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Related Concept Videos

Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Hyperglycemia01:29

Hyperglycemia

Hyperglycemia is an abnormally high blood glucose level. It is diagnosed by fasting glucose ≥126 mg/dL, 2-hour oral glucose tolerance test (or OGTT) ≥200 mg/dL, random glucose ≥200 mg/dL with symptoms, or HbA1c ≥6.5%. However, HbA1c results may be unreliable in certain conditions, such as anemia or hemoglobinopathies, and the diagnosis should be confirmed unless classic symptoms are present. Postprandial hyperglycemia is typically considered significant when glucose levels exceed 180 mg/dL two...
Hypoglycemia01:26

Hypoglycemia

Hypoglycemia is a blood glucose level below 70 mg/dL. It commonly occurs in individuals using insulin or insulin-secreting drugs, but may also arise in non-diabetic conditions. People with type 1 diabetes are at the highest risk because they depend on exogenous insulin. People with type 2 diabetes are also at risk, especially when treated with insulin or medications such as sulfonylureas, which increase insulin release regardless of blood glucose levels. It develops when insulin levels exceed...
Hormones Regulating Blood Glucose01:16

Hormones Regulating Blood Glucose

Insulin is released by beta cells of the pancreas when blood glucose levels are high. It facilitates glucose absorption and utilization in insulin-dependent cells with insulin receptors on their plasma membranes. Insulin promotes glucose uptake by increasing the number of glucose transport proteins in the cell membrane, allowing glucose to enter the cell. As a result, glucose utilization and ATP production are enhanced.
In addition to accelerating glucose uptake and utilization, insulin has...
Hypoglycemia and Glucagon01:15

Hypoglycemia and Glucagon

Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...

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Related Experiment Video

Updated: May 21, 2026

Glycemic Impact on Knee Osteoarthritis Symptoms on Physical, Radiographic, and Inflammatory Markers among Individuals Aged 50 and Over with Diabetes
07:22

Glycemic Impact on Knee Osteoarthritis Symptoms on Physical, Radiographic, and Inflammatory Markers among Individuals Aged 50 and Over with Diabetes

Published on: March 7, 2025

High-impact loading on the skeleton is associated with a decrease in glucose levels in young men.

Peder Wiklund1, Anna Nordström, Magnus Högström

  • 1Department of Surgical and Perioperative Sciences, Umeå University, Sweden.

Clinical Endocrinology
|June 9, 2012
PubMed
Summary
This summary is machine-generated.

High-impact exercise may improve glucose metabolism independently of aerobic fitness. This study found that bone loading reduced glucose and osteocalcin levels in men, suggesting a direct skeletal role in metabolic regulation.

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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

Published on: January 29, 2018

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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
07:56

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

Published on: January 29, 2018

Area of Science:

  • Exercise physiology
  • Metabolic health
  • Bone biology

Background:

  • The skeleton's role in energy metabolism is increasingly recognized, particularly through osteocalcin (OC), a molecule produced by osteoblasts.
  • High-impact (HI) exercise stimulates bone formation, but its direct effects on glucose and lipid metabolism, independent of cardiorespiratory changes, are not fully understood.

Purpose of the Study:

  • To investigate if HI exercise, known to stimulate bone formation, alters glucose and lipid metabolism.
  • To determine if these metabolic changes occur independently of cardiorespiratory effects.
  • To explore the potential mediating role of osteocalcin (OC) in this association.

Main Methods:

  • A prospective intervention study involving 50 men aged 20-32 years, divided into an intervention and control group.
  • The intervention group performed various jumps for 8 weeks, with gradually increasing frequency.
  • Measurements included fat tissue glycerol (lipolysis marker), blood assays for OC, glucose, lipid metabolism markers, and physical activity monitoring via accelerometer.

Main Results:

  • HI exercise was associated with decreased glucose and osteocalcin (OC) levels after adjusting for baseline and physical activity changes.
  • Adrenalin levels also decreased significantly in the intervention group.
  • While other metabolic variables did not reach statistical significance, trends favored the intervention group.

Conclusions:

  • High-impact loading on the skeleton may influence glucose metabolism.
  • These effects appear to be independent of the level of aerobic exercise.
  • The findings suggest a direct link between skeletal loading and metabolic regulation.