PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Czasopismo

2012 | 71 | 3 |

Tytuł artykułu

Functional hand proportion is approximated by the Fibonacci series

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
The debatable relationship of functional human hand proportion with the Fibonacci series has remained an obscure scientific enigma short of clinical interest. The main difficulty of proving such a relationship lies in defining what should constitute true “functional” proportion. In this study, we re-evaluate this unique relationship using hand flexion creases as anatomical surrogates for the functional axes of joint rotation. Standardised desktop photocopies of palmar views of both hands in full digital extension and abduction were obtained from 100 healthy male volunteers of Chinese ethnicity. The functional axes were represented by the distal digital crease (distal interphalangeal joint, DIPJ), proximal digital crease (proximal interphalangeal joint, PIPJ), as well as the midpoint between the palmar digital and transverse palmar creases (metacarpophalangeal joint, MCPJ). The ratio of DIPJ-Fingertip:PIPJ-DIPJ:MCPJ-PIPJ (p3:p2:p1) was measured by two independent observers and represented as standard deviation about the mean, and then compared to the theoretical ratio of 1:1:2. Our results showed that, for the 2nd to 5th digits, the p2:p3 ratios were 0.97 ± 0.09, 1.10 ± 0.10, 1.04 ± 0.12, and 0.80 ± 0.08, respectively; whilst the p1:p2 ratios were 1.91 ± 0.17, 1.98 ± 0.14, 1.89 ± 0.16, and 2.09 ± 0.24, respectively. When the data were analysed for all digits, they showed a combined p3:p2:p1 ratio of 1:0.98:2.01. In conclusion, our results suggest that functional human hand proportion, as defined by flexion creases, is approximated by the Fibonacci series. (Folia Morphol 2012; 71, 3: 148–153)

Słowa kluczowe

Wydawca

-

Czasopismo

Rocznik

Tom

71

Numer

3

Opis fizyczny

p.148=153,fig.,ref.

Twórcy

autor
  • Yong Loo Lin School of Medicine, National University of Singapore, Singapore
autor
  • Department of Mathematics, Imperial College London, United Kingdom
autor
  • Department of Cardiac, Thoracic, and Vascular Surgery, National University Hospital, Singapore
autor
  • Resident, Internal Medicine, Ministry of Health Holdings, Singapore 099253, Singapore

Bibliografia

  • 1. Amoric M (1995) The golden number: applications to cranio-facial evaluation. Funct Orthod, 12: 18–21, 24–25.
  • 2. Baker F (1888) Anthropological notes on the human hand. Am Anthropologist, 1: 51–75.
  • 3. Bali RS, Chaube R (1971) On the formulation of palmar creases. Z Morphol Anthropol, 63: 121–130.
  • 4. Beevers DJ, Seedhom BB (1995) Design of a non-constrained, non-cemented, modular, metacarpophalangeal prosthesis. Proc Inst Mech Eng H, 209: 185–195.
  • 5. Berenbaum SA, Bryk KK, Nowak N, Quigley CA, Moffat S (2009) Fingers as a marker of prenatal androgen exposure. Endocrinology, 150: 5119–5124.
  • 6. Bland JM, Altman DG (1986) Statistical methods for assessing agreement between two methods of clinical measurement. Lancet, 1: 307–310.
  • 7. Buckberg GD (2002) Basic science review: the helix and the heart. J Thorac Cardiovasc Surg, 124: 863–883.
  • 8. Chan JY, Chang GH (2009) The golden ratio optimizes cardiomelic form and function. Irn J Med Hypotheses Ideas, 3: 2.
  • 9. Gibson CM, Gibson WJ, Murphy SA, Marble SJ, Mc-Cabe CH, Turakhia MP, Kirtane AJ, Karha J, Aroesty JM, Giugliano RP, Antman EM; TIMI Study Group (2003) Association of the Fibonacci Cascade with the distribution of coronary artery lesions responsible for ST-segment elevation myocardial infarction. Am J Cardiol, 92: 595–597.
  • 10. Gillam L, McDonald R, Ebling FJ, Mayhew TM (2008) Human 2D (index) and 4D (ring) finger lengths and ratios: cross-sectional data on linear growth patterns, sexual dimorphism and lateral asymmetry from 4 to 60 years of age. J Anat, 213: 325–335.
  • 11. Gupta A, Rash GS, Somia NN, Wachowiak MP, Jones J, Desoky A (1998) The motion path of the digits. J Hand Surg Am, 23A: 1038–1042.
  • 12. Hamilton R, Dunsmuir RA (2002) Radiographic assessment of the relative lengths of the bones of the fingers of the human hand. J Hand Surg Br, 27: 546–548.
  • 13. Hönekopp J, Watson S (2010) Meta-analysis of digit ratio 2D:4D shows greater sex difference in the right hand. Am J Hum Biol, 22: 619–630.
  • 14. Hutchison AL, Hutchison RL (2010) Fibonacci, Littler, and the hand: a brief review. Hand, 5: 364–368.
  • 15. Kimura S (1991) Embryologic development of flexion creases. Birth Defects Orig Artic Ser, 27: 113–129.
  • 16. Kondo T, Zákány J, Innis JW, Duboule D (1997) Of fingers, toes and penises. Nature, 390: 29.
  • 17. Kornhuber J, Erhard G, Lenz B, Kraus T, Sperling W, Bayerlein K, Biermann T, Stoessel C (2011) Low digit ratio 2D:4D in alcohol dependent patients. PLoS One, 6: e19332.
  • 18. Littler JW (1973) On the adaptability of man’s hand. The Hand, 5: 187–191.
  • 19. Manning JT, Baron-Cohen S, Wheelwright S, Sanders G (2001) The 2nd to 4th digit ratio and autism. Dev Med Child Neurol, 43: 160–164.
  • 20. Manning JT, Bundred PE (2001) The ratio of second to fourth digit length and age at first myocardial infarction in men: a link with testosterone? Br J Cardiol, 8: 720–723.
  • 21. Manning JT, Bundred PE, Newton DJ, Flanagan BF (2003) The 2nd to 4th digit ratio and variation in the androgen receptor gene. Evol Hum Behav, 24: 399–405.
  • 22. Manning JT, Henzi P, Venkatramana P, Martin S, Singh D (2003) Second to fourth digit ratio: ethnic differences and family size in English, Indian and South African populations. Ann Hum Biol, 30: 579–588.
  • 23. Medland SE, Zayats T, Glaser B, Nyholt DR, Gordon SD, Wright MJ, Montgomery GW, Campbell MJ, Henders AK, Timpson NJ, Peltonen L, Wolke D, Ring SM, Deloukas P, Martin NG, Smith GD, Evans DM (2010) A variant in LIN28B is associated with 2D:4D finger-length ratio, a putative retrospective biomarker of prenatal testosterone exposure. Am J Hum Genet, 86: 519–525.
  • 24. Nicolás Hopp R, Jorge J (2011) Right hand digit ratio (2D:4D) is associated with oral cancer. Am J Hum Biol, 23: 423–425.
  • 25. Okten A, Kalyoncu M, Yariæ N (2002) The ratio of second- and fourth-digit lengths and congenital adrenal hyperplasia due to 21-hydroxylase deficiency. Early Hum Dev, 70: 47–54.
  • 26. Park AE, Fernandez JJ, Schmedders K, Cohen MS (2003) The Fibonacci sequence: relationship to the human hand. J Hand Surg Am, 28: 157-160.
  • 27. Rahman AA, Lophatananon A, Stewart-Brown S, Harriss D, Anderson J, Parker T, Easton D, Kote-Jarai Z, Pocock R, Dearnaley D, Guy M, O’Brien L, Wilkinson RA, Hall AL, Sawyer E, Page E, Liu JF; UK Genetic Prostate Cancer Study Collaborators; British Association of Urological Surgeons’ Section of Oncology, Eeles RA, Muir K (2011) Hand pattern indicates prostate cancer risk. Br J Cancer, 104: 175–177.
  • 28. Schaumann BA, Kimura S (1991) Palmar, plantar, and digital flexion creases: morphologic and clinical considerations. Birth Defects Orig Artic Ser, 27: 229–252.
  • 29. Stevenson JC, Everson PM, Williams DC, Hipskind G, Grimes M, Mahoney ER (2007) Attention deficit/hyperactivity disorder (ADHD) symptoms and digit ratios in a college sample. Am J Hum Biol, 19: 41–50.
  • 30. Stillwell J (1989) Undergraduate texts in mathematics: mathematics and its history. Springer Verlag, New York.
  • 31. Tamai K, Ryu J, An KN, Linscheid RL, Cooney WP, Chao EY (1988) Three-dimensional geometric analysis of the metacarpophalangeal joint. J Hand Surg Am, 13: 521–529.
  • 32. Thompson DW (1917) On growth and form. 1st Ed. Cambridge University Press, Cambridge, England.
  • 33. Voracek M, Dressler SG (2009) Brief communication: Familial resemblance in digit ratio (2D:4D). Am J Phys Anthropol, 140: 376–380.
  • 34. Zhang W, Robertson J, Doherty S, Liu JJ, Maciewicz RA, Muir KR, Doherty M (2008) Index to ring finger length ratio and the risk of osteoarthritis. Arthritis Rheumatol, 58: 137–144.
  • 35. Zheng Z, Cohn MJ (2011) Developmental basis of sexually dimorphic digit ratios. Proc Natl Acad Sci USA, 108: 16289–16294.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-31127ee0-7f79-47e1-b3c8-b84ef10d62f7
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.