{
  "id": 13038501,
  "title": "I did 30-minute speed walks on an 18% incline for 21 days — here's what happened to my body",
  "url": "https://urgent.news/2026/10/09/i-did-30-minute-speed-walks-on-an-18-incline-for-21-days-heres-what",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-10-09T05:30:00.000Z",
  "source": {
    "name": "Tom's Guide",
    "slug": "tom-s-guide",
    "url": "https://www.tomsguide.com/wellness/workouts/i-did-30-minute-speed-walks-on-an-18-percent-incline-for-21-days-heres-what-happened-to-my-body"
  },
  "original_language": "en",
  "account": "After surgery, the author was advised to gradually return to exercise with low-impact workouts. Walking appealed to them as it was low-impact, free and helped improve mindfulness. Walking on an incline and at a fast pace increases resistance, intensity and energy expenditure. Studies show that pace or intensity is more important than distance alone for improving health markers.\n\nThe author set up their treadmill to the maximum incline (18%) and walked at a challenging speed of 4.5km/h for 20-30 minutes. They occasionally used interval training to alternate speeds and inclines. Starting at 3.5km/h, they gradually increased the pace to 4.5km/h, maintaining it throughout the workout. For intensity, they rated themselves between 6-7/10 on the Rate of Perceived Exertion (RPE) scale. This allowed the legs and core to work hard, improving cardiovascular fitness and activating the posterior chain muscles.\n\nAfter each walk, the author felt like they had activated most of their major muscle groups and worked their legs and glutes hard. This technique helped them stay focused on their body, keeping step counts high and adding low-impact movement to their day. They used this workout as a de-loading period after surgery, but found it challenging nonetheless. The author believes this workout can help manage stress, relieve tension, and boost energy expenditure, making it highly recommended for those who find it relatable.",
  "summary": "I haven't been able to lift heavy weights since surgery, but this walking workout has kept me fit in the gym.",
  "key_points": [
    "Author performed 30-minute speed walks on 18% incline for 21 days",
    "Walks increased intensity and energy expenditure, improving cardiovascular fitness",
    "Technique activated major muscle groups, managed stress and boosted energy"
  ],
  "editors_take": "This intense walking regimen demonstrates that short, high-incline, and high-intensity workouts can effectively improve cardiovascular fitness, activate major muscle groups, and boost energy expenditure, even during a de-loading period.",
  "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."
}