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The New Era FitScore test: a comprehensive general fitness assessment
Era Deva1,2, Milaim Berisha1, Pablo Prieto-González3
1Faculty of Sport and Movement Science, University for Business and Technology (UBT), Prishtina, Kosovo.
Background:
This study developed a comprehensive fitness test, the New Era FitScore (NEFS), integrating full-body movement with reactive agility and neuromotor components.
Methods:
Ninety-six participants completed the NEFS: a 90-s circuit combining burpees with reactive sprints triggered by randomized Witty SEM lights. Reliability was assessed using Intraclass Correlation Coefficient (ICC) and Bland-Altman (bias, 95% limits), and predictors of NEFS performance were examined using linear regression.
Results:
Body composition showed significant negative correlations with NEFS across all groups. In female students, fat percentage demonstrated the strongest association (r = -0.631, p = 0.002), followed by BMI (r = -0.535, p = 0.010). Male students showed significant correlations with body mass (r = -0.578, p = 0.015) and BMI (r = -0.578, p = 0.015). In sedentary women, fat percentage again showed the highest correlation (r = -0.638, p < 0.001), and regression analysis revealed that fat percentage explained 39%-40% of NEFS variance across female groups. Among U15 soccer players, NEFS correlated strongly with Yo-Yo test distance and estimated VO₂max (r = 0.742, p = 0.002), while body composition showed weaker associations. Overall test-retest reliability was high [ICC (2,1) = 0.940, 95% CI:.906-0.961] and was broadly consistent across groups, with ICC values ranging from.812 to.973.
Conclusion:
Based on the study sample and analysis, the NEFS is a valid and reliable multidimensional assessment evaluating muscular strength-endurance, aerobic capacity, agility, and coordination in a single 90 s protocol. With favorable neuromuscular properties and minimal equipment needs, it is a practical tool for fitness evaluation in sports, health, and other communities.
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