speed

Background: Functional Movement Screening (FMS) is a tool to determine the individual's potential for the possibility of sports injury. Aim: The purpose of this study was to determine the relationship between functional movement screening scores with flexibility factors, speed and agility in male students in Lorestan province. Materials and Methods: 370 male volunteer students aged 15 to 17 years participated in this study. Spearman correlation coefficient was used to determine the relationship among flexibility, power, speed and agility. Results: The present study showed that there were significant relation between scoring screen for functional movement and flexibility of the left leg, long jumping, high jumping in 15- year- old students. There were significant relations between scoring screen for functional movement and flexibility, flexibility of the right leg, flexibility of the left leg, long jumping, high jumping in 16- year- old students. In addition, in the 17- year- old students, there were significant relation between scoring screen for functional movement and flexibility of left leg, flexibility of the right leg and height jumping. Conclusion: In general, there were significant relation between FMS scores and flexibility and power in three groups of students. The probable cause of this connection can be attributed to in- line lunge tests, Hurdle step, active straight-leg-raise and deep squat, which are directly related to flexibility and power. Therefore, in order to improve the FMS scores of students, it is recommended that students be flexible and able to include in their training program

Purpose: The adequate use of sport-related modern knowledge such as new findings regarding nutritional and dietary supplements is an essential prerequisite of success in modern professional sport. Methods: In this semi-experimental study, 11 nationally prominent Taekwondoin with 8 to 12 years of experience and profile of (Age: 20±6 years, height: 178±12 cm, weight: 67±11kg, wrist circumference: 17±1 cm) were selected as subjects. The level of blood lactate, the time and speed of execution of Poomsae forms, and the number of Momdollyos successfully performed in 20 seconds were measured separately in a pre-test phase, after the intake of a placebo, and after the consumption of supplement drink. Results: Statistical results showed that lactate levels significantly increased compare to pre-tests in both groups. Although this increasing was not significant between groups in Momdollyo (p=0.599) and Poomsae (p=0.303). Indeed, number of successfully executed and also time of performance were significantly different in both Momdollyo (P=0.000) and    Poomsae (P=0.033). Conclusion: Intake of discussed customized decaffeinated supplement drink increased speed and number of execution of Poomsae forms and Momdollyo techniques but it seems that lactate levels depends on other factors in taekwondoin.

The purpose of this study is to compare the performance indicators between different football positions using the Global Positioning System (GPS) in Iranian Premier League football players. This is quasi-experimental study. To conduct this research, 18 football players who are members of a club in the Iranian Premier League were selected as the available sample, and the players were divided into 6 groups based on the game post. Then the data related to the players' performance (total distance, distance traveled with maximum speed, duration of maximum speed, maximum speed, sprints, number of accelerations, and number of decelerations) in 6 consecutive matches Collected using Global Positioning System (GPS). Also, one-way ANOVA analysis and SPSS software were used for data analysis at a significant level (α = 0.05). Based on the findings of the present study, between different football positions for the variables of total distance (P≤0.00), distance traveled at maximum speed (P≤0.00), duration of maximum speed (P≤0.00), maximum speed (P≤0.00), sprints (P≤0.00), number of accelerations (P≤0.00) and number of decelerations (P≤0.00) there are significant differences. There are many fundamental differences between the performance indicators of different football positions with each other it is necessary to recognize these differences and it is necessary to consider special exercises according to the physiological needs of each post.

The article specifies the human being based on the respiratory cycle, referring to the etymology of the word “spirit”. This word shares its root with the French word respiration (“breathing”) as well as the verb “to inspire,” suggesting breath and animation. Human temporality is made up of organic rhythmicity, from a weighing body that experiences itself as inscribed in time – this is the authentic meaning of the word “to exist”: to come from nowhere, without time, to somewhere, at some time. This article questions the compatibility between the demand for temporal efficiency, characteristic of the modern industrial age and the technophile ideology of communication, and the “service society” which purports to be more “caring” than the industrial one. Highlighting the suppression of the passage of time characteristic of the ideology of communication, where “time” is frozen in a self-reproducing present with no past or future, the author asserts that humane care is radically incompatible with a society that subsumes humanity, inscribed in time and in need of breath, under the ideology of a perpetual present. It is precisely on the basis of what specifies the human, namely breathing and desire, that the author proposes to consider how care might be possible in an ultra-technologized world. Drawing on an imaginary of movement and inspiration/aspiration/breathing deployed in choreographic performances and practices, the author invites the reader, as Simone Weil did, to substitute rhythm for cadence, to insert slowness into speed, and to favor the flow of time in a human reality that has become unbearable by dint of “modernization”. In so doing, we must reconsider head-on the fate that binds us, namely death, which no stasis in a perpetual present can eliminate, and which the metaphor of a risk of social necrosis invites us to reconsider. Accepting the passage of time, giving death back its face, is costly; but it's at this price that time can regain its humanizing value, as a sine qua non component of care.