Throw Distance Research Articles

Studi Performansi Mesin Pelontar Pakan Ikan terhadap Gaya Sentrifugal

The fish feed thrower machine can disperse the feed over a wide coverage area in a short time. Throw distance is an important parameter that must be considered in a fish feed thrower machine. Distribution of feed from the fish feed thrower machine is due to the centrifugal force. This study aims to analyze the rotational speed (RPM) of the fish feed thrower machine 360° against throw distance and centrifugal force of the feed grains. Maximum results obtained for throw distance, throw speed and centrifugal force occur at RPM 600. Farthest throw distances from the feed codes 781-1, 781 and 782 are 2.20 m, 1.89 m and 1.66 m. Maximum throw speeds of the feed codes 781-1, 781 and 782 are 14,667 m/s, 12,583 m/s and 11,083 m/s. Maximum centrifugal force of the feed codes 781-1, 781 and 782 are 0.504x10 -3 N, 2.711x10 -3 N and 5.796x10 -3 N . This shows that the centrifugal force on the feed grains causes the rotational speed (RPM) to affect the distance and speed of the feed.

Ice aggregation and ice throw from small wind turbines

Small wind turbines are an attractive technology for decentralized electricity generation. However, there are some risks, which need to be evaluated to enable safe operation of the turbines. In cold climates, risk can arise from icing and subsequent ice throw from the moving turbine blades. This study aims to clarify the risk from ice throw from small wind turbines using observations and an experimental approach. Icing of small wind turbines was monitored and icing intensities evaluated. Ice fragments were collected, 3D-scanned and used to generate realistic specimens using additive manufacturing. The specimens were subsequently thrown using a device simulating a small wind turbine. A three-dimensional reconstruction of the throw trajectories allowed to measure the impact velocity and comparison with ballistic models. The monitoring campaign showed that geometry of ice aggregation is similar to large turbines, while the relative icing intensity is substantially higher. Experimental throw distances were found to be in the range of twice the height from which the fragments were thrown. The impact velocity was found to be below 20m/s, resulting in a minimum weight of potentially deadly ice fragments of 200g. A comparison of the trajectories with the model of a throw parabola shows that drag forces have a substantial impact on velocity and maximum distance and thus cannot be ignored. Comparison with established ballistic models shows significant differences between simulation and experiment. It can be concluded, that ice throw is a relevant risk factor for small wind turbines in cold climates, which needs to be assessed further. Especially considering urban use, additional safety measures are required.

Socio-Cultural and Somatic Factors Associated with Children's Motor Competence.

The purpose of this study was to assess the effect of somatic and socio-cultural factors on children’s motor competence (MC). MC was assessed through the standing long jump (SLJ), distance throw of a tennis ball (TTB), and 20 m dash (20 m) in 181 children (84 girls) with a mean age of 6.10(0.47) years. The effect of socio-economic status, house/living space, educational practices, the child’s interaction with peers and siblings, and the sum of five skinfolds (SS) were analysed via structural equation modelling (SEM) in each motor skill. The SEM models displayed a good fit to the data. In addition, standardized direct effects are significant on different outcome variables, except for brotherhood relationship (BR) and peer relationship in TTB, and 20 m dash and BR in standing long jump (SLJ). SS are negatively related to all motor skills.

6-Phenylhexyl silane derivatized, sputtered silicon solid phase microextraction fiber for the parts-per-trillion detection of polyaromatic hydrocarbons in water and baby formula.

We report the fabrication of 6-phenylhexylsilane derivatized, sputtered silicon, solid phase microextraction fibers that show parts per trillion detection limits for polyaromatic hydrocarbons, and negligible carry over and phase bleed. Their fabrication involves sputtering silicon on silica fibers under various conditions. Six different fibers were evaluated by generating three different thicknesses of sputtered silicon at two different throw distances, which altered the morphologies of the silicon surfaces. All of the fibers were coated with similar thicknesses of 6-phenylhexylsilane (ca. 2nm). These fibers were characterized with multiple analytical techniques. The optimum fiber configuration was then used to analyze polyaromatic hydrocarbons via direct immersion, gas chromatography mass spectrometry. Our best fiber for the extraction of low molecular weight polyaromatic hydrocarbons in water had similar performance to that of a commercial fiber. However, our fiber demonstrated ca. 3 times the extraction efficiency for higher molecular weight polyaromatic hydrocarbons. In addition, it outperformed the commercial fiber by showing better linearity, repeatability, and detection limits. A method for analyzing polyaromatic hydrocarbons in baby formula was developed, which showed very good linearity (0.5-125 ppb), repeatability (2-26%), detection limits (0.12-0.81 ppb), and recoveries (103-135%). In addition, our fiber showed much less (negligible) carry over and phase bleed than the commercially available fibers.

Fault interpretation uncertainties using seismic data, and the effects on fault seal analysis: a case study from the Horda Platform, with implications for CO<sub>2</sub> storage

Abstract. Significant uncertainties occur through varying methodologies when interpreting faults using seismic data. These uncertainties are carried through to the interpretation of how faults may act as baffles or barriers, or increase fluid flow. How fault segments are picked when interpreting structures, i.e. which seismic line orientation, bin spacing and line spacing are specified, as well as what surface generation algorithm is used, will dictate how rugose the surface is and hence will impact any further interpretation such as fault seal or fault growth models. We can observe that an optimum spacing for fault interpretation for this case study is set at approximately 100 m, both for accuracy of analysis but also for considering time invested. It appears that any additional detail through interpretation with a line spacing of ≤ 50 m adds complexity associated with sensitivities by the individual interpreter. Further, the locations of all seismic-scale fault segmentation identified on throw–distance plots using the finest line spacing are also observed when 100 m line spacing is used. Hence, interpreting at a finer scale may not necessarily improve the subsurface model and any related analysis but in fact lead to the production of very rough surfaces, which impacts any further fault analysis. Interpreting on spacing greater than 100 m often leads to overly smoothed fault surfaces that miss details that could be crucial, both for fault seal as well as for fault growth models. Uncertainty in seismic interpretation methodology will follow through to fault seal analysis, specifically for analysis of whether in situ stresses combined with increased pressure through CO2 injection will act to reactivate the faults, leading to up-fault fluid flow. We have shown that changing picking strategies alter the interpreted stability of the fault, where picking with an increased line spacing has shown to increase the overall fault stability. Picking strategy has shown to have a minor, although potentially crucial, impact on the predicted shale gouge ratio.

Study on the Parameter Equation of Coal and Gas Outburst Hole

Studying the parameters of a coal and gas hole (CGOH), such as the hole shape, hole size and volume, coal quantity of CGOH, coal throw distance, calculated hole density, and gas pressure, is helpful in revealing the coal and gas outburst mechanism. In this study, we found that there were close mathematical relationships between these parameters. A nonlinear composite function relationship (CGOH parameter equation) was observed between the coal quantity, CGOH volume, and throw distance. The correctness of these relationships was verified using the Origin software. The stagnation point and inflection point of the parameter curve were obtained through the derivation of the parameter equation, and the transformation path from coal and gas outburst to coal and gas extrusion or dumping was clarified. At the same time, the equations of gas pressure, coal quantity, and throw distance are derived.

Mathematical simulation approach to diagnose performance limiting factor of shot put technique

The applied mathematics simulation for human mot ion is one breakthrough of sports biomechanics in sports science. The optimum rate of energy generated in muscle s and knees, hips, shoulders and wrists play a significant role and influence the throw distance. Kinetic analysis of parabolic path is predominantly determined by the speed of release (V0), angle of release (α) and height of at release (h0 ) at the delivery phase of throwing. The inequality of anthropometry, physical and quality of technique requires coaches to develop mathematical simulation to diagnose performance. This study describes mathematical simulation of speed (V0), angle (α) and height of release (h0) against a throw distance. The 28 male sport students (19.3±1.2 years, weight of 68.2±5.5 kg, height of 169.7±5.4cm) represent a linear shot put (4kg), recorded with 2 HD cameras in sagittal plane and analysed with kinovea software for kinematic motion. There is significant relationship between speed-(p=0.001), angle-(p=0.003) and height of release (p=0.004) with performance. The rate of speed (7.23±0.75ms-1), angle (44.67± 9.19°) and height of release was (194±7.72cm). The greatest shot performance was 12.57m, applies 7.98±0.02ms of speed, 48.59±2.18° of angle and 199.63±2.21cm of height. Mathematical Simulation can be applied to predict shot put performance through kinematic study.

Deterministic Throw Model for Longitudinal Rear-End Vehicle to Cyclist Collisions

In this paper a throw distance model for vehicle-cyclist collisions is presented, based on a deterministic approach with a cyclist mass point representation. Vehicle-cyclist collisions are characterized by three distinct impacts, which determine the entirety of the cyclist’s kinematics, also throw distance implicitly. Cyclist kinematics are analyzed by breaking down the motion into multiple phases and assessing the corresponding distance travelled by the cyclist for each phase. The model takes into account massic and cyclist launch parameters, as well as road declivity and ground friction. The verification of the model was carried out in two methods. First, model output data was compared with the results of three real-scale crash-tests performed in a rear impact typology. Secondly, a multibody model was generated for two of the carried-out crash-tests and used to simulate collisions at different vehicle impact velocities (4.1 ∼ 27.8 m/s). Input data for the model was extracted from each simulation and used to compare the results yielded by the model and the multibody software. A comparison between model output data and available field data was also undertaken.

Simulation and Experimental Validation of the Uniformity of Thermally Evaporated Amorphous Selenium Films for Large-Area Imaging and Radiation Detection Applications

Amorphous selenium is one of the best photoconductors with a wide range of applications, from its early use in the photocopy industry to its present application in X-ray imaging. Low melting point and high vapor pressure of amorphous selenium enable uniform and economical deposition of this photoconductive material up to few millimeters thick. However, there is a tradeoff between deposition rate and film uniformity. In this article, a thermal evaporation system for amorphous selenium deposition was developed. The system geometry was simulated to determine the optimized source–substrate throw distance for uniform film thickness of amorphous selenium (a-Se) on a substrate with up to 4-in diameter. Boat and crucible source configurations of equal volume (100 cc) were tested. The film was fabricated, characterized, and the uniformity and thickness were measured and compared with simulation results.

The effects of active vs. passive recovery on riding performance during a simulated motocross race

Aims: Motocross consists of two races of 30 min with a break in between. Recovery between races is paramount to performance, this study aimed to compare the effects of active and passive recovery between motocross races on riding performance. Methods: Thirteen elite and non-elite racers performed two races of 30 min with 1 h break, twice with two-week interval. Between the races active (20 min ergometer cycling at 60% of HRmax) or passive recovery (no activity) were executed in a randomized order. Lap times, heart rate during riding, blood lactate, reaction time, handgrip strength, upper back pull strength, counter movement jump height, and medicine ball throw distance were measured before and after both races. Serum creatine kinase enzyme activity and strength tests were assessed also 24 h after the races. Results: No statistically significant differences were observed in any variables between protocols. A significant drop in handgrip strength was found post-race values (p < 0.001). Post-racing creatine kinase values were above resting levels. Conclusion: These results do not support the use of active recovery in between motocross races for restoration of neuromuscular or riding performance. Motocross seems to cause some exercise-induced muscle damage; thus, some rest is required to recover homeostasis.

The Acute and Longer-Term Effects of Cold Water Immersion in Highly-Trained Volleyball Athletes During an Intense Training Block.

Background: The use of cold water immersion (CWI) as a recovery strategy following exercise has drawn mixed findings over the last few decades. The purpose of the current study was two-fold; (1) to determine the acute effects of CWI within the training week, and (2) to investigate the longer-term effects of CWI over a 16-day period.Methods: In a randomized, controlled trial, 13 national-level volleyball athletes were allocated to two groups, an experimental (CWI, n = 7) and a control group (n = 6) during a 3-week national training camp. The experimental group were exposed to a CWI protocol after the last training session of each day (12 CWI sessions). Measures of lower (countermovement jump and squat jump height) and upper-body (medicine ball throw distance) power were collected pre- and post-training camp. Perceptual and neuromuscular performance measures (countermovement jump) were obtained during the training camp.Results: No significant differences between groups were observed for any measure (p > 0.05), however, small effect sizes were observed between experimental and control groups on day two of weeks one and two. Three weeks of training resulted in a significant decrease in countermovement jump height in the control group. A moderate effect size (d = 0.65) was found for countermovement jump performance between the experimental and control groups.Conclusion: Cold water immersion seems to provide little benefit to recovery in the acute setting (within the training week), however, chronically, there was a trend toward a benefit when implementing cold water immersion in well-trained volleyball athletes over 16 days.

Novel Alumina Compounds with Niobia, Silica and Magnesia for Ballistic Armor

Compounds of alumina APC-2011 SG with niobia, silica and magnesia were sintered at 1400°C/3h, in order to evaluate their ballistic performance. The content of niobia (Nb2O5) was 4.0 to 8.0 wt.%; silica (SiO2) was 0.8 wt.%; and magnesia (MgO) at 0.15 wt.%. Sintered samples were characterized by hardness, densification and energy absorption at impact. Ballistic tests were performed by ceramic discs firmly glued to steel plates and then subjecting the target to impact using 7.62 mm projectile shot from a rifle with a throw distance of 5 m. The energy absorbed by the disintegration of the ceramic discs was estimated by the residual velocity. The fracture surfaces of the samples were observed by scanning electron microscopy. It was verified for the first that the addition of high amounts of Nb2O5 to the alumina with the presence of SiO2 and MgO increases the presence of vitreous phase in the contours of alumina grains and improved the properties of the material for use in ballistic protection.

Methods for Regulating and Monitoring Resistance Training.

Individualisation can improve resistance training prescription. This is accomplished via monitoring or autoregulating training. Autoregulation adjusts variables at an individualised pace per performance, readiness, or recovery. Many autoregulation and monitoring methods exist; therefore, this review’s objective was to examine approaches intended to optimise adaptation. Up to July 2019, PubMed, Medline, SPORTDiscus, Scopus and CINAHL were searched. Only studies on methods of athlete monitoring useful for resistance-training regulation, or autoregulated training methods were included. Eleven monitoring and regulation themes emerged across 90 studies. Some physiological, performance, and perceptual measures correlated strongly (r ≥ 0.68) with resistance training performance. Testosterone, cortisol, catecholamines, cell-free DNA, jump height, throwing distance, barbell velocity, isometric and dynamic peak force, maximal voluntary isometric contractions, and sessional, repetitions in reserve-(RIR) based, and post-set Borg-scale ratings of perceived exertion (RPE) were strongly associated with training performance, respectively. Despite strong correlations, many physiological and performance methods are logistically restrictive or limited to lab-settings, such as blood markers, electromyography or kinetic measurements. Some practical performance tests such as jump height or throw distance may be useful, low-risk stand-ins for maximal strength tests. Performance-based individualisation of load progression, flexible training configurations, and intensity and volume modifications based on velocity and RIR-based RPE scores are practical, reliable and show preliminary utility for enhancing performance.

The impact of distance and the crow hop on medial elbow stress during an interval throwing program

Objectives:Rehabilitation programs following ulnar collateral ligament reconstruction include an interval throwing program in order to gradually increase stress and prevent excessive elbow valgus loads. These programs often instruct players to use the crow hop, even at short distances, in order to reduce stress on the reconstructed ligament. The purpose of the study was to evaluate the impact of the crow hop on medial elbow stress at various distances of an interval throwing program.Methods:High school and college-aged baseball players were recruited for this study. Players threw at distances of 30, 45, 60, 90, 120, 150, and 180 feet. At each distance, participants made 3 throws while using a crow hop and 3 throws without using a crow hop with the instruction to throw on an arc. A wearable device recorded elbow torque, arm slot, arm speed, and shoulder rotation. Ball velocity was measured using radar gun.Results:A total of 20 players participated in this study. Overall elbow torque at each distance was 12.9, 20.5, 26.3, 31.9, 34.7, 36.1, and 37.1 Nm, respectively. There was no difference in elbow stress for throws with a crow hop compared to throws without a crow hop at any distance of throwing (p > 0.05). There was no difference in elbow torque for throws at 150 feet compared to 120 feet (p = 0.10) or 150 feet compared to 180 feet (p = 0.83); however, there were significant increases in elbow torque between every other throwing distance (p < 0.05).Conclusions:Medial elbow torque significantly increases at greater throwing distances of a standard interval throwing program, although the effect becomes less pronounced at longer distances as players maximize effort. The crow hop does not affect medial elbow torque at any distance of throwing.

The Effect Of Advanced Imagery Training On NCAA Shot Putter Performance

Imagery training is practiced with the goal of improving consistency of performance under pressure and to maximize skill execution. A recent model for advanced imagery training incorporates seven areas into the protocol to make it more realistic and vivid for athletes. These include Physical, Environment, Task, Timing, Learning, Emotion, and Perspective (PETTLEP). PURPOSE: To investigate the effect of a PETTLEP-based imagery script on college shot putter performance as measured by peak force (PF), release angle (RA), release height (RH), release velocity (RV), and distance thrown (DT). METHODS: Ten NCAA shot putters (n=5 females & n=5 males) participated in this study. Each participant created a personal imagery script with personal cues. Imagery was conducted five days per week for three weeks. A pre- and posttest design was used to evaluate the efficacy of PETTLEP-based imagery. Data was recorded using advanced force plate technology, biomechanical sensors, and infrared camera equipment and performance variables recorded included peak force, release angle, height of release, and release velocity. RESULTS: While all dependent variables increased in value, results yielded no significant difference in pre- to posttest for PF (Pre: 969.50 ± 185.18N; Post: 1030.16 ± 201.37N, p > 0.05), RA (Pre:33.42 ± 4.62°; Post: 36.95 ± 8.08°, p > 0.05), RH (Pre: 2.00 ± 0.11m; Post: 36.95 ± 8.08m, p > 0.05), and RV (Pre:10.89 ± 0.97m/s; Post: 11.29 ± 0.79m/s, p > 0.05). However, a significant difference was found for DT (Pre: 12.49 ± 2.14m; Post: 11.29 ± 1.67m, p < 0.05). Additionally, release velocity significantly correlated with distance thrown in both the pre- and post-tests (r= .962 and r= .834 respectively). Findings from the pretest linear regression analysis support using the model for release angle, release height, release velocity, and peak force production as a predictor of distance thrown with a level of confidence (F (4,5) = 26.29, p< 0.001; R2 of .918). CONCLUSION: While these findings are encouraging, the PETTLEP-based imagery training model employed in the present study needs to be valuated further to determine its effectiveness for consistently enhancing athletic performance.

Physical Qualities Discriminate Playing Level In Elite Youth Hockey Players

PURPOSE: The purpose of this study was to compare physical test results between playing levels and positions in youth elite hockey players. METHODS: Subjects (n=49) came from 3 distinct levels: Bantam AAA Relève (the lowest, n=16), Bantam AAA Major (the second highest, n=17), and Midget Espoir (the highest, n=16). Physical characteristics and qualities were measured. The stationary broad jump was utilized to measure lower-body power. Jump distance was measured from toes to the closest landed heel. The best of two attempts was marked as the final score. The seated medicine ball throw was utilized to measure upper-body power. Throw distance was measured from the back of the wall to where the ball first made contact with the ground. The 20-meter shuttle run test was utilized to measure aerobic capacity. VO2max was estimated from the last level completed with the Leger-Lambert formula. Results are presented as mean and standard deviation. A single factor (level or position) ANOVA and when significant a post-hoc analysis was also performed by using the least significant difference (LSD) for pairwise comparisons between groups tests results. Statistical significance was set at p<0.05. Analysis was conducted with IBM SPSS Statistics for Windows version 25. RESULTS: Hockey players of the two higher levels were significantly (p<0.05) taller (1.73 ± 0.08m and 1.74 ± 0.08m, respectively, vs 1.63 ± 0.09m), heavier (66.68 ± 8.09m and 68.60 ± 10.96m respectively vs 53.52 ± 8.73m), jumped further (2.25 ± 0.13m and 2.26 ± 0.12m respectively vs 2.01 ± 0.20m), and had greater aerobic capacity (3.87 ± 0.52 L/min and 3.84 ± 0.57 L/min respectively vs 2.96 ± 0.49 L/min) than the hockey players from the lower level. However, the higher level players, scored lower than the middle level at the seated medicine ball throw (3.74 ± 0.49m vs 4.60 ± 0.48m), even though the middle level scored higher than the lower level (4.60 ± 0.48m vs 3.49 ± 0.53m). Results also show that the goaltenders were significantly taller than the other hockey players (1.77 ± 0.10m vs 1.72 ± 0.08m for defensemen and 1.67 ± 0.10m for forwards). CONCLUSION: The stationary broad jump, the seated medicine ball throw and the 20 meters shuttle run are field tests that could be used in order to discriminate playing levels in youth elite hockey players.

Effects Of Different Warm-up Protocols On Throwing Performance

Power is essential in throwing performance. Past research indicated that high-intensity dynamic warm-up enhance the subsequent explosive performance, which is referred as post-activation potentiation (PAP). At present, there is no research explored the effect of maximal isometric contraction as warm-up on throwing performance. PURPOSE: This study aimed to investigate the impact of maximum isometric squat (MIS) and counter movement jump (CMJ) as warm-up exercises on subsequent throwing performance. METHODS: 16 healthy experienced baseball or softball players (30.5±5.98 years old) performed two warm-up protocols (MIS and CMJ) in counter-balanced order. Throwing performance was examined at 15 minutes before and 4 minutes after warm-up. Distance of underhand medicine ball throw (MBT) and baseball throwing velocity (BTV) were used to evaluate throwing performance. RESULTS: The results revealed that after performing two types of warm-up exercises, the average and best distance of MBT improved significantly (P<.05). The average and best speed of BTV increased significantly (P<.05) after warm-ups. Performance of MBT after MIS (average: + 5.35%; best: + 6.05%) showed greater improvement compare to warm-up with CMJ (+4.82%; +4.47%) (P<.05). CONCLUSION: Both MIS and CMJ as warm-up exercise are beneficial in subsequent throwing performance. MIS showed better effect than CMJ for underhand medicine ball throwing distance.

Angular Kinematics and Physical Fitness Analysis of Tall height and Short Height Javelin Throwers- A Case Study of The Islamia University of Bahawalpur, Pakistan

This study was designed to compare the physical fitness and angular position of the university level javelin throwers. Eight tall height and (n = 08) short height javelin throwers were selected for data collection. A handgrip dynamometer, stadiometer, and weight balance were used for the measurements of physical fitness. Two video cameras a Kinovea software was utilized for video analysis of the Javelin throws. The selected variables were stature, body mass, standing broad jump, maximum bench press handgrip strength, the javelin throw distance. The angle of knee joint, elbow joints, and stride length was selected variables while performing the javelin throw. An independent t-test was applied to find mean difference among tall and short height javelin thrower. The result showed the distance of javelin throw, handgrip strength, maximum bench press, vertical jump, and standing broad jump of tall height throwers were significantly higher than short height javelin throwers. On the other hand, the tall height throwers were also significantly higher in extension of right elbow, right knee, and stride length than the short height at the time of the javelin release from hand. It was concluded the longer arms, body mass, and angular kinematics of javelin throwers are associated with the better performance. It is suggested the physical fitness would be include in the selection of javelin throw and angular movement of the right knee and elbow focused on training of javelin thrower.

PERFORMANCE OF JAVELIN THROW AMONG BACHELOR OF EDUCATION STUDENTS

The javelin throw sport is one of the activities to be taught to Bachelor of Education (Science Education) students in the Faculty of Education, University of Malaya. Purpose: The purpose of this research was to identify the performance of javelin throw among Bachelor of Education (Science Education) students. Method: This research used the one-short case study design. The sample involved was 48 people (male = 12; female = 36). Before taking the javelin throw test, all students had undergone javelin throw exercises once a week. Javelin throw practices were conducted for 4 weeks only. On Week 5, male and female students took the javelin throw test. Result: For male students, there were 10.42% who achieved Very Low javelin throw distance score, 8.3% achieved Low javelin throw distance score, 2.08% achieved Quite High javelin throw distance score, and 4.1% achieved Very High javelin throw distance score. Whereas for female students, 29.1% achieved Very Low javelin throw distance score, 37.5% achieved Low javelin throw distance score, 8.33% achieved Quite High javelin throw distance score, and 6.25% achieved Very High javelin throw distance score. In overall, out of 48 students, only 8.33% achieved Quite High javelin throw distance score and 6.25% achieved Very High javelin throw distance score. The results of this study showed that the percentage of students with Low javelin throw distance score is higher than the percentage of students with High javelin throw distance score. Conclusions: The results of the study showed that the performance of javelin throw among Bachelor of Education (Science Education) students needs to be enhanced by increasing the number of training sessions per week. Besides, the use of more effective javelin throw technique should be emphasized. Article visualizations:

Relationship between Anthropometrical and Physiological Parameters with Jumping and Throwing Distance of Elite Girls

Background: The relationship between anthropometrical and physiological parameters with jumping and throwing distance is important. We aimed to investigate the relationship between anthropometrical and physiological parameters with jumping and throwing distance of young elite female jumpers and throwers for talent identification and performance predicting. Materials and Methods: In this cross sectional study, subjects were selected from 122 elite girl runners, 14-16 years old, who participated in the 2019 national championship selection of the country in Ardabil, Iran. All anthropometrical and physiological parameters were measured with appropriate and reliable tools. Limbs’ circumference, trunk flexibility and dynamic balance were measured using a China rubber band meter. Limbs’ length was measured with China VERINER caliper. Subcutaneous fat and hands and legs strength were measured with Iran Pouya Caliper (Reliability 99.32% and validity 99.8 %),and the dynamometer (the Grip Dynamometr-Blue model (0-130 Kg), American model), respectively. Static balance was measured with timer (KhosRo1 / 100SECSW50). Pearson correlation coefficient was used to examine the relationships between variables. Results: There was a significant negative relationship between hand action and reaction time (r=-0.545, P=0.009) with high jump distance (n=22). There was a significant negative relationship between palm width (r=-0.011, P=0.002) and hand action and reaction time (r=-0.458, P=0.028) with javelin throw distance (n=23). In contrast, there was no significant relationship between anthropometrical and physiological parameters with triple jump distance, weight throw, and discus throw. Conclusion: Based on the results, there was a significant negative relationship between hand action and reaction time with high jump distance, between palm width and hand action and reaction time with javelin throw distance.