Featured Research

from universities, journals, and other organizations

Foot bones allow researchers to determine sex of skeletal remains

Date:
February 29, 2012
Source:
North Carolina State University
Summary:
Law enforcement officials who are tasked with identifying a body based on partial skeletal remains have a new tool at their disposal. A new paper from North Carolina State University researchers details how to determine the biological sex of skeletal remains based solely on measurements of the seven tarsal bones in the feet.

Law enforcement officials who are tasked with identifying a body based on partial skeletal remains have a new tool at their disposal. A new paper from North Carolina State University researchers details how to determine the biological sex of skeletal remains based solely on measurements of the seven tarsal bones in the feet.

"Tarsals are fairly dense bones, and can be more durable than other bones -- such as the pelvis -- that are used to determine biological sex," says Dr. Troy Case, an associate professor of anthropology at NC State and co-author of a paper describing the research. "Also, the tarsal bones are often enclosed in shoes, which further protects them from damage. That's particularly useful in a forensic context." The tarsals are the seven bones that make up the ankle, heel and rear part of the arch in a human foot.

Researchers looked at the tarsal bones of 160 men and women of modern European-American descent, taking length, breadth and height measurements for each bone, with the exception of the calcaneus. For the calcaneus, or heel bone, researchers measured only its length.

Previous studies had shown that the talus -- or ankle bone -- and calcaneus can be fairly good indicators of biological sex. However, little research had been done on the other tarsal bones, which are significantly smaller.

The researchers found that the tarsal bones of the right foot are generally more reliable indicators for determining biological sex. For example, the length of the talus on the right foot correctly determined biological sex 90 percent of the time.

However, a single measurement can be misleading. For example, a woman may be particularly tall, or a man particularly short. So the researchers looked at combinations of measurements from multiple bones, which allow them to measure the relative size of the bones to each other.

For example, researchers found that looking at the height of the talus along with the length of the third cuneiform bone -- in the center of the foot -- allowed them to determine the biological sex of a skeleton with 93.6 percent accuracy.

While the research has clear forensic science applications, it may also help researchers studying ancient populations. "We evaluated remains of modern European-Americans, so our findings are not directly applicable to ancient populations," Case says. "However, it does tell us which tarsal bones are most indicative of biological sex. So, if you have a large number of skeletons, and some of them can be sexed based on skull or pelvis measurements, you could use the information we've provided on tarsals to create equations for sexing the other skeletal remains in that group based solely on tarsal measurements."


Story Source:

The above story is based on materials provided by North Carolina State University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Sheena M. Harris, D. Troy Case. Sexual Dimorphism in the Tarsal Bones: Implications for Sex Determination. Journal of Forensic Sciences, 2012; 57 (2): 295 DOI: 10.1111/j.1556-4029.2011.02004.x

Cite This Page:

North Carolina State University. "Foot bones allow researchers to determine sex of skeletal remains." ScienceDaily. ScienceDaily, 29 February 2012. <www.sciencedaily.com/releases/2012/02/120229105126.htm>.
North Carolina State University. (2012, February 29). Foot bones allow researchers to determine sex of skeletal remains. ScienceDaily. Retrieved April 16, 2014 from www.sciencedaily.com/releases/2012/02/120229105126.htm
North Carolina State University. "Foot bones allow researchers to determine sex of skeletal remains." ScienceDaily. www.sciencedaily.com/releases/2012/02/120229105126.htm (accessed April 16, 2014).

Share This



More Health & Medicine News

Wednesday, April 16, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Outbreak Now Linked To 121 Deaths

Ebola Outbreak Now Linked To 121 Deaths

Newsy (Apr. 15, 2014) The ebola virus outbreak in West Africa is now linked to 121 deaths. Health officials fear the virus will continue to spread in urban areas. Video provided by Newsy
Powered by NewsLook.com
Cognitive Function: Is It All Downhill From Age 24?

Cognitive Function: Is It All Downhill From Age 24?

Newsy (Apr. 15, 2014) A new study out of Canada says cognitive motor performance begins deteriorating around age 24. Video provided by Newsy
Powered by NewsLook.com
How Mt. Everest Helped Scientists Research Diabetes

How Mt. Everest Helped Scientists Research Diabetes

Newsy (Apr. 15, 2014) British researchers were able to use Mount Everest's low altitudes to study insulin resistance. They hope to find ways to treat diabetes. Video provided by Newsy
Powered by NewsLook.com
Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Carpenter's Injury Leads To Hundreds Of 3-D-Printed Hands

Newsy (Apr. 14, 2014) Richard van As lost all fingers on his right hand in a woodworking accident. Now, he's used the incident to create a prosthetic to help hundreds. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins