires excessive upper limb usage for weight bearing and is difficult in cases of complete quadriplegia. The purpose of this study was to describe voluntary ambulation triggered by upper limb activity using the Hybrid Assistive Limb® (HAL) in patients with complete quadri/paraplegia after chronic SCI...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29204497/decreased-risk-of-knee-buckling-with-adductor-canal-block-versus-femoral-nerve-block-in-total-knee-arthroplasty-a-retrospective-cohort-study
#17
Ryan R Thacher, Thomas R Hickernell, Matthew J Grosso, Roshan Shah, Herbert J Cooper, Robert Maniker, Anthony Robin Brown, Jeffrey Geller
Background: Femoral nerve (FNB) and adductor canal blocks (ACB) are used in the setting of total knee arthroplasty (TKA), but neither has been demonstrated to be clearly superior. Although dynamometer studies have shown ACBs spare perioperative quadriceps function when compared to FNBs, ACBs have been widely adopted in orthopaedic surgery without significant evidence that they decrease the risk of perioperative falls. Methods: All patients who received single-shot FNB (129 patients) or ACB (150 patients) at our institution for unilateral primary TKA from April 2014 to September 2015 were retrospectively reviewed for perioperative falls or near-falls during physical therapy and inpatient care...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29202270/effects-of-neuromuscular-electrical-stimulation-on-contralateral-quadriceps-function
#18
Thomas Cattagni, Romuald Lepers, Nicola A Maffiuletti
Because maximal voluntary strength of the knee extensor muscles can be facilitated by the concomitant application of neuromuscular electrical stimulation (NMES) to the contralateral homologous muscle, we aimed to determine whether this was associated with an enhanced neural drive to the agonist muscles. A secondary goal of this study was to examine the potential dose-response relationship between NMES intensity and contralateral facilitation. Twelve healthy men (age: 30 ± 7 yr) completed several maximal voluntary contractions (MVC) of the left knee extensors while the right quadriceps received low-intensity NMES (10% MVC), high-intensity NMES (30% MVC) or no NMES...
November 28, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29201821/effects-of-early-combined-eccentric-concentric-versus-concentric-resistance-training-following-total-knee-arthroplasty
#19
Min Ji Suh, Bo Ryun Kim, Sang Rim Kim, Eun Young Han, So Young Lee
Objective: To investigate the effects of early combined eccentric-concentric (ECC-CON) or concentric (CON) resistance training following total knee arthroplasty (TKA). Methods: Patients who underwent a primary TKA were randomly assigned to an ECC-CON group (n=16) or a CON group (n=18). All patients received early, progressive resistance training with five sessions per week for 2 weeks starting 2 weeks after TKA. Isometric knee flexor and extensor strength of the surgical and non-surgical knees, instrumental gait analysis for spatiotemporal parameters, 6-Minute Walk Test (6MWT), Timed Up and Go Test (TUG), Timed Stair Climbing Test (SCT) were used to evaluate performance-based physical function...
October 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29200630/changes-in-lower-limb-muscle-activity-based-on-angle-of-ankle-abduction-during-lunge-exercise
#20
Yoonhee Choi, Sangyong Lee
[Purpose] This study compared the activity of the quadriceps femoris muscle according to the angle of ankle abduction during a lunge exercise. [Subjects and Methods] Fifteen male healthy volunteers participated in the study. All participants performed the lunge exercise with different angles of ankle abduction (0°, 20°, 40°, 60°). The activity of the rectus femoris (RF), vastus lateralis (VL) and vastus medialis oblique (VMO) muscles were recorded for the four angles by using a surface electromyography system...
November 2017: Journal of Physical Therapy Science
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