{
  "id": 10793093,
  "title": "Exercise as medicine—how exercise protects joints in aging-related osteoarthritis",
  "url": "https://urgent.news/2026/09/29/exercise-as-medicine-how-exercise-protects-joints-in-aging-related",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-29T22:00:02.000Z",
  "source": {
    "name": "Medical Xpress",
    "slug": "medical-xpress",
    "url": "https://medicalxpress.com/news/2026-09-medicine-joints-aging-osteoarthritis.html"
  },
  "original_language": "en",
  "account": "Researchers at Mass General Brigham have discovered that engaging in moderate-intensity exercise alters circulating extracellular vesicles, which in turn promotes cartilage health and tissue resilience, offering fresh insight into how physical activity protects joints from aging-related osteoarthritis. Published in Nature Aging, the study led by Drs. Hirotaka Iijima and Fabrisia Ambrosio identifies microRNA-29 as a key mediator of these benefits.",
  "summary": "Researchers at Mass General Brigham have found that moderate-intensity exercise alters circulating extracellular vesicles in ways that promote cartilage health and tissue resilience, identifying microRNA-29 as a key mediator that improved characteristics of aged cartilage cells and reduced signs of joint degeneration.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}