An Analysis of Variability in Power Output During Indoor and Outdoor Cycling Time-Trials.
Authors: Jeffries O, Waldron M, Patterson SD, Galna B Abstract PURPOSE:: Regulation of power output during cycling encompasses the integration of internal and external demands to maximise performance. However, relatively little is known about variation in power output in response to the external demands of outdoor cycling. We compared mean power output and the magnitude of power output variability and structure during a 20-min time-trial performed indoors and outdoors. METHODS:: Twenty male competitive cyclists (V̇O2peak 60.4 ± 7.1 mL·kg-1·min-1) performed two randomised maximal 20-min tim...
Source: International Journal of Sports Physiology and Performance - March 14, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

On-Ice Physical Demands of World-Class Women's Ice Hockey: From Training to Competition.
Authors: Douglas A, Rotondi MA, Baker J, Jamnik VK, Macpherson AK Abstract PURPOSE:: To compare on-ice external and internal training loads in world-class women's ice hockey during training and competition. METHOD:: On-ice training load were collected during one season from 25 world-class ice hockey players via wearable technology. A total of 105 on-ice sessions were recorded, which consisted of 61 training sessions and 44 matches. Paired and unpaired t-tests compared training and competition data between and across playing positions. RESULTS:: For training data, there was a difference between positions for PlayerLoad (p
Source: International Journal of Sports Physiology and Performance - March 14, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Development of an On-Water Graded Exercise Test for Flat-Water Sprint Kayak Athletes.
Authors: Winchcombe CE, Binnie MJ, Doyle MM, Hogan C, Peeling P Abstract PURPOSE:: To determine the reliability and validity of a power-prescribed on-water graded exercise test (GXT) for flat-water sprint kayak athletes. METHODS:: Nine well-trained sprint kayak athletes performed three GXTs in a repeated measures design. The initial GXT was performed on a stationary kayak ergometer in the laboratory (LAB). The subsequent two GXTs were performed on-water in an individual (K1) kayak (OW1, OW2). Power output (PWR), stroke rate (SR), blood lactate (BLa), heart rate (HR), oxygen consumption (V̇O2) and the rating of...
Source: International Journal of Sports Physiology and Performance - March 14, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Alternate-Day Low Energy Availability During Spring Classics in Professional Cyclists.
Authors: Heikura IA, Quod M, Strobel N, Palfreeman R, Civil R, Burke LM Abstract PURPOSE:: To assess energy and carbohydrate availability and changes in blood hormones in 6 professional male cyclists over multiple single-day races. METHODS:: We collected weighed food records, powermeter data and morning body mass across 8 days. Carbohydrate intakes were compared to contemporary guidelines. Energy availability (EA) was calculated as energy intake minus exercise energy expenditure, relative to fat-free mas (FFM). Skinfold thickness and blood metabolic and reproductive hormones were measured pre- and post-study. S...
Source: International Journal of Sports Physiology and Performance - March 14, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

The Effects of Long Sprint Ability Oriented Small-Sided Games Using Different Players-to-Pitch Area on Internal and External Load in Soccer Players.
CONCLUSIONS:: The main finding of this study showed an inverse association between ball-drill density and internal/external loads in LSA oriented SSG. The SSG300 attested to provide BLc closer to individual maximal, and thus, satisfying the all-out construct assumed for LSA development. Further studies using the SSG300 as training intervention and/or investigating other different SSG formats using the same density are warranted. PMID: 30860405 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - March 14, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Effects of Playing Surface on Physical, Physiological and Perceptual Responses to a Repeated Sprint Ability Test: Natural Grass Versus Artificial Turf.
CONCLUSION:: These findings suggest that RSA performance is enhanced on AT compared to NG. This effect was accompanied by lower fatigue perception and blood [Lac], [NEU] and [LYM], and a more pleasurable feeling. These observations might have implications for physical performance in intermittent team sports athletes who train and compete on different playing surfaces. PMID: 30860407 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - March 14, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

A Comparison of Three Different Unilateral Strength Training Strategies to Enhance Jumping Performance and Decrease Inter-Limb Asymmetries in Soccer Players.
CONCLUSIONS:: Unilateral strength training programs were shown to substantially improve bilateral jumping performance, while unilateral jumping was substantially enhanced in those groups that started the training session with the weaker leg. Finally, between-limbs asymmetries in the triple hop were mainly reduced through performing the double volume with the weaker leg. PMID: 30860411 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - March 14, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Muscle Activation Patterns Correlate With Race Walking Economy in Elite Race Walkers: A Waveform Analysis.
CONCLUSIONS:: This study suggests that neuromuscular system is optimally co-ordinated through varying muscle activation to reduce metabolic demand of race walking. These findings highlight the importance of proximal posterior muscle activation during initial contact and hip flexor activation during early swing phase are associated with efficient energy transfer. Practically, race walking coaches may find this information useful in development of specific training strategies on technique. PMID: 30860418 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - March 14, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

The Crucial Role of Elite Athletes and Expert Coaches With Academic Profiles in Developing Sound Sport Science.
Authors: Chamari K PMID: 30862224 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - March 14, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Inter-Day Reliability and Usefulness of Reactive Strength Index Derived From Two Maximal Rebound Jump Tests.
CONCLUSIONS:: Both tests are reliable for the determination of RSI but the usefulness of the tests in detecting the SWC is questionable. PMID: 30840515 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - March 7, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Predicting On-Ice Skating Using Laboratory- and Field-Based Assessments in Collegiate Ice Hockey Players.
Authors: Delisle-Houde P, Chiarlitti NA, Reid RER, Andersen RE Abstract PURPOSE:: To determine the predictability of common laboratory/field and novel laboratory tests for skating characteristics in Canadian collegiate ice hockey players. METHODS:: Eighteen male hockey players from the university's varsity hockey team, aged 20 to 25 years old (height: 180.7 ± 6.4 cm, weight: 87.1 ± 6.7 kg, body fat: 16.2 ± 4.0 %) completed common laboratory/field-based testing (i.e. standing long jump, vertical jump, off-ice pro-agility, V̇O2max, Wingate), novel laboratory-based testing (i.e. Biodex dynamo...
Source: International Journal of Sports Physiology and Performance - March 7, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

The Effects of Augmented Feedback on Sprint, Jump, and Strength Adaptations in Rugby Union Players Following a Four Week Training Programme.
CONCLUSIONS:: Results indicate that providing augmented feedback during strength and conditioning routines can enhance training adaptations when compared to athletes who do not receive feedback. Consequently, practitioners should consider providing kinematic outputs, displacement, or sprint time at the completion of each repetition as athletes train. PMID: 30840517 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - March 7, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Double Poling Physiology and Kinematics of Elite Cross-Country Skiers: Specialized Long-Distance Versus All-Round Skiers.
Authors: Skattebo Ø, Losnegard T, Stadheim HK Abstract PURPOSE:: Long-distance cross-country skiers specialize to compete in races>50km predominantly using double poling (DP). This emphasize the need for highly developed upper-body endurance capacities and an efficient DP-technique. Our aim was to investigate potential effects of specialization; by comparing physiological capacities and kinematics in DP between long-distance skiers and skiers competing using both techniques (skating/classic) in several competition formats ("all-round skiers"). METHODS:: Seven male long-distance (32±6y...
Source: International Journal of Sports Physiology and Performance - March 7, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Limiting the Rise in Core Temperature During a Rugby Sevens Warm-up With an Ice Vest.
Authors: Taylor L, Stevens CJ, Thornton HR, Poulos N, Chrismas BCR Abstract PURPOSE:: Determine how a cooling vest worn during a warm-up could influence selected performance [counter movement jump (CMJ)], physical (GPS metrics) and psycho-physiological (body temperature and perceptual) variables. METHODS:: In a randomized crossover design, twelve elite male World Rugby Sevens Series athletes completed an outdoor (WBGT: 23-27°C) match-specific externally-valid 30 min warm-up wearing a phase change cooling vest (VEST) and without (CONTROL), on separate occasions 7 days apart. CMJ was assessed before and after...
Source: International Journal of Sports Physiology and Performance - March 7, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

. . . And Wile E. Coyote Caught the Road Runner.
Authors: Buchheit M PMID: 30776936 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 21, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Retraction: Dos'Santos et  al (2016).
Retraction: Dos'Santos et al (2016). Int J Sports Physiol Perform. 2019 Feb 15;:1 Authors: PMID: 30764680 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 17, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Metabolic Power: A Step in the Right Direction for Team Sports.
Authors: Polglaze T, Hoppe MW Abstract The ability of the "metabolic power" model to assess the demands of team-sport activity has been the subject of some interest-and much controversy-in team-sport research. Because the cost of acceleration depends on the initial speed and the costs of acceleration and deceleration are not "equal and opposite," changes in speed must be accounted for when evaluating variable-speed locomotion. The purpose of this commentary is to address some of the misconceptions regarding "metabolic power," acknowledge its limitations, and highlight some of the benef...
Source: International Journal of Sports Physiology and Performance - February 10, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Predicting Future Perceived Wellness in Professional Soccer: The Role of Preceding Load and Wellness.
CONCLUSIONS:: The findings may indicate the importance of including both acute load and pre-session perceived wellness in a broad monitoring approach in professional soccer. PMID: 30702339 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

The Discriminant Validity of Standardised Testing Battery and Its Ability to Differentiate Anthropometric and Physical Characteristics Between Youth, Academy and Senior Professional Rugby League Players.
CONCLUSIONS:: The standardised testing battery differentiates anthropometric and physical qualities of youth, academy and senior players as a group and, in most instances, within positional groups. Furthermore, the battery is able to discriminate between playing standards with good accuracy and might be included in future assessments and rugby league talent identification. PMID: 30702356 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Faster and Slower Post-Training Recovery in Futsal: Multifactorial Classification of Recovery Profiles.
Authors: Wilke CF, Fernandes FAP, Martins FVC, Lacerda AM, Nakamura FY, Wanner SP, Duffield R Abstract PURPOSE:: To investigate the classification of faster vs slower recovery profiles in elite futsal players and factors that distinguish between them. METHODS:: Twenty-two male futsal players were evaluated for the time-course of post-training recovery in countermovement jump (CMJ), 10m sprint, creatine kinase concentration (CK), total quality recovery (TQR) and Brunel Mood Scale (fatigue and vigor) before, post, 3, 24 and 48h after a high-intensity training session. Hierarchical cluster analysis was used to all...
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Implementing Anaerobic Speed Reserve Testing in the Field: Validation of vVO2max Prediction from 1500m Race Performance in Elite Middle-Distance Runners.
CONCLUSIONS:: A moderate difference was evident between 1500v and vVO2max in elite middle-distance runners. The present regression equation should be applied for an accurate field prediction of vVO2max from gun-to-tape 1500 m races. These findings have strong practical implications for coaches lacking access to a sports physiology laboratory that seek to monitor and profile middle-distance runners. PMID: 30702359 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Business Intelligence: How Sport Scientists Can Support Organisation Decision Making in Professional Sport.
Authors: Ward P, Windt J, Kempton T Abstract The application of scientific principles to inform practice has become increasingly common in professional sports, with increasing numbers of sport scientists operating in this area. We believe that in addition to domain specific expertise, effective sport scientists working in professional sport should be able to develop systematic analysis frameworks to enhance performance within their organisation. While statistical analysis is critical to this process, it depends on proper data collection, integration and storage. The purpose of this commentary is to discuss the oppo...
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Swimming Fast When it Counts: A 7-Year Analysis of Olympic and World Championships Performance.
CONCLUSIONS:: Performance progressions at Olympic Games and World Championships were not determined by timing between performance peaks. Performance progression at a major competition appears necessary to win a medal or make the final, independent of race event, sex and age. PMID: 30702363 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Diurnal Variation of Maximal Fat Oxidation Rate in Trained Male Athletes.
Authors: Amaro-Gahete FJ, Jurado-Fasoli L, Triviño AR, Sanchez-Delgado G, de la O A, Helge JW, Ruiz JR Abstract PURPOSE:: To analyze the diurnal variation of maximal fat oxidation (MFO) and the intensity that elicit MFO (Fatmax) in trained male athletes. METHODS:: A total of 12 endurance-trained male athletes aged 24.7±4.1 participated in the study. We measured MFO, Fatmax, maximum oxygen uptake (VO2max) and oxygen uptake percentage at ventilatory threshold 2 (VT2) with a graded exercise protocol performed on two days separated by one week. One test was performed in the morning and the other in th...
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Effect of Heavy Resisted Sled Sprint Training During the Competitive Season on Sprint and Change-of-Direction Performance in Professional Soccer Players.
CONCLUSIONS:: Heavy RSS or URS training matched for running distance were similarly effective at improving sprint and COD performance in professional soccer players when performed in the competitive phase of the season. PMID: 30702366 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Inspiratory Muscle Training: Improvement of Exercise Performance With Acute Hypoxic Exposure.
CONCLUSIONS:: Our data suggest that performing 6wk of inspiratory muscle training may benefit hypoxic endurance exercise performance lasting 30-40 minutes. PMID: 30702370 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Cycling at Altitude: Lower Absolute Power Output as the Main Cause of Lower Gross Efficiency.
CONCLUSIONS:: The lower GE found at altitude, when exercise is performed at the same relative exercise intensity, is mainly caused by the lower PO at which cyclists exercise. PMID: 30702371 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

The Effects of Three Different Doses of Caffeine on Jumping and Throwing Performance: A Randomized, Double-Blind, Crossover Study.
CONCLUSIONS:: Caffeine doses of 2, 4, and 6 mg·kg-1 seem to be effective for acute enhancements in lower-body ballistic exercise performance in recreationally trained male individuals. For the upper-body ballistic exercise performance, only a caffeine dose of 6 mg·kg-1 seems to be effective. The acute effects of caffeine ingestion do not seem to be impacted by habitual caffeine intake; however, this requires further exploration. PMID: 30702372 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

No Improvement in Running Time to Exhaustion at 100% VO2max in Recreationally Active Male Runners With a Preexercise Single-Carbohydrate Mouth Rinse.
CONCLUSIONS:: The present study findings showed that a single pre-exercise CHO mouth rinse was ineffective to improve running time to exhaustion at velocity equivalent to 100% VO2max on a treadmill in recreationally active male runners. PMID: 30702374 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Impairment of Cycling Capacity in the Heat in Well-Trained Endurance Athletes After High-Intensity Short-Term Heat Acclimation.
CONCLUSIONS:: Cycling capacity was impaired in the heat after 5 d of consecutive HIIT HA despite some heat adaptation. Based on the data, this approach is not recommended for athletes preparing to compete in the heat; however, it is possible that it may be beneficial if a state of overreaching is avoided. PMID: 30702375 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Association Between Deoxygenated Hemoglobin Breaking-Point, Anaerobic Threshold and Rowing Performance.
CONCLUSIONS:: These results demonstrate a breaking-point in [HHb] of vastus lateralis during incremental test which is capable to distinguish rowers with different performance levels. However, the high random error would compromise the use of [HHb]BP for training and testing in rowing. PMID: 30702376 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Reliability and Validity of a Novel Futsal Special Performance Test Designed to Measure Skills and Anaerobic Performance.
This study examined the validity and reliability of a novel futsal special performance test (FSPT) as a measure of futsal performance and skills. METHODS:: Thirty six futsal players with different levels of experience were recruited and divided into two groups (elite and non-elite). Players participated in four sessions (at least 7 days apart); a) familiarization session, b) anaerobic power (Wingate test), c) FSPT trial 1, and d) FSPT trial 2. The FSPT was carried out on a futsal court (wooden sprung floor) and examined skills such as dribbling, rotation, long and short passing and shooting. Content validity was assess...
Source: International Journal of Sports Physiology and Performance - February 1, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Effect of Sampling Frequency on Isometric Midthigh-Pull Kinetics.
CONCLUSIONS: Practitioners and scientists may consider sampling as low as 500 Hz when measuring peak force, time-specific force values, and RFD at predetermined time bands during the IMTP for accurate and reliable data. PMID: 30682903 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 28, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

High Match Load's Relation to Decreased Well-Being During an Elite Women's Rugby Sevens Tournament.
Authors: Doeven SH, Brink MS, Huijgen BCH, de Jong J, Lemmink KAPM Abstract PURPOSE:: To determine changes in wellbeing, recovery and neuromuscular performance during and after an elite women's rugby sevens tournament and assess the influence of match load indicators. METHODS:: Twelve elite women rugby sevens players (age 25.3±4.1 y, height 169.0±4.0 cm, weight 63.9±4.9 kg, body fat 18.6±2.7 %) performed 5 matches during a two-day tournament of the Women's Rugby Sevens World Series. Perceived wellbeing (fatigue, sleep quality, general muscle soreness, stress levels, mood), total qual...
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

The Potential to Change Pacing and Performance During 4000-m Cycling Time Trials Using Hyperoxia and Inspired Gas-Content Deception.
Authors: Davies MJ, Clark B, Garvican-Lewis LA, Welvaert M, Gore CJ, Thompson KG Abstract PURPOSE:: Determine if a series of trials with fraction of inspired oxygen (FiO2) content deception could improve 4000-m cycling time-trial (TT) performance. METHODS:: Fifteen trained male cyclists (mean ± SD: body mass 74.2 ± 8.0 kg; peak oxygen uptake 62 ± 6 mL.kg-1.min-1) completed six, 4000-m cycling TTs in a semi-randomised order. After a familiarisation TT, cyclists were informed in two initial trials they were inspiring normoxic air (NORM, FiO2: 0.21), however in one trial (deception condition) ...
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

The Effect of Self-Paced and Prescribed Inter-Set Rest Strategies on Performance in Strength Training.
Authors: Ibbott P, Ball NB, Welvaert M, Thompson KG Abstract PURPOSE:: To assess pacing strategies using prescribed and self-selected inter-set rest periods and their influence on performance in strength trained athletes. METHODS:: Sixteen strength-trained male athletes completed three randomised heavy-strength training sessions (five sets, five repetitions) with different inter-set rest periods. The inter-set rest periods were: 3 minute (3MIN), 5 minute (5MIN) and Self-Selected (SS). Mechanical (power, velocity, work and displacement), surface muscle activity (sEMG) and subjective (Rating of Perceived Exertion...
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Influence of Physical Characteristics and Match Outcome n Technical Errors During Rugby League Match Play.
CONCLUSIONS:: Fewer defensive errors occur 0-40 m zone during winning matches; lower body strength is strongly associated with fewer defensive errors in rugby league players. PMID: 30676143 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Developing Athlete Monitoring Systems in Team-Sports: Data Analysis and Visualization.
CONCLUSIONS:: There is a wide range of analytical methods and tools that practitioners may employ within athlete monitoring systems, as well as several factors that should be considered when collecting these data, methods of determining meaningful changes and various data visualization approaches. Underpinning a successful athlete monitoring system is the ability of practitioners to communicate and present important information to coaches, ultimately resulting in enhanced athletic performance. PMID: 30676144 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Associations Between Selected Training Stress Measures and Fitness Changes in Male Soccer Players.
CONCLUSIONS:: HR-based training metrics can be used to monitor high-intensity intermittent running capacity changes in professional soccer players. The dose-response relationship is also largely detected using accelerometer-based metrics (i.e., NBL) to track changes in high-intensity intermittent running capacity of professional soccer players. PMID: 30676148 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Level Versus Uphill Economy and Mechanical Responses in Elite Ultra-Trail Runners.
Authors: Willis SJ, Gellaerts J, Mariani B, Basset P, Borrani F, Millet GP Abstract AIM:: The purpose of this brief report was to examine the net oxygen cost, oxygen kinetics, and kinematics of level and uphill running in elite ultra-trail runners. METHODS:: Twelve top-level ultra-distance trail runners performed two 5-minute stages of treadmill running (level, 0%, men 15 km·h-1, women 13 km·h-1; and uphill, 12%, men 10 km·h-1, women 9 km·h-1). Gas exchanges were measured to obtain the net oxygen cost and assess oxygen kinetics. Additionally, running kinematics were recorded with ine...
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Monitoring Workload in Elite Female Basketball Players During the In-Season Phase: Weekly Fluctuations and Effect of Playing Time.
CONCLUSIONS:: Coaches of elite female basketball teams should monitor weekly changes in workload during the in-season phase to identify weeks that may predispose players to unwanted spikes and adjust player workload according to playing time. PMID: 30676809 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Factors Affecting the Anthropometric and Physical Characteristics of Elite Academy Rugby League Players: A Multi-Club Study.
CONCLUSION:: These findings offer practitioners designing training programmes for academy rugby league players insight into the relationships between anthropometric and physical characteristics and how they are influenced by playing year, league ranking, position and season phase. PMID: 30676811 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Stabilizing Bioimpedance-Vector-Analysis Measures With a 10-Minute Cold Shower After Running Exercise to Enable Assessment of Body Hydration.
This study aimed to assess the influence of a 10-min cold (22°C) shower on the time course of impedance measurements after controlled exercise. METHODS:: Ten male athletes (26.2±4.1 yr and BMI 23.9±1.7 kg/m2) were tested on two different days. During both trials, athletes ran for 30 min on a treadmill in a room at 22°C. In a randomized cross-over trial, the participants underwent a 10-min cold shower in the trial occasion and did not shower in the control trial. BIA variables were measured before running (i.e. baseline (T0)), immediately after exercising (T1), then at 20 (T2), 40 (T3) and 60 min (...
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Impact of a Carbohydrate Mouth Rinse on Quadriceps Muscle Function and Corticomotor Excitability.
CONCLUSIONS:: CHO MR increased corticospinal motor excitability and quadriceps muscle performance immediately and 10 min after application; however, the form of CHO used did not influence this response. PMID: 30676814 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Criterion Validity, Reliability and Usefulness of a Judo-Specific Maximal Aerobic Power Test.
Authors: Shiroma SA, Julio UF, Franchini E Abstract PURPOSE:: To evaluate criterion validity, reliability and usefulness of a test to measure maximal aerobic power using judo-specific movements (UKtest). METHODS:: 12 judokas performed five graded exercise tests (GETs) in 4 sessions. In sessions 1 and 2, upper-body (UBtest), lower-body (LBtest) and familiarization UKtest. GETs were randomly performed and separated by at least 48 hours. In sessions 3 and 4, test and retest UKtest were performed (7-day apart). For all GETs, peak oxygen consumption (V̇O2peak), maximal heart rate (HRmax), peak blood lactate concent...
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

The Determination of Finger Flexor Critical Force in Rock Climbers'.
CONCLUSIONS:: The results demonstrated the sensitivity of a simple test for the determination of CF and W', using equipment readily available in most climbing gyms. While further work is still necessary, the test of CF described is of value for understanding exercise tolerance and determine optimal training prescription to monitor improvements the performance of the finger flexors. PMID: 30676817 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Impact of Hyperoxic Preconditioning in Normobaric Hypoxia (3500m) on Balance Ability in Highly Skilled Skiers: A Randomized, Crossover Study.
CONCLUSIONS:: We conclude that a hyperoxic preconditioning phase does not affect balance performance under hypoxic environmental conditions. A performance-enhancing effect, at least in terms of coordinative functions, was not supported by our study. PMID: 30676819 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Is the Functional Threshold Power Interchangeable With the Maximal Lactate Steady State in Trained Cyclists?
CONCLUSION:: Therefore, trained and well-trained cyclists can use FTP as a noninvasive and practical alternative to estimate MLSS. PMID: 30676826 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Effects of Resisted Sprint With Changes of Direction Training Through Several Relative Loads on Physical Performance in Soccer Players.
CONCLUSIONS:: These results indicate that COD training, especially moderate load (12.5% BM) resisted COD training, may have a positive effect on COD skills, running sprint performance and jumping ability in young soccer players. PMID: 30676827 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research

Responsiveness and Seasonal Variation of a 12x25m Swimming Test.
CONCLUSION:: The 12x25m test is best suited to differentiating between swimmers of different strokes and events. Further development is needed to improve its utility in quantifying meaningful changes over a season for individual swimmers. PMID: 30676830 [PubMed - as supplied by publisher] (Source: International Journal of Sports Physiology and Performance)
Source: International Journal of Sports Physiology and Performance - January 25, 2019 Category: Sports Medicine Tags: Int J Sports Physiol Perform Source Type: research