A comparison of the isometric midthigh pull and isometric squat: intraday reliability, usefulness, and the magnitude of difference between tests
| Autor: | Andrew J. Harrison, Eamonn P. Flanagan, G. Gregory Haff, Thomas M. Comyns, Claire J. Brady |
|---|---|
| Přispěvatelé: | IRC |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male explosive strength maximum strength Correlation coefficient Intraclass correlation Coefficient of variation Magnitude (mathematics) Physical Therapy Sports Therapy and Rehabilitation Squat Isometric exercise Impulse (physics) Young Adult 03 medical and health sciences Sex Factors 0302 clinical medicine Isometric Contraction Humans isometric strength Knee Orthopedics and Sports Medicine Muscle Strength Reliability (statistics) Simulation Mathematics Orthodontics Hip Reproducibility of Results 030229 sport sciences force–time curve Cross-Sectional Studies Thigh performance testing Exercise Test Female 030217 neurology & neurosurgery |
| Popis: | Purpose: To examine the reliability and usefulness of the isometric midthigh pull (IMTP) and isometric squat (ISqT) performed at the same knee and hip angles. The scores produced in each test were compared to determine the magnitude of differences between tests. Methods: Twenty-six male and female athletes (age, 23.6 [4.3] y; height, 1.75 [0.07] m; and body mass, 68.8 [9.7] kg) performed 2 maximal repetitions of the IMTP and ISqT following a specific warm-up. Results: Maximum force, absolute peak force (PF), relative PF, allometrically scaled PF, rate of force development (0–200 and 0–250 ms), and impulse (0–300 ms) were deemed reliable (intraclass correlation coefficient [ICC] ≥.86 and coefficient of variation [CV] ≤9.4%) in the IMTP and ISqT based on predetermined criteria (ICC ≥.8 and CV ≤10%). Impulse (0–200 and 0–250 ms) was reliable in the ISqT (ICC ≥.92 and CV ≤9.9%). Participants produced significantly (P P = .042) during the ISqT, with no significant differences among male participants (P = .245). Both tests are capable of detecting changes in performance in maximum force and absolute PF. Conclusions: Both tests are reliable for non-time-dependent maximal strength measures when measured at the same knee and hip angles. The ISqT may be preferred when coaches want to test an athlete’s true maximum lower-limb strength, especially female athletes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|