{
  "id": 17832923,
  "title": "Leg blood flow and muscle oxygenation are reduced when exercising with loads >=40% 1RM compared to loads",
  "url": "https://urgent.news/2026/11/02/leg-blood-flow-and-muscle-oxygenation-are-reduced-when-exercising",
  "topic": "science",
  "section": "Science",
  "published": "2026-11-02T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.10.24.761369v1?rss=1"
  },
  "original_language": "en",
  "account": null,
  "summary": "The critical occluding tension (COT) is the load at which contraction-induced increases in intramuscular pressure (IMP) collapse intramuscular vasculature and impair oxygen delivery. For knee extension resistance exercise, the COT occurs at ~30-40% 1RM, yet few studies have measured IMP alongside convective oxygen delivery. This study examined the interaction between IMP, leg blood flow, and…",
  "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."
}