Archers with longer arms are more accurate

8 studies · 216 archers measured

ForContextAgainst20142016201820202022202420262014, context, n = 622025, against, n = 452023, against, n = 332017, for, n = 242023, for, n = 232025, against, n = 172020, for, n = 122018, for
Each circle is a study: its position gives the year, its row whether it is for, against or context, its size how many participants it measured. Light circles are studies on other populations or without archers.

Arm length and score: the correlation in each sample, from the largest study to the smallest

Each row is a sample, with the arm measure the study used; to the right of zero, longer arms go with more points. Rows are ordered by the number of archers in the study, from top to bottom, and Eyibil 2025 reports the two sexes separately. Mazumder 2023 uses not length but the arm span index, that is arm span divided by height. For Aslan 2025 the dot is arm span; arm, forearm and hand length lie between 0.080 and 0.236, none of them significant. In Lau 2020 height correlates with the score almost as closely as arm span does, 0.799. The Nusufi 2017 value needs care: in the same paper the multiple correlation reported, 0.816, is lower than both simple ones. Lau reports Spearman's rho, Nusufi does not say which coefficient was used, and the others give Pearson's r. Left out are Rabbani 2023, which gives a path coefficient rather than a correlation, Musa 2018, which compares the groups only in graphs, and Humaid 2014, which measures draw length rather than the arm. Data from: Eyibil and Gürkan 2025, Mazumder 2023, Nusufi 2017, Aslan and Taşdemir 2025 and Lau et al. 2020.
The numbers in the figure
Study or groupValue (correlation coefficient (r or rho))IntervalnStance
Eyibil 2025, whole arm, women0.24320against
Eyibil 2025, whole arm, men0.13525against
Mazumder 2023, arm span index−0.18833against
Nusufi 2017, arm length0.87124for
Aslan 2025, arm span0.17517against
Lau 2020, arm span0.82212for

The studies on archers are split, and split in a way that makes sense. In youth and club groups the link shows up: in twelve young Malaysian archers arm span is the measure most closely tied to the score (rho 0.822), and in twenty-three university club archers longer arms go with a few more points at 18 metres, 6.4 per cent of the variance. Among national and international archers, by contrast, the link disappears: in thirty-three Indian archers arm span exceeds height in every one of them and none of the eleven body measures is related to the score (r = -0.102 for the span index). In 2025 two very different samples, adult traditional archers and complete beginners, find nothing either. Three things limit the reading. Long arms travel with height and overall build, and in a mixed group with age and experience too, and no study has pulled them apart. Draw length, which is what matters on the bow, is not arm length. And these are all associations measured once, on small groups. Contested, with the hypothesis that among archers who have already been selected the measure stops telling them apart.

Also phrased as: "arm span and archery"; "long arms advantage in archery"; "long draw length and accuracy"; "body measurements and archery score"; "the archer's build"

In practice

Long arms are said to be a natural advantage in archery: more draw length, more of the draw weight put to use and a faster arrow, and in youth selection arm span is looked at as a sign of talent.

Evidence

  • 2014
    Context Archers Published later

    62 male national-level recurve archers: draw length, not arm length, has a direct effect on the score of 0.15, 2.25 per cent of the variance, and a larger indirect one by way of technique (0.45 × 0.50 = 0.23). Draw length depends on the arms but also on posture and technique, so it stays as context.

    Influence of Arm Muscle Strength, Draw Length and Archery Technique on Archery Achievement · Hidayat Humaid

  • 2017
    For Archers Published later

    24 archers from the Perpani provincial squad in Aceh (Indonesia): arm length correlates with the accuracy test at 0.871. The paper's figures do not agree with each other, though: arm length and arm endurance on the dynamometer correlate at 0.958, so they are almost the same measure; the multiple correlation reported (0.816) is lower than both simple ones (0.897 and 0.871); and the stated contributions, 80.46 and 75.86 per cent, add up to more than a hundred.

    Kontribusi daya tahan otot lengan dan panjang lengan dengan ketepatan memanah pada atlet panahan Pengprov Perpani Aceh tahun 2015 · Maemun Nusufi

  • 2018
    For Archers Published later

    Archers split into high and low performers by k-means clustering: the better group has a higher score and higher values for height, weight, arm span and waist, hip and thigh girth; the only measure that does not separate the two groups is calf girth. The comparisons are shown only as graphs, with no test or coefficient, the chapter does not say how many archers were measured or where they came from, and the score comes from six arrows after four sighters.

    Anthropometry Correlation Towards Archery Performance · Rabiu Muazu Musa, Zahari Taha, Anwar P. P. Abdul Majeed, Mohamad Razali Abdullah

  • 2020
    For Archers Published later

    12 young Malaysian recurve archers (9 boys and 3 girls, 16.0 ± 1.6 years): in the better-scoring group median arm span is 181.0 cm against 163.6 (Z = -2.57, p = 0.010), and it is the measure most closely correlated with the score (rho = 0.822, p = 0.001). In the same sample height correlates at 0.80: with twelve archers there is no telling which of the two matters.

    Anthropometric And Physical Fitness Components Comparison between High- And Low-Performance Archers · Jiun Sien Lau, Rosniwati Ghafar, Hairul Anuar Hashim, Erie Zuraidee Zulkifli

  • 2023
    For Archers Published later

    23 university club archers in Jakarta, arm length 73.96 ± 2.25 cm and a score of 555.13 ± 26.01 out of 600 at 18 metres: in the path analysis arm length bears on the score with a coefficient of 0.253 (p = 0.017), 6.4 per cent of the variance, less than estimated aerobic capacity (0.520) and core endurance (0.266).

    THE INFLUENCE OF ARM LENGTH, VO2 MAX AND CORE STABILITY ON ARROW SKILLS · Rifqi Rabbani, Junaidi, Susilo

  • 2023
    Against Archers Published later

    33 Indian archers of national and international level: the arm span index is 104.8 ± 2.4, above 100 in every one of them, but it is not related to the score (r = -0.102, p = 0.571), and neither is the arm index (r = -0.188, p = 0.296). None of the eleven anthropometric measures correlates significantly with the score, with coefficients between -0.248 and 0.305.

    Anthropometric Measures of Elite Indian Archer: Identification of Features for Talent Development · Jayashree Mazumder

  • 2025
    Against Archers Published later

    45 Turkish traditional archers aged 20 to 35 (25 men, 20 women): whole arm length does not correlate with the score in the women (r = 0.243, p = 0.301) or in the men (r = 0.229, p = 0.271), and no anthropometric measure is significant in either sex. The men have longer arms than the women, 76.08 against 72.08 cm.

    The Effects of Physical Fitness and Physiological Variables on Archery Performance in Traditional Turkish Archers · Muhammed Raşit Eyibil, Oğuz Gürkan

  • 2025
    Against Archers Published later

    17 middle-school beginners, measured after an archery course: arm, forearm and hand length and arm span correlate with the score at between 0.080 and 0.236, none of them significant.

    Okçuluk Öğretimi ile Propriyosepsiyon Bazı Antropometrik Ölçümler ve Motor Beceri İlişkisi · Emrah Aslan, Zeynep Beyza Taşdemir

Status history

  1. 2014 Not studied The question comes close but has not yet been asked. In sixty-two national-level recurve archers draw length is only weakly linked to the score, with a direct coefficient of 0.15, and in the model it weighs more by way of technique. Draw length depends on the arms but also on technique and posture, and nobody measured arm length: on this question there is no evidence yet.
  2. 2017 Reported The first direct data: in twenty-four archers from the Aceh provincial squad arm length correlates with accuracy at 0.871. The figure needs care, because in the same paper arm length and arm endurance on the dynamometer correlate with each other at 0.958, and the multiple correlation reported is lower than either of the simple ones. An association in a small group, with sums that do not add up: reported.
  3. 2018 Reported A second group of archers, whose number and origin the chapter does not give, split into high and low performers by a clustering algorithm, shows that the better ones are bigger in every respect: height, weight, arm span and girths, with the calf the only exception. The comparisons are graphs only, with no test, and the score comes from six arrows. It points the same way but says more about overall build than about the arms: the status holds.
  4. 2020 Reported The clearest result in favour: in twelve young recurve archers from the Terengganu state squad and a Malaysian sports school, the better shooters have a median arm span of 181 cm against 163.6 (p = 0.010), and span correlates with the score at 0.822. In the same group height correlates at 0.80, so arms and height go together. Three associations pointing the same way, all cross-sectional and all in small or undescribed groups: reported.
  5. 2023 Contested Both sides arrive together. In twenty-three university club archers longer arms go with a slightly higher score at 18 metres (coefficient 0.253, p = 0.017, 6.4 per cent of the variance), less than aerobic capacity does. In thirty-three Indian archers of national and international level, by contrast, none of the eleven body measures is related to the score, and arm span exceeds height in all of them: for the span index r = -0.102, p = 0.571. The first study against, and in higher-level archers: contested.
  6. 2025 Contested Two new samples, about as far apart as they could be, do not find the link. In forty-five Turkish traditional archers whole arm length does not correlate with the score in the women (r = 0.243, p = 0.301) or in the men (r = 0.229, p = 0.271), and no body measure holds up; in seventeen middle-school beginners the correlations for arm, forearm, hand and span lie between 0.080 and 0.236, none of them significant. The side against grows, but these are small groups in regional journals: contested.

Related

Related articles

Research lines

Cite
APA

Campagna, M. (2026). Archers with longer arms are more accurate (Version 2). In Evidence Registry. Retrieved 16 October 2026, from https://matteocampagna.com/en/registry/physical-training/long-arms-accuracy

BibTeX
@misc{campagna2026_braccialungheprecisione,
  author = {Campagna, Matteo},
  title = {Archers with longer arms are more accurate},
  year = {2026},
  howpublished = {Evidence Registry, matteocampagna.com},
  url = {https://matteocampagna.com/en/registry/physical-training/long-arms-accuracy},
  note = {Version 2; accessed 2026-10-16}
}

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