Research article - (2024)23, 418 - 424
DOI:
https://doi.org/10.52082/jssm.2024.418
Lateral Shuffle-Induced Fatigue Effects on Ankle Proprioception and Countermovement Jump Performance
Mengde Lyu1, Zhili Chen1, Renhuan Tang1, Ling Ding2, Shengji Deng1, Roger Adams3,4, Jia Han3,4, Yongming Li1,5,
1School of Athletic Performance, Shanghai University of Sport, Shanghai, China
2School of Physical Education, Shanghai University of Sport, Shanghai, China
3College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai, China
4Research Institute for Sport and Exercise, University of Canberra, Bruce, Australia
5China Institute of Sport Science, Beijing, China

Yongming Li
✉ Shanghai University of Sport School of Athletic Performance Changhai Road 399, Yangpu district, Shanghai, China
Email: liyongming@sus.edu.cn
Received: 06-03-2024 -- Accepted: 03-05-2024
Published (online): 01-06-2024

ABSTRACT

To determine how lateral shuffling/lateral shuffle (LS) -induced fatigue affects ankle proprioception and countermovement jump (CMJ) performance. Eighteen male college athletes performed 6 modes of a repeated LS protocol with 2 distances (2.5 and 5 m) and 3 speeds (1.6, 1.8, and 2.0 m/s). After LS, ankle inversion proprioception (AIP) was measured using the active movement extent discrimination apparatus (AMEDA). CMJ, blood lactate (BLa), heart rate (HR) and rating of perceived exertion (RPE) were measured before and after LS. The number of changes of direction (CODs) in each protocol was recorded. LS-induced fatigue was evident in BLa, HR and RPE (all p < 0.05), increasing with shorter shuffle distance and faster speed. RM-ANOVA showed a significant distance main effect on both AIP (p < 0.01) and CMJ (p < 0.05), but the speed main effect was only significant for CMJ (p ≤ 0.001), not AIP (p = 0.87). CMJ performance was correlated with BLa, HR and RPE (r values range from –0.62 to -0.32, all p ≤ 0.001). AIP was only correlated with CODs (r = -0.251, p < 0.01). These results suggested that in LS, shorter distance, regardless of speed, was associated with worse AIP, whereas subsequent CMJ performance was affected by both LS distance and speed. Hence, AIP performance was not related to physiological fatigue, but CMJ performance was. Results imply that LS affects processing proprioceptive input and producing muscular output differently, and that these two aspects of neuromuscular control are affected by physiological fatigue to varying degrees. These findings have implications for injury prevention and performance enhancement.

Key words: Proprioception, fatigue, injury, performance

Key Points
  • Repeated lateral shuffle with shorter distance, regardless of speed, was associated with worse ankle inversion proprioceptive acuity.
  • Similar movements with varying modes seem to affect processing of proprioceptive input and muscular output differently.
  • Ankle inversion proprioceptive acuity was not related to physiological fatigue, but countermovement jump performance was fatigue-affected.








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