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EN
The aim of the article is to show the rhetoric advise in requests for advice and advice given by non-professional runners. The analyzed material comes from the social networking site Facebook, through which runners inform about competitions or trainings, but also to advise issues: diet, training, running equipment, competitions and injury. Author separately analyzes the advice and requests for advice formulated by novice runners as different from those expressed by the more experienced. The article divided: advice on request, that is, those that have been given on the express request of the other runners and the advice imposed, which is given to the advice without an explicit request.
EN
The work presents analyze of vertical acceleration curve of the body mass center (VACM characteristic) obtained by eleven athletes during on treadmill running with gradual rise velocity. The measurements are made by uniaxial accelerometer placed in loins part of trunk near the center of body mass. The chosen value of characteristics was calculated for every single run with applied velocity of treadmill The velocity of treadmill of every run was significantly correlated to mean values of VACM characteristics calculated for all subjects. For every athletes analyzed mean values of characteristics calculated separately for left and right steps were significantly different.
EN
Purpose: Sports surface is one of the known external factors affecting running performance and injury. To date, we have found no study that examined the lower extremity stiffness in habitual forefoot strikers running on different overground surfaces. Therefore, the objective of this study was to investigate lower extremity stiffness and relevant kinematic adjustments in habitual forefoot strikers while running on different surfaces. Methods: Thirty-one male habitual forefoot strikers were recruited in this study. Runners were instructed to run at a speed of 3.3 m/s (±5%) on three surfaces, named synthetic rubber, concrete, and artificial grass. Results: No significant differences were found in leg stiffness, vertical stiffness, and joint stiffness in the sagittal plane during running on the three surfaces ( p > 0.05). Running on artificial grass exerted a greater displacement in knee joint angle than running on synthetic rubber ( p = 0.002, 95% CI = 1.52–7.35 degrees) and concrete ( p = 0.006, 95% CI = 1.04–7.25 degrees). In the sagittal plane, peak knee moment was lower on concrete than on artificial grass ( p = 0.003, 95% CI = 0.11–0.58 Nm/kg), whereas peak ankle moment was lower on synthetic rubber than on concrete (p < 0.001, 95% CI = 0.03–0.07 Nm/kg) and on artificial grass (p < 0.001, 95% CI = 0.02–0.06 Nm/kg). Among the three surfaces, the maximal ground reaction forces on concrete were the lowest (p < 0.05). Conclusions: This study indicated that running surfaces cannot influence lower extremity stiffness in habitual forefoot strikers at current running speed. Kinematic adjustments of knee and ankle, as well as ground reaction forces, may contribute to maintaining similar lower extremity stiffness.
EN
The article presents a comparative analysis of social preferences related to running in the forests of Poland and the Czech Republic. The preferences were determined on the basis of a questionnaire distributed in 2016 via social media among people interested in running in in both countries. The survey covered 346 people over 18 years of age in Poland and 294 people from Czech Republic. The questionnaire included questions such as: the frequency of running in the forest, the preferred season for running and average number of running kilometers in the week and the views on advantages and disadvantages of running in forest areas. The results show that there is quite a lot of differences between the preferences of respondents from both of the analyzed countries. Statistical analysis was carried out using the chi−square test. The observed differences relate mainly to the choice of season for running in forests, the frequency of running in the forests, average distance covered in a week and the views on advantages of running in forest areas. The most preferred season for running in Polish forests was summer, then spring, while in Czech ones it was exactly the opposite. Most respondents in Poland run in the forest several times a week, whereas in the Czech Republic – several times a month. The most frequently mentioned advantages of running in Polish forests were: contact with nature, clean air, landscape – pleasant environment. In Czech forests among the most frequently mentioned advantages of running were: contact with nature, good quality surface and clean air. Subsequently, the respondents pointed to the lack of traffic control infrastructure, and lack or a small number of other recreational people. Among the disadvantages of running in the forest, respondents in both counties mentioned mainly: the presence of tick and hunters. Other factors limiting the comfort of running in the forests included: uneven road surface or problems with phone connection. Only the views on the subject of the attractiveness of the forests for running and disadvantages of running in forest areas were not significantly important.
PL
W ostatnim czasie systematycznie rośnie w Polsce liczba osób rekreacyjnie uprawiających bieganie. W artykule przedstawiono specyfikę żywienia biegaczy i zaprezentowano wyniki badań własnych, których celem była analiza zachowań żywieniowych biegaczy amatorów. Ustalono ilość i regularność konsumowanych posiłków, preferowane rodzaje produktów żywnościowych, sposoby i stopień nawodniania organizmu oraz techniki kulinarne najczęściej stosowane w przygotowywaniu posiłków. Na podstawie zebranych danych dokonano analizy żywienia biegaczy przed treningiem/zawodami oraz po ich ukończeniu, określono główne źródła wiedzy na temat racjonalnego odżywiania oraz ustalono stosunek biegaczy do suplementacji diety. Określono wpływ żywienia na subiektywne odczucie biegaczy w zakresie poziomu jakości życia i poprawy zdolności wysiłkowych organizmu. Wykazano, że osoby odżywiające się racjonalnie wykazują większy poziom samozadowolenia i czerpią z biegania więcej satysfakcji niż te, które nie przykładają do tego zagadnienia większej uwagi. Poprawia się też w ich subiektywnym odczuciu kondycja. Biegacze wypijają niezależnie od fazy wysiłku fizycznego zbyt mało płynów, spożywają zbyt mało nabiału, jaj, owoców i warzyw, w ograniczonym stopniu stosują suplementację diety. Kobiety uprawiające bieganie do kwestii żywienia przykładają większą uwagę niż mężczyźni i dokonują bardziej świadomych wyborów żywieniowych.
EN
The number of recreational runners in Poland steadily grows in recent times. The article presents the specifics of runners’ nutrition and the results of own research aimed at analyzing the eating habits of amateur runners. The amount and regularity of consumed meals, preferred types of foodstuffs, methods and degree of organism watering and culinary techniques most commonly used in the meals preparation were determined. Based on the collected data the analysis of runners’ nutrition before training/competition and after it was completed. The main sources of knowledge on rational nutrition and runners’ attitude towards dietary supplementation were determined. It was possible to identify the influence of nutrition on the subjective feeling of runners’ quality of life and organism effort capacity. It was indicated that runners feeding rationally demonstrate a greater level of complacency and draw from running more satisfaction than those who do not attach more attention to this issue. The subjective perception of their conditions also improves. Runners regardless of the phase of exercise drink too little fluid and consume too little dairy products, eggs, fruits and vegetables. To a limited extent they use sports supplementation of the diet. Female runners pay to nutrition issue more attention than men and make more informed food choices.
EN
Purpose: The aim of this study was to determine how minimalist running shoes (MRS), conventional running shoes (CRS) and the dominance of lower limbs influence the running gait. Methods: Trained recreational runners (N = 13) who have been engaged in regulary running for more than one year were participants in this study. They were experienced with using MRS and CRS for more than half year and they used both types of shoes. An in-shoe pressure measuring system (Pedar-X®, Novel, Munich, Germany) was used to monitor plantar pressure and vertical force and the temporal parameters when running in MRS and CRS during the stance phase, the swing phase and over one stride. Results: Running in CRS significantly prolonged stance, swing and stride phases by 2–11% compared to MRS. In contrast, when running in MRS significantly larger values of maximum pressure (9–14%) and maximum vertical force (3–7%) than in CRS were found. Conclusions: For this reason, running in MRS could be recommended to recreational runners only with care. The effect of limb dominance on temporal characteristics was detected when running in CRS. Significantly longer stance phase for dominant limb is associated with a shorter swing. The kinematics variables were significantly higher for dominant limb than for non-dominat limb when running in MRS and CRS (by 12–23%).
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