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The effect of eight weeks of floss banding on isometric grip strength and electromyography activity of wrist flexor muscles in judo athletes
Mr Seyed Mostafa Tabatabai, Dr Farideh Babakhani, Dr Ramin Balochi,
Volume 0, Issue 0 (11-2019)
Abstract
Floss banding, as a new and effective technique, is becoming increasingly popular in the field of sports training, sports injury prevention, and rehabilitation. Given the need for further studies on the effect of floss banding on isometric strength and neuromuscular activity, this study aims to investigate the effect of floss banding. This study was conducted on judo players with a training history of at least two years and an age range of 20-30. The test method was as follows: first, the subjects were given an isometric strength test using a dynamometer, and at the same time, the neural and muscular activity was recorded using an EMG device. Then, the floss band was wrapped according to the protocol and after that, the strength and neuromuscular activity test was taken from the subjects immediately and 20 minutes after unwrapping the floss band. The results showed that eight weeks of floss banding had no significant effect on isometric grip strength from the pre-test to the post-test (p=0.096). The test results showed that there was no significant difference between the average isometric grip strength of judo players during the measurement stages (p=0.75). There was no significant difference between the average surface electromyography activity of the FCR muscle of judo players during the measurement stages (p=0.94). There was no significant difference between the average surface electromyography activity of the FCU muscle of judo players during the measurement stages (p=0.51). According to the results, using floss bands in a single session had no significant effect on the isometric grip strength and the electromyography activity of the superficial flexor muscles of the forearm. Using floss bands as an 8-week protocol using at least two days a week had no positive effect on the isometric grip strength and the electromyography activity of the superficial flexor muscles of the forearm.
 
Provincial description of somatotype profile of 9-13 years old Iranian boys in martial arts
, , ,
Volume 10, Issue 4 (10-2012)
Abstract

Introduction: Different sports require athletes with special shape and size.
Findings of researches have reported the relationship between somatotype
components and athletic performance, similarity of somatotype of junior and
senior athletes in the same sport and, consistency of somatotype through
lifespan. In according to the fact that, somatotype is related to genetic factors
and not influenced by training and nutrition, this index can be helpful in
identification of talents. Lack of investigation examining somatotype profile of
Iranian population, the aim of present study was to describe somatotype profile
of Iranian 9-13 years old boys of country provinces in martial sports.
Methodology: present investigation is descriptive and field study. Population is
9-13 years old boys who participated in Basij Sport Organization leisure time
programs. Sample includes 1726 boys in that age rang. Anthropometric
characteristics were measured using ISAK instruction and somatotpye was
assessed using Heath-Carter method.
Findings: results showed that Ectomorphic component of Iranian boys was 3.1,
Mesomorphy was 4.1 and Endomorphic was 3.1. also revealed that the Iranian
9-13 years old boys have balanced mesomorph somatotype.
Discussion: based on previous researches, elite Karateka in worldwide top
teams like Germany have Ectomorph-Mesomorph type, also somatotype of elite
taekwondo ka is Ectomorph-Mesomorph too and in Judo somatotype of elite
athletes is Balanced Mesomorphy. Based on the finding of present study the
boys of Ilam, Fars, Qazvin, Qom, Lorestan, Khorasan Razavi and Yazd have
Ectomorph-Mesomorph somatotype and, boys in Mazandaran, Kerman,
Kemanshah, Kurdestan, Markazi, Azarbayjan Sharghi, Khouzestan and
Bousher provinces have balanced mesomorph somatotye.


Comparing The Selected Kinematic Variables Of The Four Common Methods Of Performing The Judan Mai-Mawashi-Geri Technique By Elite Male Karatekas
Salar Hariri, Heydar Sadeghi, Amir Ghiamirad, Saeed Nikookheslat,
Volume 23, Issue 29 (7-2025)
Abstract
Background and Objective: Since identifying the best way of performing the Judan Mai-Mawashi-Geri technique is one of the concerns of coaches and karatekas, the aim of this study was to compare the selected kinematic variables of four methods of implementing the Judan Mai-Mawashi-Geri technique by elite male karatekas.
Methodology: Eighteen elite male kumite practitioners voluntarily and purposefully participated in this study. Nine markers were attached to the anatomical points of the hitting foot and the four methods of implementing the Judan Mai-Mawashi-Geri technique were filmed by three Hero3 cameras at an imaging speed of 240 Hz. Using SkillSpector software (version: 1.3.2), the resultant of the peak velocity of the lower limb joints, total distance, total velocity, and total acceleration was directly obtained. The one-way analysis of variance and the Bonferroni post-hoc test (p≤0.05) were used with SPSS software (version: 22) for statistical analysis due to the normality of data distribution.
 Results: The results showed a significant difference in the four methods of performing the Judan Mai-Mawashi-Geri technique in the peak velocity of the pelvic, knee, and ankle joints as well as total distance, total velocity, and total acceleration.
Conclusion: According to the results، the first method of execution، which starts in the first phase with 90 degree hip flexion (knee lift)، due to high speed and the possibility of scoring in the shortest appropriate time interval، against other tactics, Due to the closure of the opponent's attack route، Dai and Deashi can be recommended as a more efficient technique to the Athlete of the Kumite.

 
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