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Impaired Folliculogenesis and Meiotic Defects in Chtf18-null Female Mice
Abstract   Open access   Peer reviewed

Impaired Folliculogenesis and Meiotic Defects in Chtf18-null Female Mice

Karen Michele Berkowitz and Tanu Singh
Journal of women's health (Larchmont, N.Y. 2002), v 21(4), pp A-2-A-2
01 Apr 2012
DOI: https://doi.org/10.1089/jwh.2012.Ab01 (p2)
url
http://online.liebertpub.com/doi/pdf/10.1089/jwh.2012.Ab01View
SubmittedOpen Access (License Unspecified),  Open

Abstract

Abstracts
Background: Although the studies reported that the engagement of low-impact dance could have positive influences on cardiovascular fitness and blood lipids, the data with respect to the effect of low-impact dance on dynamic balance, torque of knee, and bone mineral density (BMD) were few. In fact, these factors are associated with the risk of fall for the elder individuals. Objectives: As a result, this study was to examine whether any difference with respect to the aforementioned variables between females who longitudinally engaged in low-impact dance and who were physically inactive existed. Methods: Twenty-six low-impact dance and ten physically in-active females comprised the dance group (DG) and the con-trol group (CG), respectively. All participants were measured for dynamic balance (the stabilometer, Model 16030, Lafayette Instrument Inc., IN), knee extension torque ( Jih sense RT-100, Taipei, Taiwan), bone mineral density (GE Bone Ultrasonometer, Madison, WI), and range of motion (ROM) of knees (goniometer, NexGen Ergonomics, Quebec, Canada). The two groups were compared using unpaired Student t-tests (SPSS 15.0). All values were expressed as means–standard deviation (SD). Results: For the balance times in a 30-second of dynamic balance test, the DG group was significantly more than the CG group (13.0–4.7 vs. 5.5–7.8 times, p<0.05). In knee extension torque, although the DG group was higher than the CG group in both legs, only a significantly difference was displayed in non-dominant leg between the two groups (57.2–22.2 vs. 40.3–16.5Newton, p<0.05). In addition, the BMD results in both legs showed significantly higher in the DG when compared with the CG (p<0.05). However, the ROMs of both knees did not differ between the two groups. Conclusions: Individuals who habitually engaged in low-impact dance demonstrated positive results in dynamic dance, knee extension torque, and BMD. These benefits may reduce the risk of fall. As a result, the studies for the effect of the intervention of low-impact on fall of middle-aged or elder individuals are warranted in the near future.

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