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Assessing Diversity in Predictive Equations for Body Compartment Estimation
Kampo, Dávid
This paper evaluates the validity of prediction equations for estimating total body water (TBW), extracellular water (ECW), fat-free mass (FFM), and body cell mass (BCM) using bioelectrical impedance analysis (BIA). The study focuses on a sample of 10 Czech individuals of European ethnicity. Prediction equations were selected based on similarity to the study population and were compared to reference ranges for accuracy. Findings show promising outcomes for TBW estimation, with low relative errors (RE) of 0.11% and -3.26% for equations by Deurenberg et al. and Kotler et al. respectively. Matias et al.’s equation for ECW estimation demonstrated the most accurate results with an RE of 2.13%. For FFM estimation, equations by Lukaski et al. and Deurenberg et al. showed favorable outcomes with RE values of 4.4% and -1.27% respectively. However, none of the BCM prediction equations provided satisfactory accuracy. Further research with larger sample sizes is needed for more accurate validation. Nonetheless, this study offers valuable insights into selecting appropriate prediction equations for BIAbased body composition analysis.
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Comparison of Bioimpedance Methods for Measuring Body Composition in Individuals with Spinal Cord Injury
Szmitková, Lenka ; Majorová, Simona (advisor) ; Vařeková, Jitka (referee)
Title: Comparison of Bioimpedance Methods for Measuring Body Composition in Individuals with Spinal Cord Injury Objectives: The aim of the thesis was to analyze and compare the differences in the diagnosis of total body water, fat-free mass, and body fat between the multifrequency bioimpedance devices InBody S10 and Bodystat Quadscan 4000 in a group of people with spinal cord injury. Methods: A total of 17 people (8 women and 9 men) aged 28 to 64 years with a diagnosis of complete and incomplete spinal cord injury participated in the research. The body composition of the subjects was measured using the multifrequency bioimpedance devices Bodystat Quadscan 4000 and InBody S10 in this order, with a few minutes interval. The measurements were always carried out at the same workplace under the same conditions. Results: Significant differences were found in the complete set between the resulting values of total body water, fat-free mass, and body fat from the InBody S10 and Bodystat Quadscan 4000 devices. By comparing the results of body composition depending on gender, significant differences were demonstrated in the determination of selected body composition parameters between the InBody S10 and Bodystat Quadscan 4000 devices only in the male subgroup, but not in the female subgroup. KEYWORDS Body...
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Monitoring deviations of body composition measurements on the InBody 770 device
Kashkina, Aleksandra ; Bátorová, Michaela (referee) ; Adamík, Richard (advisor)
The bachelor thesis focuses on monitoring variations in body composition measurements using the InBody 770 instrument, which uses bioelectrical impedance (BIA) technology. The theoretical part of the thesis includes technical information on body composition components, a description of the principle of bioelectrical impedance and an introduction to the InBody 770. The practical part includes a pilot measurement, the results of which served as the basis for the main measurement. The main measurement involved three types of interventions: physical contact, application of a fat cream and drinking one liter of water. The measured values were analysed and evaluated using statistical tests. The results showed that each of these interventions had an effect on body composition.
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Methods for assessment of body composition
Krátká, Veronika ; Hrstka, Miroslav (referee) ; Vránová, Dana (advisor)
This bachelor thesis deals with the composition of the human body and methods of its analysis. The theoretical part is focused on basic food nutrients, nutrition recommendations, energy needs of the organism, body composition and methods for determining body composition. The experimental part contains a comparison of two methods for determining body composition – a method of bioelectrical impedance and a method NIR-spectrometry. Other section is devoted to a study of the eating habits of group of students, consisting of evaluation of diets and the questionnaires.
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Evaluation of the error rate of the InBody 770 and Bodystat 4000 devices in case of violation of the measurement conditions specified by the manufacturer.
Pevalová, Nicole ; Adamík, Richard (referee) ; Bedáňová, Kamila (advisor)
This bachelor thesis deals with the error rate evaluation of the InBody 770 and Bodystat QuadScan 4000 bioimpedance devices used for human body composition analysis. The theoretical part of the thesis contains technical knowledge about the individual instruments as well as a description of the bioelectrical impedance used by the aforementioned instruments for their operation. The practical part consists of measurements of subjects using both devices. The monitored variables are impedance, BFM (body fat) and TBW (total body water). The measurements consist of a reference measurement on each device separately and then four error measurements are made where the measurement conditions set by the manufacturers are not followed. The measured values of impedance, body fat total body water were statistically compared using a two-sample t-test. Instrument error was quantified using the mean relative deviation of the error measurements from the reference measurement.
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Relation of body activities on composition of the human body
Frechová, Vendula ; Zemanová, Jana (referee) ; Vránová, Dana (advisor)
This bachelor thesis deal with relationship between physical activities and constitution of a human body. The first theoretic part is focused on components of foodstuff which are important for human nutrition, energy metabolism and different types of movement activity. The particular components of a human body such as body water, active body mass and body fat are described in the next part of the thesis. Diagnostic methods of human body’s constitution are mentioned in the last part. An analysis of a body constitution has a task to diagnose body components quantitatively and therefore provides main information about fitness. The practical part of the thesis contains influence of physical activity on body constitution, which was tested on the first group of people, and a study of eating manners of the second group of people.
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Low carbohydrate regimes (low carb diet, the cyclical ketogenic diet, intermittent fasting) and their impact on cardiorespiratory fitness, body composition, muscular strength, sports performance and muscle cells resistance against exercise
Kysel, Pavel ; Vilikus, Zdeněk (advisor) ; Otáhal, Jakub (referee) ; Stackeová, Daniela (referee)
(EN) Low-carbohydrate diets are a debated topic in relation to athletic performance, overweight and obesity, but also to the health status of the individual. The impact on health and fitness is still ambiguous. The aim of this study was to compare and investigate the effect of a low carbohydrate, in this case ketogenic, diet on body composition, sports performance at different exercise loads and levels of selected circulating cytokines. Our study aimed to investigate the effects of a cyclic ketogenic reduction diet (CKD) vs. a nutritionally balanced reduction diet (RD) combined with regular resistance/aerobic training in healthy young men for 8 weeks. Participants in both the CKD and RD groups reduced their body weight, body fat, and body mass index (BMI) values. In the CKD group, the amount of fat-free mass (net body weight) and the amount of water in the body decreased. In the RD group, however, the volume of these parameters did not change significantly. Muscle strength parameters were not affected in the CKD group, while maximal strength performances in chest pulldown and lower limb press increased in the RD group. Similarly, endurance performances were not affected in the CKD group, whereas maximal power output and maximal oxygen consumption increased in the RD group. Our findings suggest that...
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Profile of youth footballers as goalkeepers
Zvoníček, Matěj ; Gryc, Tomáš (advisor) ; Bujnovský, David (referee)
Title: Profile of youth footballers as goalkeepers Objectives: The objective of this study was to compare selected parameters of body composition, level of static postural stability and level of lower extremities explosive strength between male and female goalkeepers in soccer and between selected age categories. Methods: A total of 33 male (n = 22) and female (n = 11) soccer goalkeepers participated in the study. They were divided into six test groups based on gender and age category (14-15, 16- 17 and 18-19 years) for performance assessment. These groups were assessed for basic anthropometric data (body height and weight), body composition parameters (% body fat, fat free mass), and level of static postural stability (deviations of the total center of pressure path) in four types of stands (narrow stand open eyes/closed eyes, right/left lower limb stand) and lower extremities explosive strength (jump height, relative force impulse, relative maximum force produced) in four types of jumps (counter movement jump free arms, counter movement jump, squat jump, drop jump). We used a Tanita MC-980MA bioimpedance device (Tanita Corporation, Japan) to assess body composition parameters, a Footscan pressure plates (RSscan International, Belgium) to assess postural stability, and a KISTLER 8611 force plates...
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Possibilities of the motor performance influencing, body composition and equilibrium assumptions in ten years old sedentary girls using aerobic forms of physical activity
Šimková, Michaela ; Bunc, Václav (advisor) ; Čepička, Ladislav (referee) ; Jaklová Dytrtová, Jana (referee)
Title: Influencing of the physical fitness, body composition and balance abilities in ten-year-old girls with sedentary lifestyle through the aerobic form of physical activity Goal of the study: The goal of the dissertation is to verify if there's any influence of Aerobics exercise on girl's physical fitness, their body composition and balance abilities. The study wants to find out if four-month Aerobics intervention (twice a week, 60 minutes of each session) can impact the physical fitness, body composition and balance abilities in ten-year-old girls. Methods: For physical fitness testing four items of standardized test battery UNIFIT test 6-60 (standing broad jump, sit/ups per minute, 4x10m Shuttle run, endurance Shuttle run) were used. For body composition testing the bioelectrical impedance method was used (tetra-polar multifrequency B.I.A. 2000 M). Body fat percentage, body water content, muscle mass were measured. For balance abilities testing the pressure plate Footscan was used - duration for 30 seconds, four types of stands: stand with eyes opened, with eyes closed, one leg stand od right/left leg with eyes opened. Results: After four-month of Aerobics intervention these results were found out: - The testing group is 1,1 cm higher in average, body weight increased of 1,4 kg in average....
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Selected physical abilites and golf skills in relation to the performance in elite junior golf players
Brožka, Matěj ; Zahálka, František (advisor) ; Halada, Andrej (referee) ; Zháněl, Jiří (referee)
Title: Selected physical abilities and golf skills in relation to the performance in elite junior golf players Objectives: The aim of the study was to objectify the level of golf skills and physical abilities and to identify the inter-relationships between the individual determinants of performance during the long-term development of elite junior golf players. The sub-objectives of the thesis were to: develop a valid and reliable golf skills test battery; objectify the level of physical abilities in relation to energy generation during the golf swing; objectify the level of individual golf skills in relation to game performance; and identify key determinants of performance over the long-term development of elite junior golf players. Methods: The thesis consists of one standardization study and two longitudinal-survey studies involving a total of 30 elite junior golfers (13-18 years old). Perennial year testing was conducted in laboratory and field conditions. Participants were measured in the level of individual golf skills using a developed golf skills test battery and also underwent measurements of anthropometric parameters, body composition parameters and physical abilities, more specifically muscle strength of the extensors and flexors of the knee and explosive muscle strength during vertical...
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