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Related Concept Videos

Type II Diabetes II: Pathophysiology01:24

Type II Diabetes II: Pathophysiology

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PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
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Type II Diabetes I: Introduction01:26

Type II Diabetes I: Introduction

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Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by insulin resistance, in which target tissues such as the liver, muscle, and adipose tissue respond poorly to insulin. It is also associated with inadequate compensatory insulin secretion, where pancreatic β-cells fail to produce sufficient insulin. Together, these abnormalities lead to persistent hyperglycemia.EtiologyT2DM develops through a complex interaction of genetic predisposition and environmental or...
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Type I Diabetes II: Pathophysiology01:26

Type I Diabetes II: Pathophysiology

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Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular...
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Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis01:25

Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis

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Type 2 diabetes mellitus develops gradually and is often asymptomatic in early stages.Clinical ManifestationsWhen symptoms appear, they include fatigue, blurred vision, pruritus, delayed wound healing, and recurrent infections, particularly candidal infections. Peripheral neuropathy may present as numbness or tingling in the extremities. Classic hyperglycemia symptoms—polyuria, polydipsia, and polyphagia—are less common. Most patients are overweight and frequently have associated...
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Diabetes Mellitus: Type 2 and Gestational01:22

Diabetes Mellitus: Type 2 and Gestational

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Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
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Type I Diabetes I: Introduction01:12

Type I Diabetes I: Introduction

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Type 1 diabetes mellitus is a chronic metabolic disorder characterized by an absolute deficiency of insulin resulting from the autoimmune destruction of pancreatic β-cells. Although it can occur at any age, it is most commonly diagnosed in childhood, adolescence, or early adulthood. The loss of insulin production impairs cellular glucose uptake, resulting in persistent hyperglycemia and necessitating lifelong insulin therapy.Autoimmune Destruction of β-CellsThe hallmark of type 1...
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Related Experiment Video

Updated: Apr 29, 2026

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
08:45

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption

Published on: June 20, 2025

769

Accelerometer-Derived 'Weekend Warrior' Physical Activity Pattern and Microvascular Risk in Individuals With Type 2

Hao-Jie Chen1, Er-La Huang1, Ling Kuang1

  • 1Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China.

Diabetes, Obesity & Metabolism
|April 28, 2026
PubMed
Summary
This summary is machine-generated.

Engaging in physical activity as a "weekend warrior" or regularly provides similar protection against microvascular complications in type 2 diabetes and prediabetes. Both patterns significantly reduce risks compared to inactivity.

Keywords:
accelerometerdiabetesmicrovascular complicationsphysical activity patternweekend warrior

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Area of Science:

  • Endocrinology
  • Metabolic Health
  • Exercise Physiology

Background:

  • Type 2 diabetes (T2D) and prediabetes are associated with an increased risk of microvascular complications.
  • Physical activity is crucial for managing T2D and prediabetes, but optimal patterns for complication prevention are debated.
  • The

Purpose of the Study:

  • To compare the effectiveness of the

Main Methods:

  • Prospective cohort study of 12,923 adults with T2D and prediabetes from the UK Biobank.
  • Participants classified into active weekend warrior (WW), active regular, and inactive groups based on accelerometer data and moderate-to-vigorous physical activity (MVPA).
  • Cox proportional hazards models used to estimate hazard ratios (HR) for incident microvascular complications and subtypes (diabetic kidney disease [DKD], neuropathy [DN], retinopathy [DR]).

Main Results:

  • Over 7.88 years, 1235 microvascular complications occurred.
  • Both active WW (HR 0.71) and active regular (HR 0.63) patterns were associated with reduced risks compared to inactive individuals.
  • Protective effects were consistent across DKD, DN, and DR, with no significant differences between WW and regular activity groups.

Conclusions:

  • Accumulating weekly MVPA in 1-2 days (WW pattern) provides comparable microvascular protection to regularly distributed activity in individuals with T2D and prediabetes.
  • Flexible physical activity approaches can support high-risk populations in meeting weekly activity goals.
  • These findings support tailored exercise recommendations for diabetes management.