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Sport Sciences for HealthBackground Enhanced muscular strength has been widely acknowledged as a fundamental determinant of improved performance in the lower extremities. However, the specific impact of ankle strength on explosive strength and balance remains inadequately ...
Pantelis Theodoros Nikolaidis +2 more
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Using the Reactive Strength Index Modified to Evaluate Plyometric Performance
Journal of Strength and Conditioning Research, 2010The ability to develop force quickly is a requisite ability in most sports. The reactive strength index (RSI) has been developed as a measure of explosive strength and is derived by evaluating jump height divided by ground contact time during the depth jump (DJ).
William P, Ebben, Erich J, Petushek
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Interday Reliability of the Reactive Strength Index and Optimal Drop Height
Journal of Strength and Conditioning Research, 2017Abstract Byrne, DJ, Browne, DT, Byrne, PJ, and Richardson, N. Interday reliability of the reactive strength index and optimal drop height. J Strength Cond Res 31(3): 721–726, 2017—The purpose of this study was to investigate the interday reliability of the reactive strength index (RSI) and optimal drop height (ODH) identification from ...
Damien J, Byrne +3 more
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Journal of Strength & Conditioning Research, 2021
Abstract Montalvo, S, Gonzalez, MP, Dietze-Hermosa, M, Eggleston, JD, and Dorgo, S. Common vertical jump and reactive strength index measuring devices: A validity and reliability analysis. J Strength Cond Res 35(5): 1234–1243, 2021—Several field-test devices exist to assess vertical jump, but they either lack proper validation or have been ...
Samuel, Montalvo +4 more
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Abstract Montalvo, S, Gonzalez, MP, Dietze-Hermosa, M, Eggleston, JD, and Dorgo, S. Common vertical jump and reactive strength index measuring devices: A validity and reliability analysis. J Strength Cond Res 35(5): 1234–1243, 2021—Several field-test devices exist to assess vertical jump, but they either lack proper validation or have been ...
Samuel, Montalvo +4 more
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The Effect Of Training On Reactive Strength Index Parameters
2023Bu çalışmanın amacı, alp disiplini sporcularının kontrast antrenmanlarının reaktif kuvvet indeksi parametresi üzerine etkisinin incelenmesidir. Çalışmaya toplam 40 sporcu dahil edilmiş olup, sporcuların boy ölçümleri charder boy ölçüm cihazı ve Tanita TBF 300 cihazı ile ölçülmüştür. Reaktif kuvvet indeksi için drop jump test protokolü ile 40 cm’lik bir
ATASEVER, Gökhan +1 more
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Journal of Sports Sciences, 2009
The aim of the study was to assess the reliability of a mobile contact mat in measuring a range of stretch-shortening cycle parameters in young adolescents. Additionally, vertical leg stiffness using contact mat data was validated against a criterion method using force-time data.
Lloyd, Rhodri S. +3 more
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The aim of the study was to assess the reliability of a mobile contact mat in measuring a range of stretch-shortening cycle parameters in young adolescents. Additionally, vertical leg stiffness using contact mat data was validated against a criterion method using force-time data.
Lloyd, Rhodri S. +3 more
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Journal of Nuclear Science and Technology, 2000
A new neutron inverse kinetics method has been proposed to compute both reactivity and source strength using only noise-containing reactor power signals in a subcritical state. The method is applicable to cases when the effective source strength varies with a change in reactivity.
Akihiro KITANO +2 more
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A new neutron inverse kinetics method has been proposed to compute both reactivity and source strength using only noise-containing reactor power signals in a subcritical state. The method is applicable to cases when the effective source strength varies with a change in reactivity.
Akihiro KITANO +2 more
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Journal of Strength and Conditioning Research, 2012
The purpose of this study was to investigate the effects of 2 stretching protocols on stretch-shortening cycle performance in female Division I soccer players and female club rugby players. Fifteen soccer and rugby players (20.1 ± 5.9 years, 170.5 ± 14.2 cm, 70.4 ± 22.3 kg) participated in 3 test sessions with different treatments.
Kira M, Werstein, Robin J, Lund
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The purpose of this study was to investigate the effects of 2 stretching protocols on stretch-shortening cycle performance in female Division I soccer players and female club rugby players. Fifteen soccer and rugby players (20.1 ± 5.9 years, 170.5 ± 14.2 cm, 70.4 ± 22.3 kg) participated in 3 test sessions with different treatments.
Kira M, Werstein, Robin J, Lund
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Relationship Between Lower and Upper Body Reactive Strength Indexes in Boxers
2023The Reactive Strength Index (RSI) is used to determine the load and intensity of plyometric training in sports that require explosive strength. Although upper extremity plyometrics are used in athletic’ training programmes, there are no studies investigating upper extremity RSI.
Anli, Fatma +6 more
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Journal of Strength and Conditioning Research, 2012
Although previous pediatric research has reported performance improvements in muscular power, agility, speed, and rate-of-force development after exposure to plyometric training, the effects on reactive strength index (RSI) and leg stiffness remain unclear.
Lloyd, Rhodri S. +3 more
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Although previous pediatric research has reported performance improvements in muscular power, agility, speed, and rate-of-force development after exposure to plyometric training, the effects on reactive strength index (RSI) and leg stiffness remain unclear.
Lloyd, Rhodri S. +3 more
openaire +3 more sources