by Ramon Cruz, Francisco de Assis Manoel, Bruno Pereira Melo and Sandro Fernandes da Silva
Original Research
Objectives: This study aims to evaluate the Influence of two distinct Periods of the day on maximal aerobic power in young Athletes mountain bike. Volunteers are the mountain bike Athletes, 37.83 ± 8.87 years, and underwent two progressive maximal exercise test on a cycle Ergometer at two times of day. Gauging the behavior glucose and heart rate. The verification of normality of data was performed by the Shapiro-Wilk test for analysis of variables was Adopted t test for paired samples. Statistical we Adopted an evidence for p <0.05. Results: Were the glucose threshold results not statistically significant. However trends indicating were there a better outcome in the evening. The maximal workload, maximal heart rate and glycemic load threshold. Conclusions: The results show trends on performance and circadian rhythm, and yet, the routine or team chosen for sensivity training appears to the circadian cycle.why do men cheat on their girlfriends
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American Journal of Sports Science and Medicine. 2014, 2(2), 65-69. DOI: 10.12691/ajssm-2-2-2
Pub. Date: March 16, 2014
16153 Views5130 Downloads33 Likes
by Nikolaidis P.T.
Original Research
The aim of this study was to examine the effect of age on leg muscle power in male soccer players and to provide reference data. Male soccer players, all members of competitive soccer clubs and classified into six age groups (younger than 10 yr, U10, n = 17; U12, n = 27; U14, n = 70; U16, n = 92; U18, n = 33; older than 18 yr, Adults, n=36), participated in our study. They were examined for anthropometric characteristics, body composition, and performed the arm-swing countermovement vertical jump (CVJ) as a measure of leg muscle power. A one-way analysis of variance revealed significant differences between age groups with respect to CVJ (F5,269 = 76.46, p < 0.001, η2 = 0.59). Our findings indicated that the older the age group, the higher the CVJ (e.g., 19.8±3.9 cm in U10, 30.0±5.9 cm in U14 and 41.8±6.0 cm in adult group). This result was in agreement with the significant and large correlation coefficient between age and CVJ (r = 0.68, p < 0.001). Although the cross-sectional design of our study did not allow inferring causal relationship between age and CVJ, it is reasonable to support that there are large gains in leg muscle power with development in soccer players. These gains are accompanied by large increase of FFM during the same period. The findings of this study could be useful for coaches and trainers in the context of talent identification and training optimization.neurontin 400mg
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American Journal of Sports Science and Medicine. 2014, 2(2), 60-64. DOI: 10.12691/ajssm-2-2-1
Pub. Date: March 03, 2014
33310 Views8833 Downloads35 Likes