Journal Article
Rate of torque development as a discriminator of playing level in collegiate female soccer players.
01 Sep 2022
- Vol. 22, Iss: 3, pp 326-335
6
TL;DR: In this paper , the efficacy of isometric knee extension and flexion peak torque and rate of torque development (RTD) variables to distinguish starters from non-starters in collegiate female soccer players was examined.
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Abstract: This study aimed to examine the efficacy of isometric knee extension and flexion peak torque and rate of torque development (RTD) variables to distinguish starters from non-starters in collegiate female soccer players.Eleven starters (20±2 years) and 13 non-starters (19±1 years) performed three isometric maximal voluntary contractions of the knee extensors and flexors. Peak torque, peak RTD, and RTD at 0-100 (RTD100) and 0-200 (RTD200) ms were obtained from each contraction.The starters produced significantly greater (P=0.002-0.015) knee extension and flexion peak RTD, RTD100, and RTD200 values than the non-starters. There were no significant differences (P>0.050) between the starters and non-starters for peak torque. Discriminant analysis revealed thresholds of 9.36, 7.98, and 6.97 Nm⋅s-1⋅kg-1 for knee extension RTD200 and knee flexion peak RTD and RTD100, respectively. These thresholds showed 81.8% sensitivity and 76.9 to 92.3% specificity for identifying playing group membership.Our findings indicate that RTD may be a better parameter than peak torque at differentiating between playing level in collegiate female soccer players. The discriminant analysis thresholds for the RTD variables demonstrated good sensitivity and specificity, and therefore, may be used as indices to identify players with a high degree of soccer playing ability.
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Citations
Rationale and Practical Recommendations for Testing Protocols in Female Soccer: A Narrative Review
TL;DR: Beato et al. as discussed by the authors presented a narrative review of the literature on tests (aerobic, speed, changes of direction [COD], strength, power, jump, and anthropometry) of the varied components of female soccer and drew attention to the most suitable protocols to allow practitioners to accurately track players' fitness status.
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The Influence of Quadriceps Strength and Rate of Torque Development on the Recovery of Knee Biomechanics During Running After Anterior Cruciate Ligament Reconstruction.
Keith A. Knurr,Daniel G. Cobian,Stephanie A Kliethermes,Mikel R. Stiffler-Joachim,Bryan C. Heiderscheit +4 more
TL;DR: Quadriceps RTDLSI was more strongly associated with symmetrical knee biomechanics during running compared with PTLSI or time throughout the first 2 years after ACLR.
5
The Evolution of Physical Performance throughout an Entire Season in Female Football Players
Francisco Reyes-Laredo,Fernando Pareja-Blanco,Guillermo López-Lluch,Elisabet Rodríguez-Bies +3 more
TL;DR: The evolution of physical performance throughout a season in female football players primarily involves improvements in muscle strength and change of direction ability.
1
Evolution of Physical Performance throughout an Entire Season in Female Soccer Players
Francisco Reyes-Laredo,Fernando Pareja‐Blanco,Guillermo López‐Lluch,Elisabet Rodríguez-Bies +3 more
- 23 Nov 2023
TL;DR: Physical performance in female soccer players evolves throughout the season, with significant improvements in muscle strength and change of direction ability.
1
Effects of maturity status on the rate of torque development in young male soccer players
Mauricio Diniz Rocha Pechina,Marco Aurélio Vaz,Jeam Marcel Geremia,Fernando Diefenthaeler,Gabriela Tomedi Leites,Alvaro Reischak‐Oliveira,Giovani dos Santos Cunha +6 more
- 13 Mar 2024
TL;DR: Effects of maturity status on the rate of torque development in young male soccer players - TLDR
Maturity status has no positive effects on RTD values after normalization by body mass in young soccer players.
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