Comparison of Low and High-mileage Female Runners Aged 18-43 with Respect to Body Composition and Incidence of Menstrual Dysfunction PDF Download
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Author: Valerie Mildred Chelgren Rogosheske
Publisher:
ISBN:
Category :
Languages : en
Pages : 556
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Book Description
Author: Valerie Mildred Chelgren Rogosheske
Publisher:
ISBN:
Category :
Languages : en
Pages : 556
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Book Description
Author: Dianne F. Rohaus
Publisher:
ISBN:
Category : Body composition
Languages : en
Pages : 108
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Book Description
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 770
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Book Description
Author: University of Minnesota. Graduate School
Publisher:
ISBN:
Category :
Languages : en
Pages : 80
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Book Description
Author: Mary L. Sunny
Publisher:
ISBN:
Category : Body composition
Languages : en
Pages : 132
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Book Description
Author: Kerri Marcella Winters
Publisher:
ISBN:
Category :
Languages : en
Pages : 172
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Book Description
Author: Michelle Theresa Barrack
Publisher:
ISBN: 9781109661507
Category :
Languages : en
Pages :
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Book Description
If genetic and behavioral factors do not allow for normal accrual during the adolescent years, lifetime low bone mass may ensue. Observational studies target female young adult endurance runners as a population at risk of developing low bone mass however, few studies have evaluated adolescent runners. Therefore over the course of three studies, female adolescent endurance runners' bone mineral accrual patterns well as behavioral factors associated with bone turnover and bone mass change were evaluated. The first study compared cross-sectional bone mineral density (BMD), bone mineral content (BMC), and BMD Z-score values between 93 endurance runners and 90 non-endurance runner competitive adolescent athletes categorized into four age groups (13-14y, 15y, 16y, and 17-18y). Non-endurance runner athletes exhibited a normal accrual pattern, as those age 17-18y compared to 13-14y exhibited significantly higher total body and lumbar spine BMD and BMC values. However, total body, total hip, and lumbar spine BMD and BMC values were not significantly different between runners in the younger compared to older age groups. The second study was a 3-year follow-up evaluation of 40 female adolescent runners that had completed initial measures during the Fall 2004 cross-country season. Approximately 90% of runners with low bone mass at baseline had low bone mass at the follow-up. Change in BMI and lean tissue mass, age at menarche, and the total number of menses girls had between baseline and follow-up emerged as positive predictors of BMC change, while chronological age, years with primary or secondary amenorrhea, total miles run between baseline and follow-up, and baseline weight concern values were negative predictors. The third study followed 40 additional female adolescent runners over a 7-day period to evaluate dietary intake, energy expenditure, and their relationship with bone turnover. Runners with abnormal bone turnover had a significantly lower energy intake and a higher prevalence of menstrual irregularity and low bone mass than those with normal turnover. These findings indicate that female runners may represent a population at risk of accruing inadequate bone mineral during adolescence, an outcome that appears related to factors consistent with a chronic energy deficit.
Author:
Publisher:
ISBN:
Category : Reproduction
Languages : en
Pages : 876
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Book Description
Author: Murray Low
Publisher:
ISBN:
Category : Body composition
Languages : en
Pages : 298
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Book Description
Author: Catherine M. Gordon
Publisher: Springer
ISBN: 148997525X
Category : Medical
Languages : en
Pages : 187
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Book Description
This is the first book of its kind to focus solely on the female athlete triad - its origins, its recognition, and most importantly, its management. Since the symptoms themselves cover a range of medical specialties, chapters are written by experts in a number of relevant fields - sports medicine, orthopedics, endocrinology, and pediatrics - with an eye toward overall care of the young female athlete. Additionally, each chapter includes suggestions on how to educate and communicate with young athletes and their parents, as well as trainers and coaches, on how to manage the illness outside of the direct clinical setting. The female athlete triad is often seen in sports where low body weight is emphasized, such as gymnastics, figure skating, and running, though it can appear in any sport or activity. The interrelated symptoms - eating disorders, amenorrhea, and low bone mass - exist on a spectrum of severity and are serious and potentially life-threatening if not properly treated. Psychological problems, in addition to medical ones, are not uncommon. The Female Athlete Triad: A Clinical Guide discusses all of these areas for a well-rounded and in-depth approach to the phenomenon and will be a useful reference for any clinician working with female athletes across the lifespan.
