Data Visualization for Dynamic Strength Index: A Qualitative Approach for Enhanced Interpretation and Decision-Making

Zane Šmite, Artūrs Paiķis, Līga Plakane

2024

Abstract

Dynamic strength index (DSI) serves as an important metric for assessing the balance between athletes maximal and ballistic strength. However, its interpretation can be limited if the effects of both isometric and ballistic components are not considered. The aim of this study is to develop a qualitative approach for interpreting DSI through data visualization, providing strength and conditioning coaches’ clearer insights that may guide more effective training recommendations. Thirty male college-level basketball athletes performed countermovement jumps (CMJ) and isometric mid-thigh pulls (IMTP) as a part of late-season testing. The peak IMTP force normalized to body mass was 39.02±3.57 N/kg, while peak CMJ force was 25.57±2.92 N/kg. The mean DSI was 0.66±0.09, where 2 athletes attained a DSI ≥0.80, 19 athletes between 0.60 and 0.80, and 9 athletes ≤0.60, corresponding to recommendations for maximal strength, concurrent, and ballistic training, respectively. T-score adjustments, used to categorize athletes based on maximal strength, resulted in the reclassification of 5 athletes from the concurrent training group to the maximal strength development group, and 5 athletes from the ballistic training group to the concurrent training group. Visualizing the DSI in a scatter plot, alongside T-score performance bands from the IMTP, allows for better evaluation of athletes' weaknesses and may guide more effective strength training recommendations.

Paper Citation

in Harvard Style

Šmite Z., Paiķis A. and Plakane L. (2024). Data Visualization for Dynamic Strength Index: A Qualitative Approach for Enhanced Interpretation and Decision-Making. In Proceedings of the 12th International Conference on Sport Sciences Research and Technology Support - Volume 1: icSPORTS; ISBN 978-989-758-719-1, SciTePress, pages 271-276. DOI: 10.5220/0013069600003828

in Bibtex Style

@conference{icsports24,
author={Zane Šmite and Artūrs Paiķis and Līga Plakane},
title={Data Visualization for Dynamic Strength Index: A Qualitative Approach for Enhanced Interpretation and Decision-Making},
booktitle={Proceedings of the 12th International Conference on Sport Sciences Research and Technology Support - Volume 1: icSPORTS},
year={2024},
pages={271-276},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013069600003828},
isbn={978-989-758-719-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 12th International Conference on Sport Sciences Research and Technology Support - Volume 1: icSPORTS
TI - Data Visualization for Dynamic Strength Index: A Qualitative Approach for Enhanced Interpretation and Decision-Making
SN - 978-989-758-719-1
AU - Šmite Z.
AU - Paiķis A.
AU - Plakane L.
PY - 2024
SP - 271
EP - 276
DO - 10.5220/0013069600003828
PB - SciTePress