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The acute effect of percusive therapy on postural stability and muscle activation in people with chronic ankle instability and controls
Michal, Lukáš ; Hank, Mikuláš (advisor) ; Šorfová, Monika (referee)
F2 = 0.15; with a significance level of α = 0.05 and a test power of β = - - (p=0.014) CAI NO PRE (CNP) and HEALTHY YES POST (HYPO) and between the CAI NO POST (CNPO) vs. HYPO (p=0.05). The only statistical difference (p=0.045) within CAI group was found in CNP vs. CAI YES POST (CYPO). Since there was no significant difference in the pre-tests between any of the groups (CNP and CYP), we may confirm the hypothesis of the effect of PT in postural stability (OE) test. In contrast, in the CE test, this change was observed between groups CNPO and CYPO (p=0.05). Since there was no pre-test difference between the CAI groups in CE parameter, we may also confirm the effect of PT in CE test, even though the intragroup outcomes between pre and post-test weren't sensitive enough to find significant (p<0.05) improvement. Unilateral postural stability surveyed in relation to PT showed increased bilateral asymmetry between DOM and NON in Flamingo test (expressed as %). Especially HYPO group revealed risen asymmetry after PT when compared to CNPO (p=0.007), CNP (p=0.015) and CYPO (p=0.05). Key finding was measured significant difference in intragroup parameter between HYP vs. HYPO (p=0.014), which confirmed increased bilateral asymmetry in unilateral postural stability HEALTHY subjects before and after use of PT, but not...
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Comparison of activation of the selected muscles during snowboarding on simulator and snow
Kubišta, Adam ; Gnad, Tomáš (advisor) ; Bačáková, Radka (referee)
Title: Comparison of activation the selected muscles during snowboarding on simulator and snow. Author: Bc. Adam Kubišta Supervisor: PaedDr. Tomáš Gnad Objective: This study aims to compare activation of selected muscles during basic skidded turn on snowboard on simulator and snow. Methods: Muscle activity was measured by a method called surface electromyography. The activation of selected muscles was examined using a comparative analysis. The timing of the participation of selected muscles during the basic skidded turn on snowboard on the Maxxtracks simulator and on the snow was compared. Results: This research with this method did not show a significant similarity in snowboarding on the Maxxtracks simulator and on the snow. The results of our work show the difference in timing of lower limb muscle participation on a snowboard during the basic skidded turn on the Maxxtracks simulator and on the snow. Each participant experienced a different participation of the observed muscles in the step cycle and no obvious movement pattern was discovered. Key words: Snowboarding, electromyography (EMG), muscle activation, simulator
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Comparison of activation lower limb muscules in slide turn and turn in telemark position
Pospíšilová, Eva ; Jindra, Matouš (advisor) ; Chrástková, Martina (referee)
Title: Comparison of activation of lower limb muscles in a slide turn and in a telemark position turn. Objectives: The aim of this theses is to compare the muscle activation of selected muscles of the lower limbs in the slide turn and in the telemark technique. Methods: The muscle activation of selected muscles was measured during skiing using surface EMG. All probands crossed the track in two ways. The first one was the telemark technique and the second one the middle slide turn technique. The received signal from each ride was processed and evaluated. The results of both rides were compared to each other. Results: We found differences in the order of muscle activation between telemark and slide turn. We did not find unequivocal motion for each technique, which we could be compared to each other. Each probe had a different individual order of muscle activation in each technique. Keywords: downhill skiing, telemark, EMG, muscle activation
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Kinesiological analysis of selected techniques in greco-romain wrestling
Žižka, Jan ; Pavelka, Radim (advisor) ; Zdobinský, Adam (referee)
Title: Kinesiological analysis of selected techniques in greco-romain wrestling Objective: The aim of this Thesis is to measure the extent to which various muscles are involved during the practice of the wrestling technique body lock, lift and suplex. It also considers the order in which the muscles are involved. The research applies surface electromyography. Methods: The theoretical part of this Thesis is predominantly based on the method of analysis and synthesis of the specialized literature. In the practical part, the surface electromyography was used to measure which muscles are involved in the body lock, lift and suplex. Subsequently, the difference of the motion performance of the four probands was evaluated. Furthermore, the timing of muscle activation was monitored. Results: The evaluation of the result showed that musculus rectus femoris is the most involved in the movement and the least musculus obliquus externus abdominis. In addition, it was found that m. Obliquus externus abdominis is involved first, while the last one is involved with m. Biceps femoris. Key words: Wrestling, electromyography, quality of movement, muscle activation
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Comparison of activation lower limb muscules in slide turn and turn in telemark position
Pospíšilová, Eva ; Jindra, Matouš (advisor) ; Chrástková, Martina (referee)
Title: Comparison of activation of lower limb muscles in a slide turn and in a telemark position turn. Objectives: The aim of this theses is to compare the muscle activation of selected muscles of the lower limbs in the slide turn and in the telemark technique. Methods: The muscle activation of selected muscles was measured during skiing using surface EMG. All probands crossed the track in two ways. The first one was the telemark technique and the second one the middle slide turn technique. The received signal from each ride was processed and evaluated. The results of both rides were compared to each other. Results: We found differences in the order of muscle activation between telemark and slide turn. We did not find unequivocal motion for each technique, which we could be compared to each other. Each probe had a different individual order of muscle activation in each technique. Keywords: downhill skiing, telemark, EMG, muscle activation
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Kinesiological analysis of selected techniques in greco-romain wrestling
Žižka, Jan ; Pavelka, Radim (advisor) ; Zdobinský, Adam (referee)
Title: Kinesiological analysis of selected techniques in greco-romain wrestling Objective: The aim of this Thesis is to measure the extent to which various muscles are involved during the practice of the wrestling technique body lock, lift and suplex. It also considers the order in which the muscles are involved. The research applies surface electromyography. Methods: The theoretical part of this Thesis is predominantly based on the method of analysis and synthesis of the specialized literature. In the practical part, the surface electromyography was used to measure which muscles are involved in the body lock, lift and suplex. Subsequently, the difference of the motion performance of the four probands was evaluated. Furthermore, the timing of muscle activation was monitored. Results: The evaluation of the result showed that musculus rectus femoris is the most involved in the movement and the least musculus obliquus externus abdominis. In addition, it was found that m. Obliquus externus abdominis is involved first, while the last one is involved with m. Biceps femoris. Key words: Wrestling, electromyography, quality of movement, muscle activation
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Monitoring the activation of selected muscle groups of clients with spinal cord injury
Krátký, Jakub ; Jelen, Karel (advisor) ; Šorfová, Monika (referee)
KRATKY, Jakub. Monitoring the activation of selected muscle groups of clients with spinal cord injuries. Prague: Charles University, Faculty of Physical Education and Sport, 2013. 82 pages. Supervisor Doc. PaedDr. Karel Jelen, CSc The aim of this thesis is to monitor the activation of selected muscle groups (musculus deltoideus pars anterior, musculus deltoideus pars posterior, musculus triceps brachii caput laterale and musculus trapezius pars descendus) during double poling ergometry. Nine subjects with different spinal cord lesions volunteered to participate in the study. The surface electromyography is used to detect the musculus activation. The monitoring of four muscle groups is devided into three phases. Firstly, all the participants double-poled for one minute at moderate intensity according to the Borg scale. Each participant underwent a 10-minute intervention to correct the posture. In the last phase the volunteers exercised again for one minute at moderate intensity. The aim of the intervention is to decrease muscle activation of musculus deltoideus pars anterior and musculus trapezius pars descendus (muscles with a tendency to hypertonia during wheelchair propulsion and activity of daily living) and to increase muscle activation of musculus deltoideus pars posterior and musculus triceps...
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