Endocrine Parameters in Amenorrheic and Eumenorrheic Adolescent Female Runners

Baer, Janine T.

doi:10.1055/s-2007-1021162

Cited by 13 publications

(8 citation statements)

References 14 publications

(20 reference statements)

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“…Similar findings were reported by Kaiserauer et al (1989) although the intake of eumenorrhoeic sedentary controls was very similar to that of the amenorrhoeic women. Baer (1993) also found lower intakes (P < 0.05) in amenorrhoeic runners compared to both eumenorrhoeic runners and controls (1627 (SD 7 9 , 1944 ( s~4 5 ) , 1950 (SD 56) kcal d-l respectively). And in adolescent dancers, Hergenroeder et al (1991) estimated intakes of 1405 and 11 16 kcal d-' (P = 0-03) in eumenorrhoeic and amenorrhoeic subjects respectively using a 24-h recall and food frequency form.…”

Section: The Relationship Between Amenorrhoea a N D Low Energy Intakementioning

confidence: 67%

“…9 ) v. 26.0 (SD 1.3) kcal kg-l daily). Baer (1993) also reported almost identical intakes in eumenorrhoeic runners and sedentary controls (1944 (SD 75) v. 1950 (SD 56) kcal d-').…”

Section: Sports In Which Low Weight May Improve Performancementioning

confidence: 69%

“…Table 4. Energy intake of female athletes estimated from l-day to 7-day dietary recall and records ( 1989Nelson et al 1986Deuster et al 1986Myerson et al 1991Drinkwater et al 1984Marcus et al 1985Snead et al 1992Wilmore et al 1992Watkin et al 1991Baer, 1993Hergenroeder er al. 1991 M e a n k s~.…”

Section: Sports In Which the Athlete Competes In A Weight Categorymentioning

confidence: 99%

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Nutrition, Physical Activity, and Bone Health in Women

Lewis¹,

Modlesky²

1998

International Journal of Sport Nutrition

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Calcium and vitamin D can significantly impact bone mineral and fracture risk in women. Unfortunately, calcium intakes in women are low and many elderly have poor vitamin D status. Supplementation with calcium (~1000 mg) can reduce bone loss in premenopausal and late postmenopausal women, especially at sites that have a high cortical bone composition. Vitamin D supplementation slows bone loss and reduces fracture rates in late postmenopausal women. While an excess of nutrients such as sodium and protein potentially affect bone mineral through increased calcium excretion, phytoestrogens in soy foods may attenuate bone loss ihrough eslrogenlike activity. Weight-bearing physical activity may reduce the risk of osteoporosis in women by augmenting bone mineral during the early aduli years and reducing the loss of bone following menopause. High-load activities, such as resistance training, appear to provide the best stimulus for enhancing bone mineral; however, repetitive activities, such as walking, may have a positive impact on bone mineral when performed at higher intensities. Irrespective of changes in bone mineral, physical activities that improve muscular strength, endurance, and balance may reduce fracture risk by reducing the risk of falling. The combined effect of physical activity and calcium supplementation on bone mineral needs further investigation.

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Section: The Relationship Between Amenorrhoea a N D Low Energy Intakementioning

confidence: 67%

“…9 ) v. 26.0 (SD 1.3) kcal kg-l daily). Baer (1993) also reported almost identical intakes in eumenorrhoeic runners and sedentary controls (1944 (SD 75) v. 1950 (SD 56) kcal d-').…”

Section: Sports In Which Low Weight May Improve Performancementioning

confidence: 69%

See 1 more Smart Citation

Nutrition, Physical Activity, and Bone Health in Women

Lewis¹,

Modlesky²

1998

International Journal of Sport Nutrition

View full text Add to dashboard Cite

show abstract

“…9 ) v. 26.0 (SD 1.3) kcal kg-l daily). Baer (1993) also reported almost identical intakes in eumenorrhoeic runners and sedentary controls (1944 …”

Section: Sports In Which Low Weight May Improve Performancementioning

confidence: 89%

“…Although many are able to do this over several months, others use starvation diet methods or resort to illicit practices such as purgation or the use of diuretics (Walberg & Johnston, 1991). Kaiserauer et al 1989Nelson et al 1986Deuster et al 1986Myerson et al 1991Drinkwater et al 1984Marcus et al 1985Snead et al 1992Wilmore et al 1992Watkin et al 1991Baer, 1993Hergenroeder er al. 1991 M e a n k s~.…”

Section: Sports In Which the Athlete Competes In A Weight Categorymentioning

confidence: 99%

Nutrition, Physical Activity and Bone Health in Women

Wilson

1994

Nutr. Res. Rev.

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Retired elite female ballet dancers and nonathletic controls have similar bone mineral density at weightbearing sites

Khan

Green

Saul

et al. 1996

Journal of Bone and Mineral Research

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Elite female ballet dancers exhibit several risk factors for osteoporosis during their performing years. To study the long-term effect of this lifestyle, we compared the bone mineral density (BMD) of 101 retired elite female ballet dancers (mean age 51 years, SD = 14 years) and 101 normal controls, derived from a twin study, matched hierarchically for age, height, weight, and menopausal status. The dancers, who had been retired for a mean of 25.6 years (range 1-53 years) reported a greater prevalence of previous menstrual disturbance, greater lifetime alcohol intake and smoking, and a lower dietary milk intake in adolescence than controls (all p < 0.05). However, current exercise in the dancers was twice that of the controls (p < 0.01). The BMD of retired dancers did not differ from that of the controls at weightbearing sites. The mean +/- SE difference in BMD (dancers minus controls) was 0.009 +/- 0.013 at the total body, -0.009 +/- 0.018 at the total hip, 0.005 +/- 0.017 at the femoral neck, 0.014 +/- 0.018 at the femoral trochanter, 0.036 +/- 0.022 at the femoral intertrochanter and -0.017 +/- 0.021 at the lumbar spine. Retired dancers had lower mean (+/- SE) BMD at the nonweightbearing sites: ultradistal radius (-0.029 +/- 0.008) (p < 0.01) and at the midthird radius (-0.019 +/- 0.011) (p < 0.05). There was no difference in the proportion in each of the World Health Organization (WHO) categories of osteopenia (t score -1.0 to -2.5) and osteoporosis (t score < -2.5) at any of the measured sites. Regression analysis revealed that menstrual disturbance was negatively associated with BMD at the lumbar spine and the ultradistal radial sites, but not at the weightbearing femoral sites. This sample of retired elite ballet dancers who had multiple historical risk factors does not appear to have an increased risk for future hip or vertebral fracture based on WHO standards.

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Endocrine Parameters in Amenorrheic and Eumenorrheic Adolescent Female Runners

Cited by 13 publications

References 14 publications

Nutrition, Physical Activity, and Bone Health in Women

Nutrition, Physical Activity, and Bone Health in Women

Nutrition, Physical Activity and Bone Health in Women

Retired elite female ballet dancers and nonathletic controls have similar bone mineral density at weightbearing sites

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