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Using wearables to monitor physical activity
Mádlová, Zdenka ; Větrovský, Tomáš (advisor) ; Omcirk, Dan (referee)
Title: Using wearables to monitor physical activity Objectives: The aim of this study is to assess the validity of the Fitbit Charge 5 compared to the ActiGraph wGT3x-BT for the assessment of physical activity (steps, time spent in moderate physical activity, vigorous physical activity and moderate to vigorous physical activity) in adults. Methods: The Fitbit Charge 5 commercial physical activity monitor was compared to the ActiGraph wGT3x-BT under daily living conditions. Healthy adults (n=32) wore both devices in a 7-day field study. Data were analyzed based on days for steps, minutes of moderate physical activity, minutes of vigorous physical activity and minutes of moderate to vigorous physical activity. Pearson's correlation coefficient and Bland-Altman plot were used to assess the correlation between the Fitbit Charge 5 device and the criterion. Mean percentage error (MPE) and mean absolute percentage error (MAPE) were calculated to assess differences. Results: The Fitbit Charge 5 had a very strong correlation (r = 0,94; 95% CI 0,92- 0,96) on the step measurement with criterion. The MAPE value was 23%. A weak correlation with respect to the criterion was demonstrated for the measured physical activity of moderate intensity (r = 0,33; 95% CI 0,27- 0,39). For vigorous physical activity a...
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Effect of maximal strength in bench press on the punching impact force in combat sports
Motejlek, Tadeáš ; Omcirk, Dan (advisor) ; Oláh, Vladan (referee)
Title: The effect of maximal strength in bench press on punch force in combat sports Objectives: The aim of the bachelor's thesis is to find out whether the maximum strength in the bench press has an effect on the force of the punch in combat sports and whether it is therefore advantageous to include the bench press in training for the development of the strength of the upper limbs in combat sports. Next, to verify whether there is a connection between the maximum force of the punch and additional variables, which include the speed of lifting the barbell during the bench press, the intercept of the speed axis V0, the intercept of the load axis L0, the area under the line and the slope of the regression line. Methods: The research was based on testing bench press maximum strength for one repetition maximum and maximum force of the rear cross punch of the dominant upper limb. During tests were used position transducers to measure the lifting speed of the barbell and force plate to measure the impact of punch. The evaluation of the measured data took place using the Shpiro-Wilk test of normality of data distribution and subsequent correlation analysis using the Spearman correlation coefficient. Results: Between the one repetition maximum in bench press and maximum punch force was found no...
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Evaluating Methods of Assessing Force and Velocity during Punching Specific Movements
Omcirk, Dan ; Tufano, James Joseph (advisor) ; Reguli, Zdenko (referee) ; Fernandes, John (referee)
Title: Evaluating Methods of Assessing Force and Velocity during Punching Specific Movements Objectives: This dissertation had three main objectives: 1. To determine the ability of different commercially available punch trackers (Corner, Everlast, and Hykso) to recognize specific punch types (lead and rear straight punches, lead and rear hooks, and lead and rear uppercuts) thrown by trained and untrained punchers. 2. To determine the validity of three commercially available punch trackers (Corner, Hykso, and StrikeTec) for monitoring punch velocity and force during rear straight punches, rear hooks, and rear uppercuts performed at lower and higher intensities by trained and untrained punchers. 3. To determine the reliability and load-velocity profiles of three different landmine punch throw variations (seated without trunk rotation [LPwo], seated with trunk rotation [LPw], and standing whole body [LP]) with different loads (20.0 kg, 22.5 kg, and 25.0 kg), all with the dominant (DH) and non-dominant hand (NH). Methods: Due to three independent studies in this dissertation, the methods are divided into three sections, each connected to the objectives mentioned above: 1. Ten trained and 11 untrained punchers different punch combinations, and punch trackers data were compared to data from video...
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Kickboxing technique and the frequency of use in ring disciplines: a systematic review
Kohout, Ondřej ; Omcirk, Dan (advisor) ; Oláh, Vladan (referee)
Title: Kickboxing techniques and the frequency of their use in ring disciplines: a systematic review Objectives: The aim of this thesis is to determine the frequency of individual techniques used during fights in full-contact kickboxing matches at international level based on a systematic review of scientific publications. Methods: The method used to create this bachelor thesis was a systematic review based on a referred selection of items in accordance with PRISMA recommendations. First, a research question was set to determine the frequency of techniques used in ring disciplines (K-1 and Low kick) in kickboxing. Using predefined keywords and Boolean operators, a search script was developed to search scientific databases such as the Web of Science, PubMed and Scopus. Duplicate studies were removed from search results and the final number of studies was reduced according to predefined criteria. Eligible studies were used for data analysis and subsequent synthesis. Results: Out of the total number of studies found (n = 347), ten studies were used for the results of this systematic search. The most commonly used technique in kickboxing ring disciplines was identified as the Jab. Two studies have identified the Jab as the technique with the highest frequency of use, while three other studies...
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The effect of weight manipulation on physical performance in combat sports
Nesvadba, Vojtěch ; Třebický, Vít (advisor) ; Omcirk, Dan (referee)
Author: Bc. Vojtěch Nesvadba Title: The Effect of Weight Manipulation on Physical Performance in Combat Sports Objectives: To assess the effect of rapid weight loss and rapid weight gain on strength and to assess the effect of rapid weight loss on health biomarkers. Methods: A total of 19 full-contact combat sports athletes participated in this study and underwent a 7-day period of intentional rapid weight loss, resulting in 5% loss of their initial body weight. Subsequently, within two hours, they regained 2.6% of their body weight. To assess the effect of this rapid weight manipulation, we employed a comprehensive battery of isometric, dynamic, and anaerobic tests to measure the strength-related abilities and body composition (before rapid weight loss, after rapid weight loss and after rapid weight gain). Furthermore, we monitored the hydration status throughout the study using diagnostic strips. The participants also completed a series of purpose-specific questionnaires. Results: In the condition after rapid weight reduction, we observed statistically significant decrease in the maximal isometric strength of the left knee flexors, maximal explosive strength of the upper and lower extremities, and a statistically significant decline in the hydration status of the participants. In the condition...
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Strength exercises for the prevention of knee injuries in drop landing: a sysmatic review.
Novák, Michal ; Oláh, Vladan (advisor) ; Omcirk, Dan (referee)
Title: Strength exercises for the prevention of knee injuries in drop landing: a sysmatic review. Objectives: This study aims to create an incidence overview of strength exercises for the prevention of knee injuries during drop landing using a systematic search of scientific databases. Methods: For an elaboration of this thesis was used the systematic review method based on recommendations of PRISMA (Page et al., 2021). At the beginning of the thesis, a research question was defined to identify the most common strength exercises in intervention programs to prevent drop landing injuries. Next, a script was created using defined keywords and Boolean operators such as AND, OR and NOT. The script was used to retrieve studies from internet databases (Web of Science, SportDiscus, Scopus, PubMed). Duplicates were subsequently excluded from the retrieved studies, and the number of studies was further reduced by expert review according to predefined criteria. Results: According to the results of this bachelor thesis, lunges are the most common exercise used in intervention programs to prevent knee injuries during drop landing. They were used in 13 out of 24 intervention programs. In addition to strength exercises, plyometric exercises are widely used in intervention programs. Keywords: Strength training,...
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Testing physical assumptions of swimmers and modern pentathlonists
Omcirk, Dan ; Chrzanowská, Babeta (advisor) ; Čechovská, Irena (referee)
Title of diploma thesis: Testing physical assumptions of swimmers and modern pentathlonists Author: Bc. Dan Omcirk Supervisor of diploma thesis: PhDr. Babeta Chrzanowská Consultant of diploma thesis: PhDr. Pavel Hrásky, Ph.D. Objective: Target is to test the swimmers and modern pentagons in the age from 9 - 13 years. Furthermore to evaluate and tabulate the results. Compare the selected results in- between the groups and assess whether the training is affecting the level of certain motor assumptions, physical abilities and selected body parameters. Methodology: The research method of this work is comparison. The research group was composed by children from the SK Motorlet Praha (n = 13, mean age 11.5 ± 1.1 years) and children from the modern pentagon Dukla Praha (n = 10, mean age 10.5 ± 0.8 years). Tested objects were participated in motor-fitness tests - Cooper's test (running and swimming test 12 minutes), joint mobility test (shoulder, lumbar spine and hip segment), lower limb dynamics test, absolute upper limb strength, postural stability and body composition test. The measured results were evaluated and compared. The final results should be used as an recommendations for practice use. Results: The results of the group comparisons are presented in the practical part of this work, including the...
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Recreational rowing as a form of leisure-time physical activities.
Omcirk, Dan ; Hráský, Pavel (advisor) ; Šteffl, Michal (referee)
Title of bachelor thesis: Recreational rowing as a form of leisure-time physical activities Author: Dan Omcirk Supervisor of thesis: Mgr. Pavel Hráský, Ph.D. Objective: Find out why respondents chose recreational rowing as their leisure-time physical activity. How is rowing beneficial or has negative effects to respondents perceive. Methodology: For research purposes was used public inquiry of three rowing clubs. Survey was completed by total number of 32 respondents aged from 23 to 75 years, of which 18 were males and 14 females. Results: Participants of public inquiry indicates positive changes due to recreational rowing. Respondent's development of conditional assumptions. Recreational swing is not usually recommended by doctors as a leisure physical activity. Recreational rowing is not conditioned by age of respondents. Keywords: physical fitness, physical activity, hypokinesia, rowing, endurance requirements, power requirements
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