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Pediatric Exercise Science

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https://www.readbyqxmd.com/read/30424684/the-effect-of-functional-home-based-strength-training-programs-on-the-mechano-morphological-properties-of-the-plantar-flexor-muscle-tendon-unit-in-children-with-spastic-cerebral-palsy
#1
Annika Kruse, Christian Schranz, Martin Svehlik, Markus Tilp
PURPOSE: The purpose of this study was to investigate the effects of functional progressive resistance training (PRT) and high-intensity circuit training (HICT) on the mechano-morphological properties of the plantar flexor muscle-tendon unit in children with spastic cerebral palsy. METHODS: Twenty-two children (12.8 [2.6] y old, Gross Motor Function Classification System levels I/II = 19/3) were randomly assigned to either a PRT group or an HICT group. The interventions consisted of functional lower limb exercises, which were performed at home 3 times per week for 8 weeks...
November 14, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30370806/variation-in-the-correlation-between-heart-rate-and-session-rating-of-perceived-exertion-based-estimations-of-internal-training-load-in-youth-soccer-players
#2
Durva Vahia, Adam Kelly, Harry Knapman, Craig A Williams
PURPOSE: When exposed to the same external load, players receive different internal loads, resulting in varied adaptations in fitness. In adult soccer, internal training load is measured using heart rate (HR) and session rating of perceived exertion (sRPE) scales, but these have been underutilized in youth soccer. This study investigated the in-season variation in correlation between HR and sRPE estimations of training load for adolescent soccer players. METHOD: Fifteen male professional adolescent players were monitored for 7 months...
October 28, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30332906/interpreting-aerobic-fitness-in-youth-the-fallacy-of-ratio-scaling
#3
Jo Welsman, Neil Armstrong
In this paper, we draw on cross-sectional, treadmill-determined, peak oxygen uptake data, collected in our laboratory over a 20-year period, to examine whether traditional per body mass (ratio) scaling appropriately controls for body size differences in youth. From an examination of the work of pioneering scientists and the earliest studies of peak oxygen uptake, we show how ratio scaling appears to have no sound scientific or statistical rationale. Using simple methods based on correlation and regression, we demonstrate that the statistical relationships, which are assumed in ratio scaling, are not met in groups of similar aged young people...
October 17, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30319036/sports-participation-decreases-the-incidence-of-traumatic-nonsports-related-fractures-among-adolescents
#4
Kyle R Lynch, Michael Fredericson, Bruna Turi-Lynch, Ricardo R Agostinete, Igor H Ito, Rafael Luiz-de-Marco, Mario A Rodrigues-Junior, Rômulo A Fernandes
OBJECTIVES: To investigate the effects of different sports on the incidence of traumatic fractures (TF; sport-related fractures and those occurring in daily activities) among adolescents during the 9-month follow-up period. METHODS: The adolescents were contacted in 11 different locations (3 public/private schools and 8 sports clubs), and the final sample was divided into 3 groups: control (n = 121), swimming (n = 51), and impact sports (n = 142). The incidence of TF was calculated by considering the exposure to sports (TF/1000 h)...
October 13, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30304983/relationships-between-outdoor-time-physical-activity-sedentary-time-and-body-mass-index-in-children-a-12-country-study
#5
Richard Larouche, Emily F Mire, Kevin Belanger, Tiago V Barreira, Jean-Philippe Chaput, Mikael Fogelholm, Gang Hu, Estelle V Lambert, Carol Maher, José Maia, Tim Olds, Vincent Onywera, Olga L Sarmiento, Martyn Standage, Catrine Tudor-Locke, Peter T Katzmarzyk, Mark S Tremblay
PURPOSE: This study investigated the relationship between outdoor time and physical activity (PA), sedentary time (SED), and body mass index z scores among children from 12 lower-middle-income, upper-middle-income, and high-income countries. METHODS: In total, 6478 children (54.4% girls) aged 9-11 years participated. Outdoor time was self-reported, PA and SED were assessed with ActiGraph GT3X+ accelerometers, and height and weight were measured. Data on parental education, neighborhood collective efficacy, and accessibility to neighborhood recreation facilities were collected from parent questionnaires...
October 10, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30304978/stationary-exercise-in-overweight-and-normal-weight-children
#6
Mostafa Yaghoubi, Philip W Fink, Wyatt H Page, Sarah P Shultz
PURPOSE: This study examined differences in lower extremity kinematics and muscle activation patterns between normal weight (NW) and overweight (OW) children during stationary exercises (running in place, frontal kick, and butt kick) at submaximal intensity. METHODS: Healthy children (aged 10-13 y) were stratified into OW (n = 10; body fat percentage: 34.97 [8.60]) and NW (n = 15; body fat percentage: 18.33 [4.87]). Electromyography was recorded for rectus femoris, vastus lateralis, biceps femoris, gastrocnemius, and tibialis anterior...
October 10, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30304974/validity-of-garmin-v%C3%A3-vofit-1-and-garmin-v%C3%A3-vofit-3-for-school-based-physical-activity-monitoring
#7
Adam Šimůnek, Jan Dygrýn, Lukáš Jakubec, Filip Neuls, Karel Frömel, Gregory John Welk
PURPOSE: Activity trackers are useful tools for physical activity promotion in adolescents, but robust validity evaluations have not been done under free-living conditions. This study evaluated the validity of the Garmin Vívofit 1 (G1) and Garmin Vívofit 3 (G3) in different settings and contexts. METHODS: The participants (girls: 52%, age: 15.9 [1.9] y) wore the G1 and G3 on their nondominant wrist and the Yamax pedometer on their right hip for a period of 1 week...
October 10, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30272530/comparison-of-habitual-physical-activity-and-sedentary-behavior-in-adolescents-and-young-adults-with-and-without-cerebral-palsy
#8
Ronit Aviram, Netta Harries, Anat Shkedy Rabani, Akram Amro, Ibtisam Nammourah, Muhammed Al-Jarrah, Yoav Raanan, Yeshayahu Hutzler, Simona Bar-Haim
PURPOSE: The comparison of habitual physical activity and sedentary time in teenagers and young adults with cerebral palsy (CP) with typically developed (TD) peers can serve to quantify activity shortcomings. METHODS: Patterns of sedentary, upright, standing, and walking components of habitual physical activity were compared in age-matched (16.8 y) groups of 54 youths with bilateral spastic CP (38 who walk with limitations and 16 who require mobility devices) and 41 TD youths in the Middle East...
October 1, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30269651/cardiac-biomarker-release-after-exercise-in-healthy-children-and-adolescents-a-systematic-review-and-meta-analysis
#9
Rafel Cirer-Sastre, Alejandro Legaz-Arrese, Francisco Corbi, Keith George, Jinlei Nie, Luis Enrique Carranza-García, Joaquim Reverter-Masià
PURPOSE: The authors evaluated the impact of acute exercise and 24-hour recovery on serum concentration of cardiac troponins T and I (cTnT and cTnI) and N-terminal fragment of the prohormone brain natriuretic peptide (NT-proBNP) in healthy children and adolescents. The authors also determined the proportion of participants exceeding the upper reference limits and acute myocardial infarction cutoff for each assay. METHOD: Web of Science, SPORTDiscus, MEDLINE, ScienceDirect, and Scopus databases were systematically searched up to November 2017...
September 30, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30251936/maturity-related-differences-in-systemic-pulmonary-and-localized-fatigue-threshold-among-youth-male-athletes
#10
Kyle S Beyer, Jeffrey R Stout, Michael J Redd, Kayla M Baker, Haley C Bergstrom, Jay R Hoffman, David H Fukuda
PURPOSE: To examine the reliability and the maturity-related differences of fatigue thresholds (FTs) among youth males. METHODS: Twenty-nine youth males (11-17 y) completed 2 ramp exercise tests on a cycle ergometer. Systemic FTs were calculated from gas exchange and ventilation variables. Localized FTs were calculated from electromyography and near-infrared spectroscopy of the vastus lateralis. All FTs were determined using the maximal distance method and expressed relative to maximal oxygen consumption...
September 25, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30208761/feasibility-and-preliminary-efficacy-of-a-teacher-facilitated-high-intensity-interval-training-intervention-for-older-adolescents
#11
Angus A Leahy, Narelle Eather, Jordan J Smith, Charles H Hillman, Philip J Morgan, Ronald C Plotnikoff, Michael Nilsson, Sarah A Costigan, Michael Noetel, David R Lubans
PURPOSE: This study was designed to assess the feasibility and preliminary efficacy of a teacher-facilitated high-intensity interval training intervention for older adolescents (ie, 16-18 y). METHODS: Two secondary schools from New South Wales, Australia were recruited, and participants (ie, grade 11 students; 16.2 [0.4] y) were randomized at the school level to the Burn 2 Learn intervention (n = 38), or a wait-list control group (n = 30). Teachers were trained to facilitate the delivery of the novel high-intensity interval training program, which involved 3 sessions per week (∼12-20 min) for 14 weeks...
September 12, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30180785/lower-limb-flexibility-in-children-with-duchenne-muscular-dystrophy-effects-on-functional-performance
#12
Lütfiye Akkurt, İpek Alemdaroğlu Gürbüz, Ayşe Karaduman, Öznur Tunca Yilmaz
OBJECTIVE: To investigate the effects of lower limb flexibility on the functional performance of children with Duchenne muscular dystrophy. METHODS: Thirty children, whose functional levels were at 1 or 2 according to the Brooke Lower Extremity Functional Classification Scale, were included in this study. The flexibilities of the hamstrings, hip flexors, tensor fascia latae, and gastrocnemius muscles were evaluated in the children's dominant lower limbs. The children's functional performance was assessed using 6-minute walk tests and timed performance tests...
September 5, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30376414/north-american-society-for-pediatric-exercise-medicine-naspem-2018-conference-abstracts
#13
(no author information available yet)
No abstract text is available yet for this article.
November 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30336749/effects-of-9-months-of-martial-arts-training-on-cardiac-autonomic-modulation-in-healthy-children-and-adolescents
#14
Vinícius Y B Suetake, Emerson Franchini, Bruna T C Saraiva, Anne K F da Silva, Aline F B Bernardo, Rayane L Gomes, Luiz Carlos M Vanderlei, Diego G D Christofaro
PURPOSE: The aim of the study was to evaluate the cardiac autonomic modulation after 9 months of martial arts practice in healthy children and adolescents. METHOD: The study included 59 children and adolescents who were divided into 3 groups: judo, Muay Thai, and control. Heart rate variability was measured by a heart rate monitor, model Polar RS800CX. The intervention occurred twice a week on nonconsecutive days, lasting 60 minutes each session. A 1-way analysis of variance was used to compare participants at baseline...
November 1, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30332930/exertional-dyspnea-in-childhood-is-there-an-iceberg-beneath-the-apex
#15
Paolo T Pianosi
This essay expounds on fundamental, quantitative elements of the exercise ventilation in children, which was the subject of the Tom Rowland Lecture given at the NASPEM 2018 Conference. Our knowledge about how much ventilation rises during aerobic exercise is reasonably solid; our understanding of its governance is a work in progress, but our grasp of dyspnea and ventilatory limitation in children (if it occurs) remains embryonic. This manuscript summarizes ventilatory mechanics during dynamic exercise, then proceeds to outline our current understanding of mechanisms of dyspnea, particularly during exercise (exertional dyspnea)...
November 1, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30332911/the-tom-rowland-series-a-forum-exploring-new-challenges-facing-pediatric-exercise-science-2018
#16
Bareket Falk
No abstract text is available yet for this article.
November 1, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30304982/moving-forward-with-accelerometer-assessed-physical-activity-two-strategies-to-ensure-meaningful-interpretable-and-comparable-measures
#17
Alex V Rowlands
Significant advances have been made in the measurement of physical activity in youth over the past decade. Monitors and protocols promote very high compliance, both night and day, and raw measures are available rather than "black box" counts. Consequently, many surveys and studies worldwide now assess children's physical behaviors (physical activity, sedentary behavior, and sleep) objectively 24 hours a day, 7 days a week using accelerometers. The availability of raw acceleration data in many of these studies is both an opportunity and a challenge...
November 1, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30269639/reliability-of-submaximal-yo-yo-tests-in-9-to-16-year-old-untrained-schoolchildren
#18
Susana Cristina Araújo Póvoas, Peter Krustrup, Carlo Castagna, Pedro Miguel Ribeiro da Silva, Manuel J Coelho-E-Silva, Rita Liliana Mendes Pereira, Malte Nejst Larsen
PURPOSE: To examine the reliability of age-adapted submaximal Yo-Yo (Yo-Yosubmax ) intermittent tests in untrained schoolchildren aged 9-16 years (n = 139; 72 boys and 67 girls) and within children with high and low percentage of body fat (%BF). METHODS: Yo-Yo intermittent recovery level 1 children's (YYIR1C), Yo-Yo intermittent endurance level 1 (YYIE1), and Yo-Yo intermittent endurance level 2 (YYIE2) tests were performed 7 days apart by 9- to 11-, 12- to 13-, and 14- to 16-year-old children, respectively...
November 1, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30205783/physical-activity-and-sedentary-behaviors-of-children-in-family-child-care-homes-are-there-opportunities-for-improvement
#19
Stephanie Mazzucca, Cody Neshteruk, Regan Burney, Amber E Vaughn, Derek Hales, Truls Østbye, Dianne Ward
PURPOSE: Many children attend family child care homes (FCCHs), an important setting to influence children's physical activity (PA) and sedentary behavior (SB). This study assessed children's PA and SB while in FCCHs, characteristics of the FCCH PA environment, and relationships between the environment and child PA and SB. METHOD: Children ages 1.5-4.0 years (n = 495) were recruited from 165 FCCHs in North Carolina. Children's moderate to vigorous PA and SB were measured via accelerometry for 3 days...
November 1, 2018: Pediatric Exercise Science
https://www.readbyqxmd.com/read/30205762/energy-balance-coexists-with-disproportionate-macronutrient-consumption-across-pretraining-during-training-and-posttraining-among-indian-junior-soccer-players
#20
Keren Susan Cherian, Ashok Sainoji, Balakrishna Nagalla, Venkata Ramana Yagnambhatt
PURPOSE: To evaluate energy expenditure, energy intake, and nutrient adequacy of Indian junior soccer players. METHOD: Forty junior national-level soccer players (Under-12 and Under-16 age groups) were assessed for 3-day weighed food records and 3-day energy expenditure. Energy and nutrient intake was analyzed from food records, and energy expenditure was measured using a portable metabolic analyzer and activity records. Nutrient adequacy was determined by comparing intake with prevailing recommendations...
November 1, 2018: Pediatric Exercise Science
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