Home > Riviste > The Journal of Sports Medicine and Physical Fitness > Fascicoli precedenti > Articles online first > The Journal of Sports Medicine and Physical Fitness 2018 Jan 04

ULTIMO FASCICOLO
 

ARTICLE TOOLS

Publication history
Estratti
Per citare questo articolo

THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

Rivista di Medicina, Traumatologia e Psicologia dello Sport


Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,215


eTOC

 

The Journal of Sports Medicine and Physical Fitness 2018 Jan 04

DOI: 10.23736/S0022-4707.18.07942-2

Copyright © 2018 EDIZIONI MINERVA MEDICA

lingua: Inglese

Physiological and technical commitment during a 300-m in-line skating trial in athletes of different age categories

Pietro L. INVERNIZZI 1, Raffaele SCURATI 1, Matteo CROTTI 1, Andrea BOSIO 2, Stefano LONGO 1 , Fabio ESPOSITO 1

1 Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy; 2 Human Performance Laboratory, Mapei Sport Centre, Olgiate Olona, Varese, Italy


PDF  


BACKGROUND: This study investigated the differences in strength, technique and time performance in in-line skaters of three age categories during a 300 m trial. Possible correlations among these variables were also assessed.
METHODS: Thirty-six elite in-line skaters (Cadets, Juniors and Seniors, n=12 each; 14±1, 16±1, and 24±6 years of age, respectively) performed a 300-m trial on an outdoor oval track. Total time (Ttot), 100-m fractions and duration of each skating technique (initial acceleration phase, straight push and cross-over) were recorded. A squat jump (SJ) was performed before and after the trial. Heart rate, blood lactate concentration ([La-]) and rate of perceived exertion (RPE) were collected before, during and at the end of the trial.
RESULTS: Ttot was longer and SJ lower in Cadets compared to the other groups. Seniors employed the cross-over technique for a longer period than the straight push technique, compared to Juniors and Cadets. Ttot correlated negatively with SJ in Seniors. The number of significant correlations between skating techniques’ duration and both Ttot and SJ increased with age category. No differences among groups were found for heart rate, [La-] and RPE.
CONCLUSIONS: With increasing age category, leg strength appeared to be the more related aspect to skating performance. To improve 300-m in-line skating performance, trainers should pay particular attention to the enhancement of leg strength and cross-over skating technique.


KEY WORDS: Motor control - Training - Strength - Skill

inizio pagina

Publication History

Article first published online: January 4, 2018
Manuscript accepted: January 2, 2018
Manuscript revised: December 1, 2017
Manuscript received: July 9, 2017

Per citare questo articolo

Invernizzi PL, Scurati R, Crotti M, Bosio A, Longo S, Esposito F. Physiological and technical commitment during a 300-m in-line skating trial in athletes of different age categories. J Sports Med Phys Fitness 2018 Jan 04. DOI: 10.23736/S0022-4707.18.07942-2

Corresponding author e-mail

stefano.longo@unimi.it