Abstract
Purpose
It was supposed that the difficulty of postural tasks accentuates the effects of fatigue on postural stability. The aim of this work was to compare the effects of fatiguing running on three different postural conditions presenting different levels of difficulty: a standing still position with the eyes open (EO condition), a standing still position with the eyes closed (EC condition) and a shooting position with the eyes open (SP condition). The SP condition required a rifle to be held horizontally with the arms and a standing posture with the non-dominant foot ahead of the dominant foot.
Methods
Thirty-two male soldiers 32.2 ± 3.8 years old completed a maximal incremental protocol on a treadmill by running until they reached a state of fatigue. The three postural conditions were evaluated in a randomized order before and after the fatiguing exercise with the use of a force platform which recorded the displacements of the centre of foot pressure.
Results
Following the fatiguing running exercise, postural stability was affected to a greater extent in the SP condition than in the EO condition and the EC condition.
Conclusion
The requirements of the SP condition modify the entire postural organization and this challenges balance control to a greater extent than when in EO and EC standing still positions, following fatiguing exercise. The difficulty of postural tasks thus amplifies the effects of fatigue on postural stability.
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Abbreviations
- CoP:
-
Centre of foot pressure
- EA:
-
Ellipse area
- EADIF :
-
EA difference (pre-fatigue–post-fatigue)
- EO:
-
Eyes open
- EC:
-
Eyes closed
- MV_AP:
-
Mean antero-posterior velocity
- MV_APDIF :
-
MV_AP difference (pre-fatigue–post-fatigue)
- MV_ML:
-
Mean medio-lateral velocity
- MV_MLDIF :
-
MV_ML difference (pre-fatigue–post-fatigue)
- SP:
-
Shooting position
References
Aalto H, Pyykkö I, Ilmarinen R, Kähkönen E, Starck J (1990) Postural stability in shooters. ORL J Otorhinolaryngol Relat Spec 52:232–238
Bisson JE, Chopra S, Azzi E, Morgan M, Bilodeau M (2010) Acute effects of fatigue of the plantarflexor muscles on different postural tasks. Gait Posture 32:482–486
Bizid R, Margnes E, François Y, Jully JL, Gonzalez G, Dupui P, Paillard T (2009) Effects of knee and ankle muscle fatigue on postural control in the unipedal stance. Eur J Appl Physiol 106:375–380
Bonnard M, Sirin AV, Oddsson L, Thorstensson A (1994) Different strategies to compensate for the effects of fatigue revealed by neuromuscular adaptation processes in human. Neurosci Lett 166:101–105
Boyas S, Remaud A, Rivers E, Bilodeau M (2013) Fatiguing exercise intensity influences the relationship between parameters reflecting neuromuscular function and postural control variables. PLoS One 8:e72482
Caron O (2000) A comparative analysis of the center of gravity and center of pressure trajectory path lengths in standing posture: an estimation of active stiffness. J Appl Biomech 16:234–247
Derave W, Tombeux N, Cottyn J, Pannier JL, De Clercq D (2002) Treadmill exercise negatively affects visual contribution to static postural stability. Int J Sports Med 23:44–49
Era P, Konttinen N, Mehto P, Saarela P, Lyytinen H (1996) Postural stability and skilled performance––a study on top-level and naive rifle shooters. J Biomech 29:301–306
Hashiba M (1998) Transient change in standing posture after linear treadmill locomotion. Jpn J Physiol 48:499–504
Horak FB, Nashner LM (1986) Central programming of postural movements: adaptation to altered support-surface configurations. J Neurophysiol 55:1369–1381
Mononen K, Konttinen N, Viitasalo J, Era P (2007) Relationships between postural balance, rifle stability and shooting accuracy among novice rifle shooters. Scand J Med Sci Sports 17:180–185
Nardone A, Tarantola J, Giordano A, Schieppati M (1997) Fatigue effects on body balance. Electroencephalogr Clin Neurophysiol 105:309–320
Niinimaa V, McAvoy T (1983) Influence of exercise on body sway in the standing rifle shooting position. Can J Appl Sport Sci 8:30–33
Paillard T (2012) Effects of general and local fatigue on postural control: a review. Neurosci Biobehav Rev 36:162–176
Paillard T, Lizin C, Rousseau M, Cebellan M (2014) Time to task failure influences the postural alteration more than the extent of muscles fatigued. Gait Posture 39:540–546
Simoneau M, Bard C, Fleury M, Teasdale N, Boulay MR (1996) Les effets de l’activation métabolique sur la stabilité posturale et la précision de tir chez les biathlètes de niveau élite et intermédiaires. Sci Mot 29:22–29
Soleimanifar M, Salavati M, Akhbari B, Moghadam M (2012) The interaction between the location of lower extremity muscle fatigue and visual condition on unipedal postural stability. Eur J Appl Physiol 112:3495–3502
Steib S, Hentschke C, Welsch G, Pfeifer K, Zech A (2013) Effects of fatiguing treadmill running on sensorimotor control in athletes with and without functional ankle instability. Clin Biomech 28:790–795
Yiou E, Heugas AM, Mezaour M, Le Bosec S (2009) Effect of lower limb muscle fatigue induced by high-level isometric contractions on postural maintenance and postural adjustments associated with bilateral forward-reach task. Gait Posture 29:97–101
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Communicated by Toshio Moritani.
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Bermejo, J.L., García-Massó, X., Gomis, M. et al. The difficulty of postural tasks amplifies the effects of fatigue on postural stability. Eur J Appl Physiol 115, 489–495 (2015). https://doi.org/10.1007/s00421-014-3038-z
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DOI: https://doi.org/10.1007/s00421-014-3038-z