- Tytuł:
- A new reliable device to assess trunk extensors strength
- Autorzy:
-
Reyes-Ferrada, Waleska
Chirosa-Ríos, Luis
Chirosa-Ríos, Ignacio
Martínez-García, Darío
Barboza-Gonzalez, Paola
Ulloa-Díaz, David
Jerez-Mayorga, Daniel
Rodríguez-Perea, Ángela - Tematy:
-
isokinetic
core
strength
reproducibility
dynamometer - Pokaż więcej
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Powiązania:
- https://bibliotekanauki.pl/articles/55622108.pdf Link otwiera się w nowym oknie
- Opis:
- This study aimed to examine the reliability of trunk extensor strength assessment with a functional electromechanical dynamometer (FEMD). Methods: Thirty-one men performed strength assessment at different velocities (V) (V1 = 0.15 m·s−1, V2 = 0.30 m·s-1, V3 = 0.45 m·-1) and range of movement (R) (R1 = 25% cm; R2 = 50% cm), and isometric contraction at 90º. Reliability was obtained through the intraclass correlation coefficient (ICC), typical error (TE), and coefficient of variation (CV). Results: The absolute reliability provided stable repeatability of the average eccentric strength in the V1R1 condition (CV = 9.52%) and the maximum eccentric strength in V1R1 (CV = 9.63%) and V2R2 (CV = 9.66%). The relative reliability of the trunk extensor’s average strength was good (ICC = 0.77–0.83) for concentric and good (ICC = 0.78–0.85) and moderate (ICC = 0.67–0.74) for eccentric contraction. Also, good (ICC = 0.77–0.81) and moderate (ICC = 0.55–0.74) reliability of the maximum strength were obtained for concentric and eccentric contraction. The most reliable manifestation to evaluate the concentric (CV = 11.33%) and eccentric (CV = 9.52%) strength was the average strength in the V1R1 condition and the maximum strength (CV = 10.29%) to isometric assessment. The average concentric strength in the V2R2 condition (r = 0.69) and the maximum eccentric strength in the V1R1 condition (r = 0.65) were the best related to the maximum isometric strength. Conclusion: FEMD is a highly reliable device to evaluate trunk extensors strength.
- Dostawca treści:
- Biblioteka Nauki
Artykuł