Prediction of Upper Respiratory Illness Using Salivary Immunoglobulin A in Youth Athletes.

Abstract:

PURPOSE:To evaluate the relative importance and predictive ability of salivary immunoglobulin A (s-IgA) measures with regards to upper respiratory illness (URI) in youth athletes. METHODS:Over a 38-week period, 22 youth athletes (age = 16.8 [0.5] y) provided daily symptoms of URI and 15 fortnightly passive drool saliva samples, from which s-IgA concentration and secretion rate were measured. Kernel-smoothed bootstrapping generated a balanced data set with simulated data points. The random forest algorithm was used to evaluate the relative importance (RI) and predictive ability of s-IgA concentration and secretion rate with regards to URI symptoms present on the day of saliva sampling (URIday), within 2 weeks of sampling (URI2wk), and within 4 weeks of sampling (URI4wk). RESULTS:The percentage deviation from average healthy s-IgA concentration was the most important feature for URIday (median RI 1.74, interquartile range 1.41-2.07). The average healthy s-IgA secretion rate was the most important feature for URI4wk (median RI 0.94, interquartile range 0.79-1.13). No feature was clearly more important than any other when URI symptoms were identified within 2 weeks of sampling. The values for median area under the curve were 0.68, 0.63, and 0.65 for URIday, URI2wk, and URI4wk, respectively. CONCLUSIONS:The RI values suggest that the percentage deviation from average healthy s-IgA concentration may be used to evaluate the short-term risk of URI, while the average healthy s-IgA secretion rate may be used to evaluate the long-term risk. However, the results show that neither s-IgA concentration nor secretion rate can be used to accurately predict URI onset within a 4-week window in youth athletes.

authors

Sawczuk T,Jones B,Welch M,Beggs C,Scantlebury S,Till K

doi

10.1123/ijspp.2019-0804

subject

Has Abstract

pub_date

2021-01-13 00:00:00

pages

1-6

eissn

1555-0265

issn

1555-0273

pii

ijspp.2019-0804

pub_type

杂志文章
  • VO2 at Maximal and Supramaximal Intensities: Lessons to High-Intensity Interval Training in Swimming.

    abstract:PURPOSE:To establish appropriate work intensity for interval training that would elicit maximal oxygen uptake (VO2max) for well-trained swimmers. METHODS:Twelve male competitive swimmers completed an incremental protocol to determine the minimum velocity at VO2max (νVO2max) and, in randomized order, 3 square-wave exer...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2016-0475

    authors: Sousa A,Vilas-Boas JP,Fernandes RJ,Figueiredo P

    更新日期:2017-08-01 00:00:00

  • The validity and reliability of 1-Hz and 5-Hz global positioning systems for linear, multidirectional, and soccer-specific activities.

    abstract:PURPOSE:The study aimed to analyze the validity and reliability of commercially available nondifferential Global Positioning System (NdGPS) devices for measures of total distance during linear, multidirectional and soccer-specific motion at 1-Hz and 5-Hz sampling frequencies. METHODS:Linear (32 trials), multidirection...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.5.4.448

    authors: Portas MD,Harley JA,Barnes CA,Rush CJ

    更新日期:2010-12-01 00:00:00

  • Accumulated Oxygen Deficit During Exercise to Exhaustion Determined at Different Supramaximal Work Rates.

    abstract:PURPOSE:The aim of the study was to determine the effect of supramaximal exercise intensity during constant work-rate cycling to exhaustion on the accumulated oxygen deficit (AOD) and to determine the test-retest reliability of AOD. METHODS:Twenty-one trained male cyclists and triathletes (mean ± SD for age and maxima...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2015-0343

    authors: Muniz-Pumares D,Pedlar C,Godfrey RJ,Glaister M

    更新日期:2017-03-01 00:00:00

  • The Annual Periodization of Training Volumes of International-Level Cross-Country Skiers and Biathletes.

    abstract:PURPOSE:To compare the training-volume (TrV) distribution of Russian international-level male biathletes, female biathletes, and cross-country skiers (XC) during an annual cycle. METHODS:Day-to-day TrVs were recorded and averaged for a 5-year period for male biathletes (n = 6), female biathletes (n = 8), and XC (n = 1...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2019-0220

    authors: Myakinchenko EB,Kriuchkov AS,Adodin NV,Feofilaktov V

    更新日期:2020-08-19 00:00:00

  • Angle-specific eccentric hamstring fatigue after simulated soccer.

    abstract:PURPOSE:To evaluate the effect of simulated soccer on the hamstrings eccentric torque-angle profile and angle of peak torque (APTeccH), and on the hamstrings:quadriceps torque ratio at specific joint angles (ASHecc:Qcon). METHODS:The authors assessed dominant-limb isokinetic concentric and eccentric knee flexion and c...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2014-0088

    authors: Cohen DD,Zhao B,Okwera B,Matthews MJ,Delextrat A

    更新日期:2015-04-01 00:00:00

  • The Response to and Recovery From Maximum-Strength and -Power Training in Elite Track and Field Athletes.

    abstract:UNLABELLED:There is a great deal of research on the responses to resistance training; however, information on the responses to strength and power training conducted by elite strength and power athletes is sparse. PURPOSE:To establish the acute and 24-h neuromuscular and kinematic responses to Olympic-style barbell str...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2015-0235

    authors: Howatson G,Brandon R,Hunter AM

    更新日期:2016-04-01 00:00:00

  • Strength Training for Middle- and Long-Distance Performance: A Meta-Analysis.

    abstract:PURPOSE:To assess the net effects of strength training on middle- and long-distance performance through a meta-analysis of the available literature. METHODS:Three databases were searched, from which 28 of 554 potential studies met all inclusion criteria. Standardized mean differences (SMDs) were calculated and weighte...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章,meta分析

    doi:10.1123/ijspp.2017-0032

    authors: Berryman N,Mujika I,Arvisais D,Roubeix M,Binet C,Bosquet L

    更新日期:2018-01-01 00:00:00

  • Talent identification and specialization in sport: an overview of some unanswered questions.

    abstract::The theory of deliberate practice postulates that experts are always made, not born. This theory translated to the youth-sport domain means that if athletes want to be high-level performers, they need to deliberately engage in practice during the specialization years, spending time wisely and always focusing on tasks ...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章,评审

    doi:10.1123/ijspp.7.4.390

    authors: Gonçalves C EB,Rama L ML,Figueiredo AB

    更新日期:2012-12-01 00:00:00

  • Similar Cardioventilatory but Greater Neuromuscular Stimuli With Interval Drop Jump Than With Interval Running.

    abstract:CONTEXT:Drop jumps and high-intensity interval running are relevant training methods to improve explosiveness and endurance performance, respectively. Combined training effects might, however, be achieved by performing interval drop jumping. PURPOSE:To determine the acute effects of interval drop jumping on oxygen upt...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2019-0031

    authors: Ducrocq GP,Hureau TJ,Meste O,Blain GM

    更新日期:2019-10-17 00:00:00

  • Validity of a Simple Method for Measuring Force-Velocity-Power Profile in Countermovement Jump.

    abstract:PURPOSE:To analyze the reliability and validity of a simple computation method to evaluate force (F), velocity (v), and power (P) output during a countermovement jump (CMJ) suitable for use in field conditions and to verify the validity of this computation method to compute the CMJ force-velocity (F-v) profile (includi...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2015-0484

    authors: Jiménez-Reyes P,Samozino P,Pareja-Blanco F,Conceição F,Cuadrado-Peñafiel V,González-Badillo JJ,Morin JB

    更新日期:2017-01-01 00:00:00

  • Effects of Different In-Season Strength Training Methods on Strength Gains and Water Polo Performance.

    abstract:PURPOSE:This study aimed to compare the effects of 5 different 18-week in-season strength training programs on strength gains and specific water polo performance. METHODS:A total of 56 young male water polo players were randomly assigned to the following 5 training groups: dry-land strength training, in-water-specific...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2020-0046

    authors: Martin MS,Pareja Blanco F,De Villarreal ES

    更新日期:2021-01-28 00:00:00

  • Self-report versus direct measurement for assessment of fluid intake during a 70.3-mile triathlon.

    abstract:PURPOSE:Self-report (SR) has been the primary method used to assess fluid intake during endurance events, but unfortunately, little is known about the validity of SR. The purpose of this study was to compare SR fluid intake with direct measurement (DM) during a 70.3-mile triathlon. METHODS:Fifty-three (42 men, 11 wome...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2014-0358

    authors: Wilson PB,Rhodes GS,Ingraham SJ

    更新日期:2015-07-01 00:00:00

  • Effect of Stretching Protocols on Glenohumeral-Joint Muscle Activation in Elite Table Tennis Players.

    abstract:CONTEXT:Several studies report static-stretch-induced deficits and dynamic-stretch performance improvement after intervention. PURPOSE:To investigate the muscle activation of the forehand and backhand in table tennis players after experiencing static- and dynamic-stretching protocols. METHODS:A total of 24 elite male...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2019-0768

    authors: Kazemi O,Letafatkar A,Marchetti PH

    更新日期:2020-11-12 00:00:00

  • Are oxygen uptake kinetics modified when using a respiratory snorkel?

    abstract:PURPOSE:The aim of this study was to compare VO2 kinetics during constant power cycle exercise measured using a conventional facemask (CM) or a respiratory snorkel (RS) designed for breath-by-breath analysis in swimming. METHODS:VO2 kinetics parameters-obtained using CM or RS, in randomized counterbalanced order-were ...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijspp.5.3.292

    authors: Reis JF,Millet GP,Malatesta D,Roels B,Borrani F,Vleck VE,Alves FB

    更新日期:2010-09-01 00:00:00

  • Effects of Foot-Strike Patterns on Biomarkers S100 Calcium-Binding Protein B/Neuron-Specific Enolase in Running-A Pilot Study.

    abstract:PURPOSE:Foot-strike patterns (FSP) in running are related to certain impact kinetics during ground contact. A rear-foot strike (RFS) has been associated with higher impact forces, whereas a forefoot strike (FFS) is assumed to minimize these impact forces. This study investigated the effects of running with RFS or FFS o...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2019-0584

    authors: Schroeder J,Erthel F,Hollander K

    更新日期:2019-12-19 00:00:00

  • Comparison of Heart-Rate-Variability Recording With Smartphone Photoplethysmography, Polar H7 Chest Strap, and Electrocardiography.

    abstract:PURPOSE:To establish the validity of smartphone photoplethysmography (PPG) and heart-rate sensor in the measurement of heart-rate variability (HRV). METHODS:29 healthy subjects were measured at rest during 5 min of guided breathing and normal breathing using smartphone PPG, a heart-rate chest strap, and electrocardiog...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2016-0668

    authors: Plews DJ,Scott B,Altini M,Wood M,Kilding AE,Laursen PB

    更新日期:2017-11-01 00:00:00

  • Postactivation potentiation of force is independent of h-reflex excitability.

    abstract:UNLABELLED:The contractile history of muscle can potentiate electrically evoked force production. A link to voluntary force production, related in part to an increase in reflex excitability, has been suggested. PURPOSE:Our purpose was to quantify the effect of postactivation potentiation on voluntary force production ...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.3.2.219

    authors: Hodgson MJ,Docherty D,Zehr EP

    更新日期:2008-06-01 00:00:00

  • Does polarized training improve performance in recreational runners?

    abstract:PURPOSE:To quantify the impact of training-intensity distribution on 10K performance in recreational athletes. METHODS:30 endurance runners were randomly assigned to a training program emphasizing low-intensity, sub-ventilatory-threshold (VT), polarized endurance-training distribution (PET) or a moderately high-intens...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章,随机对照试验

    doi:10.1123/ijspp.2012-0350

    authors: Muñoz I,Seiler S,Bautista J,España J,Larumbe E,Esteve-Lanao J

    更新日期:2014-03-01 00:00:00

  • Difference in Pacing Between Time- and Distance-Based Time Trials in Trained Cyclists.

    abstract::The purpose of this study was to compare the pacing profiles between distance- and duration-based trials of short and long duration. Thirteen trained cyclists completed 2 time-based (6 and 30 min) and 2 distance-based (4 and 20 km) self-paced cycling time trials. Participants were instructed to complete each trial wit...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2015-0613

    authors: Abbiss CR,Thompson KG,Lipski M,Meyer T,Skorski S

    更新日期:2016-11-01 00:00:00

  • Marathon Specialization in Elites: A Head Start for Africans.

    abstract:PURPOSE:To assess differences in event-specific specialization between elite African and non-African male marathon runners based on age, performance, and career length. METHODS:The top 90 African marathoners from 2001 to 2015 were compared with the top 90 non-African marathoners from the same time period across variou...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2017-0069

    authors: Noble TJ,Chapman RF

    更新日期:2018-01-01 00:00:00

  • Physical and Physiological Characteristics of Various-Sided Games in Elite Women's Soccer.

    abstract:PURPOSE:To investigate the physical and physiological response to different formats of various-sided games. METHODS:Eighteen elite women's soccer players wore 15-Hz global positioning system devices and heart-rate (HR) monitors during various-sided games (small, 4 vs 4 and 5 vs 5; medium, 6 vs 6 and 7 vs 7; large, 8 v...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2015-0087

    authors: Mara JK,Thompson KG,Pumpa KL

    更新日期:2016-10-01 00:00:00

  • Error-Correction Processing in Timing Lights for Measuring Sprint Performance: Does It Work?

    abstract:PURPOSE:To investigate if error-correction-processing (ECP) algorithms in timing lights are able to eliminate or reduce measurement errors (MEs) and false signals due to swinging arms or legs. METHODS:First, a dummy was used to check if ECP generally works. Second, 15 male sport students performed sprints over 5 and 1...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2017-0596

    authors: Altmann S,Ringhof S,Becker B,Woll A,Neumann R

    更新日期:2018-11-26 00:00:00

  • Hormonal and neuromuscular responses to high-level middle- and long-distance competition.

    abstract:PURPOSE:The purpose of this study was to analyze the effects of high-level competition on salivary free cortisol, countermovement jump (CMJ), and rating of perceived exertion (RPE) and the relationships between these fatigue indicators in a group of elite middle- and long-distance runners. METHOD:The salivary free cor...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2013-0539

    authors: Balsalobre-Fernández C,Tejero-González CM,del Campo-Vecino J

    更新日期:2014-09-01 00:00:00

  • Olympic Genes on the Podium?

    abstract::Despite some advances, it remains largely unknown how the millions of variations in the human genome influence athletic performance (especially in endurance events), and no single genetic test can really predict sports talent. However, there is experimental evidence from animal research that selecting for even a simpl...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2016-0421

    authors: Sanchis-Gomar F,Pareja-Galeano H,Rodriguez-Marroyo JA,de Koning JJ,Lucia A,Foster C

    更新日期:2016-10-01 00:00:00

  • Assessment of an international breaststroke swimmer using the 7 x 200-m step test.

    abstract::Thompson and Cooper1 observed that improvements in the swimming speed at 2-mM and 6-mM lactate concentration coincided with improvements in competitive breaststroke performances, whereas Pyne et al concluded that changes in swimming speed at lactate threshold were not directly associated with competition performances ...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.1.2.172

    authors: Thompson K,Garland S,Lothian F

    更新日期:2006-06-01 00:00:00

  • Ischemic Preconditioning: Improved Cycling Performance Despite Nocebo Expectation.

    abstract:PURPOSE:Ischemic preconditioning (IPC) through purposeful circulatory occlusion may enhance exercise performance. The value of IPC for improving performance is controversial owing to challenges with employing effective placebo controls. This study examines the efficacy of IPC versus a deceptive sham protocol for improv...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2019-0290

    authors: Cheung CP,Slysz JT,Burr JF

    更新日期:2019-10-11 00:00:00

  • The Effects of Different Forms of Caffeine Supplement on 5-km Running Performance.

    abstract:PURPOSE:Caffeine is frequently used by athletes as an ergogenic aid. Various alternate forms of caffeine administration are available, which may produce different effects. This investigation compares the effects of different forms of caffeine supplementation on 5-km running performance, and the relationship between ath...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2019-0287

    authors: Whalley PJ,Dearing CG,Paton CD

    更新日期:2019-10-11 00:00:00

  • The effect of 45 minutes of soccer-specific exercise on the performance of soccer skills.

    abstract:PURPOSE:The aim of the study was to examine the effect of fatigue, developed during prolonged high-intensity intermittent exercise, on the performance of soccer shooting and dribbling skill. METHODS:Nine semiprofessional soccer players with a mean age of 20.7+/-1.4 years volunteered to participate in the study. Partic...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.4.2.163

    authors: Stone KJ,Oliver JL

    更新日期:2009-06-01 00:00:00

  • Consistency of commercial devices for measuring elevation gain.

    abstract:PURPOSE:To determine the consistency of commercially available devices used for measuring elevation gain in outdoor activities and sports. METHODS:Two separate observational validation studies were conducted. Garmin (Forerunner 310XT, Edge 500, Edge 750, and Edge 800; with and without elevation correction) and SRM (Po...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2013-0232

    authors: Menaspà P,Impellizzeri FM,Haakonssen EC,Martin DT,Abbiss CR

    更新日期:2014-09-01 00:00:00

  • Relative Age Effect in Young Swiss Alpine Skiers From 2004 to 2011.

    abstract:PURPOSE:To verify whether relative age effects (RAEs) occur among young male and female Swiss Alpine skiers of different age groups and performance levels. In addition, the efficacy of normalizing performance in physical tests to height and body mass to attenuate RAEs eventually present was tested. METHODS:The Swiss S...

    journal_title:International journal of sports physiology and performance

    pub_type: 杂志文章

    doi:10.1123/ijspp.2014-0418

    authors: Gorski T,Rosser T,Hoppeler H,Vogt M

    更新日期:2016-05-01 00:00:00