scholarly journals Bone Mineral Density and High-Performance Aerobic Activity in Older Adults Experience in Brazil

10.5772/55661 ◽  
2013 ◽  
Author(s):  
Luiz Eugnio Garcez Leme ◽  
Maria do Carmo Sitt
Keyword(s):  
Bone Mineral Density ◽  
Older Adults ◽  
Bone Mineral ◽  
High Performance ◽  
Mineral Density ◽  
Aerobic Activity

scholarly journals Role of Dietary Intake and Serum 25(OH)D on the Effects of a Multicomponent Exercise Program on Bone Mass and Structure of Frail and Pre-Frail Older Adults

Nutrients ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 3016
Author(s):  
Ana Moradell ◽  
David Navarrete-Villanueva ◽  
Ángel I. Fernández-García ◽  
Jorge Marín-Puyalto ◽  
Alejandro Gómez-Bruton ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Older Adults ◽  
Dietary Intake ◽  
Bone Mineral ◽  
Bone Structure ◽  
Quantitative Computed Tomography ◽  
Mineral Density ◽  
Frail Older Adults ◽  
Frail Elders ◽  
Tibia Length

The multicomponent training (MCT) effect on bone health in frail and pre-frail elders, which is influenced by dietary intake, is still unknown. The objective of this non-randomized intervention trial was to assess the effects of a 6-month MCT on bone structure in frail and pre-frail elders, and to analyse the influence of dietary intake and serum vitamin D (25(OH)D) in these changes. Thirty MCT (TRAIN) and sixteen controls (CON), frail and pre-frail completed the information required for this study. Peripheral quantitative computed tomography measurements were taken at 4% and 38% of the tibia length and dietary intake was registered. The 25(OH)D values were obtained from blood samples. Analyses of covariance (ANCOVA) for repeated measures showed significant decreases for CON in total bone mineral content at 38% of tibia length. One factor ANOVAs showed smaller decreases in bone mineral density and cortical thickness percentage of change in TRAIN compared to CON. Linear regression analyses were performed to study the influence of nutrients and 25(OH)D on bone changes. Alcohol showed a negative influence on fracture index changes, while polyunsaturated fatty acid and vitamin A showed a positive association with some bone variables. The 25(OH)D only affected positively the cortical bone mineral density. In conclusion, our MCT seems to slow down some of the bone detriments associated with ageing in frail and pre-frail older adults, with alcohol showing a negative effect on the bone and apparent limited effect of nutrients and serum 25(OH)D on training related changes.

scholarly journals Sedentary Patterns Are Associated with Bone Mineral Density and Physical Function in Older Adults: Cross-Sectional and Prospective Data

2020 ◽  
Vol 17 (21) ◽  
pp. 8198 ◽  
Author(s):  
Luís Alberto Gobbo ◽  
Pedro B. Júdice ◽  
Megan Hetherington-Rauth ◽  
Luís B. Sardinha ◽  
Vanessa Ribeiro Dos Santos
Keyword(s):  
Bone Mineral Density ◽  
Older Adults ◽  
Physical Function ◽  
Older Women ◽  
Bone Mineral ◽  
Handgrip Strength ◽  
Vigorous Physical Activity ◽  
Mineral Density ◽  
Sedentary Bouts ◽  
The Impact

Aging causes some unfavorable morphological and functional changes, such as the decline in bone mineral density (BMD) and physical function. Moderate-to-vigorous physical activity (MVPA) and sedentary time seem to be related with these alterations, but the impact of distinct patterns remains unclear. The aim of this study was to cross-sectionally and prospectively assess the association between objectively measured MVPA and sedentary patterns (bouts and breaks) with BMD and physical function in older adults. The study considered 151 Brazilians (aged ≥ 60 years), out of which 68 participants completed 2-year follow-up measurements. MVPA and sedentary patterns were measured by means of accelerometry, BMD—(total proximal femur and lumbar spine (L1-L4)) by means of dual-energy X-ray absorptiometry (DXA), and physical function—by means of physical tests. In older women, sedentary bouts >60 min were inversely associated with handgrip strength (β = −2.03, 95% CI: from −3.43 to −0.63). The prospective analyses showed that changes in sedentary bouts (20 to 30 min and >60 min) were inversely associated with changes in the lumbar spine’s BMD (β = −0.01, 95% CI: from −0.01 to −0.00 and β = −0.03, 95% CI: from −0.06 to −0.01) and the lumbar spine’s T-score (β = −0.06, 95% CI: from −0.10 to −0.01 and β = −0.27, 95% CI: from −0.49 to −0.04), respectively. In older women, sedentary patterns are cross-sectionally associated with handgrip strength and prospectively associated with BMD independent of MVPA.

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