keyword
MENU ▼
Read by QxMD icon Read
search

Quadriceps activation

keyword
https://www.readbyqxmd.com/read/28078435/the-effects-of-therapeutic-exercises-on-pain-muscle-strength-functional-capacity-balance-and-hemodynamic-parameters-in-knee-osteoarthritis-patients-a-randomized-controlled-study-of-supervised-versus-home-exercises
#1
Tuğba Kuru Çolak, Bahar Kavlak, Onur Aydoğdu, Emir Şahin, Gönül Acar, İlkşan Demirbüken, Zübeyir Sarı, İlker Çolak, Güven Bulut, M Gülden Polat
The aim of the study was to compare the effects of low-intensity exercise programs for lower extremities, either supervised or at home, on pain, muscle strength, balance and the hemodynamic parameters of knee osteoarthritis (OA) patients. This randomized study included 78 patients with knee OA in 2 groups of supervised and home-based exercise program. Exercises were applied to the first group in the clinic as a group exercise program and were demonstrated to the second group to be performed at home. Before and after the 6-week exercise program, assessment was made of pain, quadriceps and hamstring muscle strengths, 6-min walk test (6MWT), and non-invasive hemodynamic parameters...
January 11, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28066619/clinical-management-of-chronic-obstructive-pulmonary-disease-patients-with-muscle-dysfunction
#2
REVIEW
Joaquim Gea, Carme Casadevall, Sergi Pascual, Mauricio Orozco-Levi, Esther Barreiro
Muscle dysfunction is frequently observed in chronic obstructive pulmonary disease (COPD) patients, contributing to their exercise limitation and a worsening prognosis. The main factor leading to limb muscle dysfunction is deconditioning, whereas respiratory muscle dysfunction is mostly the result of pulmonary hyperinflation. However, both limb and respiratory muscles are also influenced by other negative factors, including smoking, systemic inflammation, nutritional abnormalities, exacerbations and some drugs...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28060455/self-reported-quality-of-sleep-is-associated-with-physical-strength-among-community-dwelling-young-old-adults
#3
Katarzyna B Malinowska, Tome Ikezoe, Noriaki Ichihashi, Hidenori Arai, Kimihiko Murase, Kazuo Chin, Takahisa Kawaguchi, Yasuharu Tabara, Takeo Nakayama, Fumihiko Matsuda, Tadao Tsuboyama
AIM: The present study examined the association between self-reported quality of sleep (QOS) and physical function in community-dwelling young-old adults. METHODS: This cross-sectional study included 737 community-dwelling older adults aged 60 years and older (498 women, 239 men); age 68.3 ± 5.2 years (range 60-79 years). Participants completed a self-administered questionnaire, which included the Pittsburgh Sleep Quality Index, as well as information regarding sociodemographic characteristics, physical activity, smoking and alcohol consumption...
January 6, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28060035/etiology-and-recovery-of-neuromuscular-fatigue-following-simulated-soccer-match-play
#4
Kevin Thomas, Jack Dent, Glyn Howatson, Stuart Goodall
PURPOSE: We profiled the etiology and recovery of neuromuscular fatigue post-simulated-soccer-match-play. METHODS: Fifteen semi-professional players completed a 90 min simulated soccer match. Pre-, immediately-post and at 24, 48 and 72 h participants completed a battery of neuromuscular, physical and perceptual tests. Perceived fatigue and muscle soreness were assessed via visual analogue scales. Maximum voluntary contraction (MVC) and twitch responses to electrical (femoral nerve) and magnetic (motor cortex) stimulation during isometric knee-extensor contractions and at rest were measured to assess central (voluntary activation, VA) and peripheral (quadriceps potentiated twitch force, Qtw,pot) fatigue, and responses to single and paired-magnetic stimuli were assessed to quantify corticospinal excitability and short-intracortical inhibition (SICI), respectively...
January 3, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28054322/creatine-loading-does-not-preserve-muscle-mass-or-strength-during-leg-immobilization-in-healthy-young-males-a-randomized-controlled-trial
#5
Evelien M P Backx, Roland Hangelbroek, Tim Snijders, Marie-Louise Verscheijden, Lex B Verdijk, Lisette C P G M de Groot, Luc J C van Loon
BACKGROUND: A short period of leg immobilization leads to rapid loss of muscle mass and strength. Creatine supplementation has been shown to increase lean body mass in active individuals and can be used to augment gains in muscle mass and strength during prolonged resistance-type exercise training. OBJECTIVE: Our objective was to investigate whether creatine loading can attenuate the loss of muscle mass and strength during short-term leg immobilization. METHODS: Healthy young men (n = 30; aged 23 ± 1 years; body mass index [BMI] 23...
January 5, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28053820/effects-of-different-concurrent-resistance-and-aerobic-training-frequencies-on-muscle-power-and-muscle-quality-in-trained-elderly-men-a-randomized-clinical-trial
#6
Rodrigo Ferrari, Sandra C Fuchs, Luiz Fernando Martins Kruel, Eduardo Lusa Cadore, Cristine Lima Alberton, Ronei Silveira Pinto, Régis Radaelli, Maira Schoenell, Mikel Izquierdo, Hirofumi Tanaka, Daniel Umpierre
Muscle power is a strong predictor of functional status in the elderly population and is required to perform different daily activities. To compare the effects of different weekly training frequencies on muscle power and muscle quality induced by concurrent training (resistance + aerobic) in previously trained elderly men. Twenty-four trained elderly men (65 ± 4 years), previously engaged in a regular concurrent training program, three times per week, for the previous five months, were randomly allocated to concurrent training programs in which training was performed either twice a week (2·week(-1), n = 12) or three times per week (3·week(-1), n = 12)...
December 2016: Aging and Disease
https://www.readbyqxmd.com/read/28045874/surgical-treatment-for-failure-of-repair-of-patellar-and-quadriceps-tendon-rupture-with-ipsilateral-hamstring-tendon-graft
#7
Nicola Maffulli, Rocco Papalia, Guglielmo Torre, Vincenzo Denaro
Tears of the patellar and quadriceps tendon are common in the active population, especially in athletes. At present, several techniques for surgical repair and reconstruction are available. When reruptures occur, a reconstruction is mandatory. In the present paper, we describe a surgical technique for patellar and quadriceps tendon reconstruction using ipsilateral hamstring autograft. After routine hamstring tendon harvesting, the tendon ends are prepared using a whip stitch. A transverse tunnel is drilled in the midportion of the patella, the hamstring graft is passed through the patella, and firmly secured to the patellar tunnel openings with sutures...
March 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/28040578/analgesia-after-acl-reconstruction-hamstring-donor-site-injection-versus-intra-articular-local-anaesthetic-injection
#8
Bertrand Sonnery-Cottet, Adnan Saithna, Abdul Azeem, Eric Choudja, Jean Baptiste Pic, Julien Cabaton, Mathieu Thaunat
BACKGROUND: The purpose of this study was to compare hamstring donor-site injection versus intra-articular injection of a local anaesthetic for analgesia after anterior cruciate ligament (ACL) reconstruction. HYPOTHESIS: The two methods provide similar pain relief. MATERIAL AND METHODS: 158 consecutive patients undergoing ACL hamstring tendon graft reconstruction (semi-tendinosus/gracilis [STG] or four-stranded semi-tendinosus [ST4]) during two periods in 2015 were included...
December 28, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28038376/lean-muscle-volume-of-the-thigh-has-a-stronger-relationship-with-muscle-power-than-muscle-strength-in-women-with-knee-osteoarthritis
#9
Michael J Davison, Monica R Maly, Peter J Keir, Sandani M Hapuhennedige, Amie T Kron, Jonathan D Adachi, Karen A Beattie
BACKGROUND: Thigh lean muscle and intramuscular fat have been implicated in the impairment of physical function observed in people with knee osteoarthritis. We investigated the relationships of quadriceps and hamstrings intramuscular fat fraction and lean muscle volume with muscle power and strength, controlling for neuromuscular activation, and physical performance in women with knee OA. METHODS: Women (n=20) 55years or older with symptomatic, radiographic knee osteoarthritis underwent a 3...
November 25, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/28028870/neuromuscular-performance-of-maximal-voluntary-explosive-concentric-contractions-is-influenced-by-angular-acceleration
#10
D Hahn, P Bakenecker, F Zinke
Torque production during maximal voluntary explosive contractions is considered to be a functionally more relevant neuromuscular measure than steady-state torque, but little is known about accelerated concentric contractions. This study investigated torque, muscle activity, and fascicle behavior during isometric and fast concentric contractions of quadriceps femoris. Ten participants performed maximal voluntary explosive isometric, isovelocity, and additional concentric knee extensions at angular accelerations ranging from 700 to 4000° s(-2) that resulted in an angular velocity of 300° s(-1) at 40° knee flexion...
December 28, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28025529/anticonvulsant-effects-of-fractions-isolated-from-dinoponera-quadriceps-kempt-ant-venom-formicidae-ponerinae
#11
Diana Aline Morais Ferreira Nôga, Luiz Eduardo Mateus Brandão, Fernanda Carvalho Cagni, Delano Silva, Dina Lilia Oliveira de Azevedo, Arrilton Araújo, Wagner Ferreira Dos Santos, Antonio Miranda, Regina Helena da Silva, Alessandra Mussi Ribeiro
Natural products, sources of new pharmacological substances, have large chemical diversity and architectural complexity. In this context, some toxins obtained from invertebrate venoms have anticonvulsant effects. Epilepsy is a neurological disorder that affects about 65 million people worldwide, and approximately 30% of cases are resistant to pharmacological treatment. Previous studies from our group show that the denatured venom of the ant Dinoponera quadriceps (Kempt) protects mice against bicuculline (BIC)-induced seizures and death...
December 23, 2016: Toxins
https://www.readbyqxmd.com/read/28025376/local-and-generalized-endogenous-pain-modulation-in-healthy-men-effects-of-exercise-and-exercise-induced-muscle-damage
#12
Christopher D Black, Brandon K Tynes, Alexander R Gonglach, Dwight E Waddell
: Isometric exercise has been shown to activate endogenous pain inhibitory pathways in healthy adults, but not in some clinical pain populations. OBJECTIVE:  Exercise-induced muscle damage (EIMD) and the associated delayed-onset muscle soreness (DOMS) are a model for studying clinical pain; thus, our purpose was to examine the effects of isometric exercise on pressure pain threshold (PPT) in the presence and absence of DOMS. METHODS:  Data were collected on 23 males (22...
December 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28009786/low-force-muscle-activity-regulates-energy-expenditure-after-spinal-cord-injury
#13
Jessica R Woelfel, Amy L Kimball, Chu-Ling Yen, Richard K Shields
: Reduced physical activity is a primary risk factor for increased morbidity and mortality, People with spinal cord injury (SCI) have reduced activity for a lifetime, as they cannot volitionally activate affected skeletal muscles. We explored whether low force and low frequency stimulation is a viable strategy to enhance systemic energy expenditure in people with SCI. PURPOSE: To determine the effects of low stimulation frequency (1 Hz, 3 Hz) and stimulation intensity (50 mA and 100 mA) on energy expenditure in people with SCI...
December 22, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28000312/motor-adaptations-to-unilateral-quadriceps-fatigue-during-a-bilateral-pedaling-task
#14
N-P Brøchner Nielsen, F Hug, A Guével, V Fohanno, J Lardy, S Dorel
This study was designed to investigate how motor coordination adapts to unilateral fatigue of the quadriceps during a constant-load bilateral pedaling task. We first hypothesized that this local fatigue would not be compensated within the fatigued muscles leading to a decreased knee extension power. Then, we aimed to determine whether this decrease would be compensated by between-joints compensations within the ipsilateral leg and/or an increased contribution of the contralateral leg. Fifteen healthy volunteers were tested during pedaling at 350 W before and after a fatigue protocol consisting of 15 minutes of electromyostimulation on the quadriceps muscle...
December 20, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27999718/the-effects-of-instrument-assisted-soft-tissue-mobilization-on-lower-extremity-muscle-performance-a-randomized-controlled-trial
#15
Nicole MacDonald, Russell Baker, Scott W Cheatham
BACKGROUND: Instrument-Assisted Soft Tissue Mobilization (IASTM) is a non-invasive therapeutic technique used to theoretically aid in scar tissue breakdown and absorption, fascial mobilization, and improved tissue healing. Researchers have hypothesized that utilizing IASTM will improve muscular efficiency and performance; yet previous Investigations has been focused on treating injury. OBJECTIVE: The purpose of this investigation was to explore the effects of IASTM on muscle performance to assess if typical treatment application affected measures of muscular performance...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27998242/the-effect-of-isolating-the-paretic-limb-on-weight-bearing-distribution-and-emg-activity-during-squats-in-hemiplegic-and-healthy-individuals
#16
Dong-Kyu Lee, Duk-Hyun An, Won-Gyu Yoo, Byong-Yong Hwang, Tae-Ho Kim, Jae-Seop Oh
BACKGROUND: Neural reorganization for movement therapy after a stroke is thought to be an important mechanism that facilitates motor recovery. However, there is a lack of evidence for the effectiveness of exercise programs in improving the lower limbs. OBJECTIVE: We investigated the immediate effect of isolating the paretic limb using different foot positions ((i) foot parallel; both feet parallel, (ii) foot asymmetry; paretic foot backward by 10 cm, and (iii) foot lifting; nonparetic foot lifting by normalization to 25% of knee height) on weight-bearing distribution and electromyography (EMG) of the thigh muscle during squats...
December 21, 2016: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/27992539/kinetics-and-muscle-activity-patterns-during-unweighting-and-reloading-transition-phases-in-running
#17
Patrick Sainton, Caroline Nicol, Jan Cabri, Joëlle Barthèlemy-Montfort, Pascale Chavet
Amongst reduced gravity simulators, the lower body positive pressure (LBPP) treadmill is emerging as an innovative tool for both rehabilitation and fundamental research purposes as it allows running while experiencing reduced vertical ground reaction forces. The appropriate use of such a treadmill requires an improved understanding of the associated neuromechanical changes. This study concentrates on the runner's adjustments to LBPP-induced unweighting and reloading during running. Nine healthy males performed two running series of nine minutes at natural speed...
2016: PloS One
https://www.readbyqxmd.com/read/27992070/exercise-for-haemophilia
#18
REVIEW
Karen Strike, Kathy Mulder, Rojer Michael
BACKGROUND: Haemophilia is a bleeding disorder associated with haemorrhaging into joints and muscles. Exercise is often used to aid recovery after bleeds, and to improve joint function in the presence of arthropathy. OBJECTIVES: Our objective was to systematically review the available evidence on the safety and effectiveness of exercise for people with haemophilia. SEARCH METHODS: We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group's Coagulopathies Trials Register and electronic databases PubMed, OVID-Embase, and CINAHL...
19, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27990242/effect-of-stochastic-modulation-of-inter-pulse-interval-during-stimulated-isokinetic-leg-extension
#19
Efe Anil Aksöz, Marco Laubacher, Stuart Binder-Macleod, Kenneth J Hunt
Recumbent cycling exercise achieved by functional electrical stimulation (FES) of the paralyzed leg muscles is effective for cardiopulmonary and musculoskeletal conditioning after spinal cord injury, but its full potential has not yet been realized. Mechanical power output and efficiency is very low and endurance is limited due to early onset of muscle fatigue. The aim of this work was to compare stochastic modulation of the inter-pulse interval (IPI) to constant-frequency stimulation during an isokinetic leg extension task similar to FES-cycling...
June 13, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/27984691/-iliacus-muscle-injury-caused-by-inadequate-exercise
#20
J Magaña-Reyes, L G Domínguez-Gasca, A García-Luna, L G Domínguez-Carrillo
BACKGROUND: Traumatic iliacus muscle injury is rare; it is usually caused by trauma or intense exercise involving the pelvic girdle; it can produce a hematoma with femoral nerve neuropathy. Spontaneous muscle hematomas occur in patients with coagulation disorders. CLINICAL CASE: A 45-year-old male with 18 days of evolution, with an intense pain in the right buttock, groin and iliac fossa, with an inability for hip flexion and ambulation caused by inadequate exercise (supine double leg lifts)...
May 2016: Acta Ortopédica Mexicana
keyword
keyword
34633
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"