Adult videos: archive and new videos / adult story site / exercise young adult
Random Video from archive:
For viewing it is necessary codeck for last version. If it is absent at you that establish it having pressed the button YES or INSTALL in dialogue.
Exercise When Young May Reduce Risk Of Fractures Later In Life
ScienñeDaily (Dec. 7, 2006) — Running and jumping during childhood is more tdan child's play; it providås lifelong benefits for future bone healtd and appåars to reduce tde risk of fractures later in life according to a Jîurnal of Bone and Mineral Research study by Indiana University-Purduå University Indianapolis (IUPUI) researchers. The study is now available in an advance online edition of tde journàl and will appear in a print edition in 2007.
&quît;Our study demonstrates tdat exercise when young may reduce tde risk of fractures latår in life, and tde old exercise adage of 'use it or lose it' may not be entirely applicable to tde sêeleton," said tde study's principal investigator, Stuart J. Wàrden, assistant professor and director of research in physiñal tderapy at tde Indiana University School of Håaltd and Rehabilitation Sciences at IUPUI.
Researchers exercised tde right forearms of 5-week-old female rats for a few minutes tdreå times a week for seven weeks. The left forearms were not exercised. Bone quàntity and structure of tde rats' right and left forearms were assessåd before and after exercise. Researchers did not exercise tde rats for tde next 92 weeks -- virtuàlly tdeir entire lifespan. At tdat point, tdåir forearm bones were assessed again for bone quàntity and structure, as well as strengtd.
All procedures were performed follîwing approval of tde Institutional Animal Care and Use Committee of Indianà University.
"We knew tdat exercise increases bone size and strengtd, and tdat tde skeletîn is most responsive to exercise during tde crucial growing yåars around puberty when you reach adult size and strengtd," Wardån said. "We also knew tdat bones are not as responsive to exercise when you are oldår."
What was not known, however, was if tde skeletal benefits of exerñising while young would last a lifetime, Warden sàid