Penn State Traction Study Reveals Important Data on Artificial and Natural Sports Surfaces by PR.com

VIEWS: 1 PAGES: 3

Findings of the study contradict previous Michigan State University research on rotational traction, concludes FieldTurf Revolution produces same level of traction as natural surface tested, and highlights the importance of shoe selection. A recent study by Penn State University’s Center for Sports Surface Research, entitled "Comparison of Rotational Traction of Athletic Footwear on Varying Playing

More Info
									Penn State Traction Study Reveals Important Data on Artificial and Natural
Sports Surfaces

University Park, PA, April 11, 2013 --(PR.com)-- Findings of the study contradict previous Michigan
State University research on rotational traction, concludes FieldTurf Revolution produces same level of
traction as natural surface tested, and highlights the importance of shoe selection.

A recent study by Penn State University's Center for Sports Surface Research, entitled "Comparison of
Rotational Traction of Athletic Footwear on Varying Playing Surfaces," has shed new light on what
affects rotational traction on artificial and natural sports surfaces.

The surfaces tested in the recent Penn State study were Kentucky Bluegrass (natural), FieldTurf
Revolution (artificial), AstroTurf GameDay Grass 3D (artificial), and Sportexe Omnigrass 51 (artificial).
Each surface was tested in combination with 8 different shoe types and each shoe-surface combination
was tested using three athlete weights.

The results show that rotational traction values on all synthetic turf surfaces were either the same or only
slightly different from Kentucky Bluegrass. The FieldTurf Revolution system produced the same level of
traction as Kentucky Bluegrass, while the AstroTurf GameDay Grass 3D surface resulted in traction that
was the furthest away from the Kentucky Bluegrass value.

In the Penn State study, traction was measured by rotating the shoe in a forefoot stance with the weight
distributed onto the forefoot as required by the American Society of Testing and Materials (ASTM) for
most sports including football and soccer (ASTM F2333-04). The Pennfoot apparatus used to conduct the
testing closely compares to the ASTM method for measuring traction.

A 2009 study by Villwock et al. titled “Football Playing Surface and Shoe Design Affect Rotational
Traction” and dubbed the “Michigan State Study,” reported larger differences between synthetic and
natural turf than those observed in this study. One reason for this difference may be the manner in which
traction was tested. While a testing method simulating a theoretical “worst-case” scenario such as used by
the group of Michigan State University researchers is sometimes useful, if unrealistic, the results may not
be applicable to scenarios experienced by athletes. Villwock et al. (2009) measured traction by rotating
each shoe 90 degrees in a flat-footed stance with the weight located near the rear of the foot - a scenario
that is difficult to imagine occurring during play, and if it were to occur, injury would likely result
regardless of the type of playing surface. In fact, using the 75 Nm upper limit presumed by Hirsch and
Lewis (1965) and referenced by Villwock et al. (2009), nearly all traction values reported by Villwock et
al. (2009), including those on Kentucky bluegrass, exceeded this proposed safety limit. In the Penn State
study, traction was measured by rotating the shoe in a forefoot stance with the weight distributed onto the
forefoot as required by ASTM. This testing method likely represents a more realistic scenario than the
method used by the Michigan State researchers.

“In the development of our mechanical test equipment our researchers have strived to mimic athlete
movement and when testing try to replicate actual playing surface conditions,” said Dr. Andrew S.


                                                   Page 1/3
                                PR.com Press Release Distribution   Terms of Use
McNitt, Associate Professor of Soil Science, Pennsylvania State University. “The key to this study is that
the cleat/shoe is positioned on the surface in a forefoot only stance in an attempt to gain realistic
rotational traction data. The results we've reported clearly show that the type of shoe worn on these
surfaces is the one variable that affects traction the most. I believe these results are consistent with many
existing studies and will be borne-out in future studies.”

The differences in rotational traction among shoe types in the Penn State study was nearly four times
larger than differences measured among playing surfaces. This data suggests that shoe selection has a
greater influence on rotational traction and potentially lower extremity injury risk than any other variable
tested.

The Penn State study has been submitted for publication and is currently under peer review. A summary
of the study can be downloaded at FieldTurf.com.

About the Penn State Center for Sports Surface Research

Penn State's Center for Sports Surface Research is an intercollege program managed within the College of
Agricultural Sciences' Department of Plant Science. The center is dedicated to the improvement of all
sports surfaces. Through cooperative scientific inquiry, the center strives to improve safety and
performance on all sports surfaces.




                                                   Page 2/3
                                PR.com Press Release Distribution   Terms of Use
Contact Information:
FieldTurf
Jason Smollett
800-724-2969
Contact via Email
www.fieldturf.com


Online Version of Press Release:
You can read the online version of this press release at: http://www.pr.com/press-release/484864




                                                  Page 3/3
                               PR.com Press Release Distribution   Terms of Use

								
To top