Examinations of bone density changes in selected knee bone ends were evaluated prospectively in a randomized group of 28 patients, aged from 41 to 65 (mean: 55.3 years), who had varus deformations of their mechanic limb axes, mean 8 degrees. The examinations were conducted during the preoperative period, 10 days, 3, 6, and 12 weeks, as well as 6 and 12 months after the procedure. A statistically significant increase in bone density was observed in the medial tibial condyle area, while a statistically insignificant decrease of bone density was noted in the medial femoral condyles. Bone density increased in the lateral tibial condyle area, whereas there were no density changes in the area of the lateral femoral condyles. The research results demonstrate that the relief achieved in ailments after high tibial osteotomies does not directly correspond to the bone density of the affected areas.
Piotr Kosior, Lukasz Czuraszkiewicz, Marta Tarczynska, Tomasz Mazurkiewicz and Krzysztof Gaweda
Alba Gómez-Cabello, Germán Vicente-Rodríguez, Isabel Navarro-Vera, Diana Martinez-Redondo, Carmen Díez-Sánchez and José Antonio Casajús
The aim of this study was to provide information about the relationship of bone mineral content (BMC) and density (BMD) with some physical-fitness-related variables in a sample of women with fibromyalgia (FM) and age-matched women without FM. Twenty-eight women clinically diagnosed with FM (age 51.1 ± 8.4 yr, M ± SD) and 22 age-matched controls participated in the study. Whole-body BMC and BMD, lean mass, handgrip strength, quadriceps strength, and cardiovascular fitness were measured in all participants. The association between physical-fitness variables and bone-related variables was tested by linear regression controlling for body weight as a possible confounder. There were no differences in BMC or BMD between groups. Women with FM had lower values of handgrip strength, quadriceps strength, and VO2peak than the control group. Handgrip strength and aerobic capacity were associated with BMC and BMD and quadriceps strength was associated with BMD in women with FM; however, only VO2peak was associated with BMC in the group of women without FM. Bone mass of women with FM may be more susceptible to changes in physical fitness than that of the women without fibromyalgia.
Susan K. Grimston, Jack R. Engsberg, Reinhard Kloiber and David A. Hanley
Increased incidence of stress fracture has been reported for amenorrheic runners, while some studies have reported decreased spinal bone mass in amenorrheic runners. Based on results from these studies, one tends to associate decreased spinal bone mass with an increased risk of stress fracture. The present study compared regional bone mass and external loads during running between six female runners reporting a history of stress fracture (seven tibial and three femoral neck) and eight female runners with no history of stress fracture. Dual photon absorptiometry measures indicated significantly greater spinal (L2-L4) and femoral neck bone mineral density in stress fracture subjects (p<0.05) but no differences between groups for tibial bone density. Normalized forces recorded from Kistler force plates indicated significantly greater vertical propulsive, maximal medial, lateral, and posterior forces for stress fracture subjects during running (p<0.05).
Bernadette L. Foster, Jeff W. Walkley and Viviene A. Temple
The purpose of this study was to describe and compare the bone mineral density of women with intellectual disability (WID) and a comparison group (WOID) matched for age and sex. One hundred and five women, ages 21 to 39, M = 29, were tested for their bone mineral density levels at the lumbar spine and three sites of the proximal femur using dual energy X-ray absorptiometry. No significant difference between groups existed (λ = 0.94, F(4, 98) = 1.68, p = .16, η2 = .06); however, one-sample t tests revealed that bone mineral density for the WID group (n = 35) was significantly lower than zero at the Ward’s triangle (p < .01) and the lumbar spine (p < .05). Approximately one-quarter of WID had low bone density at these two sites, suggesting that WID may be at risk of osteoporotic fracture as they age.
Maja Zamoscinska, Irene R. Faber and Dirk Büsch
was searched in July 2019 by using combinations of the terms: “osteoporosis” OR “osteopenia” OR “bone loss” (P) AND “strength training” OR “resistance training” (I) AND “bone density” OR “BMD” (O). Titles, abstracts, and/or full texts were used to check for the inclusion and exclusion criteria
Tina Smith, Sue Reeves, Lewis G. Halsey, Jörg Huber and Jin Luo
activity, only moderate and vigorous activity levels and high impacts have been shown to improve bone density in adolescents and middle aged women. 26 , 37 , 38 Previous work by Kelley et al 27 has demonstrated that types of activities generating very light (<5 BW/s), light (>5 BW/s), moderate (>10 BW
Tracey L. Clissold, Paul W. Winwood, John B. Cronin and Mary Jane De Souza
Osteoporosis is a condition where bone density and bone strength is reduced, and there is a significantly increased risk of bone fracture. 1 Osteoporosis is a silent epidemic responsible for fractures in 50% of women and 20% of men worldwide. 2 Approximately 52 million women and men have
Senia Smoot Reinert, Allison L. Kinney, Kurt Jackson, Wiebke Diestelkamp and Kimberly Bigelow
. Adams K , O’Shea P , O’Shea KL . Aging: its effects on strength, power, flexibility, and bone density . Strength Condit J . 1999 ; 21 : 65 – 77 25. Duarte M , Zatsiorsky VM . On the fractal properties of natural human standing . Neurosci
Amy R. Lewis, William S.P. Robertson, Elissa J. Phillips, Paul N. Grimshaw and Marc Portus
doi:10.2165/00007256-200232010-00002 10.2165/00007256-200232010-00002 11772160 3. Dionyssiotis Y . Changes in Bone Density and Strength of the Tibia and Alterations of Lean and Fat Mass in Chronic Paraplegic Men . [Doctoral Dissertaion] Athens, GA : Laboratory for Research of the Musculoskeletal