Bone mineral content and bone mineral density in female swimmers during the time of peak bone mass attainment

2011 ◽  
Vol 28 (1) ◽  
pp. 69-74 ◽  
Author(s):  
B Długołęcka ◽  
J Czeczelewski ◽  
B Raczyńska
Keyword(s):  
Bone Mineral Density ◽  
Bone Mass ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Peak Bone Mass ◽  
Mineral Content ◽  
Mineral Density

Effects of tower climbing exercise on bone mass, strength, and turnover in orchidectomized growing rats

2002 ◽  
Vol 93 (3) ◽  
pp. 1152-1158 ◽  
Author(s):  
Takuya Notomi ◽  
Yuichi Okazaki ◽  
Nobukazu Okimoto ◽  
Yuri Tanaka ◽  
Toshitaka Nakamura ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Formation ◽  
Bone Mass ◽  
Bone Mineral Content ◽  
Trabecular Bone ◽  
Bone Mineral ◽  
Mineral Content ◽  
Lumbar Vertebrae ◽  
Mineral Density ◽  
Sedentary Group

To determine the effects of a tower climbing exercise on mass, strength, and local turnover of bone, 70 9-wk-old Sprague-Dawley rats were assigned to seven groups: a baseline control and three groups of sham-operated sedentary, orchidectomized (ORX)-sedentary and ORX-exercise rats. Rats voluntarily climbed a 200-cm tower to drink water from a bottle set at the top. At 4 wk, the periosteal bone formation rate (BFR), moment of inertia, bone mineral content, bone mineral density, and bending load at the midfemur were maintained in ORX-exercise rats, whereas these parameters were reduced in ORX-sedentary rats. At 8 wk, the periosteal mineral apposition rate and BFR in ORX-exercise rats were significantly higher, whereas the parameters in ORX-sedentary rats did not differ compared with sham-sedentary rats. In ORX-exercise rats, the trabecular mineralizing surface, BFR, and bone volume of the lumbar vertebrae were maintained at the same levels as those in the sham-sedentary group, whereas the osteoclast surface decreased compared with the ORX-sedentary group. However, the climbing exercise did not affect bone mineral content, bone mineral density, or the compression load of the lumbar vertebrae. These results show that, in the midfemur, the voluntary climbing exercise maintained cortical bone mass and strength by stimulating periosteal bone formation and partially prevented ORX-induced trabecular bone loss, depressing the elevation of turnover. Interestingly, in ORX rats, the climbing exercise had the opposite effect on bone formation at the periosteal femoral cortical bone, where the exercise increased the bone formation compared with vertebral trabecular bone, where the exercise decreased it.

Estrogen Receptor α Polymorphism Modifies the Association between Childhood Exercise and Bone Mass: Follow-Up Study

2007 ◽  
Vol 19 (4) ◽  
pp. 444-458 ◽  
Author(s):  
Miia Suuriniemi ◽  
Harri Suominen ◽  
Anitta Mahonen ◽  
Markku Alén ◽  
Sulin Cheng
Keyword(s):  
Physical Activity ◽  
Bone Mineral Density ◽  
Bone Mass ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Mineral Content ◽  
Areal Bone Mineral Density ◽  
Mineral Density ◽  
Follow Up Study

This follow-up study confirms our previous findings that the ER-α PvuII polymorphism (Pp) modulates the association between exercise and bone mass. The differences in bone properties of girls with consistently low physical activity (LLPA) and consistently high physical activity (HHPA) were evident only in those bearing the heterozygote ER-α genotype (Pp). In particular, areal bone mineral density of the total femur, bone mineral content and areal bone mineral density of the femoral neck, and bone mineral content and cortical thickness of the tibia shaft were significantly (p < .05) lower in the Pp girls with LLPA than in their HHPA counterparts. These findings might partly explain the genetic basis of human variation associated with exercise training.

Adults Engaged in Sports in Early Life Have Higher Bone Mass Than Their Inactive Peers

2018 ◽  
Vol 15 (7) ◽  
pp. 516-522 ◽  
Author(s):  
Alessandra Madia Mantovani ◽  
Manoel Carlos Spiguel de Lima ◽  
Luis Alberto Gobbo ◽  
Enio Ricardo Vaz Ronque ◽  
Marcelo Romanzini ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mass ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Early Life ◽  
Mineral Content ◽  
Sports Participation ◽  
Activity Level ◽  
Whole Body ◽  
Mineral Density

Purpose: To analyze the relationship between engagement in sports in early life and bone variables among adults of both sexes. Methods: The sample was composed of 225 men and women. Demographic data were collected, and dual-energy X-ray absorptiometry was used to assess bone mineral density, bone mineral content, and lean soft tissue. Sports participation in early life was assessed by an interview including childhood and adolescence. Consumption of tobacco and alcohol was also assessed by interview and the habitual physical activity level by a pedometer. Results: Inactive men had bone mineral content around 11% lower than active men in childhood or adolescence, whereas for women, this difference represented around 14%. Active men had 74% less fat mass than inactive men in early life, and the difference was 67% for women. Early sports participation explained the differences in whole-body bone mineral content (16.8%, P-value = .005) and bone mineral density (8.8%, P-value = .015), as well as bone mineral density in lower limbs (18.9%, P-value = .001) among women. Conclusion: Adults engaged in sports in early life have higher bone mass than their inactive peers, especially women.

Influence of anthropometric parameters on assessment of paediatric bone mineral density and bone mineral content

2013 ◽  
Author(s):  
N Hangartner Thomas ◽  
F Short David ◽  
Gilsanz Vicente ◽  
J Kalkwarf Heidi ◽  
M Lappe Joan ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Mineral Content ◽  
Mineral Density ◽  
Anthropometric Parameters

Effects of One-Year Adjuvant Treatment with Tamoxifen on Bone Mineral Density in Postmenopausal Breast Cancer Women

1996 ◽  
Vol 82 (1) ◽  
pp. 65-67 ◽  
Author(s):  
Sandro Barni ◽  
Paolo Lissoni ◽  
Gabriele Tancini ◽  
Antonio Ardizzoia ◽  
Marina Cazzaniga
Keyword(s):  
Breast Cancer ◽  
Bone Mineral Density ◽  
Alkaline Phosphatase ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Adjuvant Treatment ◽  
Mineral Content ◽  
Postmenopausal Breast Cancer ◽  
Mineral Density ◽  
One Year

In this study, the authors have analyzed the possible effects of one-year adjuvant treatment with tamoxifen on bone mineral density in postmenopausal breast cancer women. Bone mineral content was studied by photon absorptiometry (I-125), whereas bone balance was analyzed indirectly by serum PTH, osteocalcin, calcitonin, calcium and alkaline phosphatase levels. Bone mineral content and serum bone-related substances were measured before starting treatment and after one year. Results were analyzed using Student's t test for paired data. No difference was found between the two measurements for bone mineral content, PTH, calcitonin, calcium and alkaline phosphatase levels. Measurements at entry and after one year of treatment showed a statistically significant difference ( P < 0.001) only for osteocalcin. In accordance with other authors, we can conclude that treatment with tamoxifen does not cause an increase in menopausal bone resorption. The finding that osteocalcin levels decreased after one year of therapy with tamoxifen is interesting, but further studies are necessary to clarify the role of such levels in predicting a turnover of bone balance towards osteoblastic activity.

Scuba diving does not affect bone mineral density or bone mineral content

2011 ◽  
Vol 78 (6) ◽  
pp. 616-618 ◽  
Author(s):  
Katarzyna Wesolowska ◽  
Bozena Czarkowska-Paczek ◽  
Jerzy Przedlacki ◽  
Jacek Przybylski
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Mineral Content ◽  
Scuba Diving ◽  
Mineral Density

Higher bone mineral density and bone mineral content in endemic fluorosis: Human study

Bone ◽  
2006 ◽  
Vol 38 (3) ◽  
pp. 13 ◽  
Author(s):  
Arjun L. Khandare ◽  
G. Shanker Rao ◽  
N. Balakrishna
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral Content ◽  
Bone Mineral ◽  
Mineral Content ◽  
Human Study ◽  
Endemic Fluorosis ◽  
Mineral Density
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