Biomechanical analysis of the late approach and the take off in the indoor women’s long jump

Vassilios Panoutsakopoulos; Apostolos S. Theodorou; Efstratios Fragkoulis; Marianna C. Kotzamanidou

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Biomechanical analysis of the late approach and the take off in the indoor women’s long jump

VASSILIOS PANOUTSAKOPOULOS ^[1] ; APOSTOLOS S. THEODOROU ^[2] ; EFSTRATIOS FRAGKOULIS ^[3] ; MARIANA C. KOTZAMANIDOU ^[4]
1. [1] Aristotle University of Thessaloniki
  
  Aristotle University of Thessaloniki
  
  Dimos Thessaloniki, Grecia
2. [2] National and Kapodistrian University of Athens
  
  National and Kapodistrian University of Athens
  
  Dimos Athens, Grecia
3. [3] Democritus University of Thrace
  
  Democritus University of Thrace
  
  Dimos Komotini, Grecia
4. [4] Metropolitan College of Thessaloniki
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Localización: Journal of Human Sport and Exercise: JHSE, ISSN-e 1988-5202, Vol. 16, Nº. Extra 3, 2021 (Ejemplar dedicado a: Winter Conferences of Sports Science), págs. 1280-1292
Idioma: inglés
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Resumen
- Aim of the study was to provide evidence concerning the biomechanical parameters of contemporary Women’s long jump in indoor competition. The final six steps and the take-off of 11 jumps (6.88 ± 0.23 m) were recorded (panning camera; sampling frequency: 300 fps) in an indoor competition. The examined parameters were a) the step parameters, the percentage distribution of adjustment (ADJ%) and the inter-limb symmetry angle (θSYM) in the late approach, b) the joint angles and the take-off parameters. Pearson’s correlation analysis revealed that approach velocity (9.8 ± 0.3 m/s) was significantly correlated (r = .86, p = .001) with effective distance (6.96 ± 0.23 m). The largest ADJ% (57.6 %) was executed at the penultimate step which was 12.2 ± 2.8 % larger than the last step. An inter-limb difference was revealed for step frequency (t10 = 6.965, p < .001) due to the large asymmetry observed (θSYM = 5.54 deg). The knee angle of the push-off leg at take-off was 171.2 ± 4.7deg. Resultant velocity (8.3 ± 0.4 m/s), height (1.15 ± 0.05 m) and angle (20.7 ± 2.3 deg) of take-off significantly predicted effective distance (F3,7 = 12.671, p = .003, R2 = .844). The present findings are in reasonable agreement with previous research. Future studies should examine the possible reliance and asymmetry for the step parameters in the final approach.