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https://www.readbyqxmd.com/read/28737585/biomarkers-in-sports-and-exercise-tracking-health-performance-and-recovery-in-athletes
#1
Elaine C Lee, Maren S Fragala, Stavros A Kavouras, Robin M Queen, J Luke Pryor, Douglas J Casa
Biomarker discovery and validation is a critical aim of the medical and scientific community. Research into exercise and diet-related biomarkers aims to improve health, performance, and recovery in military personnel, athletes, and lay-persons. Exercise physiology research has identified individual biomarkers for assessing health, performance, and recovery during exercise training. However, there are few recommendations for biomarker panels for tracking changes in individuals participating in physical activity and exercise training programs...
July 19, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28735282/a-systematic-review-of-criteria-used-to-define-recovery-from-sport-related-concussion-in-youth-athletes
#2
REVIEW
Mohammad Nadir Haider, John J Leddy, Sonja Pavlesen, Melissa Kluczynski, John G Baker, Jeffrey C Miecznikowski, Barry S Willer
OBJECTIVE: The Concussion in Sport Group guidelines recommend a multifaceted approach to help clinicians make return to sport decisions. The purpose of this study was to identify the most common multifaceted measures used to define clinical recovery from sport-related concussion in young athletes (high school and/or college level) and to summarise existing knowledge of criteria used to make return to sport decisions. DESIGN: Systematic review. DATA SOURCES: The PubMed (MEDLINE), SPORTDiscus and Embase electronic databases were searched from 1 January 2000 to 1 March 2017 by three independent reviewers...
July 22, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28730870/cardiac-autonomic-recovery-after-strength-exercise-in-lower-and-upper-limbs
#3
Naerton José Xavier Isidoro, Milana Drumond Ramos Santana, Vitor E Valenti, David M Garner, Luiz Carlos de Abreu
Introduction Strength exercises influence the cardiovascular system by promoting autonomic adjustments induced by the increased metabolic demand and consequent increase in local blood flow. However, it is unclear whether there are differences between upper and lower limbs. We aimedto evaluate recovery of cardiac autonomic modulation afterstrengthexercise in upper and lower limbs. Methods We analysed 29 healthy male subjects physically active but not professional athletes aged between 20 and 35 years old...
July 21, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28723843/no-superior-adaptations-to-carbohydrate-periodization-in-elite-endurance-athletes
#4
Kasper Degn Gejl, Line Thams, Mette Hansen, Torben Rokkedal-Lausch, Peter Plomgaard, Lars Nybo, Filip J Larsen, Daniele A Cardinale, Kurt Jensen, Hans-Christer Holmberg, Kristian Vissing, Niels Ørtenblad
PURPOSE: The present study investigated the effects of periodic CHO restriction on endurance performance and metabolic markers in elite endurance athletes. METHODS: Twenty-six male elite endurance athletes (VO2max: 65.0 ml O2[BULLET OPERATOR]kg[BULLET OPERATOR]min) completed 4 weeks of regular endurance training, while matched and randomized into two groups training with (Low) or without (High) carbohydrate (CHO) manipulation three days a week. The CHO manipulation days consisted of a 1-hr high intensity bike session in the morning, recovery for 7 hrs while consuming isocaloric diets containing either high CHO (414±2...
July 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28722468/evaluating-the-recovery-curve-for-clinically-assessed-reaction-time-after-concussion
#5
Gianluca Del Rossi
CONTEXT:   A change in reaction time is one of various clinical measures of neurocognitive function that can be monitored after concussion and has been reported to be among the most sensitive indicators of cognitive impairment. OBJECTIVE:   To determine the timeline for clinically assessed simple reaction time to return to baseline after a concussion in high school athletes. DESIGN:   Observational study. SETTING:   Athletic training room...
July 19, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28721108/effect-of-self-paced-active-recovery-and-passive-recovery-on-blood-lactate-removal-following-a-200-m-freestyle-swimming-trial
#6
Márcio Rabelo Mota, Renata Aparecida Elias Dantas, Iransé Oliveira-Silva, Marcelo Magalhães Sales, Rafael da Costa Sotero, Patrícia Espíndola Mota Venâncio, Jairo Teixeira Júnior, Sandro Nobre Chaves, Filipe Dinato de Lima
PURPOSE: The aim of this study was to investigate the effect of self-paced active recovery (AR) and passive recovery (PR) on blood lactate removal following a 200 m freestyle swimming trial. PATIENTS AND METHODS: Fourteen young swimmers (with a training frequency of 6-8 sessions per week) performed two maximal 200 m freestyle trials followed by 15 minutes of different recovery methods, on separate days. Recovery was performed with 15 minutes of passive rest or 5 minutes of passive rest and 10 minutes of self-paced AR...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28714762/effectiveness-of-prp-injection-in-reducing-recovery-time-of-acute-hamstring-injury-a-critically-appraised-topic
#7
Mary Lynn Manduca, Stephen J Straub
Clinical Scenario Hamstring strains are common athletic injuries, with a high recurrence rate (34%).(2) Recently, platelet-rich-plasma (PRP) injections have gained popularity as a potential treatment option to accelerate healing of hamstring injury.(3) Focused Clinical Question Does the combination of PRP injection and rehabilitation decrease recovery time of acute hamstring injury as compared to rehabilitation alone in collegiate athletes? Summary of Key Findings A literature search resulted in three randomized controlled trials (RCT)...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28712093/neurobiological-effect-of-selective-brain-cooling-after-concussive-injury
#8
Alexa Walter, Katie Finelli, Xiaoxiao Bai, Brian Johnson, Thomas Neuberger, Peter Seidenberg, Timothy Bream, Mark Hallett, Semyon Slobounov
The search for effective treatment facilitating recovery from concussive injury, as well as reducing risk for recurrent concussion is an ongoing challenge. This study aimed to determine: a) feasibility of selective brain cooling to facilitate clinical symptoms resolution, and b) biological functions of the brain within athletes in acute phase of sports-related concussion. Selective brain cooling for 30 minutes using WElkins sideline cooling system was administered to student-athletes suffering concussive injury (n=12; tested within 5±3 days) and those without history of concussion (n=12)...
July 15, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28706467/ketogenic-diet-benefits-body-composition-and-well-being-but-not-performance-in-a-pilot-case-study-of-new-zealand-endurance-athletes
#9
Caryn Zinn, Matthew Wood, Mikki Williden, Simon Chatterton, Ed Maunder
BACKGROUND: Low-carbohydrate, high-fat and ketogenic diets are increasingly adopted by athletes for body composition and sports performance enhancements. However, as yet, there is no consensus on their efficacy in improving performance. There is also no comprehensive literature on athletes' experiences while undertaking this diet. The purpose of this pilot work was two-fold: i. to examine the effects of a non-calorie controlled ketogenic diet on body composition and performance outcomes of endurance athletes, and ii...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28704885/submaximal-markers-of-fatigue-and-overreaching-implications-for-monitoring-athletes
#10
André Siegl, Elisa M Kösel, Nicholas Tam, Susanne Koschnick, Nelleke G Langerak, Sabrina Skorski, Tim Meyer, Robert P Lamberts
The regular monitoring of athletes is important to fine-tune training and detect early symptoms of overreaching. Therefore the aim of this study was to determine if a noninvasive submaximal running test could reflect a state of overreaching. 14 trained runners completed a noninvasive Lamberts Submaximal Running Test, one week before and 2 days after finishing an ultramarathon, and delayed onset of muscle soreness and the daily analysis of life demands for athletes questionnaire were also captured. After the ultramarathon, submaximal heart rate was lower at 70% (-3 beats) and 85% of peak treadmill running speed (P<0...
July 13, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28702900/selected-in-season-nutritional-strategies-to-enhance-recovery-for-team-sport-athletes-a-practical-overview
#11
REVIEW
Lisa E Heaton, Jon K Davis, Eric S Rawson, Ryan P Nuccio, Oliver C Witard, Kimberly W Stein, Keith Baar, James M Carter, Lindsay B Baker
Team sport athletes face a variety of nutritional challenges related to recovery during the competitive season. The purpose of this article is to review nutrition strategies related to muscle regeneration, glycogen restoration, fatigue, physical and immune health, and preparation for subsequent training bouts and competitions. Given the limited opportunities to recover between training bouts and games throughout the competitive season, athletes must be deliberate in their recovery strategy. Foundational components of recovery related to protein, carbohydrates, and fluid have been extensively reviewed and accepted...
July 12, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28701496/the-spectrum-of-mild-traumatic-brain-injury-a-review
#12
REVIEW
Andrew R Mayer, Davin K Quinn, Christina L Master
OBJECTIVE: This review provides an in-depth overview of diagnostic schema and risk factors influencing recovery during the acute, subacute (operationally defined as up to 3 months postinjury), and chronic injury phases across the full spectrum of individuals (e.g., athletes to neurosurgery patients) with mild traumatic brain injury (mTBI). Particular emphasis is placed on the complex differential diagnoses for patients with prolonged postconcussive symptoms. METHODS: Select literature review and synthesis...
July 12, 2017: Neurology
https://www.readbyqxmd.com/read/28700514/low-volume-high-intensity-interval-versus-continuous-endurance-training-effects-on-hematological-and-cardiorespiratory-system-adaptations-in-professional-canoe-polo-athletes
#13
Mohsen Sheykhlouvand, Mohammadali Gharaat, Erfan Khalili, Hamid Agha-Alinejad, Farhad Rahmaninia, Hamid Arazi
The aim of this study was to compare the effect of two paddling-based high-intensity interval training (HIIT) and continuous endurance training (CET) on hematological, immunological, and cardiorespiratory adaptations in professional canoe polo athletes. Twenty one male canoe polo athletes were randomly divided into one of three groups (N=7): 1) HIIT with variable intensity (VIHIIT) (6×60-second at 100,110,120,130,130, 130,120,110,100% vV[Combining Dot Above]O2peak from 1 to 9 session respectively, 1:3 work to recovery ratio); 2) HIIT with variable volume (VVHIIT) (6,7,8,9,9,9,8,7,6 repetitions/session from 1 to 9 session respectively)×60-second at lowest velocity that elicited V[Combining Dot Above]O2peak (vV[Combining Dot Above]O2peak), 1:3 work to recovery ratio); and 3) the CET group performed 3 times × 60 min paddling sessions (75% vV[Combining Dot Above]O2peak) per week for 3 weeks...
July 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28700470/salivary-alpha-amylase-salivary-cortisol-and-anxiety-during-a-youth-taekwondo-championship-an-observational-study
#14
Laura Capranica, Giancarlo Condello, Francesco Tornello, Teresa Iona, Salvatore Chiodo, Anna Valenzano, Mario De Rosas, Giovanni Messina, Antonio Tessitore, Giuseppe Cibelli
The aim of this study was to assess the stress-related responses and the coach's capability to match perceived efforts of youth athletes during a taekwondo championship.Using a cross-sectional study design, salivary cortisol (sC) and alpha-amylase (sAA) were measured in 6 males and 3 females young (11.0 ± 0.9 years) athletes at awakening, 5 minutes before, and 1 minute and 30 minutes after official combats. State anxiety was recorded 60 minutes before the first competition, whereas coach's and athletes' ratings of perceived exertion (RPE) were obtained at the end of the combats...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28698987/the-effects-of-traditional-superset-and-tri-set-resistance-training-structures-on-perceived-intensity-and-physiological-responses
#15
Jonathon J S Weakley, Kevin Till, Dale B Read, Gregory A B Roe, Joshua Darrall-Jones, Padraic J Phibbs, Ben Jones
PURPOSE: Investigate the acute and short-term (i.e., 24 h) effects of traditional (TRAD), superset (SS), and tri-set (TRI) resistance training protocols on perceptions of intensity and physiological responses. METHODS: Fourteen male participants completed a familiarisation session and three resistance training protocols (i.e., TRAD, SS, and TRI) in a randomised-crossover design. Rating of perceived exertion, lactate concentration ([Lac]), creatine kinase concentration ([CK]), countermovement jump (CMJ), testosterone, and cortisol concentrations was measured pre, immediately, and 24-h post the resistance training sessions with magnitude-based inferences assessing changes/differences within/between protocols...
July 11, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28696985/tart-cherry-juice-in-athletes-a-literature-review-and-commentary
#16
Kenneth C Vitale, Shawn Hueglin, Elizabeth Broad
Tart cherry (TC) juice has many antioxidant and anti-inflammatory polyphenol compounds. TC lessens pain and accelerates strength recovery after exercise and decreases blood markers of inflammation/oxidative stress. These improvements occur in both strength and endurance exercise. TC supplementation may not be optimal during the adaptation/build stage of training. However, excessive inflammatory/oxidative stress during single-day intense training/competition or multiday tournaments may delay return to peak form...
July 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28690573/changes-of-swimmers-emotional-states-during-the-preparation-of-national-championship-do-recovery-stress-states-matter
#17
Philippe Vacher, Michel Nicolas, Guillaume Martinent, Laurent Mourot
This study examined the trajectories of emotional states and their within-person synergies with perceived stress and recovery during a 4-month training period preceding the French swimming championships. A Multilevel Growth Curve Analysis approach was used with 16 high level swimmers. Five waves of assessments of emotional states, perceived stress and recovery were completed. Results indicated that emotional states were characterized by distinct trajectories during the training period preceding a major competition...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28689823/performance-and-return-to-sport-in-elite-baseball-players-and-recreational-athletes-following-repair-of-the-latissimus-dorsi-and-teres-major
#18
Brandon J Erickson, Peter N Chalmers, Brian R Waterman, Justin W Griffin, Anthony A Romeo
BACKGROUND: Tears of the latissimus dorsi (LD) and teres major (TM) are rare but disabling injuries in the overhead athlete. METHODS: All patients who underwent an LD and/or TM repair between January 1, 2010, and June 6, 2016, with more than 12 months' follow-up were included. Demographic information and postoperative range of motion were recorded. Patients were contacted via phone and answered questions to provide the following: Kerlan-Jobe Orthopaedic Clinic (KJOC) shoulder and elbow outcome score, American Shoulder and Elbow Surgeons (ASES) shoulder score, and visual analog scale (VAS) score...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28682806/cognitive-resilience-and-psychological-responses-across-a-collegiate-rowing-season
#19
Morgan R Shields, M Alison Brooks, Kelli F Koltyn, Jee-Seon Kim, Dane B Cook
INTRODUCTION: Student-athletes face numerous challenges across their competitive season. Although mood states have been previously studied, little is known about adaptations in other psychological responses, specifically cognition. The purpose of this study was to characterize cognitive function, mood, sleep and stress responses at select time-points of a season in collegiate rowers. It was hypothesized that during baseline, typical training and recovery, athletes would show positive mental health profiles, in contrast to decreases in cognition with increases in negative mood and measurements of stress during peak training...
July 5, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28680897/high-prevalence-of-nontraumatic-shoulder-pain-in-a-regional-sample-of-female-high-school-volleyball-athletes
#20
Kayt E Frisch, Jacob Clark, Chad Hanson, Chris Fagerness, Adam Conway, Lindsay Hoogendoorn
BACKGROUND: Shoulder pain is becoming increasingly problematic in young players as volleyball gains popularity. Associations between repetitive motion and pain and overuse injury have been observed in other overhand sports (most notably baseball). Studies of adult athletes suggest that there is a shoulder pain and overuse problem present in volleyball players, but minimal research has been done to establish rates and causes in juvenile participants. PURPOSE: To establish rates of shoulder pain, regardless of whether it resulted in a loss of playing time, in female high school volleyball players...
June 2017: Orthopaedic Journal of Sports Medicine
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