by Jim Burns | Sep 18, 2026 | Be Simply Fit, Uncategorized
As we get older, maintaining muscle is important. But when it comes to preventing falls, simply having muscle may not be enough. We also need the ability to use that muscle quickly. That is where Type II muscle fibers become especially important. Type II fibers are...
by Jim Burns | May 20, 2026 | Uncategorized
For many people, exercise becomes part of their identity. When illness or surgery forces someone to stop exercising for weeks or even months, frustration quickly sets in. The body feels weaker, endurance drops, muscles shrink, and weight may increase. The natural...
by Jim Burns | May 11, 2026 | Be Simply Fit, Uncategorized
Cardiac Recovery: What It Is, How to Measure It, and Why It Matters As a trainer who has spent years helping adults and seniors improve their health, I believe one of the most overlooked indicators of cardiovascular fitness is not how high your heart rate goes during...
by Jim Burns | Mar 24, 2026 | Be Simply Fit, Uncategorized
This summary explains how the LIFTMOR study changed how experts think about exercise for osteoporosis—showing that heavy resistance training + impact exercises can safely improve bone density in older women when done correctly and supervised. What the LIFTMOR Study...
by Jim Burns | Feb 15, 2026 | Be Simply Fit, Uncategorized
Why Understanding the Difference Matters — Especially If You’re on Heart Medication As a trainer who has had a quadruple bypass and understands what it means to train with cardiac history, I have learned something very important: How hard you feel you’re working and...
by Jim Burns | Jan 9, 2026 | Be Simply Fit, Uncategorized
Insulin sensitivity describes how well your body responds to insulin, the hormone that moves sugar (glucose) from your bloodstream into your cells to be used for energy. Think of insulin like a key 🔑 Good insulin sensitivity: The key works easily. A small amount of...
