scholarly journals Bioimpedance phase angle in elite male athletes: a segmental approach

2021 ◽  
Vol 41 (12) ◽  
pp. 125007
Author(s):  
Maurizio Marra ◽  
Olivia Di Vincenzo ◽  
Rosa Sammarco ◽  
Delia Morlino ◽  
Luca Scalfi
2014 ◽  
Vol 9 (5) ◽  
pp. 798-804 ◽  
Author(s):  
Josely C. Koury ◽  
Nádia M.F. Trugo ◽  
Alexandre G. Torres

The aim of the current study was to assess phase angle (PA) and bioelectrical impedance vectors (BIVA) in adolescent (n = 105, 12–19 y) and adult (n = 90, 20–50 y) male athletes practicing varied sports modalities. Bioelectrical impedance analysis (BIA) was performed with a single-frequency tetrapolar impedance analyzer after the athletes had fasted overnight for 8 h. PA and BIVA were determined from BIA data. PA presented correlations (P < .01) with body-mass index (r = .58) in all athletes and also with age in adolescent (r = .63) and adult (r = –.27) athletes. Compared with adults, adolescent athletes presented lower PA and higher frequency of PA below the 5th percentile of a reference population (P < .001). The adolescents with low PA were mostly football and basketball players. The BIVA confidence ellipses of adult and adolescent athletes were different (P < .001) between them and from their respective reference populations and were closer than those of adult and adolescent nonathletes. About 80% of the athletes were in the 95th percentile of BIVA tolerance ellipses and in quadrants consistent with adequate body cell mass and total body water. The adolescent athletes outside the 95th percentile ellipse were all football and basketball players who showed indications of decreased water retention and body cell mass and of increased water retention, respectively. PA and BIVA ellipses showed that the intense training routine of the athletes changed functional and hydration parameters and that the magnitude of these changes in adolescents may depend on the sport modality practiced.


1999 ◽  
Vol 20 (02) ◽  
pp. 128-130 ◽  
Author(s):  
P. Robson ◽  
A. Bllannin ◽  
N. Walsh ◽  
L Castell ◽  
M. Cleeson

2019 ◽  
Author(s):  
Carmen Hernandez-Garcia ◽  
Isabel Maria Cornejo-Pareja ◽  
Miguel Damas-Fuentes ◽  
Jose Ignacio Martinez-Montoro ◽  
Cristina Maria Diaz-Perdigones ◽  
...  

Author(s):  
Vegas-Aguilar Isabel Mª ◽  
Cornejo Pareja Isabel Maria ◽  
Gea Antonio Leiva ◽  
Francisco J Tinahones ◽  
García-Almeida Jose Manuel

2019 ◽  
Vol 6 (2) ◽  
pp. 34-45
Author(s):  
Visnja Djordjic

Summary Although sport can promote moral values and prosocial behavior in youth, numerous research shows that sports engagement alone does not guarantee that outcome. Instead of striving for fair-play and sport excellence which not exclude justness, solidarity and moral integrity, contemporary sport frequently follows the Lombardian ethic, where „winning isn’t everything, it’s the only thing”. Moral pause or bracketed morality, as described in sport, refers to the phenomenon of tolerance and acceptance of aggressive behavior or cheating, that will be morally condemned outside sports arenas. Accordingly, lower levels of moral reasoning and behavior have been identified in athletes and non-athletes in the sports-related situation in comparison to other life situations; in athletes when compared to non-athletes, in more experienced athletes, high-level athletes, team-sport athletes, and male athletes. Moral reasoning and behavior of athletes are influenced by contextual and personal factors, with coaches having a particularly important role to play. The positive influence of sport on the moral development of athletes might be related to pre-service and in-service education of coaches how to develop adequate moral atmosphere, and how to plan for moral decision-making as an integral part of everyday practice.


Author(s):  
S. M. Rasinkin ◽  
M. V. Dvornikov ◽  
I. A. Artamonova ◽  
V. V. Petrova ◽  
A. A. Kish ◽  
...  

The article presents results of evaluating efficiency of special cooling liquid influence on heat state of athletes at high temperatures. The study covered 7 male athletes of cyclic sports, with sport rank at least 1 adult, average age 19.29±1.80 years. All the athletes underwent double examination including: anamnesis and complaints records, doctor’s examination, subjective evaluation of heat sensations, weight measurements, thermometry (tympanic, sublingual, rectal and skin (in 5 points)), ergospirometric stress testing. Changes in the athletes’ heat state were evaluated via dynamics of weighted average skin temperature and rectal temperature. Moreover, subjective evaluation of heat sensations was considered. Efficiency of the cooling liquid was assessed via dynamics of exercises performance time, maximal oxygen consumption and anaerobic metabolism threshold. The cooling liquid use appeared to be expedientin sport teams of summer sports for specific exertion after individual tests for adverse allergic reactions.


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