scholarly journals The relationship between CA repeat polymorphism of the IGF-1 gene and the structure of motor skills in young athletes

2018 ◽  
Vol 65 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Krzysztof Karpowicz ◽  
Katarzyna Krych ◽  
Małgorzata Karpowicz ◽  
Witold Nowak ◽  
Piotr Gronek

            The map of candidate genes that can potentially affect physical fitness becomes larger every year, and that are associated with such aspects as respiratory and cardiovascular stability; body build and composition – especially muscle mass and strength; carbohydrate and lipid metabolism; response to training; and exercise intolerance. The aim of this study was the analysis of the determination by CA repeat polymorphism of the P1 promoter of the IGF1 gene the structure of motor skills in the two groups of polish young athletes in 2011-2013.            In this study, 350 young sportsmen representing different sports disciplines were examined (age = 15.5 ± 0.5 years), by genotyping the IGF1 gene and determining the structure of motor skills using the International Physical Fitness Test (IPFT) battery. Analysis of the multiple stepwise regression, used to determine the impact of the investigated motor skills on the indicator of the overall physical fitness, measured by the total score of the International Physical Fitness Test (IPFT), shows some regularity related to the character of the IGF1 gene polymorphism. It can be concluded that in the case of two groups of young boys athletes practicing various sports disciplines (kinds of physical exercise) have similar associations between CA repeat polymorphism of the P1 promoter of the IGF1 gene and the level of motor effects. Our results suggest that this polymorphism may be a genetic marker of the physical performance phenotype. We demonstrated that CA repeat polymorphism of the P1 promoter of the IGF1 gene in the groups who were homozygous and noncarriers was associated with strength predispositions. In the group who were heterozygous speed-strength aptitudes

1993 ◽  
Author(s):  
Joseph Knapik ◽  
Louis Banderet ◽  
Michael Bahrke ◽  
John O'Connor ◽  
Bruce Jones

Author(s):  
I Putu Eka Jaya ◽  
Nyoman Mangku Karmaya ◽  
Made Jawi ◽  
Wayan Weta ◽  
Ida Bagus Ngurah ◽  
...  

Physical fitness is ability to perform the activity or activities without feeling tired excessively. Physical fitness associated with a person`s organs to carry out its tasks properly every day without experiencing significant fatigue. In a child’s mental retardation with a les mobile lifestyle that will affect his physical fitness. The purpose of this study to determine which type of gymnastic exercise better to the physical fitness on the students in Sekolah Dasar Luar Biasa Kuncup Bunga Denpasar.This research used experimental method using Randomized study Pre and Post Test Group Design. The subjects in this study were students in Sekolah Dasar Luar Biasa Kuncup Bunga Denpasar. There were 18 students which is divided into two groups: group-1 is senam penguins and group-2 is senam ria anak Indonesia. Data were obtained after a six-week training analyzed by paired t-test and unpaired t-test.The results of physical fitness test before training with Senam Penguins was 23.39 ± 1.69 and the test results after the training was 27.87 ± 3.28. the physical fitness test in group-2 before training with Senam Ria anak Indonesia was 22.69 ± 1.76 and the results after training was 24.64 ± 2.11. Paired t-test in both group before and after training showed significant differences after training in group-1 and group-2 with a value of p > 0.05 with an increase in physical fitness test results of (19.15) in group-1 and (8.64) in group-2. The percentage increase physical fitness test results of group-1 with senam penguins is higher than those in group-2 with senam ria anak Indonesia.So we can conclude that the training of senam penguin in Sekolah Dasar Luar Biasa Kuncup Bunga Denpasar improved the physical fitness test results higher than senam ria anak Indonesia.


1994 ◽  
Vol 3 (4) ◽  
pp. 680-680 ◽  
Author(s):  
J.C. Wardlaw ◽  
S.G. Brodie ◽  
H.L. Seddon ◽  
T.M. Williams

2021 ◽  
Author(s):  
Kathryn L Van Pelt ◽  
Laura Wolff ◽  
Darren E Campbell ◽  
Gerald McGinty ◽  
Michael Zupan ◽  
...  

ABSTRACT Introduction Concussion has become the signature injury facing the U.S. military. However, little is understood about the relationship between military fitness and concussion recovery. The current study examined the recoveries of cadets at a U.S. Service Academy to determine whether preinjury physical fitness improved recovery and whether recovery was associated with post-injury physical fitness measures. Methods Participants were enrolled in a longitudinal study of concussion. Aerobic Fitness Test (AFT) and Physical Fitness Test (PFT) data were used to estimate cadet fitness. Survival analysis evaluated significant estimators of concussion recovery time. Linear regression models were used to explore the relationship between recovery duration and change in physical fitness scores. Results Between 2014 and 2017, 307 (n = 70; 22.80% Women) cadets who had sustained a concussion were enrolled. Preinjury physical fitness was not significantly associated with recovery duration (P > .05). Men and intercollegiate cadets took fewer days to reach recovery milestones. Compared to women, men had greater decrements in the Aerobic Fitness Test total score (P < .05) and increased 1.5-mile time postconcussion (P < .05). Women had greater decreases in push-ups postconcussion compared to males (P < .05). There was a trend for a negative association between days until asymptomatic and change in the Physical Fitness Test score (P = .07). Conclusion Preconcussion physical fitness levels do not appear to impact concussion recovery time among a highly physically fit cohort. Possible methods to reduce the effect of symptom duration on strength-related physical fitness should be investigated along with evaluating reductions in strength as a possible mechanism for postconcussion injury risk.


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