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Wyświetlanie 1-2 z 2
Tytuł:
Age-related differences in the symmetry of electromyographic activity and muscle force in lower limbs
Autorzy:
Szpala, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/306539.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
elektromiografia
mięsień
kobieta
electromyography
quadriceps femoris
biceps femoris
female
Opis:
Increased reaction time and asymmetrical force generation in muscles may elevate the risk of falling among seniors. Therefore, it seems useful to analyze the symmetry of strength and amplitude parameters that evaluate neuromuscular control. The aim of the study was to evaluate force parameters for the quadriceps and biceps femoris muscles in young and older women performing maximal voluntary contraction. Methods: Fifty women (1 group in their twenties and the other in their sixties) participated in the study. The study used surface electromyography methodology and measured peak torque under static conditions. Electromyographic signals and peak torque were recorded separately in knee extensors and flexors of the right and left lower limbs after a visual signal. The following parameters were selected for analysis: 1) maximum the electromyographic amplitude signal; 2) peak torque; 3) rate of torque development; 4) relative force; and 5) “flexor–extensor” ratio. Results: The analysis demonstrated a decrease in the values of all parameters in the elderly group and symmetry in EMG amplitude in both the younger and older women. Asymmetry was found in the group of elderly women for peak torque and the relative force for knee flexors and “flexor–extensor” ratio. Conclusions: The decline in values of force parameters in knee flexors and their asymmetry (not extensors) revealed in the elderly group might prove an important factor in the assessment of risk factors for falling among the elderly.
Źródło:
Acta of Bioengineering and Biomechanics; 2019, 21, 4; 139-146
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effects of kinesiotaping applied to delayed-onset muscle soreness of the quadriceps femoris
Autorzy:
Boguszewski, Dariusz
Szkoda, Sylwia
Adamczyk, Jakub Grzegorz
Piesio, Sylwia
Białoszewski, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/1921972.pdf
Data publikacji:
2020-03-04
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
kinesiotaping
DOMS
quadriceps femoris muscle
recovery
Opis:
The aim of this work was to estimate the effectiveness of kinesiotaping (KT) in the reduction of delayed-onset muscle soreness (DOMS) of the quadriceps femoris. 41 young women were examined. In the study, two groups applied kinesiotaping - the first with a relaxing application (Group 1); and the second with a lymphatic one (Group 2). Women from the control group used no treatment to help in the exertion restitution. All of the women performed a vertical jump test and training of their lower limbs (5 series of squat jumps). The research tools were the VAS scale (for the estimation of pain) and the Borg Scale (for a subjective estimation of the intensity of effort). The measurements (the vertical jump test and the intensification of the pain) were repeated 24, 48, 72 and 96 hours after the training where the exertion occurred. In all of the groups, the greatest regress of the vertical jump test was observed between the first and the second measurement - and this difference was statistically essential (p<0.01). The least fall in power was noticed in the women who had received the lymphatic KT application; while the greatest fall in results of vertical jump test was observed in the persons with the KT relaxing application. The greatest level of pain in Groups 1 and 2 was noted during the second measurement, which was 24 hours after the training; whereas in the control group, the greatest pain was observed in the third measurement. It can be concluded that the kinesiotaping has a bearing on the acceleration of the regeneration and increased the efficiency of the examined muscles.
Źródło:
Physical Activity Review; 2020, 1, 8; 39-45
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
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