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https://www.readbyqxmd.com/read/28933715/rating-of-perceived-exertion-for-quantification-of-training-and-combat-loads-during-combat-sport-specific-activities-a-short-review
#1
Maamer Slimani, Philip Davis, Emerson Franchini, Wassim Moalla
Slimani, M, Davis, P, Franchini, E, and Moalla, W. Rating of perceived exertion for quantification of training and combat loads during combat sport-specific activities: a short review. J Strength Cond Res 31(10): 2889-2902, 2017-The aim of this short review was to summarize data pertaining to the rating of perceived exertion (RPE) methods (RPE value and session-RPE) during combat sport-specific activities (i.e., competition and training) based on many factors, including contest type (i.e., official vs. simulated vs...
October 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28930872/improving-vertical-jump-profiles-through-prescribed-movement-plans
#2
John K Mayberry, Bryce Patterson, Phil Wagner
Developing practical, reliable, and valid methods for monitoring athlete wellness and injury risk is an important goal for trainers, athletes, and coaches. Previous studies have shown that the countermovement vertical jump test (CMJ) is both a reliable and valid metric for evaluating an athlete's condition. This study examines the effectiveness of prescribed workouts on improving quality of movement during CMJ. The dataset consists of 2425 pairs of CMJ scans for high school, college, and professional athletes training at a privately owned facility...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28912731/long-term-athletic-development-in-youth-alpine-ski-racing-the-effect-of-physical-fitness-ski-racing-technique-anthropometrics-and-biological-maturity-status-on-injuries
#3
Lisa Müller, Carolin Hildebrandt, Erich Müller, Christian Fink, Christian Raschner
Alpine ski racing is known to be a sport with a high risk of injuries. Because most studies have focused mainly on top-level athletes and on traumatic injuries, limited research exists about injury risk factors among youth ski racers. The aim of this study was to determine the intrinsic risk factors (anthropometrics, biological maturity, physical fitness, racing technique) for injury among youth alpine ski racers. Study participants were 81 youth ski racers attending a ski boarding school (50 males, 31 females; 9-14 years)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28912725/enhanced-strength-and-sprint-levels-and-changes-in-blood-parameters-during-a-complete-athletics-season-in-800-m-high-level-athletes
#4
Beatriz Bachero-Mena, Fernando Pareja-Blanco, Juan J González-Badillo
The purpose of this study was to analyze changes in sprint, strength, hematological, and hormonal parameters in high-level 800 m athletes during a complete athletics season. Thirteen male athletes of national and international level in 800 m (personal best ranging from 1:43 to 1:58 min:ss) participated in this study. A total of 5 tests were conducted during a complete athletics season. Athletes performed sprint tests (20 and 200 m), countermovement jump (CMJ), jump squat (JS), and full squat (SQ) tests. Blood samples (red and white blood profile) and hormones were collected in test 1 (T1), test 3 (T3), and test 5 (T5)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28902119/determination-of-vertical-jump-as-a-measure-of-neuromuscular-readiness-and-fatigue
#5
Casey M Watkins, Saldiam R Barillas, Megan A Wong, David C Archer, Ian J Dobbs, Robert G Lockie, Jared W Coburn, Tai T Tran, Lee E Brown
Coaches closely monitor training loads and periodize sessions throughout the season to create optimal adaptations at the proper time. However, only monitoring training loads ignores the innate physiological stress each athlete feels individually. Vertical jump (VJ) is widely used as a measure of lower body power, and has been used in post-match studies to demonstrate fatigue levels. However, no pre-training monitoring via VJ performance has been previously studied. Therefore, the purpose of this study was to determine the sensitivity of VJ as a measure of readiness and fatigue on a daily sessional basis...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28900575/energy-system-development-and-load-management-through-the-rehabilitation-and-return-to-play-process
#6
Scot Morrison, Patrick Ward, Gregory R duManoir
Return-to-play from injury is a complex process involving many factors including the balancing of tissue healing rates with the development of biomotor abilities. This process requires interprofessional cooperation to ensure success. An often-overlooked aspect of return-to-play is the development and maintenance of sports specific conditioning while monitoring training load to ensure that the athlete's training stimulus over the rehabilitation period is appropriate to facilitate a successful return to play...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28895620/epidemiology-of-overuse-injuries-in-youth-team-sports-a-3-year-prospective-study
#7
Mari Leppänen, Kati Pasanen, Pekka Kannus, Tommi Vasankari, Urho M Kujala, Ari Heinonen, Jari Parkkari
Prospective studies on overuse injuries and their impact on athletic training among youth team sports are scarce. The purpose of this study was to investigate the incidence, severity and player related risk factors of overuse injuries among young (12-20 years) basketball and floorball players. A total of 387 players participated in a 3-year prospective study. Each player completed a baseline questionnaire regarding their background information. Overuse injuries that prevented players to fully or partly participate in their regular training were collected...
September 11, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28892463/effect-of-different-velocity-loss-thresholds-during-a-power-oriented-resistance-training-program-on-the-mechanical-capacities-of-lower-body-muscles
#8
Alejandro Pérez-Castilla, Amador García-Ramos, Paulino Padial, Antonio J Morales-Artacho, Belén Feriche
This study compared the effects of two velocity loss thresholds during a power-oriented resistance training program on the mechanical capacities of lower-body muscles. Twenty men were counterbalanced in two groups (VL10 and VL20) based on their maximum power capacity. Both groups used the same exercises, relative intensity and repetition volume, only differing in the velocity loss threshold of each set (VL10: 10% vs. VL20: 20%). Pre- and post-training assessments included an incremental loading test and a 15-m linear sprint to assess the force- and load-velocity relationships and athletic performance variables, respectively...
September 11, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28886473/strategies-for-injury-prevention-in-brazilian-football-perceptions-of-physiotherapists-and-practices-of-premier-league-teams
#9
Maurício Couto Meurer, Marcelo Faria Silva, Bruno Manfredini Baroni
OBJECTIVES: To describe the physiotherapists perceptions and the current practices for injury prevention in elite football (soccer) clubs in Brazil. DESIGN: Cross-sectional study. SETTING: Group of Science in Sports & Exercise, Federal University of Healthy Sciences of Porto Alegre (Brazil). PARTICIPANTS: 16 of the 20 football clubs involved in the Brazilian premier league 2015. MAIN OUTCOME MEASURES: Physiotherapists answered a structured questionnaire...
July 25, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28875298/2d-longitudinal-lv-speckle-tracking-strain-pattern-in-breast-cancer-survivors-sports-activity-vs-exercise-as-prescription-model
#10
Giorgio Galanti, Gianni Pedrizzetti, Stefano Pedri, Laura Stefani
Prevention strategies are important to optimize and to manage heart care in breast cancer survivors. Regular physical activity at moderate intensity is normally proposed to maintain myocardial performance; however, no data is available about the different impact of different levels of physical exercise. 2D speckle tracking echocardiography (2DSTE) is an accepted method for early detection of myocardial dysfunction. The study aims to monitor the cardiac performances in breast cancer survivors by 2DSTE analysis to manage sports activity vs physical activity...
September 5, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28873025/analysis-of-head-impacts-during-sub-elite-hurling-practice-sessions
#11
D O'Sullivan, M Roe, C Blake
The reported incidence of head and neck injuries in hurling is 0.12 per 1000 hours, but no previous research has quantified head impact characteristics in this sport. Here, a wireless accelerometer and gyroscope captured head impacts, in 20 senior club level hurling players. Peak linear and rotational acceleration and impact location were recorded during three hurling training sessions, each player participating once. A mean of 27.9 impacts (linear acceleration >10g) per player, per session were recorded; 1314 impacts during a total exposure time of 247 minutes...
September 5, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28872380/optimizing-heat-acclimation-for-endurance-athletes-high-vs-low-intensity-training
#12
Cyril Schmit, Rob Duffield, Christophe Hausswirth, Jeanick Brisswalter, Yann Le Meur
PURPOSE: We sought to determine the effect of high- vs. low-intensity training in the heat and ensuing taper period in the heat on endurance performance. METHODS: Nineteen well-trained triathletes undertook 5 days of normal training and a 1-week taper, including either low- (HA-L, n=10) or high-intensity (HA-H, n=9) training sessions in the heat (30°C, 50% of relative humidity). A control group (n=10) reproduced their usual training in thermoneutral conditions...
September 5, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28863033/increased-blood-pressure-and-aortic-stiffness-among-abusers-of-anabolic-androgenic-steroids-potential-effect-of-suppressed-natriuretic-peptides-in-plasma
#13
Jon J Rasmussen, Morten Schou, Per L Madsen, Christian Selmer, Marie L Johansen, Peter Hovind, Peter S Ulriksen, Jens Faber, Finn Gustafsson, Caroline Kistorp
BACKGROUND: Abuse of anabolic androgenic steroids (AAS) is prevalent among recreational athletes and adverse effects on blood pressure (BP) and arterial stiffness could be substantial. Testosterone decreases natriuretic peptides which are key components in BP-regulation and may impair BP-homeostasis in AAS abusers. OBJECTIVE: To investigate BP and aortic stiffness in relation to natriuretic peptides among current AAS abusers, former AAS abusers and controls. METHODS: In this cross-sectional study, 37 current AAS abusers, 33 former AAS abusers and 30 controls were included...
August 31, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28858051/long-term-changes-in-jump-performance-and-maximum-strength-in-a-cohort-of-ncaa-division-i-women-s-volleyball-athletes
#14
Ashley A Kavanaugh, Satoshi Mizuguchi, William A Sands, Michael W Ramsey, Michael H Stone
The purpose of this investigation was to quantify the magnitude of change in maximal strength and jumping abilities over approximately one, two, and three years of supervised sport and resistance training in NCAA Division I women's volleyball athletes. This was an exploratory study on a cohort of women's volleyball athletes (n=29) split into three groups based on length of time spent in a supervised resistance training program: group 1 (n=11): 0.7±0.3 yrs, group 2 (n=9): 1.6±0.2 yrs, and group 3 (n=9): 2...
August 26, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28856344/bone-stress-injuries-in-the-military-diagnosis-management-and-prevention
#15
Steven F DeFroda, Kenneth L Cameron, Matthew Posner, Peter K Kriz, Brett D Owens
Bone stress injuries occur when forces applied to a bone for an extended period exceed the ability of the bone to adequately remodel. These injuries, which range from stress reactions to nondisplaced and even displaced fractures, most often affect people who experience high levels of repetitive stress and loading in the lower extremity or changes in physical activity level. For example, stress fractures are common in endurance athletes, in athletes engaged in preseason and early-season conditioning, and in military recruits...
July 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28841573/pediatric-providers-attitudes-and-practices-regarding-concussion-diagnosis-and-management
#16
Khalida Itriyeva, Ronald Feinstein, Linda Carmine
Background Concussions, a form of mild traumatic brain injury, are a current "hot topic" in sports and medicine, with current research focusing on diagnosis, treatment, and the long-term effects of repeated concussions on development of chronic traumatic encephalopathy. Concussions represent 8.9% of all high school athletic injuries, and pediatricians see many of these patients in their practices, however evolving guidelines and recommendations have resulted in varying practices among providers. Objective To assess how local pediatricians in New York Chapter 2 of the American Academy of Pediatrics (AAP) diagnose and treat concussion patients, and to evaluate the need for continuing education in this area...
August 25, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28817504/movement-demands-and-perceived-wellness-associated-with-preseason-training-camp-in-ncaa-division-i-college-football-players
#17
Aaron D Wellman, Sam C Coad, Patrick J Flynn, Mike Climstein, Christopher P McLellan
Wellman, AD, Coad, SC, Flynn, PJ, Climstein, M, and McLellan, CP. Movement demands and perceived wellness associated with preseason training camp in NCAA Division I college football players. J Strength Cond Res 31(10): 2704-2718, 2017-The aims of this study were to examine the movement demands of preseason practice in National Collegiate Athletic Association Division I college football players using portable global positioning system (GPS) technology and to assess perceived wellness associated with preseason practice to determine whether GPS-derived variables from the preceding day influence perceived wellness the following day...
October 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28798200/wearable-physiological-monitoring-for-human-thermal-work-strain-optimization
#18
Mark J Buller, Alexander Pearson Welles, Karl E Friedl
Safe performance limits of soldiers and athletes have typically relied on predictive work-rest models of ambient conditions, average work intensity, and characteristics of the population. Bioengineering advances in noninvasive sensor technologies including miniaturization, reduced cost, power requirements, and comfort now make it possible to produce individual predictions of safe thermal-work limits. These precision medicine assessments depend on the development of thoughtful algorithms based on physics and physiology...
August 10, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28777249/isometric-mid-thigh-pull-performance-is-associated-with-athletic-performance-and-sprinting-kinetics-in-division-i-men-and-women-s-basketball-players
#19
Jeremy R Townsend, David Bender, William Vantrease, John Hudy, Kevin Huet, Cassie Williamson, Emily Bechke, Paul Serafini, Gerald T Mangine
PURPOSE: To examine the relationships between isometric mid-thigh pull (IMTP) force, athletic performance measures, and sprint kinetics in Division I men's and women's basketball players. METHODS: Twenty-three (male = 8, female = 15) division 1 basketball players completed a maximal 20-m sprint trial while tethered to a device which provided kinetic feedback (peak and average sprinting power, velocity and force). Additionally, one repetition-maximal (1RM) front squat, 1RM hang clean, vertical jump height, and agility (pro-agility and lane agility) tests were performed...
July 31, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28748371/acute-effects-of-heated-resistance-exercise-in-female-and-male-power-athletes
#20
Julia R Casadio, Adam G Storey, Fabrice Merien, Andrew E Kilding, James D Cotter, Paul B Laursen
PURPOSE: To determine the effects of heated resistance exercise on thermal strain, neuromuscular function and hormonal responses in power athletes. METHODS: Sixteen (n = 8 female; 8 male) highly trained power athletes completed a combined strength and power resistance exercise session in hot (HOT ~30 °C) and temperate (CON ~20 °C) conditions. Human growth hormone (hGH), cortisol and testosterone concentrations in plasma, peak power (counter-movement jump, CMJ) and peak force (isometric mid-thigh pull) were measured before and after each training session; thermoregulatory responses were monitored during training...
July 26, 2017: European Journal of Applied Physiology
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