Results 141 to 150 of about 82,594 (297)

CT-Derived Hounsfield Units vs Dual-Energy X-Ray Absorptiometry in Spine Surgical Candidates: Concordance, Discordance, and Clinically Actionable Thresholds

Global Spine Journal
Study Design Retrospective study. Objective To evaluate diagnostic concordance between CT–derived Hounsfield Units (HU) and DXA T-scores in spinal surgery candidates, and to identify factors related to discordance.
Akihiko Hiyama MD, PhD, Daisuke Sakai MD, PhD, Hiroyuki Katoh MD, PhD, Masato Sato MD, PhD, Masahiko Watanabe MD, PhD   +4 more
doaj   +1 more source

Comparison of Associations of DXA and CT Visceral Adipose Tissue Measures With Insulin Resistance, Lipid Levels, and Inflammatory Markers

, 2017
Visceral adipose tissue (VAT) measured by computed tomography (CT) is related to insulin resistance, lipids, and serum inflammatory markers. Our objective was to compare the strength of the associations of VAT measured using dual-energy X-ray ...
Group, the Osteoporotic Fractures in Men Study Research, John T. Schousboe, Allyson M. Kats, Ensrud, Kristine E, Ann V. Schwartz, Nancy E. Lane, Langsetmo, Lisa, Barrett-Connor, Elizabeth, Lisa Langsetmo, Taylor, Brent C, Lane, Nancy E, Schwartz, Ann V, Miljkovic, Iva, Kristine E. Ensrud, Vo, Tien N, Tien N. Vo, Kats, Allyson M, Marshall, Lynn M, Lynn M. Marshall, Iva Miljkovic, Brent C. Taylor, Eric S. Orwoll, Elizabeth Barrett-Connor, Orwoll, Eric S, Schousboe, John T   +24 more
core   +1 more source

The effects of bed rest on cardiometabolic health: A systematic review and meta‐analysis

Experimental Physiology, EarlyView.
Abstract Horizontal bed rest (HBR) and head‐down tilt (HDT) are models of physical inactivity. In this systematic review and meta‐analysis, we aimed to quantify changes in cardiometabolic outcomes during HBR and HDT in healthy adults. Following the PRISMA guidelines, we searched PubMed, Scopus, Web of Science and Cochrane Library until 1 October 2025 ...
Konstantinos Prokopidis, Tyler Daubrah‐Scott, Alyssa Varanoske, Jordi Morwani‐Mangnani, David D. Church, Colleen S. Deane, Bethan E. Phillips, Emily J. Arentson‐Lantz   +7 more
wiley   +1 more source

DXA-derived abdominal fat free mass to predict MRI skeletal muscle mass in postmenopausal women.

Dual-energy X-ray absorptiometry (DXA) is more available than gold-standard magnetic resonance imaging (MRI), but DXA ability to estimate abdominal skeletal muscle mass (SMM) is unknown.
Thomson, Cynthia A, Wactawski-Wende, Jean, Blew, Robert M, Lind, Kimberly E, Nicholas, Jennifer Skye, Roe, Denise J, Valencia, Celina I, Schnatz, Peter F, Bea, Jennifer W W, Odegaard, Andrew O, Walker, Erika, Chen, Zhao, Bland, Victoria L, Chalke, Arushi M, Allison, Matthew, Caan, Bette   +15 more
core   +1 more source

Reply to: Comment on “Caffeine intake and bone mineral density in postmenopausal wome

Gülhane Tıp Dergisi, 2023
Kübra Tel Adıgüzel, Özlem Köroğlu   +1 more
doaj   +1 more source

Exercise during 14 days of head down tilt bedrest attenuates motor unit impairments in older humans

Experimental Physiology, EarlyView.
Abstract Head‐down tilt bedrest (HDBR) models the effects of mechanical unloading on neuromuscular function. The efficacy of exercise in preserving motor unit (MU) function in older adults during HDBR remains unclear. This study investigated the effects of 14‐day HDBR on MU properties in older adults and the protective role of exercise.
Philippe St‐Martin, Jean‐Christophe Lagacé, Mathil Ruel, Ahmed Ghachem, Guillaume Léonard, Eleonor Riesco, Mathew Piasecki, Jamie S. McPhee, Isabelle J. Dionne   +8 more
wiley   +1 more source

Impact of 14 days of head‐down bed rest and an exercise countermeasure on skeletal muscle atrophy, proteome and circulatory cytokines in older adults

Experimental Physiology, EarlyView.
Abstract Prolonged bed rest and immobilization have deleterious effects on skeletal muscle mass and function, especially in older adults. These can lead to reduced physical capacity and quality of life. Previous experiments in younger individuals show that exercise can mitigate these effects, but evidence remains scarce and inconclusive in older adults.
Jean‐Christophe Lagacé, Philippe St‐Martin, Mariano Avino, Ahmed Ghachem, Guy Hajj‐Boutros, Jose A. Morais, Jamie S. McPhee, Karen Lambert, Eléonor Riesco, Isabelle J. Dionne   +9 more
wiley   +1 more source

Screening osteoporosis using different skeletal sites: a comparison with the standard WHO criteria

Payesh, 2004
Objective(s): To compare bone mineral density of different skeletal sites and to assess the possibility of using one skeletal site for diagnosing osteoporosis as opposed to the two sites required in the WHO criteria.
Soltani A., Khaleghi Nejad N., Pajouhi M., Hamidi Z., Hossein nezhad A., Larijani B.   +5 more
doaj  

Effects of 14 days of head‐down bed rest with or without exercise, and subsequent recovery on bone turnover, density and structure in older adults

Experimental Physiology, EarlyView.
Abstract Bed rest accelerates bone loss and may exacerbate skeletal fragility. This study examined the effects of 14 days of head‐down tilt bed rest (HDBR) with or without exercise, and subsequent recovery, on bone turnover, density and structure in older adults. Twenty‐two healthy older adults (55–65 years) completed the HDBR protocol.
Guy Hajj‐Boutros, Andréa Faust, Carmelo Mastrandrea, Vita Sonjak, Dounia Rouabhia, Gustavo Duque, Richard Kremer, Stéphanie Chevalier, Julie Lacombe, Mathieu Ferron, Tyler A. Churchward‐Venne, José A. Morais   +11 more
wiley   +1 more source

Musculoskeletal decay and bone–muscle crosstalk during physical disuse: Mechanisms and integrated countermeasures

Experimental Physiology, EarlyView.
Abstract Older adults experience a markedly increased risk of falls and fractures following hospital discharge, largely due to the rapid musculoskeletal deterioration associated with bed rest. Although age‐related muscle and bone loss typically develops gradually, acute physical inactivity accelerates key biological processes underlying sarcopenia and ...
Julia Margarita Reyes, Guy Hajj‐Boutros, Dounia Rouabhia, José Morais, Felipe Salech, Gustavo Duque   +5 more
wiley   +1 more source