Arm Length Research Articles

Analysis of Eye Coordination, Arm Power and VO2max in Archery Athletes in Terms of Gender

Archery is a sport that prioritizes endurance, strength, accuracy, coordination, flexibility and balance to form archery techniques. These factors must all be supported by training, excellent and long-lasting physical condition. Therefore, every archery athlete must have excellent physical condition when facing a competition or championship. In performance sports, a person or athlete needs good physical condition in addition to technical ability. The physical training provided must be in accordance with the characteristics of the number being developed and in accordance with the physical condition of the swimming athlete himself. Strength is an important basic element in supporting movement skills. Strength is required in all sports for all activities that depend on strength. The strength that works more in archery is muscle strength. Muscle strength refers to a muscle group that is capable of carrying out long contractions. Arm muscle strength is the ability of a muscle or group of muscles to contract dynamically or statically by pulling a weight for a relatively long time, to provide encouragement to create consistency of movement from the beginning to the end of archery. Therefore, the strength of the arm muscles and the physical condition of the archer are very important to achieve optimal results. Through this research, researchers are interested in conducting research with the title analysis of hand eye coordination, arm power and vo2max of archery athletes in terms of gender. After the results of the physical condition analysis are obtained, the researchers hope that archery coaches and athletes can further optimize competition preparation and achieve the best performance. The method in this research program is quantitative descriptive. With physical condition test instruments for archery athletes. This study aims to determine the results of the analysis of hand eye coordination, arm power and vo2max of archery athletes in terms of gender. The population in this study was the KONI archery athletes from Bantul Regency, totaling 24 athletes. Based on the research results, it can be concluded that arm length, eye-hand coordination and VO2max of KONI archery athletes in Bantul Regency are in the medium category.

Scalable integrated two-dimensional Fourier-transform spectrometry

Integrated spectrometers offer the advantages of small sizes and high portability, enabling new applications in industrial development and scientific research. Integrated Fourier-transform spectrometers (FTS) have the potential to realize a high signal-to-noise ratio but typically have a trade-off between the resolution and bandwidth. Here, we propose and demonstrate the concept of the two-dimensional FTS (2D-FTS) to circumvent the trade-off and improve scalability. The core idea is to utilize 2D Fourier transform instead of 1D Fourier transform to rebuild spectra. By combining a tunable FTS and a spatial heterodyne spectrometer, the interferogram becomes a 2D pattern with variations of heating power and arm lengths. All wavelengths are mapped to a cluster of spots in the 2D Fourier map beyond the free-spectral-range limit. At the Rayleigh criterion, the demonstrated resolution is 250 pm over a 200-nm bandwidth. The resolution can be enhanced to 125 pm using the computational method.

The Health Services Safety Investigations Body (HSSIB) and safety management systems: An integrated approach to managing safety in healthcare

The Health Services Safety Investigations Body (HSSIB) was established by the Health and Care Act 2022 as a new non-departmental arm's length body, replacing the former Healthcare Safety Investigation Branch. HSSIB exists to help reduce patient harm by understanding the complex interactions that exist within healthcare that may lead to patient safety events occurring. In other safety critical industries, a safety management system (SMS) approach is used to help enable proactive assessments of risks, specification of how risks should be managed, and set clear lines of accountability and responsibility in addressing risks. HSSIB has begun to explore how an SMS may operate in healthcare to help better equip the system to identify, respond, and proactively identify emerging and recurring concerns that may impact on the safety of patients.

Estimation of Stature among Healthcare Workers using Arm Span, Biacromial Breadth, and Forearm Length Dimensions: A Cross-sectional Study

Introduction: Stature is one of the most commonly used anthropometric dimensions for identification purposes in forensic investigations and for assessing the development and growth of individuals. It is well-known that various anatomical anthropometric parameters can accurately estimate stature. Aim: To estimate stature among healthcare workers in Himachal Pradesh using linear regression equations based on percutaneous anthropometric parameters of the upper limbs and trunk. Materials and Methods: This cross-sectional study was conducted on healthcare workers at Dr. Rajendra Prasad Government Medical College, Kangra, Tanda, Himachal Pradesh for a one year (September 2021-August 2022) duration. The study included 360 healthy healthcare workers from the Himachal Pradesh population, 180 females and 180 males, aged 21 years and above. Stature, arm span, Biacromial Breadth (BAB), and forearm length dimensions were measured for each subject. Statistical analysis was done using Microsoft Excel and Epi-Info version 7.1 software. The Pearson Correlation Coefficient was used to determine the correlation between stature and different anatomical anthropometric parameters. Linear regression equations were developed to estimate stature, with significance set at p-value ≤0.001. Results: The mean age of the study population was 41.33±28.91 years. The descriptive anthropometric parameters measured in the study were as follows: stature 162.4±6.85 and 149.4±7.15, arm span 165.67±7.5 and 150.31±8.33, right forearm length 26.68±1.33 and 24.36±1.59, left forearm length 26.47±1.30 and 24.30±1.55, BAB 34.11±2.16 and 31.74±2.32, respectively for males and females. Conclusion: The regression equations derived from this study can be valuable for estimating stature in situations where accurate stature measurements are not feasible.

In-situ ergonomics assessment of industrial manual tasks through AR-headset integrated sensor-systems

This paper presents an approach that is based on the use of sensors integrated into Augmented Reality (AR) headsets to acquire data for in-situ ergonomics assessment of industrial tasks. In the context of human factors evaluation, it is typically required to collect data related to anthropometric characteristics of the operators e.g. height, length of arms, width of shoulders etc., as well as data related to the execution of manufacturing tasks including working postures, task repetition, task duration, and so forth. To this end, it is needed to develop a plug and play system to collect ergonomics data from the field. The proposed approach relies on head-mounted AR devices and their integrated RGB and Depth sensors, image and point cloud processing, and skeleton tracking techniques to calculate the required data, which are later visualized in a user-friendly interface. The proposed approach was tested in a case study where the objective was to identify the proper mechanical adjustments of an exoskeleton on the spot for comfortable fitting for each operator. Five operators participated in the testing that was held under varying lighting conditions. The solution showcased improved efficiency in decision-making compared to the commonplace procedures for skeleton fitting, faster setup time compared to typical camera-based approaches, and satisfactory performance.

Tyranny of the Personal Network: The Limits of Arm's Length Fundraising in Venture Capital

Tyranny of the Personal Network: The Limits of Arm's Length Fundraising in Venture Capital

Pathways for Diagnosing and Treating CKD-Associated Pruritus: A Narrative Review.

Chronic kidney disease (CKD)-associated pruritus is a common, persistent, and distressing itch experienced by patients across the CKD spectrum. Although the disorder is associated with adverse outcomes and poor health-related quality of life, it remains underdiagnosed and undertreated. The purpose of this narrative review is to offer health care providers guidance on how to effectively identify, assess, and treat patients with CKD-associated pruritus, with the goal of reducing symptom burden and improving patient-important outcomes, such as quality of life (QoL). A panel of nephrologists and researchers from across Canada and the United States was assembled to develop this narrative review based on the best available data, current treatment guidelines, and their clinical experiences. A panel of nephrologists who actively care for patients with pruritus receiving dialysis from across Canada was assembled. Two researchers from the United States were also included based on their expertise in the diagnosis and management of CKD-associated pruritus. Throughout Spring 2023, the panel met to discuss key topics in the identification, assessment, and management of CKD-associated pruritus. Panel members subsequently developed summaries of the pertinent information based on the best available data, current treatment guidelines, and added information on their own clinical experiences. In all cases, approval of the article was sought and achieved through discussion. This narrative review provides pragmatic guidance addressing: (1) methods for screening CKD-associated pruritus, (2) assessing severity, (3) management of CKD-associated pruritus, and (4) suggested areas for future research. The panel developed a 3-pillar framework for proactive assessment and severity scoring in CKD-aP: systematic screening for CKD-associated pruritus (pillar 1), assessment of pruritus intensity (pillar 2), and understanding the impact of CKD-associated pruritus on the patient's QoL (pillar 3). Management of CKD-associated pruritus can include ensuring optimization of dialysis adequacy, achieving mineral metabolism targets (ie, calcium, phosphate, and parathyroid hormone). However, treatment of CKD-associated pruritus usually requires additional interventions. Patients, regardless of CKD-associated pruritus severity, should be counseled on adequate skin hydration and other non-pharmacological strategies to reduce pruritus. Antihistamines should be avoided in favor of evidence-based treatments, such as difelikefalin and gabapentin. A formal systematic review (SR) of the literature was not undertaken, although published SRs were reviewed. The possibility for bias based on the experts' own clinical experiences may have occurred. Key takeaways are based on the current available evidence, of which head-to-head clinical trials are lacking. This work was funded by an arm's length grant from Otsuka Canada Pharmaceutical Inc. (the importer and distributer of difelikefalin in Canada). LiV Medical Education Agency Inc. provided logistical and editorial support.

The prevalence of Constituent Year effect in Youth Olympic Games: implications for talent identification and development in basketball

Purpose: The Relative Age Effect (RAE) and Constituent Year Effect (CYE) is increasingly recognized as a significant concern in youth sports, especially in basketball where physical traits such as height, arm span, and leg length are emphasized. This focus often eclipses the critical role of age-related variations in talent scouting processes. This study aims to explore the presence and impact of CYE in basketball, with a specific focus on the Youth Olympic Games (YOG). Methods: Utilizing statistical analysis, primarily the Chi-square test and Cramer's V, this research examines the occurrence of CYE among basketball players at the YOG. Results: The findings decisively confirm the existence of CYE in youth basketball (P= .000, χ2= 51.593, df= 2, Cramer's V= .403). Results of male (χ2 = 29.342, Cramer's V: .431) and female χ2 =23.43, Cramer's V: .383) also subsample suggest a significant skew in player selection based on birth year, with a large effect size in both cases. A notable discovery is the disproportionate number of athletes born in 2000, who are 19 times more common than those born in 2002, indicating a significant age-related skew in player selection. This indicates a strong association between birth year and player selection in the context of the YOG for both genders. Conclusions: CYE's prevalence in youth basketball could detrimentally impact athletes' development and teams' overall performance. The research emphasizes the need for a more equitable and balanced approach in athlete selection. The paper proposes practical steps to reduce CYE in basketball, such as narrowing age categories or establishing smaller, more precise age groups to ensure fairer competition and more accurate talent identification.

A132: The Impact of Baby Swimming on Motor Development of Toddlers

Purpose: Infancy and early childhood are important stages of basic motor skills formation. Baby swimming provides a unique opportunity for toddlers aged 2–3 to develop motor skills. The literature documents that baby swimming can promote physical growth in toddlers, but how it affects motor development remains unclear. Therefore, the present study aims to address this gap. Methods: Using interviews, field investigations, assessment tools, this study was conducted in two stages. Stage 1 focused on the instructional information about baby swimming courses, and Stage 2 examined the difference in body indices and motor competencies between two groups of toddlers recruited through convenient sampling. The experiment group included 28 toddlers enrolled in a baby swimming course, while 28 in the control group did not participate in any sports. Motor competencies were assessed using the Peabody Sports Development Scale, including gross motor, fine motor, and overall motor development. T test and Mann Whitney U nonparametric test were used to compare the two sets of data. Results: Stage 1 of the study found: Baby swimming courses for 2-3 years old toddlers focused on safe adaptation in water, mainly developing gross muscle movements and then fine movements. Courses were taught in small classes, with each lasting 35-40 minutes. Stage 2 findings included: (1) The experiment group had no significant different body shape but were higher in height and longer in arm span than the control group. (2) The experiment group differed from the control group in terms of overall motor development and gross motor, but not fine motor. Conclusion: In baby swimming institutions, water safety is the main learning objective for toddlers. The courses had no obvious effect on promoting physical growth development of toddlers aged 2-3. Baby swimming promoted toddlers’ gross muscle movements, especially their body control and coordination. However, it did not have significant positive effects on fine motor development in this age group.

Fizička spremnost dece uzrasta 10 godina - odnos između antropometrijskih mera i motoričkih sposobnosti

The study aimed to comprehensively investigate associations between anthropometric features and motor abilities in young school-age children. The sample included 285 students (140 boys and 145 girls, aged 10.44 ± 0.33 years). Sex differences in the anthropometric and motor variables were determined by an independent t-test, while multiple linear regression was used to examine whether anthropometric characteristics could predict motor test scores. Girls were significantly taller, with greater sitting height, leg and arm length, as well as hip width. Also, greater body mass and skinfold thickness, as well as better scores on flexibility tests were observed in girls compared to boys (t=1.384-3.290, p<0.05). Conversely, boys demonstrated better scores on tests to evaluate coordination, agility, aerobic endurance, and strength. Except for movement frequency and flexibility, all motor items showed small-to-large correlations with anthropometric measures. Skinfold thickness, body mass index, arm girth, together with leg length and wrist diameter, explained 44% of the explosive strength variance, while 32% of aerobic endurance was explained by leg girth, BMI, and skinfold thickness. These results indicate that anthropometric measures have a significant influence on several motor abilities, especially explosive strength and aerobic endurance, while the role of anthropometry on flexibility, frequency of movement, and coordination seem to be negligible.

Attosecond delay locking of large arm pump-probe system

With the development of ultrafast science and attosecond laser technology, the pump-probe system based on isolated attosecond laser pulses is a key to attosecond science, which will be used to study electronic dynamics on an attosecond time-scale. To obtain stable and reliable signals, it is necessary to ensure ultra-stable and ultra-accurate synchronization. Any timing jitter can cause signal to disperse or get buryied in noise, making it impossible to obtain the true physical mechanism. Based on the above, the delay between pump laser pulse and probe laser pulse must be controlled with an attosecond time resolution. In this work, a dual-layer system is developed to achieve high-precision synchronization locking. To ensure that both layers have the same time jitter, we design an adapter to secure the elements placed during installation. Timing jitter is obtained by shaking interference fringes through fast Fourier transformation, and can be calculated in several ms. Then error signals are fed back to the PZT stage in order to compensate for real-time optical path drift. Through such a design, a time-delay accuracy of 7.64 as to 15.53 as is realized, which is linearly related to the interferometer arm length ranging from 1 m to 5 m, with an <i>R</i><sup>2</sup> of 0.96. Moreover, the error between the experimental result of arm length of 8 m and 10 m and the result fitted with the above data is less than 3 as. These results show that using a small interferometer can achieve the fast detection of the time-delay accuracy of long-arm attosecond pump-probe detection system in large scientific instrument, which is of great significance in guiding ther applications such as in non-collinear attosecond streaking spectroscopy, time-resolved photoelectron spectroscopy, and coherent synthesis.

PH-induced morphological transition of aggregates formed by miktoarm star polymers in dilute solution: a mesoscopic simulation study.

The self-assembly of miktoarm star polymers μ-A i (B(D)) j C k in a neutral solution and the pH-responsive behaviors of vesicles and spherical micelles in an acidic solution have been investigated by DPD simulation. The results show that the self-assembled morphologies can be regulated by the lengths of pH-responsive arm B and hydrophilic arm C, leading to the formation of vesicles, discoidal micelles, and spherical micelles in a neutral solution. The dynamic evolution pathways of vesicles and spherical micelles are categorized into three stages: nucleation, coalescence, and growth. Subsequently, the pH-responsive behaviors of vesicles and spherical micelles have been explored by tuning the protonation degree of pH-responsive arm B. The vesicles evolves from nanodisks to nanosheets, then to nanoribbons, as the protonation degree increases, corresponding to a decrease in pH value, while the spherical micelles undergoes a transition into worm-like micelles, nanosheets, and nanoribbons. Notably, the electrostatic interaction leads the counterions to form a regular hexagonal pattern in nanosheets, while an alternative distribution of charged beads has been observed in nanoribbons. Furthermore, the role of the electrostatic interaction in the morphological transition has been elucidated through the analysis of the distribution of positive and negative charges, as well as the electrostatic potential for associates.

Design and analysis of light weight swing arm using generative design concept

A Swing arm is a mechanical device that connects the rear wheel of the motorcycle to its body, allowing it to pivot vertically. It holds the rear axle firmly while pivoting to absorb bumps and suspension loads induced by acceleration and braking. Swing arm can be single or double-sided and has appeared in a variety of geometries. The original version consists of a pair of parallel pipes holding the rear axle at one end and pivoting at the other. A shock absorber is mounted just before the rear axle and attached to the frame, below the seat rail. The primary concern is to design a lightweight swing arm that can replace conventional motorcycle swing arm design, which consists of tubular sheet metal structure throughout the swing arm neglecting the stress-induced at various positions along the length of the swing arm, i.e. (from pivots to axle blocks). The vehicle selected for this project is Yamaha FZ-S V2. The material chosen for the swing arm are Al 6061, Al 6061 T6, and Al 7075. This project uses an iterative design method called Generative design to design a lightweight swing arm without compromising the mechanical properties and performance of its counterpart. Analysis of the part will be carried forward using static Analysis comprising various load cases and extreme load conditions. The whole design and analysis process is carried forward using Autodesk Fusion 360. This swing arm design involved economic utilization of material as it reflects the in the analysis through induced stresses.

Optimum parameters determination of the gripping and cutting device vibration suspension

The article presents the optimum parameters determination results of the gripping and cutting device vibration suspension in the process of holding the tree in a vertical position. Two kinematic schemes of the vibration suspension were considered, and their equilibrium equations for static calculation were compiled. To determine the optimum parameters of the vibration suspension the geometric parameters of its structural elements were selected at which the torque on the drive shaft was minimum. The changes in the lengths of the rotation arm and suspension arm, the arm fixing distance to the boom were justified as variable parameters. As a result of varying the set parameters graphs of the drive shaft moment change depending on the tree weight were obtained. As a result of the study, it was determined that with an increase in the arm fixing distance to the boom, the torque on the drive increases, and with an increase in the parameters of the rotation arm and the suspension arm, on the contrary, decreases. Therefore it is recommended to increase the arm fixing distance to 201 mm, and the rotation and suspension arms, on the contrary, reduce to 200 and 86 mm, respectively. The results obtained made it possible to determine more optimum parameters of the gripping and cutting device vibration suspension, which can be used in further theoretical and practical research of the gripping and cutting device design with vertically held tree.

EFFECTIVE EFFICIENCY ANALYSIS OF ARTIFICIALLY ROUGHED SOLAR AIR HEATER BY DIAGONALLY CHAMFERED CUBOID ARRAY

The solar air heater (SAH) is a very simple and economical device, but its thermal performance is quite poor. Boosting the heat transfer between absorber plates and the airflow can improve the thermal performance of a solar air heater. Applying artificial roughness to the absorber plate is a unique method for improving the thermal performance of solar air heaters compared to other methods. In this study, diagonally chamfered cuboids were utilized as roughness elements to investigate the enhancement of the performance of a solar air heater. This roughness is achieved by attaching diagonally chamfered cuboids to the absorber surface. A thorough experimental investigation was carried out to examine how this roughness affects the performance of solar air heaters. The study considered several parameters, such as relative roughness pitch (RRP) (5 to 8), arm length of cuboid (ALC) (4 to 10 mm), and relative roughness height (RRH) (0.44 to 0.077). To ensure turbulent flow during the experiment, the Reynolds number was kept within the range of 4250 to 18,000, which is considered ideal for solar air heaters operating with a constant heat flux of 1000 W/m<sup>2</sup> on the absorber plate. An overall performance assessment of the artificially roughened solar air heater was conducted, which included analyzing the Nusselt number and friction factor for both roughened and smooth absorber surfaces operating under similar flow conditions. The maximum Nusselt number achieved was 3.68 times higher than that of the smooth absorber plate at Re = 4250, with roughness parameters RRP = 5, RRH = 0.077, and ALC = 10. The analysis also reveals a 2.48-fold improvement in the overall performance of the roughened configuration.

Kinematic Analysis of 3-PRPPS Spatial Parallel Manipulator with Circularly Guided Base for Singularity-Free Robotic Motions

Robot manipulators are classified as serial manipulators and parallel manipulators. Parallel manipulators are classified into planar and spatial parallel manipulators (SPMs). The parallel manipulators have moved and fixed platforms connected with serial chains. The parallel manipulators have many linkages, which create a singularity problem. The singular positions of SPMs have also gained substantial attention in various industrial applications due to their intrinsic advantages in precision, flexibility, and load-bearing capabilities. The 3-PRPPS SPM has three prismatic joints, one spherical joint, and one revolute joint. This work changed the fixed base with a circular guided base to avoid singularity issues. The manipulator was modeled with direct kinematic relations. The Jacobian matrix for position and orientation was derived. The workspace was taken as the common area of the three circles, whose radius was the maximum arm length. The position and orientation of the end effector were traced. In the form of the end effector traces, no singularities in the mechanism were observed. The path of the robot manipulator was observed in all the possible positions and orientations. The multi-body simulation was also conducted on the 3-PRPPS manipulator, the main findings of which are presented in this article.

Arm design of band and loop space maintainer affects its longevity: a patient-specific finite element study.

Fixed space maintainers (FSMs) are commonly utilized in pediatric dentistry to prevent space loss following premature tooth extraction. Although previous studies have examined the survival rates and causes of FSM failure, the impact of arm design on failure has not been investigated. This study aimed to investigate the tensile and compressive stresses related to FSMs with different arm designs and evaluate the effect of arm designs on FSM failure. Cone beam computed tomography images of a child who experienced premature loss of a primary mandibular left second molar tooth were retrieved from our database, then processed and simulated using the Rhinoceros software. Finite element analysis was performed to evaluate the stresses on four distinct FSM arm designs under simulated chewing forces. The results showed that the straight-arm FSM design exhibited the highest von Mises principal stress, while FSMs with curved arms and surrounding primary mandibular left first molar in the mesial area demonstrated the lowest von Mises stress accumulation. Intense stress accumulation on the distal surface of tooth 74 was observed in the test models due to the transmitted forces by the FSM. The maximum principal stresses accumulated at the base of the alveolar socket of the mesial root of tooth 36, while the minimum principal stresses were identified at the mesio-marginal area of the alveolar crest. The arm design played a crucial role in enabling the appliance to effectively withstand the stresses accumulating on the Space maintainer (SM) and orthodontic band. Bending the SM arms to match the surrounding profile with curvature increased the stress absorption capacity by increasing the arm length.

Advancing Optical Coherence Tomography through Opto-Electronic Frequency Shifting

Optical Coherence Tomography (OCT) stands out for its ability to combine the high resolution of microscopy with the penetration-depth of clinical imaging. However, in practice this is still limited to a few millimetres. Interestingly, the imaging-depth of the latest swept-source systems is not limited by their spectral width but by the analog-to-digital sampling rate. In lieu of slow reference arm length adjustments, we leverage opto-electronic frequency shifting. This allows for depth adjustments on the microsecond timescale and a modest detector bandwidth of 200MHz. The opto-electronic scheme immediately gives us access to an 8mm range, a fourfold increase over the nominal 2mm range of the source. Moreover, by circumventing the need for a mechanical reference arm, changes in the axial displacement of the sample can be compensated in real-time. This makes it attractive for imaging arbitrarily-curved surfaces. We showcase this with wide-field OCT imaging of the curved retina.

Influence of Coupled Structural Parameters of Photoconductive Antennas on the Terahertz Narrowband Detection Performance of High Sensitivity and Frequency Selection

Narrowband terahertz (THz) detection plays a key role in biomedical imaging, biological applications, and security screening. Particularly rapid resolution of material differences based on spectral fingerprints or time‐resolved observation of the materials conformational state typically requires only the measurement of spectral information at a few selected frequencies. Here, a high‐performance resonance‐based coupled photoconductive antenna (PCA) was designed, which consists of a square split‐ring resonator (SRR) and an H‐shaped antenna. The incident THz wave energy can be effectively coupled in the gap of the H‐shaped antenna, and the coupling effect base on coupled harmonic oscillator model can be effectively strengthened. By decreasing the square SRR gap width HD, the relative position parameters of d and L3 between the square SRR and H‐shaped antenna can markedly improve the resonance frequency sensitivity with inductive–capacitive resonance. With the square SRR arm length L1 = L2 = L increased, the resonance frequency markedly shifted toward a lower frequency and the resonance sensitivity increased. The results prove that the THz frequency selection detection range of the coupled PCA can be designed to 0.1∼1.0 THz. Compared with the traditional H‐shaped photoconductive detection antenna, the detection resonance peak shifted the lower frequency and the maximum THz detection sensitivity increased by approximately two orders of magnitude at 0.2528 THz. The structure of the noncontact micrometer–coupled PCA is simple and easy to fabricate and integrate. Our findings may also help to advance the use of THz technology in rapid distinguish material properties.

THE INFLUENCE OF ARM LENGTH, VO2 MAX AND CORE STABILITY ON ARROW SKILLS

The purpose of this study was to determine the relationship between arm length, VO2 Max and Core stability on archery skills. A total of 24 athletes of KOP Archery Fortius, State University of Jakarta who became the research subjects. Measurement of research results using anthropometric measurement instruments of arm length, running multistage fitness test (Balke test) , plank and shooting 3 arrows for 10 series and 2 sessions with the highest total score of 600 with a distance of 18 meters. Analysis of research data using path analysis technique. Based on the results of this study, it was explained that the seven research hypotheses were accepted. H1: There is a direct effect of arm length (X1) on archery skills (Y). H2: There is a direct effect of VO2 Max (X2) on archery skills (Y). H3: There is a direct effect of Core stability (X3) on archery skills (Y). H4: There is a direct effect of arm length (X1) on Core stability (X3). H5: There is a direct effect of VO2 Max (X2) on Core stability (X3). H6: There is a direct effect of arm length (X1) on archery skills (Y) through Core stability (X3). H7: There is a direct effect of VO2 Max (X2) on archery skills (Y) through Core stability (X3).