The effect of jump exercise on middle-aged osteopenic rats was investigated. Forty-two 9-mo-old female rats were either sham-operated (Sham) or ovariectomized (OVX). Three months after surgery, the rats were divided into the following groups: Sham sedentary, Sham exercised, OVX sedentary, and OVX exercised. Rats in the exercise groups jumped 10 times/day, 5 days/wk, for 8 wk, with a jumping height of 40 cm. Less than 1 min was required for the jump training. After the experiment, the right tibia and femur were dissected, and blood was obtained from each rat. OVX rats were observed to have increased body weights and decreased bone mass in their tibiae and femurs. Jump-exercised rats, on the other hand, had significantly increased tibial bone mass, strength, and cortical areas. The bone mass and strength of OVX exercised rats increased to approximately the same extent as Sham exercised rats, despite estrogen deficiency or osteopenia. Our data suggest that jump exercise has beneficial effects on lower limb bone mass, strength, bone mineral density, and morphometry in middle-aged osteopenic rats, as well as in Sham rats.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1152/japplphysiol.00781.2002 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Pilot Study of the Gut Microbiota in Spine Fusion Surgery Patients.
HSS J
February 2025
Hospital for Special Surgery, New York, NY, USA.
Background: The microbiome has been identified as a contributor to bone quality. As skeletal health is critical to success of orthopedic surgery, the gut microbiome may be a modifiable factor associated with postoperative outcomes. For spine fusion surgery in particular, bone formation and sufficient bone mineral density are essential for successful outcomes.
View Article and Find Full Text PDFBone imaging modality precision and agreement between DXA, pQCT, and HR-pQCT.
JBMR Plus
February 2025
Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC 3168, Australia.
Quantifying precision error for DXA, peripheral QCT (pQCT), and HR-pQCT is crucial for monitoring longitudinal changes in body composition and musculoskeletal outcomes. Agreement and associations between bone variables assessed using pQCT and second-generation HR-pQCT are unclear. This study aimed to determine the precision of, and agreement and associations between, bone variables assessed via DXA, pQCT, and second-generation HR-pQCT.
View Article and Find Full Text PDFOUTCOME OF FOUR PATIENTS WITH OSTEONECROSIS AFTER ONE-YEAR PAMIDRONATE TREATMENT.
Acta Endocrinol (Buchar)
January 2025
Dokuz Eylül University, Faculty of Medicine, Division of Pediatric Endocrinology.
Context: Osteonecrosis (ON) is bone death caused by inadequate blood supply and its optimal management remains uncertain.
Objective: We describe the outcomes of BP (pamidronate) treatment in our patients.
Design: Data regarding clinical, laboratory, magnetic resonance imaging (MRI) studies, and bone mineral density measurements (BMD) were recorded before and one year after treatment (reevaluation).
Nonlinear Association Between Serum Uric Acid and Femoral Neck Bone Mineral Density in Male Patients with Metabolic Dysfunction-Associated Fatty Liver Disease.
Diabetes Metab Syndr Obes
January 2025
Department of Gastroenterology, The Affiliated Huai 'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, People's Republic of China.
Purpose: To investigate the relationship between serum uric acid (SUA) levels and femoral neck bone mineral density (BMD) in patients with metabolic dysfunction-associated fatty liver disease (MAFLD).
Patients And Methods: This cross-sectional study included 597 adult inpatients with type 2 diabetes mellitus and ultrasonography-confirmed fatty liver disease. Participants were stratified into tertiles based on femoral neck BMD.
Practical evaluation of risk factors in patients with osteoporosis-induced thoracic and lumbar vertebral compression fractures requiring surgery.
Surg Pract Sci
December 2024
Spine Surgery Department, Vietduc University Hospital, Viet Nam.
This descriptive longitudinal study aims to assess the risk factors for severe thoracic and lumbar vertebral compression fractures before and after surgery, contributing to preventive knowledge enhancement in communities and effective treatment management. The study involved 34 patients diagnosed with thoracic and lumbar vertebral compression fractures requiring surgery with bio-cement-augmented pedicle screws between June 2021 and June 2022. Postoperative complications, notably adjacent segment injury, were monitored, and patients received osteoporosis management post-surgery.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!