Browsing by Author "Lieberman, Daniel"
Now showing items 1-20 of 67
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Aerobic Capacity, Activity Levels and Daily Energy Expenditure in Male and Female Adolescents of the Kenyan Nandi Sub-Group
Gibson, Alexander R.; Ojiambo, Robert; Konstabel, Kenn; Lieberman, Daniel E.; Reilly, John J.; Speakman, John R.; Pitsiladis, Yannis P. (Public Library of Science, 2013)The relative importance of genetic and socio-cultural influences contributing to the success of east Africans in endurance athletics remains unknown in part because the pre-training phenotype of this population remains ... -
The Aging of Wolff’s “Law”: Ontogeny and Responses to Mechanical Loading in Cortical Bone
Pearson, Osbjorn M.; Lieberman, Daniel Eric (Wiley-Blackwell, 2004)The premise that bones grow and remodel throughout life to adapt to their mechanical environment is often called Wolff’s law. Wolff’s law, however, is not always true, and in fact comprises a variety of different processes ... -
An Anatomical and Biomechanical Study of the Human Iliotibial Band's Role in Elastic Energy Storage
Eng, Carolyn Margaret (2014-06-06)The iliotibial band (ITB) is a complex structure that is unique to humans among apes and is derived from the fascia lata (FL) of the thigh. Although the ITB evolved in the hominin lineage, it is unclear whether it evolved ... -
The Biomechanics and Evolution of High-Speed Throwing
Roach, Neil (2012-10-31)Throwing with power and accuracy is a uniquely human behavior and a potentially important mode of early hunting. Chimpanzees, our closest living relatives, do occasionally throw, although with much less velocity. At some ... -
The biomechanics and evolution of impact resistance in human walking and running
Addison, Brian (2016-01-12)How do humans generate and resist repetitive impact forces beneath the heel during walking and heel strike running? Due to the evolution of long day ranges and larger body sizes in the hominin lineage modern human ... -
The brachymorph mouse and human evolution
Brown, Jevon J. Y.; Ford-Hutchinson, A.; Jirik, Frank R.; Lieberman, Daniel; Hallgrimsson, Benedikt (John Wiley & Sons, 2005)The degree to which evolutionary change in the cranial base was an integrative influence on other aspects of craniofacial evolution in hominids is a subject of much debate. Using a mouse model, we test the hypothesis that ... -
The capacity of the human iliotibial band to store elastic energy during running
Eng, Carolyn Margaret; Arnold, Allison; Lieberman, Daniel E.; Biewener, Andrew Austin (Elsevier BV, 2015)The human iliotibial band (ITB) is a poorly understood fascial structure that may contribute to energy savings during locomotion. This study evaluated the capacity of the ITB to store and release elastic energy during ... -
Comparing Neanderthal and Modern Human Long Bone Loading History from Cross-Sectional Geometry
Lieberman, Daniel; Polk, John D.; Demes, Brigitte (John Wiley & Sons, 2003)We evaluate here efforts to compare archaic and modern human limb loading from long bone cross sectional. Recent studies find that cross sectional properties (I, J, Z) calculated from second moments of area (SMA) are similar ... -
Complex Interactions Between Estrogen, Strain, and Exercise-Induced Periosteal Bone Growth
Devlin, Maureen; Lieberman, Daniel (John Wiley & Sons, 2007)Understanding the relationship between bone strain and bone growth is critical for interpreting variations in skeletal robusticity. Recently we presented a model for interactions between estrogen, strain, and periosteal ... -
A constitutive description of the anisotropic response of the fascia lata
Pancheri, F.Q.; Eng, C.M.; Lieberman, Daniel E.; Biewener, Andrew Austin; Dorfmann, L. (Elsevier BV, 2014)In this paper we propose a constitutive model to analyze in-plane extension of goat fascia lata. We first perform a histological analysis of the fascia that shows a well-organized bi-layered arrangement of undulated collagen ... -
Control and Function of Arm Swing in Human Walking and Running
Pontzer, Herman; Holloway, John H. III; Raichlen, David A.; Lieberman, Daniel Eric (The Company of Biologists, 2009)We investigated the control and function of arm swing in human walking and running to test the hypothesis that the arms act as passive mass dampers powered by movement of the lower body, rather than being actively driven ... -
Control of Jaw Movements in Two Species of Macropodines (Macropus eugenii and Macropus rufus)
Crompton, Alfred W.; Barnet, J.; Lieberman, Daniel Eric; Owerkowicz, T.; Skinner, J.; Baudinette, R. V. (Elsevier, 2007)The masticatory motor patterns of three tammar wallabies and two red kangaroos were determined by analyzing the pattern of electromyographic (EMG) activity of the jaw adductors and correlating it with lower jaw movements, ... -
The Development of Sex Differences in Digital Formula from Infancy in the Fels Longitudinal Study
McIntyre, Matthew H.; Ellison, Peter T.; Lieberman, Daniel Eric; Demerath, Ellen; Towne, Bradford (Royal Society, The, 2005)Relative finger lengths, especially the second-to-fourth finger length ratio, have been proposed as useful markers for prenatal testosterone action. This claim partly depends on an association of relative finger lengths ... -
Directional Differences in the Biaxial Material Properties of Fascia Lata and the Implications for Fascia Function
Eng, Carolyn M.; Pancheri, Francesco Q.; Lieberman, Daniel E.; Biewener, Andrew Austin; Dorfmann, Luis (Springer Science + Business Media, 2014)Fascia is a highly organized collagenous tissue that is ubiquitous in the body, but whose function is not well understood. Because fascia has a sheet-like structure attaching to muscles and bones at multiple sites, it is ... -
The effect of a "bent-knee" gait on trabecular orientation: an experiment test of Wolff's Law
Pontzer, Herman; Lieberman, Daniel; Momin, E.N.; Devlin, Maureen J.; Polk, John D.; Hallgrimsson, Benedikt; Cooper, David M.L. (John Wiley & Sons, 2005)While recent attempts have been made to link trabecular orientation to gait and posture in extinct hominids, there have been few controlled experiments to test the hypothesis that there is a predictable functional relationship ... -
The Effects of Food Processing on Masticatory Performance and Its Implications for Hominid Cranio-dental Evolution
Duncan, Katherine; Lieberman, Daniel (John Wiley & Sons, 2007)A steady decrease in relative dental and facial size occurred during the evolution of the genus Homo. It is often hypothesized that this reduction was made possible by, or was an adaptation for chewing food that was cooked ... -
Elastic energy storage in the shoulder and the evolution of high-speed throwing in Homo
Roach, Neil T.; Venkadesan, Madhusudhan; Rainbow, Michael J.; Lieberman, Daniel E. (2013)Although some primates, including chimpanzees, throw objects occasionally1,2, only humans regularly throw projectiles with high speed and great accuracy. Darwin noted that humans’ unique throwing abilities, made possible ... -
The Epigenetic Funnel and the Cranial Base: How Cranial Bone Growth Helps Integrate Interactions between the Face and the Brain to Constrain Overall Skull Shape
Lieberman, Daniel; Hallgrimsson, Benedikt; Liu, W. (John Wiley & Sons, 2007)Understanding the developmental and genetic bases for evolutionarily important variations in complex phenotypes such as the skull is a challenge because of the complexity of the factors involved. We hypothesize that even ... -
Epigenetic Interactions and the Structure of Phenotypic Variation in the Cranium
Hallgrımsson, B.; Lieberman, Daniel Eric; Liu, W.; Ford-Hutchinson, A.F.; Jirik, F.R. (Blackwell Publishing, 2007)Understanding the developmental and genetic basis for evolutionarily significant morphological variation in complex phenotypes such as themammalian skull is a challenge because of the sheer complexity of the factors ... -
Establishing Contexts of Encounters: Radiocarbon Dating of Archaeological Assemblages With Implications for Neanderthal-Modern Human Interactions
Alex, Bridget Annelia (2016-05-10)This dissertation seeks to reconstruct the distribution of Neanderthals and modern humans in time and geographic space in order to better understand the nature of interactions between the groups. Because human fossils from ...