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Study of changes in adiponectin, leptin, and plasma lipid profile of Inactive men the result 24 session, playing futsal
Mr Reza Amini, Dr Hamid Rajabi, Dr Mohamad Reza Amir Seifadini, Mr Koros Divsalar,
Volume 14, Issue 12 (10-2016)
Abstract

The aim of the study, study of Changes in adiponectin, leptin, and plasma lipid profile of Inactive men the  result 24 session, playing futsal. In this study, 20 healthy men 20 to 30 years old, the experimental group (age: 23/5±2/58, weight: 69/36±14/48, body composition: 22/82±4/41) of controls (age: 24/6±2, weight: 68/22±12/71, body composition: 21/99±3/58) inactive randomly divided into control and experimental groups. Experimental groups in each session, indoor futsal training program for eight weeks and will run three sessions per week, while the control group had normal activity. Before the training program, and 48 h after the last session of play, 5 ml blood samples for measurement of adiponectin, leptin, and plasma lipid profile, blood was collected from the participants. After 48 hours of the last training session before the test was re-sampled in the same conditions. T-test results showed that exercise increased adiponectin and high-density lipoprotein and decreased leptin, low density lipoprotein, lipoprotein (a), triglycerides and cholesterol are, however, differences in adiponectin was not significant (P≤0.05). Overall, this study can be taken that these exercises in a short period of eight weeks futsal, adiponectin does not cause significant changes but the significant changes in leptin, high-density lipoprotein, low density lipoprotein, lipoprotein (a), triglycerides and cholesterol in the blood plasma.
 


Kimematic Analysis of Giakozuki Judan and Chudan Punches in Professional and Semi-Professional Karate Men
Dr Amir Ghiamirad, Mr Farhad Esmkhani, Mr Salar Hariri,
Volume 19, Issue 22 (12-2021)
Abstract
The aim of this study was to investigate the kinematic characteristics of the two skills of Judan and Chudan Giakozuki Karate, professional and semi-professional male men. Methods: 10 Professional and 10 semi¬-professional amateur male Karate athlethes participated in this study and performed the techniques. The ground reaction force during the impact, which was an indirect parameter to calculate the impact power, was measured using a force plate with a frequency of 250 Hz. The ADXL320 accelerometer was also used to calculate the hand transfer acceleration. The motion data were recorded using Phase Space real time optical tracking system with 8 high speed cameras at 480 fps. Then the kinematic parameters associated with each fist were modeled and quantified by a three-dimensional imaging system.Paired t-test and independent t-test were used to analyze the research data.The test results in the parameters of wrist, elbow, shoulder movement in Judan and Chuadan Gyakozuki skills, ground reaction force, peak speed of elbow and shoulder in Chuan Gyakozuki skill, peak wrist velocity in Judan Gyakozuki skill in semi-professional karate and professional showed a significant difference. Fainaly, the results showed that the type of impact and the level of experience of karatekas were the main factors in determining the size of the displacement parameters and peak velocity, which are considered an important factor in success in competitions and lead to better scores in competitions.

Comparing The Effect Of Fatigue Induced By Endurance Running And Sprinting On The Knee Muscles Co-Contraction In Active Young Women: With The Approach Of Identifying The Origin Of Fatigue
Leila Ghazaleh, Farahnaz Salar, Fatemeh Sharifi,
Volume 22, Issue 28 (12-2024)
Abstract
This study aimed to compare the effect of fatigue induced by endurance running and sprinting on the knee muscle co-contraction in active young women. Methodology: Thirteen active young women (20-30 years, BMI 20-25kg/m2) were randomly selected. Subjects performed fatigue protocols during two sessions with a four-day interval. The activity of the vastus-medialis and vastus-lateralis muscles was detected using an electromyography device before and after running 400-meter and 3000-meter during the execution of knee extension and their co-contraction was calculated. Two-way repeated measure was used to analyze the data. Results: There was no significant difference between the co-contraction of the selected muscles before and after sprinting (p=0.3) and endurance running (p=0.19) and no significant difference (p=0.85) between the difference in co-contraction rate in the pre-test and post-test of sprinting and endurance running. Conclusion: Since there was no difference between the effect of fatigue caused by sprinting and endurance running on the co-contraction of the selected muscles, likely, the involvement of central factors in the appearance of fatigue caused by 400-meter sprinting and 3000-meter endurance running is similar and insignificant. The emergence of fatigue after implementing both protocols may be more due to environmental factors.

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