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Assessing preventative strategies of lower limb joint instability among female netball players
Dissertation   Open access

Assessing preventative strategies of lower limb joint instability among female netball players

Kendra Taryn Szeles
Doctor of Philosophy (PHD), University of Johannesburg
2025
Handle:
https://hdl.handle.net/10210/520503

Abstract

Netball is a high impact sport in which lower-limb joint instability increases injury risk during dynamic movements such as landing and jumping. The efficacy of precautionary knee taping across different movement complexities and taping modalities (Rigid Tape (RT), Dynamic tape (DT), Kinesio tape (KT) techniques) as a preventative strategy to enhance stability remains unclear. Analysis of the kinematics and kinetics of the lower limb during a drop landing (DL), drop jump landing (DJL), and countermovement jump (CMJ) was undertaken and the effects of various knee taping modalities to prevent lower limb joint instability among female netball players was investigated, compared and evaluated. Five sequential experimental studies were conducted involving injury-free female netball players. A series of DLs, DJLs, and CMJs were performed under four knee taping conditions (No Tape (NT), RT, DT, and KT). Stability indices (dynamic postural stability index [DPSI] and time to stabilisation [TTS]) and reactive strength indices (ground contact time [GCT], Landing impact force, and reactive strength index [RSI]) were compared across conditions to evaluate dynamic stability and reactive strength performance. Continuous biomechanical data were analysed using one-dimensional statistical parametric mapping (SPM1d) repeated-measures ANOVA (p<0.05). Hierarchical regression modelling was used to determine whether taping contributed uniquely to stability outcomes. The RT condition enhanced post-landing control through mechanical constraint, particularly during the stabilisation phase, while KT improved reactive timing and coordination during the stretch-shortening cycle (SCC) without enhancing maximal outputs. The DT condition demonstrated intermediate effects with limited functional impact. Task complexity modulated taping effects, with greater benefits observed during dual-task movements compared to isolated landings. Regression analysis revealed that greater hip abduction and RT independently predicted improved stability, while higher concentric power and KT were independently associated with reduced stability. Knee taping modifies lower-limb kinetics, kinematics, and stability indices in female netball players, with effects conditional on task complexity, movement phase, and tape type. The findings provide evidence-based guidance for strategic taping application: RT for situations requiring enhanced stabilisation control and KT for tasks demanding rapid reactive transitions. These results advance understanding of preventative strategies for lower-limb joint instability and offer practical...
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