TY - JOUR
T1 - Reliability of submaximal Yo-Yo tests in 9- to 16-year-old untrained schoolchildren
AU - Araújo Póvoas, Susana Cristina
AU - Krustrup, Peter
AU - Castagna, Carlo
AU - Ribeiro da Silva, Pedro Miguel
AU - Coelho-e-Silva, Manuel J.
AU - Mendes Pereira, Rita Liliana
AU - Larsen, Malte Nejst
PY - 2018/11
Y1 - 2018/11
N2 - PURPOSE: To examine the reliability of age-adapted submaximal Yo-Yo (Yo-Yo
submax) 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. Reliability was tested for Yo-Yo
submax heart rate (HR
submax), peak HR, and maximal distance.
RESULTS: HR
submax typical errors of measurement (TEM) in YYIR1C, YYIE1, and YYIE2 were 2.2% (1.7%-2.9%), 2.4% (1.9%-3.3%), 1.9% (1.6%-2.5%) and 2.4% (1.9%-3.3%), 2.4% (1.9%-3.2%), 1.9% (1.5%-2.4%) for girls and boys, respectively. HR
submax intraclass correlation coefficient values were good to excellent (.62-.87) in all age groups and in schoolchildren of different %BF. TEM for HR
submax ranged from 2.1% to 2.3% in high and low %BF groups. Maximal distance intraclass correlation coefficients were excellent and TEM values ranged from 11% to 12% in both %BF groups. HR
submax was moderately to largely associated (r = -.46 to -.64; P < .002) with Yo-Yo maximal distance across the age groups.
CONCLUSION: Yo-Yo
submax tests are a reliable tool providing useful and sustainable aerobic performance testing in physical education, irrespective of individual %BF.
AB - PURPOSE: To examine the reliability of age-adapted submaximal Yo-Yo (Yo-Yo
submax) 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. Reliability was tested for Yo-Yo
submax heart rate (HR
submax), peak HR, and maximal distance.
RESULTS: HR
submax typical errors of measurement (TEM) in YYIR1C, YYIE1, and YYIE2 were 2.2% (1.7%-2.9%), 2.4% (1.9%-3.3%), 1.9% (1.6%-2.5%) and 2.4% (1.9%-3.3%), 2.4% (1.9%-3.2%), 1.9% (1.5%-2.4%) for girls and boys, respectively. HR
submax intraclass correlation coefficient values were good to excellent (.62-.87) in all age groups and in schoolchildren of different %BF. TEM for HR
submax ranged from 2.1% to 2.3% in high and low %BF groups. Maximal distance intraclass correlation coefficients were excellent and TEM values ranged from 11% to 12% in both %BF groups. HR
submax was moderately to largely associated (r = -.46 to -.64; P < .002) with Yo-Yo maximal distance across the age groups.
CONCLUSION: Yo-Yo
submax tests are a reliable tool providing useful and sustainable aerobic performance testing in physical education, irrespective of individual %BF.
KW - Aerobic performance
KW - Body fat
KW - Heart rate
KW - Intense intermittent exercise
KW - Reproducibility
KW - Heart Rate
KW - Reproducibility of Results
KW - Exercise Test/standards
KW - Humans
KW - Male
KW - Physical Endurance
KW - Adolescent
KW - Female
KW - Physical Fitness
KW - Child
U2 - 10.1123/pes.2017-0139
DO - 10.1123/pes.2017-0139
M3 - Journal article
C2 - 30269639
AN - SCOPUS:85055614246
SN - 0899-8493
VL - 30
SP - 537
EP - 545
JO - Pediatric Exercise Science
JF - Pediatric Exercise Science
IS - 4
ER -