Reliability of five trunk flexion and extension endurance field-based tests in high school-aged adolescents: ISQUIOS Programme

Martinez-Romero, Maria T, Ayala, Francisco, Aparicio-Sarmiento, Alba, De Ste Croix, Mark B ORCID: 0000-0001-9911-4355 and Sainz de Baranda, Pilar (2021) Reliability of five trunk flexion and extension endurance field-based tests in high school-aged adolescents: ISQUIOS Programme. Journal of Sports Sciences. (In Press)

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Abstract

This study aimed to explore the inter-session reliability of the measures obtained from 2 trunk extension (Biering-Sorensen and Dynamic Extensor Endurance (DEE) tests) and 3 trunk flexion (Ito, Side Bridge and Bench Trunk Curl-Up (BTC) tests) endurance field-based tests in adolescents by sex and age. A total of 208 (males, n = 100; females, n = 108) adolescents (ranging from 12 to 18 years) performed all the field-based tests on 2 separate testing sessions, 7-days apart. The inter-session reliability scores were explored for the total sample and by sex and age groups through relative reliability (intraclass correlation coefficient (ICC)), inter-session differences (systematic bias) and precision of measurements (i.e. absolute reliability) (standard error of measurement expressed as a percentage of the mean score (CVTE) and minimal detectable change (MDC95)). The sensitivity of each test was also assessed through the smallest worthwhile percentage change (SWC). No relevant sex and age groups differences were found for either test-retest reliability or sensitivity in each test, so the grouped scores were considered as generalizable for this cohort of high school-aged adolescents. Most of the trunk endurance measures demonstrated acceptable relative reliability (ICCs ranged from 0.75 to 0.94). However, significant inter-session differences were identified for measures from the DEE and BTC tests. Likewise, the precision of the measurement of each field-based test was poor (CVTE ranged from 11.3 to 24.4%) with the MDC95 revealing that changes higher than 42% for trunk extension endurance tests and 31.4% for trunk flexion endurance tests after an intervention are required to indicate a significant change above measurement error. All tests were sensitive enough to detect moderate to large changes in trunk muscle endurance. Therefore, the findings from this study indicate that only the BTC test demonstrates acceptable inter-session reliability (ICC > 0.9, CVTE ~ 10%, MDC95 ~ 30%) to monitor the changes in trunk endurance scores that may be expected in adolescents after performing an intervention program. The use of supervised familiarization sessions before performing the tests and strong encouragement to perform a maximal effort in each test may be helpful strategies to improve the reliability scores.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: Assessment; Core endurance; Precision of measurement; Youth
Subjects: G Geography. Anthropology. Recreation > GV Recreation Leisure > GV557 Sports
Q Science > QP Physiology > QP301.H75 Physiology. Sport
Divisions: Schools and Research Institutes > School of Sport and Exercise > Applied Sport & Exercise Sciences
Research Priority Areas: Sport, Exercise, Health & Wellbeing
Depositing User: Rhiannon Goodland
Date Deposited: 16 Mar 2021 14:45
Last Modified: 19 Apr 2021 13:32
URI: http://eprints.glos.ac.uk/id/eprint/9476

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