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Discrimination of EMG signals from individual forearm muscles from surface EMG.
Krásná, Jana ; Otáhal, Jakub (advisor) ; Konopková, Renata (referee)
Title: Discrimination of EMG signals from individual forearm muscles from surface EMG Abstract: Location of electrodes for sensing the forearm muscles using surface electromyography is not accurately described. It is based only on recommendations by various authors in making researches. The aim of this study was to determine the optimal placement of electrodes on the forearm and describe it to another repeatable measurements. By analyzing the amplitude of EMG recording is confirmed not only the optimal location of electrodes, but either suggested muscle synergies that are possible to analyze more deeply in other studies because a detailed examination of muscle synergies are considerable application in upper limb prosthetics Keywords: Surface electromyography, forearm muscles, amplitude analysis
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Discrimination of EMG signals from individual forearm muscles from surface EMG.
Krásná, Jana ; Otáhal, Jakub (advisor) ; Konopková, Renata (referee)
Title: Discrimination of EMG signals from individual forearm muscles from surface EMG Abstract: Location of electrodes for sensing the forearm muscles using surface electromyography is not accurately described. It is based only on recommendations by various authors in making researches. The aim of this study was to determine the optimal placement of electrodes on the forearm and describe it to another repeatable measurements. By analyzing the amplitude of EMG recording is confirmed not only the optimal location of electrodes, but either suggested muscle synergies that are possible to analyze more deeply in other studies because a detailed examination of muscle synergies are considerable application in upper limb prosthetics Keywords: Surface electromyography, forearm muscles, amplitude analysis
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Shoes and its effect on the foot and posture
KRÁSNÁ, Jana
This thesis in focused on the influence of footwear not only directly on the foot and its sole but also on the posture and body as a whole. The foot is firstly the organ that enables movement of the locomotive system but which also provides direct contact with the surroundings and the way of getting information about it through proprioception. The foot also enables "keeping" to the ground we move on. It is connected through the muscle system with the levels above and so mutual influence of all body segments is established. The posture of lumbar spine, the function of the diaphragm, posture of the cervical spine and of the shoulder joints are the most important. Due to the fact that we spend two thirds of the day, or 16 hours a day, wearing shoes, their influence cannot be insignificant. Most types of shoes hinder the above mentioned functions of the feet through their faulty construction and their influence can be described more as that of a splint. Wearing some shoes can bring completely unnatural or even pathological foot posture which through the muscle systems further influences faulty posture of higher body segments. Data for this research were obtained using qualitative research with 12 students of the University of South Bohemia participating. The research group was divided into three categories by the type of worn footwear (naked, sport and healed footwear respectively). Subjective examination of the standing posture as well as examination using a lead was conducted. The walking gait was examined first barefoot, then in normal wear and finally on narrowed base. Finally the examination of the foot was performed where activity and function was tested using the Véle method, further the toe abduction and the grip tests. The aim of this research was to map the influences of wearing the different types of shoes on the body as a whole. The results show that a foot capable of full activity and function is closely connected to the correct activity of the diaphragm. On the contrary, with pathological function of the foot the function of the higher body segments will be influenced negatively. The foot is therefore concluded to play a major role in the function of the locomotive system and should always be taken into account in physiotherapy.
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Health and social impacts of alternate care for children at primary school
KRÁSNÁ, Jana
Social impacts of an alternative care for a child younger than the school age In present days, the divorce is considered to be a very good solution to every disharmony in the marriage. Therefore I consider very necessary to deal with children who come from divorced families because they are affected by a disintegration of their family the most. Especially children want the most of all to have the family as before and to continue to have both beloved parents, father and mother and not to lose them. In my bachelor thesis I therefore focused on an issue of the alternative care. This option appeared in the court practice 13 years ago by an amendment of the Family Act. Its purpose is to keep present both parents and the extended family for the child. This type of care should therefore closely reflect the needs of the child as much as possible. The aim of my bachelor thesis was to determine effects of the alternative care for child younger than school age and whether the alternative care meets the child´s needs better than a sole custody of one parent. Among the interviewees I examined what they consider to be positives and what are negatives of the alternative care. The respondents were staff of institutions of the social and legal protection from individual towns of the Czech Republic, then psychologists and parents who have some experience in the alternative care. To collect the data I used a method of the quantitative distribution of the anonymous questionnaires which were compiled from the questions I had prepared for the interview. In that way the sent questionnaires are very similar to the interviews. The research results that have been evaluated by a qualitative method are as follows: Respondents find as the positive impact of the alternative care the keeping of both parents. On the contrary the evaluated negative impact is a frequent migration and an unstable environment for the child. The most commonly used and tested interval for the alternation is one-week´s interval. The considered positives of the alternative care are especially in an active presence of both parents in the upbringing of the child and also its better readiness for a partner life and a better coping with the divorce. The frequent change of the child´s environment is again referred as negative. Furthermore, the results indicate that the child´s needs should be met through the alternative care similarly like they are in a family.
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