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| Publications of Ann C. Zumwalt :recent first alphabetical combined listing:%% Journal Articles @article{fds29673, Author = {Richstmeier JT and Zumwalt AC and Carlson, EJ Epstein CJ and Reeves, RH}, Title = {Craniofacial phenotypes in segmentally trisomic mouse models for Down syndrome}, Journal = {American Journal of Medical Genetics}, Volume = {107}, Number = {4}, Pages = {317-324}, Year = {2001}, Key = {fds29673} } @article{fds44400, Author = {Zumwalt, AC}, Title = {A new method for quantifying the complexity of muscle attachment sites}, Journal = {The Anatomical Record, Part B: The New Anatomist}, Volume = {286B}, Pages = {21-28}, Year = {2005}, Month = {September}, url = {http://www3.interscience.wiley.com/cgi-bin/abstract/112093655/ABSTRACT?CRETRY=1&SRETRY=0}, Keywords = {muscle attachment sites • entheses • fractal analysis • morphological complexity}, Abstract = {Muscle attachment site morphology may have valuable use for reconstructing activity patterns in individuals from historic populations or extinct species. The skeletal locations where muscles and tendons attach are morphologically very complex, and variations in this morphology may reflect stresses experienced by these attachment sites as a result of muscular contractions. However, existing methods for assessing attachment site complexity are qualitative and subjective. This paper describes a new method for quantifying attachment site complexity in which attachment sites are scanned with a 3D laser scanner and the morphological complexities of their surfaces are quantified using fractal analysis. The method described here documents the complexity at specific transects along six limb attachment sites in adult female sheep (Ovis aries), and variations in complexity within attachment sites are explored. Overall trends indicate that most of the attachment sites examined here are more complex at their peripheries than at their centers, indicating that these sites experience more varied loads at the peripheries of the tendon attachments. Exceptions to this trend are noted and all functional implications are discussed. This method provides the first opportunity to explore variations in morphological complexity within attachment sites. Assuming a relationship between tensile strains and bony morphology exists, this method provides a new tool to explore the strain environments of muscle attachment sites.}, Key = {fds44400} } @article{fds44401, Author = {Zumwalt AC and Hamrick MW and Schmitt D}, Title = {A force platform for measuring the ground reaction forces in small animal locomotion}, Journal = {Journal of Biomechanics}, Year = {2005}, Month = {Winter}, url = {http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T82-4HSY52C-1&_coverDate=12%2F13%2F2005&_alid=350241024&_rdoc=1&_fmt=&_orig=search&_qd=1&_cdi=5074&_sort=d&view=c&_acct=C000004358&_version=1&_urlVersion=0&_userid=38557&md5=2f99d24ed489029959a8351afbaf42e2}, Keywords = {force plate • mouse • rodent • kinetic analyses}, Abstract = {The importance of kinetic force plate studies of locomotion in small animals has grown recently with the increasing use of rodent models for studies of musculoskeletal diseases. However, the force plates for use with animals much smaller than a cat are difficult to design and use. Here we present data on a commercially available small force plate that accurately collects whole-body and, in a modified form, single-limb ground reaction forces in mice. The method used here is convenient, inexpensive, and readily adaptable for use with a variety of small species.}, Key = {fds44401} } @article{fds49858, Author = {A.C. Zumwalt and Marks, L.M. and Halperin, E.C.}, Title = {Integration of Gross Anatomy into a Clinical Oncology Curriculum}, Journal = {Academic Medicine}, Year = {2006}, Abstract = {The amount of time devoted to teaching gross anatomy to medical students is declining. This topic remains critically important for some medical students, especially those seeking training in anatomy-laden specialties. We describe here a course currently being offered in the Department of Radiation Oncology in the Duke University School of Medicine which expands anatomy education into the medical school clinical years. The audience for this course consists of medical students rotating in Radiation Oncology (n=2-4 per month) and the residents (n=9) and clinical faculty (n=17) in the Department of Radiation Oncology. Anatomists and Radiation Oncology residents together present monthly case conferences and cadaver-based demonstrations about the relationships between a tumor’s anatomical location and its symptoms, patterns of spread and treatment considerations. Anonymous surveys were distributed to course participants to assess the success of the course. Survey results indicate that the participants find the course to be interesting, relevant and of high quality. This course is therefore favored by students, residents and faculty as a way to supplement gross anatomy education during training for a specialty in which anatomy knowledge is essential.}, Key = {fds49858} } @article{fds44402, Author = {Zumwalt, AC}, Title = {The effect of endurance exercise on the morphology of muscle attachment sites}, Journal = {Journal of Experimental Biology}, Volume = {209}, Pages = {444-454}, Year = {2006}, Month = {February}, Keywords = {muscle attachment sites • entheses • exercise effects • morphology}, Abstract = {The morphology of muscle attachment sites, or entheses, has long been assumed to directly reflect in vivo muscle activity. The purpose of this study is to examine whether variations in muscle activity that are within normal physiological limits are reflected in variations in external attachment site morphology. This study tests the hypothesis that increased muscle activity (magnitude, number and frequency of loading cycles) results in the hypertrophy of muscle attachment sites. The attachment sites of six limb muscles and one muscle of mastication (control) in mature female sheep were measured and compared in exercised (weighted treadmill running for one hour/day for 90 days) and sedentary control animals. Attachment site surface morphology was assessed by quantifying the size (3D surface area) and complexity (fractal dimension parallel and perpendicular to soft tissue attachment) of the surfaces. Results of this study demonstrate no effect of the exercise treatment used in this experiment on any measure of enthesis morphology. Potential explanations for the lack of exercise response include the mature age of the animals, inappropriate stimulus type for inducing morphological change, or failure to surpass a hypothetical threshold of load for inducing morphological change. However, further tests demonstrate no relationship between muscle size and either attachment site size or complexity in sedentary control animals as well. The results of this study indicate that the attachment site morphological parameters measured in this study do not reflect muscle size or activity. In spite of decades of assumption otherwise, there appears to be no direct causal relationship between muscle size or activity and attachment site morphology, and reconstructions of behavior based on these features should be viewed with caution.}, Key = {fds44402} } %% Papers Presented/Symposia/Abstracts @article{fds29675, Author = {Zumwalt, AC and Ruff, CB and Wilczak, CA}, Title = {Primate muscle insertions: What does size tell you?}, Series = {American Journal of Physical Anthropology Supplement 30}, Year = {2000}, Key = {fds29675} } @article{fds29674, Author = {Zumwalt, AC and Ruff, CB and Lieberman, DE}, Title = {The influence of exercise on muscle insertion scars in sheep}, Series = {American Journal of Physical Anthropology Supplement 32}, Year = {2001}, Key = {fds29674} } @article{fds29672, Author = {Zumwalt AC and Lieberman DE and Ruff CB}, Title = {Too good to be true? Testing the relationship between muscle function and attachment site morphology}, Series = {Society for Integrative and Comparative Biology Annual Meeting Supplement}, Year = {2003}, Key = {fds29672} } @article{fds29671, Author = {Zumwalt AC}, Title = {A new method to quantify the 3D morphology of bone surfaces, with application to muscle enthesis rugosity}, Series = {Society for Integrative and Comparative Biology Annual Meeting Supplement}, Year = {2004}, Key = {fds29671} } @article{fds29670, Author = {Zumwalt AC and Schmitt D and McCormick J and Hamrick M}, Title = {Locomotor biomechanics and muscle-bone interactions in myostatin-deficient mice}, Series = {Experimental Biology Annual Meeting Supplement}, Year = {2005}, Month = {April}, Key = {fds29670} } @article{fds44403, Author = {Zumwalt, AC}, Title = {Endurance exercise does not affect the morphology of muscle attachment sites in adult female sheep (Ovis aries)}, Series = {Experimental Biology Annual Meeting Supplement}, Year = {2005}, Month = {April}, Key = {fds44403} } @article{fds44488, Author = {A.C. Zumwalt}, Title = {Development of a New Clinical Anatomy Course: Issues, Inspirations and Ideas}, Series = {American Association of Clinical Anatomists meeting}, Year = {2005}, Month = {July}, Key = {fds44488} } @article{fds49860, Author = {A.C. Zumwalt}, Title = {Three specialized anatomy courses for advanced medical students: the impact of focused anatomy instruction}, Year = {2006}, Month = {April}, Key = {fds49860} } @article{fds49859, Author = {A.C. Zumwalt}, Title = {Beyond the first year: Focused anatomy instruction during the clinical years of medical school}, Year = {2006}, Month = {July}, Key = {fds49859} } | ||
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