Critical velocity as a measure of aerobic fitness in women's rugby sevens

Anthea Clarke, Jarrod Presland, Ben Rattray, David Pyne

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Objectives: To compare a field-based critical velocity running test to routine laboratory (treadmill VO 2 max test) and field-based (Yo-Yo intermittent recovery test, Yo-Yo IR1) aerobic fitness tests in women's rugby sevens (7's) players. To quantify the degree of association between field-based fitness test scores and GPS-derived analysis of performance data in competition. Design: Single cohort, cross-sectional study involving 22 female Australian Rugby 7's National team players. Methods: Players underwent fitness testing comparing the critical velocity test (100m, 400m, 1500m runs) to the Yo-Yo IR1 and a treadmill VO 2 max test. GPS data was obtained during the National Championships using a subgroup of 12 players and compared with each player's fitness test scores. Results: The critical velocity test was highly correlated with the Yo-Yo IR1 test (r=0.86, 0.69-0.94; 90% confidence interval) and all variables of the VO 2 max test, however mean values were substantially different between tests (Yo-Yo IR1: 4.3±0.1ms -1, vVO 2 max: 3.7±0.3ms -1, critical velocity: 3.2±0.3ms -1). Average speed, obtained from GPS data, was largely correlated with both the Yo-Yo IR1 (r=0.62, 0.10-0.87) and critical velocity (r=0.51, -0.06-0.83) tests. Total game distance correlated moderately with the Yo-Yo IR1 (r=0.49, -0.09-0.82) and critical velocity (r=0.36, -0.25-0.76). Conclusions: The critical velocity test is an appropriate aerobic fitness test, yields results similar to the Yo-Yo IR1, and correlates moderately with rugby 7's game data. However the Yo-Yo IR1 and critical velocity test scores cannot be used interchangeably.

Original languageEnglish
Pages (from-to)144-148
Number of pages5
JournalJournal of Science and Medicine in Sport
Volume17
Issue number1
DOIs
Publication statusPublished - 2014

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title = "Critical velocity as a measure of aerobic fitness in women's rugby sevens",
abstract = "Objectives: To compare a field-based critical velocity running test to routine laboratory (treadmill VO 2 max test) and field-based (Yo-Yo intermittent recovery test, Yo-Yo IR1) aerobic fitness tests in women's rugby sevens (7's) players. To quantify the degree of association between field-based fitness test scores and GPS-derived analysis of performance data in competition. Design: Single cohort, cross-sectional study involving 22 female Australian Rugby 7's National team players. Methods: Players underwent fitness testing comparing the critical velocity test (100m, 400m, 1500m runs) to the Yo-Yo IR1 and a treadmill VO 2 max test. GPS data was obtained during the National Championships using a subgroup of 12 players and compared with each player's fitness test scores. Results: The critical velocity test was highly correlated with the Yo-Yo IR1 test (r=0.86, 0.69-0.94; 90{\%} confidence interval) and all variables of the VO 2 max test, however mean values were substantially different between tests (Yo-Yo IR1: 4.3±0.1ms -1, vVO 2 max: 3.7±0.3ms -1, critical velocity: 3.2±0.3ms -1). Average speed, obtained from GPS data, was largely correlated with both the Yo-Yo IR1 (r=0.62, 0.10-0.87) and critical velocity (r=0.51, -0.06-0.83) tests. Total game distance correlated moderately with the Yo-Yo IR1 (r=0.49, -0.09-0.82) and critical velocity (r=0.36, -0.25-0.76). Conclusions: The critical velocity test is an appropriate aerobic fitness test, yields results similar to the Yo-Yo IR1, and correlates moderately with rugby 7's game data. However the Yo-Yo IR1 and critical velocity test scores cannot be used interchangeably.",
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Critical velocity as a measure of aerobic fitness in women's rugby sevens. / Clarke, Anthea; Presland, Jarrod; Rattray, Ben; Pyne, David.

In: Journal of Science and Medicine in Sport, Vol. 17, No. 1, 2014, p. 144-148.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Critical velocity as a measure of aerobic fitness in women's rugby sevens

AU - Clarke, Anthea

AU - Presland, Jarrod

AU - Rattray, Ben

AU - Pyne, David

PY - 2014

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AB - Objectives: To compare a field-based critical velocity running test to routine laboratory (treadmill VO 2 max test) and field-based (Yo-Yo intermittent recovery test, Yo-Yo IR1) aerobic fitness tests in women's rugby sevens (7's) players. To quantify the degree of association between field-based fitness test scores and GPS-derived analysis of performance data in competition. Design: Single cohort, cross-sectional study involving 22 female Australian Rugby 7's National team players. Methods: Players underwent fitness testing comparing the critical velocity test (100m, 400m, 1500m runs) to the Yo-Yo IR1 and a treadmill VO 2 max test. GPS data was obtained during the National Championships using a subgroup of 12 players and compared with each player's fitness test scores. Results: The critical velocity test was highly correlated with the Yo-Yo IR1 test (r=0.86, 0.69-0.94; 90% confidence interval) and all variables of the VO 2 max test, however mean values were substantially different between tests (Yo-Yo IR1: 4.3±0.1ms -1, vVO 2 max: 3.7±0.3ms -1, critical velocity: 3.2±0.3ms -1). Average speed, obtained from GPS data, was largely correlated with both the Yo-Yo IR1 (r=0.62, 0.10-0.87) and critical velocity (r=0.51, -0.06-0.83) tests. Total game distance correlated moderately with the Yo-Yo IR1 (r=0.49, -0.09-0.82) and critical velocity (r=0.36, -0.25-0.76). Conclusions: The critical velocity test is an appropriate aerobic fitness test, yields results similar to the Yo-Yo IR1, and correlates moderately with rugby 7's game data. However the Yo-Yo IR1 and critical velocity test scores cannot be used interchangeably.

KW - Field-based testing

KW - GPS analysis

KW - Maximal oxygen uptake

KW - Movement patterns

KW - Yo-Yo intermittent recovery test

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