semmelweis university - Faculty of Physical Education and Sport ...
semmelweis university - Faculty of Physical Education and Sport ... semmelweis university - Faculty of Physical Education and Sport ...
Alma Kisielienė Lithuanian Academy of Physical Education, Kaunas, Lithuania Supervisor: Dr. Rasa Jankauskiene, professor Expression of Self-Esteem and Aggression by Adolescent Judo Athletes Contemporary society witnesses the growth of the negative phenomena, which are often determined by an individual\'s relations with other persons, an inadequate self-esteem, lack of self-confidence, etc. Sport activity, continuous occupation good mutual team relations may affect an individual\'s emotional and psychological determination, stimulate activity, personal competences and inspiration for self-education. Research tasks: to determine and compare the expression of aggression and self-esteem among the adolescent judo athletes and non-athlete adolescents; to explore the relationship between aggression and self-esteem with the achieved sport results. Research sample: 48 respondents who practiced judo and 48 persons of the control group. Testing was carried out among 12-16 year old girls n=42 (37.5%) and boys n=70 (62.5 %). There were more boys among the judo athletes than among the non-athletes — 76.8 % and 48.2 % respectively (χ2=9.75; df=1; p
Ryo Kakigi 1 ,-Hisashi Naito 1 ,-Yuji Ogura 2 ,-Yuto Fukai 1 ,-Toshinori Yoshihara 1 ,-Noriko Ichinoseki-Sekine,-Shizuo Katamoto 1 . 1 Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan, and 2 St Marianna University School of Medicine, Kanagawa, Japan Supervisor: Dr. Hisashi Naito, professor Different Tesponse of Alpha-Actinin isoforms to Muscle Damage in Rat Skeletal Muscle Key words; muscle degeneration-regeneration, sarcolemma, tibialis anterior muscle Background: Mammalian skeletal muscle possesses two isoforms of alpha (α)-actinin that locate in the Z-line and form actin-actin cross-links. Our study founded that the expression levels of α-actinin-2 in rat hindlimb muscles were upregulated by long-term exercise training. Moreover, we showed that α-actinin-3 expressions in rat soleus muscle largely increased in response to hindlimb suspension. These results suggest that α-actinin isoform were highly responsive to the change of muscle structure. However, the response of α-actinin isoform to muscle damage inducing disruption of structure is little understood. Purpose: To determine the expression level of alpha actinin isoforms in damaged rat skeletal muscle. Methods: Male Wistar rats (14-wks-age) were divided into two groups: Control (CON, n=6, 277.0 ± 15.3 g) and Bupivacaine-treated (BPVC, n=6, 280.0 ±12.1 g). The rats in BPVC group were bilaterally injected into the tibialis anterior (TA) muscles with 0.5 ml of 0.5 % bupivacaine solution to induce muscle damage. Six days after the injection of bupivacaine, all rats were euthanized, and then TA muscles were quickly removed. The expressions level of αactinin-2 and α-actinin-3 in TA muscle were analyzed by immunoblot analysis. Results: TA muscle weight in BPVC group significantly decreased compared with CON group (p
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Ryo Kakigi 1 ,-Hisashi Naito 1 ,-Yuji Ogura 2 ,-Yuto Fukai 1 ,-Toshinori Yoshihara 1 ,-Noriko<br />
Ichinoseki-Sekine,-Shizuo Katamoto 1 .<br />
1 Graduate School <strong>of</strong> Health <strong>and</strong> <strong>Sport</strong>s Science, Juntendo University, Chiba, Japan, <strong>and</strong><br />
2 St Marianna University School <strong>of</strong> Medicine, Kanagawa, Japan<br />
Supervisor: Dr. Hisashi Naito, pr<strong>of</strong>essor<br />
Different Tesponse <strong>of</strong> Alpha-Actinin is<strong>of</strong>orms to Muscle Damage in Rat Skeletal Muscle<br />
Key words; muscle degeneration-regeneration, sarcolemma, tibialis anterior muscle<br />
Background: Mammalian skeletal muscle possesses two is<strong>of</strong>orms <strong>of</strong> alpha (α)-actinin that<br />
locate in the Z-line <strong>and</strong> form actin-actin cross-links. Our study founded that the expression<br />
levels <strong>of</strong> α-actinin-2 in rat hindlimb muscles were upregulated by long-term exercise training.<br />
Moreover, we showed that α-actinin-3 expressions in rat soleus muscle largely increased in<br />
response to hindlimb suspension. These results suggest that α-actinin is<strong>of</strong>orm were highly<br />
responsive to the change <strong>of</strong> muscle structure. However, the response <strong>of</strong> α-actinin is<strong>of</strong>orm to<br />
muscle damage inducing disruption <strong>of</strong> structure is little understood.<br />
Purpose: To determine the expression level <strong>of</strong> alpha actinin is<strong>of</strong>orms in damaged rat skeletal<br />
muscle.<br />
Methods: Male Wistar rats (14-wks-age) were divided into two groups: Control (CON, n=6,<br />
277.0 ± 15.3 g) <strong>and</strong> Bupivacaine-treated (BPVC, n=6, 280.0 ±12.1 g). The rats in BPVC<br />
group were bilaterally injected into the tibialis anterior (TA) muscles with 0.5 ml <strong>of</strong> 0.5 %<br />
bupivacaine solution to induce muscle damage. Six days after the injection <strong>of</strong> bupivacaine, all<br />
rats were euthanized, <strong>and</strong> then TA muscles were quickly removed. The expressions level <strong>of</strong> αactinin-2<br />
<strong>and</strong> α-actinin-3 in TA muscle were analyzed by immunoblot analysis.<br />
Results: TA muscle weight in BPVC group significantly decreased compared with CON<br />
group (p
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