Human-like external function of the foot, and fully upright gait, confirmed in the 3.66 million year old Laetoli hominin footprints by topographic statistics, experimental footprint-formation and computer simulation

Authors: Crompton, R.H., Pataky, T.C., Savage, R., D'Août, K., Bennett, M.R., Day, M.H., Bates, K., Morse, S. and Sellers, W.I.

Journal: Journal of the Royal Society Interface

Volume: 9

Issue: 69

Pages: 707-719

eISSN: 1742-5662

ISSN: 1742-5689

DOI: 10.1098/rsif.2011.0258

Abstract:

It is commonly held that the major functional features of the human foot (e.g. a functional longitudinal medial arch, lateral to medial force transfer and hallucal (big-toe) push-off) appear only in the last 2 Myr, but functional interpretations of footbones and footprints of early human ancestors (hominins) prior to 2 million years ago (Mya) remain contradictory. Pixel-wise topographical statistical analysis of Laetoli footprint morphology, compared with results from experimental studies of footprint formation; foot-pressure measurements in bipedalism of humans and non-human great apes; and computer simulation techniques, indicate that most of these functional features were already present, albeit less strongly expressed than in ourselves, in the maker of the Laetoli G-1 footprint trail, 3.66 Mya. This finding provides strong support to those previous studies which have interpreted the G-1 prints as generally modern in aspect. © 2011 The Royal Society.

Source: Scopus

Preferred by: Matthew Bennett

Human-like external function of the foot, and fully upright gait, confirmed in the 3.66 million year old Laetoli hominin footprints by topographic statistics, experimental footprint-formation and computer simulation.

Authors: Crompton, R.H., Pataky, T.C., Savage, R., D'Août, K., Bennett, M.R., Day, M.H., Bates, K., Morse, S. and Sellers, W.I.

Journal: J R Soc Interface

Volume: 9

Issue: 69

Pages: 707-719

eISSN: 1742-5662

DOI: 10.1098/rsif.2011.0258

Abstract:

It is commonly held that the major functional features of the human foot (e.g. a functional longitudinal medial arch, lateral to medial force transfer and hallucal (big-toe) push-off) appear only in the last 2 Myr, but functional interpretations of footbones and footprints of early human ancestors (hominins) prior to 2 million years ago (Mya) remain contradictory. Pixel-wise topographical statistical analysis of Laetoli footprint morphology, compared with results from experimental studies of footprint formation; foot-pressure measurements in bipedalism of humans and non-human great apes; and computer simulation techniques, indicate that most of these functional features were already present, albeit less strongly expressed than in ourselves, in the maker of the Laetoli G-1 footprint trail, 3.66 Mya. This finding provides strong support to those previous studies which have interpreted the G-1 prints as generally modern in aspect.

Source: PubMed

Human-like external function of the foot, and fully upright gait, confirmed in the 3.66 million year old Laetoli hominin footprints by topographic statistics, experimental footprint-formation and computer simulation

Authors: Crompton, R.H., Pataky, T.C., Savage, R., D'Aout, K., Bennett, M.R., Day, M.H., Bates, K., Morse, S. and Sellers, W.I.

Journal: JOURNAL OF THE ROYAL SOCIETY INTERFACE

Volume: 9

Issue: 69

Pages: 707-719

eISSN: 1742-5662

ISSN: 1742-5689

DOI: 10.1098/rsif.2011.0258

Source: Web of Science (Lite)

Human-like external function of the foot, and fully upright gait, confirmed in the 3.66 million year old Laetoli hominin footprints by topographic statistics, experimental footprint-formation and computer simulation.

Authors: Crompton, R.H., Pataky, T.C., Savage, R., D'Août, K., Bennett, M.R., Day, M.H., Bates, K., Morse, S. and Sellers, W.I.

Journal: Journal of the Royal Society, Interface

Volume: 9

Issue: 69

Pages: 707-719

eISSN: 1742-5662

ISSN: 1742-5689

DOI: 10.1098/rsif.2011.0258

Abstract:

It is commonly held that the major functional features of the human foot (e.g. a functional longitudinal medial arch, lateral to medial force transfer and hallucal (big-toe) push-off) appear only in the last 2 Myr, but functional interpretations of footbones and footprints of early human ancestors (hominins) prior to 2 million years ago (Mya) remain contradictory. Pixel-wise topographical statistical analysis of Laetoli footprint morphology, compared with results from experimental studies of footprint formation; foot-pressure measurements in bipedalism of humans and non-human great apes; and computer simulation techniques, indicate that most of these functional features were already present, albeit less strongly expressed than in ourselves, in the maker of the Laetoli G-1 footprint trail, 3.66 Mya. This finding provides strong support to those previous studies which have interpreted the G-1 prints as generally modern in aspect.

Source: Europe PubMed Central