Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Neandertal knees: power lifters in the Pleistocene?
Autore:
Trinkaus, E; Rhoads, ML;
Indirizzi:
Washington Univ, Dept Anthropol, St Louis, MO 63130 USA Washington Univ St Louis MO USA 63130 t Anthropol, St Louis, MO 63130 USA Univ Bordeaux 1, Lab Anthropol, UMR 5809, CNRS, F-33405 Talence, France Univ Bordeaux 1 Talence France F-33405 09, CNRS, F-33405 Talence, France Univ New Mexico, Dept Anthropol, Albuquerque, NM 87131 USA Univ New Mexico Albuquerque NM USA 87131 ropol, Albuquerque, NM 87131 USA
Titolo Testata:
JOURNAL OF HUMAN EVOLUTION
fascicolo: 6, volume: 37, anno: 1999,
pagine: 833 - 859
SICI:
0047-2484(199912)37:6<833:NKPLIT>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
MODERN HUMAN ORIGINS; NECK-SHAFT ANGLES; ANTERIOR DISPLACEMENT; BODY PROPORTIONS; TIBIAL TUBERCLE; JOINT; HOMO; ROBUSTICITY; PATTERNS; FEMUR;
Keywords:
human paleontology; Neandertals; Early Modern humans; postcrania; legs; biomechanics;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
68
Recensione:
Indirizzi per estratti:
Indirizzo: Trinkaus, E Washington Univ, Dept Anthropol, Campus Box 1114, St Louis, MO63130 USA Washington Univ Campus Box 1114 St Louis MO USA 63130 3130 USA
Citazione:
E. Trinkaus e M.L. Rhoads, "Neandertal knees: power lifters in the Pleistocene?", J HUM EVOL, 37(6), 1999, pp. 833-859

Abstract

It has been proposed (Trinkaus, 1983a; Miller & Gross, 1998) that the marked thickness of Neandertal patellae and/or the posterior displacement of their tibial condyles increased their relative M quadriceps femoris moment arms, thereby making their legs powerful in extension. However, it is necessary to compare these reflections of muscle moment arm length to appropriate measures of the body weight moment arm and body mass estimates, both of which are influenced by ecogeographically determined body proportions. Reassessment of tibial condylar displacement and patellar thickness, as well as patellar height, relative to an appropriate measure of the moment arm for thebaseline load on the knee (body weight), to that moment arm times estimated body mass, and to that moment arm times a skeletal reflection of body mass (femoral head diameter) rejects the hypothesis that the Neandertals had exceptionally powerful knee extension. Relative tibial condylar displacementremains above that of a modem industrial society sample, but similar to that of the Broken Hill tibia, Late Pleistocene early modern humans and a recent human nonindustrial sample. Relative patellar thickness is similar to that of early modern humans, who have relatively thick patellae compared to the late Holocene human samples. Consequently, once body proportions are taken into account, there is little difference between the Neandertals and other later Pleistocene humans in knee extensor mechanical advantage, and allof these fossil hominids are similar in the more important proximal tibialproportions to those of nonindustrial recent humans. (C) 1999 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 04:34:26