National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
EMG analysis of the influence of the water environment on walking in the elderly
Vodičková, Kamila ; Pánek, David (advisor) ; Neuwirthová, Svatava (referee)
Title: EMG analysis of the influence of the water environment on walking in the elderly Objectives: The main objective of this master thesis is to determine the degree of activation of selected muscles during walking on land and in water environment by using surface electromyography. The next component objective is to determine and compare dynamic co-contraction level of low extremity muscles during walking on land and in water. Methods: It is a pilot study which was attended by 5 participants. The average age of the research group was 67,2 years and was represented 3 men and 2 women. Activity of m. tibialis anterior, m. gastrocnemius, m. rectus femoris, m. biceps femoris and mm. erectores spinae in the level of ThL transition was recorded during walking on land and in water environment. EMG signal has been adjusted, analyzed and after that normalized EMG signal to MVC was compared in both environments. The records were compared both intraindividually and interindividually. At the end dynamic co-contraction level of selected muscles was evaluated and compared during gait in both environments. Results: Electromyographic analysis revealed that during walking in aquatic environment were analyzed muscles involved with less extent than during walking on land. Co-contraction level was lower in low...
The Comparison of Muscle Timing of Chosen Shoulder Girdle Muscles During Breaststroke Inside and Outside the Water
Böswart, Jonáš ; Pavlů, Dagmar (advisor) ; Novotná, Irena (referee)
Title: The Comparison of Muscle Timing of Chosen Shoulder Girdle Muscles During Breaststroke Inside and Outside the Water Objectives: The aim of this thesis was to compare timing and activation of chosen shoulder girdle muscles during breaststroke in the pool with counterflow and during excercise with rubber expander. Methods: It was analyzed timing and level of muscle activation during swimming and simulating the same movement of upper extremities in the air against the power of rubber expander. As an objetification was used surface electromyography. One profesional swimer took part in this experiment Results: Based on results it seemed that the movement of upper extremities are different in the pool and in the air during swimming stroke of breaststroke. Most of the measurement were different in the pool and in the air. Keywords: swimming, breaststroke, EMG, WaS-EMG, electromyography, shoulder girdle muscles, timing

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