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quarta-feira, 27 de outubro de 2010
Estudo sobre respostas imunes em luta de kickboxing conduzido por docentes da EEFE-USP
EFFECT OF A KICKBOXING MATCH ON SALIVARY CORTISOL AND IMMUNOGLOBULIN A
Author(s): Moreira A1, Arsati F2, Lima-Arsati YBD2, Franchini E1, de Araujo VC3
PERCEPTUAL AND MOTOR SKILLS Volume: 111 Issue: 1 Pages: 158-166 Published: AUG 2010
Abstract: The hypothesis that salivary cortisol would increase and salivary immunoglobulin A (IgA) decrease after a kickboxing match was tested among 20 male athletes. Saliva samples collected before and after the match were analyzed. Salivary cortisol and salivary IgA concentrations (absolute concentration, salivary IgAabs) and the secretion rate of IgA (salivary IgArate) were measured by enzyme-linked immunosorbent assay. A Wilcoxon test for paired samples showed significant increases in salivary cortisol from pre- to postmatch. No significant changes were observed in salivary IgAabs or secretory IgArate and saliva flow rate. This study indicates that a kickboxing match might increase salivary concentration and thereafter it could be considered a significant source of exercise-related stress. On the other hand, the effect of a kickboxing match on mucosal immunity seems not to be relevant.
Author(s): Moreira A1, Arsati F2, Lima-Arsati YBD2, Franchini E1, de Araujo VC3
PERCEPTUAL AND MOTOR SKILLS Volume: 111 Issue: 1 Pages: 158-166 Published: AUG 2010
Abstract: The hypothesis that salivary cortisol would increase and salivary immunoglobulin A (IgA) decrease after a kickboxing match was tested among 20 male athletes. Saliva samples collected before and after the match were analyzed. Salivary cortisol and salivary IgA concentrations (absolute concentration, salivary IgAabs) and the secretion rate of IgA (salivary IgArate) were measured by enzyme-linked immunosorbent assay. A Wilcoxon test for paired samples showed significant increases in salivary cortisol from pre- to postmatch. No significant changes were observed in salivary IgAabs or secretory IgArate and saliva flow rate. This study indicates that a kickboxing match might increase salivary concentration and thereafter it could be considered a significant source of exercise-related stress. On the other hand, the effect of a kickboxing match on mucosal immunity seems not to be relevant.
Resultado da primeira fase do processo para ingresso no mestrado da EEFE-USP
Para os futuros candidatos, vale a pena computar as notas, especialmente a do CV.
http://citrus.uspnet.usp.br/eef/uploads/arquivo/Resultado%20da%20Primeira%20Fase%20do%20Processo%20Seletivo%20-%20P%C3%B3s-gradua%C3%A7%C3%A3o.pdf
http://citrus.uspnet.usp.br/eef/uploads/arquivo/Resultado%20da%20Primeira%20Fase%20do%20Processo%20Seletivo%20-%20P%C3%B3s-gradua%C3%A7%C3%A3o.pdf
Enfim algo sobre os judocas coreanos
Influence of Performance Level on Anaerobic Power and Body Composition in Elite Male Judoists.
Kim J, Cho HC, Jung HS, Yoon JD.
1Department of Physical Education, College of Sports Science, Yongin University. Yongin City, Gyeonggi-do, Republic of Korea; and 2Department of Physical Education, College of Leisure and Recreation, Kyungwoon University. Gumi-si, Gungbook, Republic of Korea.
Abstract
Kim, J, Cho, H-C, Jung, H-S, and Yoon, J-D. Influence of performance level on anaerobic power and body composition in elite male judoists. J Strength Cond Res 24(X): 000-000, 2010-This study examined the relationship between 30-second anaerobic power and body composition by performance level in elite Judoists. During a 3-month period, 10 male Korean Judo national team athletes (NT), 26 male university varsity team athletes (VT), and 28 male junior varsity team athletes (JT) were assessed for 30-second anaerobic power and body composition at the Youngin University. Anaerobic power was measured using a 30-second Wingate test. Body composition was assessed via bioelectric impedance analysis in standardized conditions using BioSpace (Korean)-specific prediction formulas. All testing occurred at the beginning of the winter nonseason period but excluded a brief weight-loss period before the competition phase. Anaerobic power measures were significantly greater (p < 0.05) in NT and VT than in JT. Fat-free mass (FFM), muscle mass (MM), and total body water in JT were also greater than in VT and JT (p < 0.05). Muscle mass in VT was significantly lower than in NT (p < 0.05). Fat-free mass in NT was strongly correlated to mean and peak anaerobic power (r = 0.77, p = 0.009; r = 0.87, p < 0.001, respectively). Varsity team athletes also indicated a moderate association between FFM and peak and mean anaerobic power (r = 0.63, p < 0.001; r = 0.48, p = 0.013, respectively). However, relationship between FFM and anaerobic power was not statistically significantly correlated in JT (r = 0.14, p = 0.470; r = 0.23, p = 0.232, separately). In conclusion, our data indicated that anaerobic power is closely correlated with increase in FFM and MM and was different dependent among performance levels. Further research in the field is warranted to elucidate the Judo-specific relationship between FFM and performance.
Kim J, Cho HC, Jung HS, Yoon JD.
1Department of Physical Education, College of Sports Science, Yongin University. Yongin City, Gyeonggi-do, Republic of Korea; and 2Department of Physical Education, College of Leisure and Recreation, Kyungwoon University. Gumi-si, Gungbook, Republic of Korea.
Abstract
Kim, J, Cho, H-C, Jung, H-S, and Yoon, J-D. Influence of performance level on anaerobic power and body composition in elite male judoists. J Strength Cond Res 24(X): 000-000, 2010-This study examined the relationship between 30-second anaerobic power and body composition by performance level in elite Judoists. During a 3-month period, 10 male Korean Judo national team athletes (NT), 26 male university varsity team athletes (VT), and 28 male junior varsity team athletes (JT) were assessed for 30-second anaerobic power and body composition at the Youngin University. Anaerobic power was measured using a 30-second Wingate test. Body composition was assessed via bioelectric impedance analysis in standardized conditions using BioSpace (Korean)-specific prediction formulas. All testing occurred at the beginning of the winter nonseason period but excluded a brief weight-loss period before the competition phase. Anaerobic power measures were significantly greater (p < 0.05) in NT and VT than in JT. Fat-free mass (FFM), muscle mass (MM), and total body water in JT were also greater than in VT and JT (p < 0.05). Muscle mass in VT was significantly lower than in NT (p < 0.05). Fat-free mass in NT was strongly correlated to mean and peak anaerobic power (r = 0.77, p = 0.009; r = 0.87, p < 0.001, respectively). Varsity team athletes also indicated a moderate association between FFM and peak and mean anaerobic power (r = 0.63, p < 0.001; r = 0.48, p = 0.013, respectively). However, relationship between FFM and anaerobic power was not statistically significantly correlated in JT (r = 0.14, p = 0.470; r = 0.23, p = 0.232, separately). In conclusion, our data indicated that anaerobic power is closely correlated with increase in FFM and MM and was different dependent among performance levels. Further research in the field is warranted to elucidate the Judo-specific relationship between FFM and performance.
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