{"id":16982,"date":"2023-03-30T15:18:35","date_gmt":"2023-03-30T09:48:35","guid":{"rendered":"https:\/\/blog.fourthfrontier.com\/in\/?post_type=web-story&p=16982"},"modified":"2023-03-30T15:18:36","modified_gmt":"2023-03-30T09:48:36","slug":"measuring-heart-health-understanding-heart-rate-and-cardiac-fitness","status":"publish","type":"web-story","link":"https:\/\/blog.fourthfrontier.com\/in\/web-stories\/measuring-heart-health-understanding-heart-rate-and-cardiac-fitness\/","title":{"rendered":"Measuring Heart Health: Understanding Heart Rate and Cardiac Fitness"},"content":{"rendered":"