Isokinetic Strength, Vertical Jump Performance, and Strength Differences in First Line Professional Firefighters Competing in Fire Sport

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dc.contributor.authorMiratsky, Petr
dc.contributor.authorGryc, Tomas
dc.contributor.authorCabell, Lee
dc.contributor.authorZahalka, Frantisek
dc.contributor.authorBrozka, Matej
dc.contributor.authorVarjan, Matej
dc.contributor.authorMaly, Tomas
dc.date.accessioned2021-07-30T14:40:40Z
dc.date.available2021-07-30T14:40:40Z
dc.date.issued2021-03-26
dc.description.abstractThe purpose of our study was to investigate peak torque (PT) of knee extensors (KE) and knee flexors (KF), bilateral and unilateral strength asymmetries in isokinetic testing and vertical jump height (JH), vertical ground reaction force (VGRF), and force differences (ΔVGRF) between legs during different jump tests in professional first-line firefighters (n = 15) competing in fire sports disciplines. There was a significant effect of jump type on JH (F2,44 = 7.23, p < 0.05), VGRF (F2,44 = 16.03, p < 0.05) and ΔVGRF (F2,44 = 3.45, p < 0.05). Professional firefighters achieved a mean JH of 50.17 cm in the countermovement jump free arms and high PT of KEs (3.15 Nm/kg). No significant differences (p > 0.05) and small effect sizes (d < 0.3) were found between the legs when PTs were assessed. We found a slightly higher (d = 0.53) unilateral strength ratio in non-dominant legs (58.12 ± 10.26%) compared to dominant legs (55.31 ± 7.51%). No effect of laterality was found among limb comparisons, but a higher unilateral isokinetic strength ratio was found in non-dominant legs of firefighters. A high level of strength (PT of KEs > 3 times body weight) and vertical jump performance is comparable to the performance of elite athletic populations.
dc.description.departmentHealth and Human Performance
dc.formatText
dc.format.extent13 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationMiratsky, P., Gryc, T., Cabell, L., Zahalka, F., Brozka, M., Varjan, M., & Maly, T. (2021). Isokinetic strength, vertical jump performance, and strength differences in first line professional firefighters competing in fire sport. International Journal of Environmental Research and Public Health, 18(7), 3448.
dc.identifier.doihttps://doi.org/10.3390/ijerph18073448
dc.identifier.issn1660-4601
dc.identifier.urihttps://hdl.handle.net/10877/14135
dc.language.isoen
dc.publisherMultidisciplinary Digital Publishing Institute
dc.rights.holder© 2021 The Authors.
dc.rights.licenseThis work is licensed under a Creative Commons Attribution 4.0 International License.
dc.sourceInternational Journal of Environmental Research and Public Health, 2021, Vol. 18, No. 7, Article 3448.
dc.subjecttactical population
dc.subjectperformance
dc.subjectfire sport
dc.subjectasymmetries
dc.titleIsokinetic Strength, Vertical Jump Performance, and Strength Differences in First Line Professional Firefighters Competing in Fire Sport
dc.typeArticle

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