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Effects of Accelerated Breathing On Postural Stability

100%

Kuczyński M., Wieloch M.

Human Movement

2008

vol. 9

issue 2

107-110

Purpose. The aim of the paper was to determine the effect of respiration on body balance in quiet standing. Basic procedures. Postural performance during quiet standing was compared in 37 young healthy subjects in two trials on a force plate: first with natural breathing, and then with accelerated high-volume breathing at the rate of 1 Hz. Each trial included 20 s quiet standing with eyes open, and the center of pressure (COP) was recorded with the sampling rate of 20 Hz in both anterior-posterior (AP) and mediallateral (ML) planes. Based on the recorded signals the COP dispersion measures and postural frequency were calculated. Main findings. The forced respiration contributed significantly to the increase in all COP stability measures in the AP plane: dispersion (p < 0.01), range (p < 0.001) and mean velocity and frequency (p < 0.00001). In the ML plane only mean velocity (p < 0.001) and frequency (p < 0.01) were affected. Conclusions. In view of the evidence provided by other authors that stress tests increase the amplitude- and frequency-based stability measures, our results indicate that the contribution of natural accelerated breathing after strenuous physical exercise will bias the results of stabilographic studies, rendering them worthless in understanding the role of neuromuscular fatigue in stability deterioration. Such studies must use data collected after the respiration returns to normal rate. However, if the study aims at overall assessment of postural stability post-fatigue, the postural testing may be performed immediately after the stress test.

Optimization of the Effort Preparation Process Among the Short Track Female Competitors in a Year Cycle

81%

Lukanova-Jakubowska A., Konieczny M., Charaśna-Blachucik J., Wieloch M.

Central European Journal of Sport Sciences and Medicine

2015

vol. 12

issue 4

109-119

The aim of conducted research was an attempt to define the dynamics of aerobic and anaerobic endurance changes in the short track female competitors training during a year cycle which is dependent on the energy characteristic of training burden. Nineteen female competitors of OMKŁS Opole club and KU AZS PO Opole, were put through the examination. Eight of them were members of National Team and Olympic Team (Vancouver 2010), moreover, the competitors participated in the World Cup, World Championship, European Championship. The other examined competitors were members of National Team. With the help of terrain and laboratory tests, an official record was made on every lap time, final time of every trial, HR max and HR medium as well as the concentration of lactate in blood in fourth minute after an effort. In the thirtieth minute, after an effort, HR and lactate concentration were registered in order to define the course of restitution. Anaerobic and mixed parameters were examined by the Wingate test in 7.5% load formula of body weight. The results of researches proved that a selection of applied training burdens was not conductive to the adaptation of process according to the Mathews, Fox model (1976). In the short track, a training burden should reflect the specific of an effort in this discipline, emphasising an anaerobic energy type in a year cycle of preparations.

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1 Central European Journal of Sport Sciences and Medicine

1 Human Movement

1 2015

1 2008

2 Wieloch M.

1 Charaśna-Blachucik J.

1 Konieczny M.

1 Kuczyński M.

1 Lukanova-Jakubowska A.

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Effects of Accelerated Breathing On Postural Stability

Optimization of the Effort Preparation Process Among the Short Track Female Competitors in a Year Cycle