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https://www.readbyqxmd.com/read/28060927/acute-effects-of-three-neuromuscular-warm-up-strategies-on-several-physical-performance-measures-in-football-players
#1
Francisco Ayala, Ana Calderón-López, Juan Carlos Delgado-Gosálbez, Sergio Parra-Sánchez, Carlos Pomares-Noguera, Sergio Hernández-Sánchez, Alejandro López-Valenciano, Mark De Ste Croix
No studies have analysed the acute effects of the FIFA 11+ and Harmoknee warm-up programmes on major physical performance measures. The aim of this study was to analyse the acute (post-exercise) effects of the FIFA 11+, Harmoknee and dynamic warm-up routines on several physical performance measures in amateur football players. A randomized, crossover and counterbalanced study design was used to address the purpose of this study. A total of sixteen amateur football players completed the following protocols in a randomized order on separate days: a) FIFA 11+; b) Harmoknee; and c) dynamic warm-up (DWU)...
2017: PloS One
https://www.readbyqxmd.com/read/28049777/preparing-fission-yeast-for-electron-microscopy
#2
Thomas H Giddings, Mary K Morphew, J Richard McIntosh
Freezing samples while simultaneously subjecting them to a rapid increase in pressure, which inhibits ice crystal formation, is a reliable method for cryofixing fission yeast. The procedure consists simply of harvesting cells and loading them into a high-pressure freezer (HPF), and then operating the device. If equipment for high-pressure freezing is not available, fission yeast can be frozen by plunging a monolayer of cells into a liquid cryogen, usually ethane or propane. Unlike the HPF, where relatively large volumes of cells can be frozen in a single run, plunge freezing requires cells to be dispersed in a layer <20 µm thick...
January 3, 2017: Cold Spring Harbor Protocols
https://www.readbyqxmd.com/read/28047918/su-f-t-464-development-of-a-secondary-check-procedure-to-evaluated-flatness-and-symmetry-discrepancies-detected-during-daily-morning-qa
#3
M Wagar, S Friesen, Y Lyatskaya, D O'Farrell, M Bhagwat
PURPOSE: A daily QA device is used to monitor output, flatness and symmetry constancy for all linac photon and electron energies. If large deviations from baseline in flatness or symmetry are reported it becomes necessary to crosscheck the measurements with a second device. Setting up another device such as Matrixx (IBA Dosimetry) can be time consuming, due to its warm-up time, and trained personnel may not be readily available to analyze the results. Furthermore, this discrepancy is frequently isolated to a single energy...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047649/su-g-jep1-04-characterization-of-a-high-definition-optical-patient-surface-tracking-system-across-five-installations
#4
T Smith, A Ayan, E Cochran, J Woollard, N Gupta
PURPOSE: To assess the performance of Varian's real-time, Optical Surface Monitoring System (OSMS) by measuring relative regular and irregular surface detection accuracy in 6 degrees of motion (6DoM), across multiple installations. METHODS: Varian's Intracranial SRS Package includes OSMS, which utilizes 3 HD camera/projector pods to map a patient surface, track intra-fraction motion, and gate the treatment beam if motion exceeds a threshold. To evaluate motion-detection accuracy of OSMS, we recorded shifts of a cube-shaped phantom on a single Varian TrueBeam linear accelerator as known displacements were performed incrementally across 6DoM...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042403/comparison-of-the-effect-of-stretching-exercises-and-mefenamic-acid-on-the-reduction-of-pain-and-menstruation-characteristics-in-primary-dysmenorrhea-a-randomized-clinical-trial
#5
Narges Motahari-Tabari, Marjan Ahmad Shirvani, Abbas Alipour
OBJECTIVES: Dysmenorrhea is a common gynecologic disorder. Although non-steroidal anti-inflammatory drugs are commonly used, due to their side effects and lack of response in some individuals, other approaches such as exercise have been considered. This study compared the effect of stretching exercises and mefenamic acid on the reduction of pain and menstruation characteristics in primary dysmenorrhea. METHODS: In this randomized clinical trial, 122 female students with moderate to severe dysmenorrhea were assessed and were placed in either the exercise or mefenamic acid group...
January 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/28032029/evaluation-and-treatment-of-internal-impingement-of-the-shoulder-in-overhead-athletes
#6
REVIEW
Keith T Corpus, Christopher L Camp, David M Dines, David W Altchek, Joshua S Dines
One of the most common pathologic processes seen in overhead throwing athletes is posterior shoulder pain resulting from internal impingement. "Internal impingement" is a term used to describe a constellation of symptoms which result from the greater tuberosity of the humerus and the articular surface of the rotator cuff abutting the posterosuperior glenoid when the shoulder is in an abducted and externally rotated position. The pathophysiology in symptomatic internal impingement is multifactorial, involving physiologic shoulder remodeling, posterior capsular contracture, and scapular dyskinesis...
December 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28031755/performance-effects-of-repetition-specific-gluteal-activation-protocols-on-acceleration-in-male-rugby-union-players
#7
Lorna Barry, Ian Kenny, Thomas Comyns
Warm-up protocols have the potential to cause an acute enhancement of dynamic sprinting performance. The purpose of this study was to evaluate the effects of three repetition specific gluteal activation warm-up protocols on acceleration performance in male rugby union players. Forty male academy rugby union players were randomly assigned to one of 4 groups (control, 5, 10 or 15 repetition gluteal activation group) and performed 10 m sprints at baseline and 30 s, 2, 4, 6 and 8 min after their specific intervention protocol...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/27999719/immediate-effects-of-deep-trunk-muscle-training-on-swimming-start-performance
#8
Satoshi Iizuka, Atsushi Imai, Keisuke Koizumi, Keisuke Okuno, Koji Kaneoka
BACKGROUND: In recent years, deep trunk muscle training has been adopted in various sports, including swimming. This is performed both in everyday training and as part of the warm-up routine before competitive races. It is suggested that trunk stabilization exercises are effective in preventing injury, and aid in improving performance. However, conclusive evidence of the same is yet to be obtained. The time of start phase of swimming is a factor that can significantly influence competition performance in a swimming race...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27999718/the-effects-of-instrument-assisted-soft-tissue-mobilization-on-lower-extremity-muscle-performance-a-randomized-controlled-trial
#9
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/27996694/no-effect-of-acute-and-chronic-supramaximal-exercise-on-circulating-levels-of-the-myokine-sparc
#10
Preeyaphorn Songsorn, José Ruffino, Niels B J Vollaard
Myokines may play a role in the health benefits of regular physical activity. Secreted protein acidic rich in cysteine (SPARC) is a pleiotropic myokine that has been shown to be released into the bloodstream by skeletal muscle in response to aerobic exercise. As there is evidence suggesting that SPARC release may be linked to glycogen breakdown and activation of 5' adenosine monophosphate-activated protein kinase, we hypothesised that brief supramaximal exercise may also be associated with increased serum SPARC levels...
December 20, 2016: European Journal of Sport Science
https://www.readbyqxmd.com/read/27990219/acute-effects-of-walking-with-nordic-poles-in-persons-with-mild-to-moderate-low-back-pain
#11
Landon P Revord, Karen V Lomond, Peter V Loubert, Roger L Hammer
Regular walking with or without Nordic poles is effective over time at reducing discomfort in individuals with chronic low back pain (LBP). Nordic pole use increases balance and stability, distributes weight through the arms and torso, and decreases loading of the spine and lower limbs. The purpose of this study was to determine if Nordic poles would reduce perceived acute discomfort while self-paced walking in individuals with LBP. We also examined whether walking with or without poles increased heart rate (HR) and ratings of perceived exertion (RPE) or speed of movement...
2016: International Journal of Exercise Science
https://www.readbyqxmd.com/read/27980249/the-practice-of-active-rest-by-workplace-units-improves-personal-relationships-mental-health-and-physical-activity-among-workers
#12
Ryoma Michishita, Ying Jiang, Daisuke Ariyoshi, Marie Yoshida, Hideko Moriyama, Hiroshi Yamato
AIM: This study was designed to clarify the effects of active rest, with a focus on the practice of short-time group exercise by workplace units, on personal relationships, mental health, physical activity, and work ability among workers. METHODS: Fifty-nine white-collar workers (40 males and 19 females) performed our active rest (short-time exercise) program, which consists of warm-up, cognitive functional training, aerobic exercise, resistance training and cool-down for 10 minutes per day, 3 times per week during their lunch breaks for 10 weeks...
December 15, 2016: Journal of Occupational Health
https://www.readbyqxmd.com/read/27979361/-warming-up-with-endotrainer-prior-to-laparoscopic-cholecystectomy
#13
Alicia Troncoso-Bacelis, Jaime Soto-Amaro, Carlos Ramírez-Velázquez
BACKGROUND: Laparoscopic cholecystectomy is a safe and effective treatment and remains the gold standard in patients with benign disease. However it presents difficulties such as: the limited movement range of the instruments, the loss of depth perception, haptic feedback and the fulcrum effect. Previous training can optimize surgical performance in patients to master basic skills. OBJECTIVE: Assess the effectiveness of surgeons warming up with an endotrainer before performing laparoscopic cholecystectomy...
December 12, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/27967282/whole-body-vibration-increases-subsequent-sprint-performance-in-well-trained-cyclists
#14
Bent R Rønnestad, Gunnar Slettaløkken Falch, Stian Ellefsen
PURPOSE: Postactivation potentiation (PAP) exercise with added whole-body vibration (WBV) has been suggested as a potential way to acutely improve sprint performance. In cycling, there are many competitions and situations where sprinting abilities are important. In the present study we investigated the effect of adding WBV to warm-up procedures on subsequent cycle sprint performance. METHODS: Eleven well-trained cyclists participated in the study. All cyclists performed a familiarization session before two separate test sessions in randomized order...
December 14, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27939120/aerobic-exercise-as-a-warm-up-for-singing-acoustic-impacts
#15
Monica A McHenry, Joseph Evans
OBJECTIVES: In a previous work, it was found that a 30-minute aerobic workout significantly increased singers' sound pressure level and airflow during voicing, suggesting a shift to flow phonation. This companion study was designed to assess the impact of the same workout on pitch accuracy, vibrato rate, extent and regularity, and the singing power ratio. STUDY DESIGN: This study is a cohort experimental study. METHODS: Twenty-two students in an academic vocal performance program participated...
December 6, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27930451/postexercise-hypotension-is-volume-dependent-in-hypertensives-autonomic-and-forearm-blood-responses
#16
Aline de Freitas Brito, Maria do Socorro Brasileiro Santos, Caio Victor Coutinho de Oliveira, Amilton da Cruz Santos
The purpose of this study was to investigate the short-term effect of kettlebell swings (KBSs) on lumbopelvic pressure pain thresholds (PPTs) in healthy adults. Sixty participants (male=23, female=37, mean age=25.12 years ±2.86, height=170.73 cm ± 9.2, mass=70.49 kg ± 13.32) were randomized into one of two groups. The experimental group performed a warm-up followed by eight consecutive 20-second rounds of KBS with 10-second rest periods. The control group performed the warm-up alone. An evaluator blinded to group assignment, assessed PPTs immediately before and after the intervention using a handheld pressure algometer...
November 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27930448/the-short-term-effect-of-kettlebell-swings-on-lumbopelvic-pressure-pain-thresholds-a-randomized-controlled-trial
#17
Brandon M Keilman, William J Hanney, Morey J Kolber, Patrick S Pabian, Paul A Salamh, Carey E Rothschild, Xinliang Liu
The purpose of this study was to investigate the short-term effect of kettlebell swings (KBSs) on lumbopelvic pressure pain thresholds (PPTs) in healthy adults. Sixty participants (male=23, female=37, mean age=25.12 years ±2.86, height=170.73 cm ± 9.2, mass=70.49 kg ± 13.32) were randomized into one of two groups. The experimental group performed a warm-up followed by eight consecutive 20-second rounds of KBS with 10-second rest periods. The control group performed the warm-up alone. An evaluator blinded to group assignment, assessed PPTs immediately before and after the intervention using a handheld pressure algometer...
November 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27929025/glaciology-antarctica-warmed-up-fast-in-the-past
#18
(no author information available yet)
No abstract text is available yet for this article.
December 7, 2016: Nature
https://www.readbyqxmd.com/read/27928212/relationship-between-autonomic-markers-of-heart-rate-and-subjective-indicators-of-recovery-status-in-male-elite-badminton-players
#19
Christo A Bisschoff, Ben Coetzee, Michael R Esco
The primary aim of the study was to determine if heart rate variability (HRV), and heart rate recovery (HRR) are related to several subjective indicators of recovery status (muscle soreness, hydration status, sleep quality and quantity as well as pre-competition mood states) for different match periods in male, elite, African, singles badminton players. HRV and HRR were measured in twenty-two badminton players before (pre-match), during (in-match), after (post-match) and during rest periods (in-match rest) of 46 national and international matches...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27918240/circadian-rhythm-effect-on-physical-tennis-performance-in-trained-male-players
#20
Álvaro López-Samanes, Diego Moreno-Pérez, José L Maté-Muñoz, Raúl Domínguez, Jesús G Pallarés, Ricardo Mora-Rodriguez, Juan F Ortega
To determine the effect of circadian rhythm on neuromuscular responses and kinematics related to physical tennis performance, after a standardised warm-up, 13 highly competitive male tennis players were tested twice for serve velocity/accuracy (SVA), countermovement vertical jump (CMJ), isometric handgrip strength (IS), agility T-test (AGIL) and a 10-m sprint (10-m RUN). In a randomised, counter-balance order, tennis players underwent the test battery twice, either in the morning (i.e., AM; 9:00 h) and in the afternoon (i...
December 5, 2016: Journal of Sports Sciences
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