Parachuting training improves autonomic control of the heart in novice parachute jumpers

• Autorzy: Mazurek K. , Koprowska N. , Gajewski J. , Zmijewski P. , Skibniewski F. , Różanowski K.

Identyfikatory

DOI

10.1016/j.bbe.2017.11.004

• Języki publikacji: EN

Abstrakty

EN

This study aimed to investigate the acute effect of skydiving and the chronic effect of parachute jump training on the cardiac response in novice and trained parachuters. The study included 11 experienced skydivers (expert group), aged 35.9 ± 7.2 years, and 12 students (novice group), aged 27.9 ± 7.2 years. Participants underwent 10-unit training in accelerated freefall (AFF) from an altitude of 4000 m. In experts, the highest HR was noted during the phase of opening of the parachute and during the landing phase, and in pre-training novices during the phase of exit from the plane and the descent by parachute. Mean standard deviation of NN intervals (SDNN) was higher in experts than pre-training novices. In novices, post-training values of SDNN, root mean square of successive differences (RMSSD), and the low/high frequency oscillation ratio (LF/HF) were higher, and HF and LF were lower, than pre-training values. In experts the values of SDNN, RMSSD, LF, HF, and total power spectrum (TP) were significantly higher and LF/HF significantly lower than in pre-training novices. Novice compared to experienced skydivers are characterized by higher modulation of the sympathetic, and lower modulation of the parasympathetic autonomic nervous system (ANS). Chronic effects of 10-unit AFF training are characterized by decreased modulation of the sympathetic nervous system, increased total power spectrum of HRV, and increased activity of the parasympathetic nervous system. The changes in ANS modulation suggest that parachute training leads to a reduction of the stress response and improves autonomic control of cardiovascular function in novice skydivers.

Słowa kluczowe

EN

heart rate variability; cardiac adaptation; accelerated freefall; electrocardiography; skydiving

PL

zmienność rytmu serca; elektrokardiografia; przyspieszone spadanie; spadochroniarstwo

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2018
• Tom: Vol. 38, no. 1
• Strony: 181--189
• Opis fizyczny: Bibliogr. 40 poz., tab., wykr.

Twórcy

autor

Mazurek K.

• Department of Physiology and Sport Medicine, Faculty of Physical Education, Józef Piłsudski University of Physical Education in Warsaw, Poland

autor

Koprowska N.

• Department of Physiology and Sport Medicine, Faculty of Physical Education, Józef Piłsudski University of Physical Education in Warsaw, Poland

autor

Gajewski J.

• Department of Statistics and Information Technology, Faculty of Physical Education, Józef Piłsudski University of Physical Education in Warsaw, Poland

autor

Zmijewski P.

• Faculty of Medicine, University of Information Technology and Management in Rzeszow, ul. Sucharskiego 2, 35-225 Rzeszów, Poland

autor

Skibniewski F.

• Technical Department of Aeromedical Research and Flight Simulators, Military Institute of Aviation Medicine, Warsaw, Poland

autor

Różanowski K.

• Aviation Bioengineering Department, Military Institute of Aviation

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).