Reliability and Validity of the 30-15 Intermittent Field Test With and Without a Soccer Ball
Objective: The purpose of this study was to examine the reliability and validity of the 30-15 Intermittent Field Test (30-15 IFT ) with and without a ball. Methods: Twenty-four collegiate female soccer players (19.46 ± 1.22 years; 167.01 ± 7.23 cm; 60.95 ± 7.84 kg) performed 1 trial of the Yo-Yo Int...
Saved in:
Published in | Research quarterly for exercise and sport Vol. 94; no. 4; pp. 1001 - 1010 |
---|---|
Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Routledge
02.10.2023
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Objective: The purpose of this study was to examine the reliability and validity of the 30-15 Intermittent Field Test (30-15
IFT
) with and without a ball. Methods: Twenty-four collegiate female soccer players (19.46 ± 1.22 years; 167.01 ± 7.23 cm; 60.95 ± 7.84 kg) performed 1 trial of the Yo-Yo Intermittent Recovery (YYIR) test, 3 trials of the 30-15
IFT
, and 3 trials of the 30-15
IFT
with a ball (30-15
IFT-B
), separated by a minimum 48 hours. Maximal intermittent running velocity (V
IFT
), heart rate at exhaustion (HR
peak
), and rating of perceived exertion (RPE) were collected. Results: Intraclass correlation coefficients (ICCs) between trials demonstrated good reliability during the 30-15
IFT
in V
IFT
(ICC = 0.88) and HR
peak
(ICC = 0.89), in addition to the 30-15
IFT-B
V
IFT
(ICC = 0.83) and HR
peak
(ICC = 0.87). V
IFT
was significantly reduced in 30-15
IFT-B
(15.82 km h
−1
) compared to 30-15
IFT
(17.52 km h
−1
; p < .001), regardless of trial. HR and RPE were significantly greater in 30-15
IFT
compared to 30-15
IFT-B
(p < .05). Estimated maximal oxygen consumption (VO
2
max) YYIR and estimated VO
2
max of 30-15
IFT
and 30-15
IFT-B
was very strongly (r = 0.82) and strongly (r = 0.68) correlated. Conclusion: The 30-15
IFT
is considered valid and reliable and the 30-15
IFT-B
was reliable in female soccer players. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0270-1367 2168-3824 2168-3824 |
DOI: | 10.1080/02701367.2022.2098230 |