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Impact of vigorous effort on blood morphological indicators in triathletes participating in the XTERRA Poland 2017 competition

100%

Teległów A., Borowiec R., Marchewka J., Tota Ł., Mucha D.

Medical Rehabilitation

2020

vol. 24(2)

20-26

Cel: Celem pracy jest uzyskanie odpowiedzi w jaki sposób udział w triathlonie XTERRA POLAND 2017 wpłynął na wskaźniki morfologii krwi. Materiał i metody: Badanie przeprowadzono w grupie 10 triathlonistóww wieku 30-40 lat. Krew pobrano 24 godziny przed zawodami, bezpośrednio po zawodach oraz 16 godzin po zakończeniu zawodów. Wykonano oznaczenia wskaźników morfologicznych krwi u triathlonistów w aparacie ABX MICROS 60. Wyniki: Analizując wyniki pomiędzy pierwszym pomiarem (24 godzin przed zawodami) a pomiarem drugim (bezpośrednio po zawodach) i trzecim pomiarem (16 godzin po) zaobserwowano zmiany istotne statystycznie dla: WBC [109/L], RBC [10¹²/L], HGB [g/L], HCT [L/L], MCV [fL], PLT [109/L]. Wnioski: Stopień zaawansowania wysiłku u zawodników startujących w triatlonie XTERRA POLAND 2017 został potwierdzony w wynikach morfologii krwi. Wskaźniki morfologii krwi u osób uprawiających triathlon dobrze charakteryzują faktyczny zakres i kierunek zmian wysiłkowych oraz pozwalają na diagnostykę przejściowych skutków adaptacyjnych. Wyniki badań potwierdziły, iż intensywny wysiłek fizyczny podczas triathlonu wpłynął na zwiększenie leukocytów i płytek krwi, jednak 16 godzin po zakończeniu zawodów ich wartość była zbliżona do stanu wyjściowego. Najprawdopodobniej zjawisko to zostało spowodowane intensywnym wysiłkiem, stresem czy nawet spożyciem dużego posiłku przed zawodami. Analizując układ czerwonokrwinkowy wykazano tendencję do zmniejszania się liczby krwinek czerwonych, HGB i HCT zarówno po zawodach jak i 16 godzin po zakończeniu zawodów co wynika z nasilonej hemolizy powysiłkowej czy zagrożeniem wystąpienia anemii.

Purpose: The aim of the study was to determine the influence of participation in the XTERRA Poland 2017 triathlon on blood morphology indicators. Material and methods: The study was performed in a group among 10 triathletes aged 30-40 years. Blood was collected 24 hours before, immediately after , and 16 hours after the competition. Blood morphological indicators were evaluated using the ABXMicros60 analyser. Results: Comparison of the results among the first (24 hours before the competition), second (immediately after the competition), and third assessment (16 hours after the competition) revealed statistically significant changes for WBC [109/l], RBC [1012/l], HGB [g/l], HCT [l/l], MCV [fl] and PLT [109/l]. Conclusions: The intensity of effort in the XTERRA Poland 2017 triathlon competitors was confirmed in the results of blood morphology. Blood counts in those practicing triathlon well characterise the actual scope and direction of exercise changes and allow for the diagnosis of transient adaptive effects. The results of the research confirmed that vigorous physical effort during the triathlon increased leukocyte and platelet counts, but 16 hours after completing the competition, their value was close to baseline level. Most likely, this phenomenon was caused by the intense effort, stress or even eating a large meal before the competition. Analysing the red blood cell system showed a tendency towards decrease in the number of red blood cells, HGB and HCT both after the competition and 16 hours after its completion, which results from increased post-exercise haemolysis or the risk of anaemia.

CHOSEN INDIVIDUAL FACTORS OF ADOLESCENTS’ PHYSICAL DEVELOPMENT IN THEIR LEISURE TIME

100%

Görner K., Jurczak A., Spieszny M., Mucha D., Makuch R.

The aim of the research was to diagnose chosen individual factors of adolescents’ physical development (motor skills, physical fitness, motor activity needs) and their influence on their actual level of physical activity in their leisure time. The subjects of the research were students of Cracow’s junior high schools. The probability sample of 295 girls and 329 boys were examined. The method used was a survey. The results of the examinations showed that the chosen individual factors had an influence on the actual level of physical activity in their leisure time. The boys’ motor skills (in contrast with the rest of the factors) correlated the least with the increase of the actual level of physical activity in leisure time, and in case of the girls, they did not correlate at all. Youngsters’ individual predispositions to undertake physical activity in their free time were at a medium-high level. Nevertheless, their internalization did not take place because more than a half of the subjects undertook physical activities at a low level (51.0%) or not at all (7.4%).

Effect of Variable-Intensity Running Training and Circuit Training on Selected Physiological Parameters of Soccer Players

59%

Ambroży T., Nowak M., Omorczyk J., Wrześniewski K., Ozimek M., Duda H., Mucha D., Ceranowicz P., Pałka T., Stanula A., Mucha D.

Central European Journal of Sport Sciences and Medicine

2018

vol. 23

issue 3

25-35

Proper planning of the training process based on individual LT and AT metabolic thresholds is essential to improve athletic performance. Development of endurance in soccer players is mainly based on continuous runs and variable-intensity runs, supplemented with strength conditioning and sport-specific training. The aim of the study was to analyse selected parameters of physical capacity of soccer players after 8-week variable-intensity running training and circuit training. The experiment was carried out in a group of 34 soccer players aged 21 to 26 years. The athletes were divided into two groups: 17 people in the experimental group and 17 people in the control group. The experimental group was involved in 30-minute tempo runs two times a week for 8 weeks with variable intensity at AT. In the same period, the control group performed two 60-minute continuous runs at the intensity of 70-75%HRmax. The determination of metabolic thresholds used two indirect tests: the multistage shuttle run test (beep test) and maximal lactate steady state test (MLSS) with author's own modification. In order to evaluate maximal heart rate (HRmax), the research procedure was started from the beep test (distance: 20 m). The speed at the first level was 8.5 km/h and increased with each level by 0.5 km/h. Training of the experimental group where variable exercise intensity was used caused a statistically significant increase in HRmax (by 1.9%) and blood lactate levels at the AT (by 20.5%). The training in the experimental group led to the statistically significant (p < 0.05) increase in the parameters of the following variables: HRmax (by 1.9%); lactate level (by 7.85); HR at the AT (by 1,9%); lactate level at the AT (by 20.5%). The assumptions of the experimental training did not cause statistically significant changes in pretest vs. posttest HRmax and blood lactate levels for the LT. Endurance training with high intensity is more effective in soccer players compared to training with moderate intensity. Development of special endurance in soccer should also assume the intensity and method of working similar to the method used during sport competition.

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2 Central European Journal of Sport Sciences and Medicine

1 Medical Rehabilitation

1 2020

1 2018

1 2013

3 Mucha D.

1 Ambroży T.

1 Borowiec R.

1 Ceranowicz P.

1 Duda H.

1 Görner K.

1 Jurczak A.

1 Makuch R.

1 Marchewka J.

1 Nowak M.

1 Omorczyk J.

1 Ozimek M.

1 Pałka T.

1 Spieszny M.

1 Stanula A.

1 Teległów A.

1 Tota Ł.

1 Wrześniewski K.

Search results

Impact of vigorous effort on blood morphological indicators in triathletes participating in the XTERRA Poland 2017 competition

CHOSEN INDIVIDUAL FACTORS OF ADOLESCENTS’ PHYSICAL DEVELOPMENT IN THEIR LEISURE TIME

Effect of Variable-Intensity Running Training and Circuit Training on Selected Physiological Parameters of Soccer Players