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Strength and conditioning training

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https://www.readbyqxmd.com/read/28641199/influence-of-weight-bearing-visual-feedback-on-movement-symmetry-during-sit-to-stand-task
#1
Sumayeh Abujaber, Federico Pozzi, Joseph Zeni
BACKGROUND: Weight-bearing asymmetry is common in individuals with hip osteoarthritis and after total hip arthroplasty. Including symmetry training to the rehabilitation programs may normalize movement strategies during dynamic tasks. The purpose of this study was to evaluate the immediate influences of real-time visual feedback of weight distribution on the interlimb movement symmetry during the sit-to-stand task, before and after total hip arthroplasty, and to determine whether physical impairments affect the response to visual feedback...
June 8, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28640772/the-effect-of-a-carbohydrate-mouth-rinse-on-upper-body-muscular-strength-and-endurance
#2
James E Dunkin, Shaun M Phillips
Dunkin, JE and Phillips, SM. The effect of a carbohydrate mouth rinse on upper-body muscular strength and endurance. J Strength Cond Res 31(7): 1948-1953, 2017-Carbohydrate (CHO) mouth rinsing rapidly increases corticomotor output and maximal muscle force production, which could enhance muscular strength and endurance during resistance exercise. However, previous research has found no effect of CHO rinsing on muscular strength or endurance. The current study altered the CHO rinse composition and frequency and the muscular endurance test to further investigate the effects of a CHO mouth rinse on upper-body muscular strength and endurance...
July 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28630601/international-society-of-sports-nutrition-position-stand-diets-and-body-composition
#3
REVIEW
Alan A Aragon, Brad J Schoenfeld, Robert Wildman, Susan Kleiner, Trisha VanDusseldorp, Lem Taylor, Conrad P Earnest, Paul J Arciero, Colin Wilborn, Douglas S Kalman, Jeffrey R Stout, Darryn S Willoughby, Bill Campbell, Shawn M Arent, Laurent Bannock, Abbie E Smith-Ryan, Jose Antonio
Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature regarding the effects of diet types (macronutrient composition; eating styles) and their influence on body composition. The ISSN has concluded the following. 1) There is a multitude of diet types and eating styles, whereby numerous subtypes fall under each major dietary archetype. 2) All body composition assessment methods have strengths and limitations. 3) Diets primarily focused on fat loss are driven by a sustained caloric deficit...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28620575/osteoporosis-management-in-ankylosing-spondylitis
#4
Alicia M Hinze, Grant H Louie
Low bone mineral density (BMD) is increasingly recognized as a common comorbid condition in ankylosing spondylitis (AS). As low BMD increases fracture risk, it is important to identify and treat low BMD in patients with AS who have been shown to be at increased risk for fractures above the population normal. Since low BMD occurs early in disease, we screen during the first year of diagnosis with dual energy x-ray absorptiometry (DXA). If patients are found to have osteoporosis by T-score of less than -2.5 or if their Z-score on DXA is more than two standard deviations below the mean, we initiate therapy with bisphosphonates in males and in females who are not planning any future pregnancies...
December 2016: Current Treatment Options in Rheumatology
https://www.readbyqxmd.com/read/28610637/the-effects-of-resistance-training-on-muscle-strength-joint-pain-and-hand-function-in-individuals-with-hand-osteoarthritis-a-systematic-review-and-meta-analysis
#5
Nicoló Edoardo Magni, Peter John McNair, David Andrew Rice
BACKGROUND: Hand osteoarthritis is a common condition characterised by joint pain and muscle weakness. These factors are thought to contribute to ongoing disability. Some evidence exists that resistance training decreases pain, improves muscle strength, and enhances function in people with knee and hip osteoarthritis. However, there is currently a lack of consensus regarding its effectiveness in people with hand osteoarthritis. Therefore, the aim of this systematic review and meta-analysis was to establish whether resistance training in people with hand osteoarthritis increases grip strength, decreases joint pain, and improves hand function...
June 13, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28607221/vastus-lateralis-and-rectus-femoris-echo-intensity-fail-to-reflect-knee-extensor-specific-tension-in-middle-school-boys
#6
Jacob Mota, Matt S Stock, Brennan Thompson
The potential dissociation between muscle strength and size has led to interest in the ability to assess muscle quality across the lifespan. We examined the association between echo intensity and specific tension in middle-school boys. Twenty-five boys participated in this study. Sixteen (mean ± SD age = 12 ± 1 years) engaged in a 16-week after-school strength and conditioning program. Nine boys (12 ± 1 years) served as controls. The program involved two, 90 minute sessions per week of lower-body speed, power, and resistance training...
June 13, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28605232/sensorimotor-control-of-the-shoulder-in-professional-volleyball-players-with-isolated-infraspinatus-muscle-atrophy
#7
Samuele Contemori, Andrea Biscarini, Fabio Massimo Botti, Daniele Busti, Roberto Panichi, Vito Enrico Pettorossi
CONTEXT: Isolated infraspinatus muscle atrophy (IIMA) only affects the hitting shoulder of overhead-activity athletes, and is caused by suprascapular nerve neuropathy. No study has assessed the static and dynamic stability of the shoulder in overhead professional athletes with IIMA to reveal possible shoulder sensorimotor alterations. OBJECTIVE: To assess the shoulder static stability, dynamic stability, and strength in professional volleyball players with IIMA and in healthy control players...
June 12, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28597618/effects-of-resistance-training-overtraining-and-early-specialization-on-youth-athletes
#8
Benjamin K Walters, Connor R Read, A Reed Estes
INTRODUCTION: In 2014, 60 million youth ages 6-18 participated in some form of generalized athletics. 3.5 million children are injured annually participating in organized sport or recreational activities. While sound physical education can decrease the burden of youth sports injuries, the median annual physical education budget of $764 for United States elementary, middle and high schools may not allow enough flexibility to apply evidenced-based guidelines. EVIDENCE ACQUISITION: The topics were selected after a careful review of the 2016 National Strength and Conditioning Association Position Statement on Long-Term Athletic Development...
June 8, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28595855/dissociated-time-course-between-peak-torque-and-total-work-recovery-following-bench-press-training-in-resistance-trained-men
#9
Diogo V Ferreira, Paulo Gentil, João B Ferreira-Junior, Saulo R S Soares, Lee E Brown, Martim Bottaro
OBJECTIVE: To evaluate the time course of peak torque and total work recovery after a resistance training session involving the bench press exercise. DESIGN: Repeated measures with a within subject design. METHODS: Twenty-six resistance-trained men (age: 23.7±3.7years; height: 176.0±5.7cm; mass: 79.65±7.61kg) performed one session involving eight sets of the bench press exercise performed to momentary muscle failure with 2-min rest between sets...
June 7, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28595239/changes-in-sprint-related-outcomes-during-a-period-of-systematic-training-in-a-girls-soccer-academy
#10
Matthew David Wright, Greg Atkinson
Longitudinal data tracking performance indicators collected during structured training are lacking in young female soccer players. Therefore, changes in 5-m acceleration, 20-m speed, change-of-direction speed and repeated-sprint ability were quantified during a three-year period in an FA Centre of Excellence. Fourteen players (mean age = 12.1 years, SD = ±0.9) were recruited and their best performance scores from pre-season and in-season testing were averaged. Players were typically exposed to soccer (2 x 90 min per week) and strength and conditioning training (1 x 70 min per week) and played 20 soccer matches (50-80 min) during 35-week seasons...
June 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28594933/how-reliable-are-the-effects-of-self-control-training-a-re-examination-using-self-report-and-physical-measures
#11
Brian M Lee, Markus Kemmelmeier
In light of recent challenges to the strength model of self-control, our study re-examines the effects of self-control training on established physical and self-report measures of self-control. We also examined whether beliefs about the malleability of self-control qualify any training effects. Participants in the training condition were assigned to increase use of their non-dominant hand for two weeks, and did comply mainly if they held high-malleability beliefs; yet, compared to a control condition, the physical measure of self-control did not improve...
2017: PloS One
https://www.readbyqxmd.com/read/28593094/anodal-transcranial-direct-current-stimulation-tdcs-increases-isometric-strength-of-shoulder-rotators-muscles-in-handball-players
#12
Fuad Ahmad Hazime, Ronaldo Alves da Cunha, Renato Rozenblit Soliaman, Ana Clara Bezerra Romancini, Alberto de Castro Pochini, Benno Ejnisman, Abrahão Fontes Baptista
BACKGROUND: Weakness of the rotator cuff muscles can lead to imbalances in the strength of shoulder external and internal rotators, change the biomechanics of the glenohumeral joint and predispose an athlete to injury. Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that has demonstrated promising results in a variety of health conditions. However few studies addressed its potential approach in the realm of athletics. HYPOTHESIS/PURPOSE: The purpose of this study was to investigate if transcranial direct current stimulation (tDCS) technique increases the isometric muscle strength of shoulder external and internal rotators in handball athletes...
June 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28580720/learned-control-of-inter-hemispheric-connectivity-effects-on-bimanual-motor-performance
#13
Diljit Singh Kajal, Christoph Braun, Jürgen Mellinger, Matthew D Sacchet, Sergio Ruiz, Eberhard Fetz, Niels Birbaumer, Ranganatha Sitaram
Bimanual movements involve the interactions between both primary motor cortices. These interactions are assumed to involve phase-locked oscillatory brain activity referred to as inter-hemispheric functional coupling. So far, inter-hemispheric functional coupling has been investigated as a function of motor performance. These studies report mostly a negative correlation between the performance in motor tasks and the strength of functional coupling. However, correlation might not reflect a causal relationship...
June 5, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28570490/a-review-of-the-biomechanical-differences-between-the-high-bar-and-low-bar-back-squat
#14
Daniel J Glassbrook, Eric R Helms, Scott R Brown, Adam G Storey
The back-squat is a common exercise in strength and conditioning, for a variety of sports. It is widely regarded as a fundamental movement to increase and measure lower-body and trunk function, as well as an effective injury rehabilitation exercise. There are typically two different bar positions used when performing the back-squat; the traditional 'high-bar' back-squat (HBBS) and the 'low-bar' back-squat (LBBS). Different movement strategies are employed to ensure that the center-of-mass remains in the base-of-support for balance during the execution of these lifts...
May 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28569531/social-cognitive-factors-of-long-term-physical-exercise-7-years-after-orthopedic-treatment
#15
Juliane Paech, Sonia Lippke
OBJECTIVE: Although it has been confirmed that physical exercise improves orthopedic conditions, many individuals fail to maintain a regular exercise regimen after being discharged from medical rehabilitation. The present study examines the role of intention, social support, self-determination, planning, and self-efficacy in facilitating strength and endurance training. DESIGN: In a 7-year observational study, intention, received social support and self-determination were assessed at baseline, self-efficacy and planning at 6-month follow-up, and physical exercise at 1-year, 3-year, and 7-year follow-up...
May 2017: Rehabilitation Psychology
https://www.readbyqxmd.com/read/28566806/the-effect-of-the-training-with-the-different-combinations-of-frequency-and-peak-to-peak-vibration-displacement-of-whole-body-vibration-on-the-strength-of-knee-flexors-and-extensors
#16
M Stania, P Król, G Sobota, A Polak, B Bacik, G Juras
Whole-body vibration training has become a popular method used in sports and physiotherapy. The study aimed to evaluate the effect of different vibration frequency and peak-to-peak displacement combinations on men knee flexors and extensors strength in isokinetic conditions. The sample consisted of 49 male subjects randomly allocated to seven comparative groups, six of which exercised on a vibration platform with parameters set individually for the groups. The experimental groups were exposed to vibrations 3 times a week for 4 weeks...
June 2017: Biology of Sport
https://www.readbyqxmd.com/read/28561870/physical-therapist-students-perceptions-from-performing-strength-and-conditioning-training-academic-professional-and-clinical-benefits
#17
Kelly M Meiners, Christina M Wisdom
BACKGROUND: The purpose of this qualitative study was to assess the perceptions of Doctor of Physical Therapy (DPT) students in performing collegiate athletes' strength and conditioning training. METHODS: Four DPT students with the Certified Strength and Conditioning Specialist (CSCS) credential voluntarily provided collegiate athletes strength and conditioning training. Students were interviewed to obtain their perceptions of how the experience impacted performance in DPT school and perceptions of anticipated future benefits...
2017: Journal of Allied Health
https://www.readbyqxmd.com/read/28558445/the-effect-of-beach-volleyball-training-on-muscle-performance-of-indoor-volleyball-players
#18
Dimitrios G Balasas, Kosmas Christoulas, Panagiotis Stefanidis, Efstratios Vamvakoudis, Theodoros M Bampouras
BACKGROUND: Beach volleyball is frequently used as a conditioning activity for indoor volleyball players, but little information exists regarding any performance benefits when transitioning from sand to hard court. The present study examined the effect of 12 weeks beach volleyball training on muscle performance of indoor volleyball players. METHODS: Eleven athletes who completed an indoor volleyball season and were willing to train and compete at beach volleyball, participated in the study...
May 30, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28555550/-implementation-of-telemedicine-in-cape-verde-influencing-factors
#19
Artur Correia, Vanda Azevedo, Luís Velez Lapão
INTRODUCTION: Telemedicine is the provision of health services, where distance is a critical factor, using information and communication technologies. Cape Verde has bet on using this tool to increase access of the population of its islands to specialized care. MATERIAL AND METHODS: Qualitative study, covering the period between 2013 and 2014. It uses document analysis, semi-structured interviews and focus groups to collect data and analysis of content for their analysis...
April 28, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28555125/determinants-of-motion-sickness-in-tilting-trains-coriolis-cross-coupling-stimuli-and-tilt-delay
#20
Giovanni Bertolini, Meek Angela Durmaz, Kim Ferrari, Alexander Küffer, Charlotte Lambert, Dominik Straumann
Faster trains require tilting of the cars to counterbalance the centrifugal forces during curves. Motion sensitive passengers, however, complain of discomfort and overt motion sickness. A recent study comparing different control systems in a tilting train, suggested that the delay of car tilts relative to the curve of the track contributes to motion sickness. Other aspects of the motion stimuli, like the lateral accelerations and the car jitters, differed between the tested conditions and prevented a final conclusion on the role of tilt delay...
2017: Frontiers in Neurology
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