Home > Riviste > The Journal of Sports Medicine and Physical Fitness > Fascicoli precedenti > Articles online first > The Journal of Sports Medicine and Physical Fitness 2017 Jul 25

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 2017 Jul 25

DOI: 10.23736/S0022-4707.17.07563-6

Copyright © 2017 EDIZIONI MINERVA MEDICA

lingua: Inglese

The use of metabolic power to assess physical demands in soccer: how does it differ from the traditional approach through speed running?

Francisco I. MARTÍNEZ-CABRERA 1, 2 , Francisco J. NÚÑEZ-SÁNCHEZ 1

1 Faculty of Sport, University Pablo de Olavide, Seville, Spain; 2 Department of Strength and Conditioning, Football Club Petrolul, Ploiesti, Romania


PDF  


BACKGROUND: Metabolic power and speed running are in the top-10-ranked variables used to quantify the physical demand in soccer matches or training practices. The purpose of this study were 1) to compare metabolic power (MP) and the traditional approach using speed running during soccer matches in absolute values and 2) in zones of intensity in function of the playing positions.
METHODS: Thirty-eight professional soccer players were analysed during 18 friendly matches from 4 preseasons (n=300) and divided into 5 groups of playing positions: central defender (CD) (n=64), wide defender (WD) (n=55), central midfielder (CM) (n=58), wide attacker (WA) (n=70) and attacker (AT) (n=53). The individual profiles to each playing positions were assessed using MP and speed running approaches. The magnitude of change was substantial when there was a ≥75% likelihood of the effect. The effect size was also calculated using a confidence interval of 90%.
RESULTS: In absolute values, CMs and WAs had substantially greater values than did the other positions, with CMs having the highest values in both approaches and an identical relationship between the positions in both approaches. In categories of intensity, medium-low intensity displayed differences between the approaches; the physical demands of ATs and CDs were lower using the traditional approach but were higher than the other playing positions when assessed using MP. No differences were found at low, medium or high intensities.
CONCLUSIONS: The MP and energy expenditure reported differences at medium-low intensity compared to the speed running traditional approach between playing positions. However, the other intensities did not report differences compared to the traditional approach in the different playing positions.


KEY WORDS: Energy cost - GPS - Match-analysis

inizio pagina

Publication History

Article first published online: July 25, 2017
Manuscript accepted: July 24, 2017
Manuscript revised: July 11, 2017
Manuscript received: March 12, 2017

Per citare questo articolo

Martínez-Cabrera FI, Núñez-Sánchez FJ. The use of metabolic power to assess physical demands in soccer: how does it differ from the traditional approach through speed running? J Sports Med Phys Fitness 2017 July 25. DOI: 10.23736/S0022-4707.17.07563-6

Corresponding author e-mail

fimarcab@outlook.com