Spotlight On: The Muscular System

Many of us only think about our muscles when they are sore from being a “weekend warrior” or shoveling out after a snowstorm. However, without skeletal muscles we would not be able to breathe, stand upright, walk or run. The fact that our muscles make up between 40 and 50 percent of our body mass … Continue reading Spotlight On: The Muscular System

Muscle Rebuilding on the Colorado Trail

“That day, for no particular reason, I decided to go for a little run. … For no particular reason I just kept on going. I ran clear to the ocean. And when I got there, I figured, since I’d gone this far, I might as well turn around, just keep on going.” - Forrest Gump … Continue reading Muscle Rebuilding on the Colorado Trail

What Animals Can Teach Humans about Muscle Maintenance

We all know the saying “use it or lose it.” Your muscles and nerves are no exception. When people are not active, whether it’s because of bed rest, spinal cord and nerve injury, or other reasons, two big problems arise. First, the muscles shrink by losing protein (a state called atrophy). Second, nerve cells have … Continue reading What Animals Can Teach Humans about Muscle Maintenance

Myasthenia Gravis May Be (Literally) All Greek to You

Myasthenia gravis is a disease that affects the way that muscles receive signals from nerves. Myasthenia is Greek for “muscle weakness,” which is a good description of this disease’s symptoms. Muscle weakness, which worsens after physical activity but gets better with rest, is the primary symptom of the condition. Weakness may occur in any skeletal … Continue reading Myasthenia Gravis May Be (Literally) All Greek to You

Walking and the Brain, Aromatherapy for Horses and a Whole Lot More!

Physiology, the study of function from microscopic cells to complete organ systems, encompasses a wide range of fascinating topics. The annual Experimental Biology (EB) meeting is a showcase for thousands of researchers studying humans and animals alike. Check out some of the research presented at last month’s meeting in Chicago: Most people know that walking … Continue reading Walking and the Brain, Aromatherapy for Horses and a Whole Lot More!

Meet Christina McManus, Associate Professor of Physiology

  March is Women’s History Month, a time when women who have challenged—and continue to challenge—traditional roles are celebrated. In the final installment of our series, we introduce you to APS member Christina McManus, PhD, an associate professor of physiology at the Alabama College of Osteopathic Medicine. (Read part one, part two, part three and … Continue reading Meet Christina McManus, Associate Professor of Physiology

Meet Karyn Hamilton, Health and Exercise Science Professor

March is Women’s History Month, a time when women who have challenged—and continue to challenge—traditional roles are celebrated. In part four of our series, we introduce you to Karyn Hamilton, PhD, a professor in the Department of Health and Exercise Science at Colorado State University. (Read part one, part two and part three). What is your … Continue reading Meet Karyn Hamilton, Health and Exercise Science Professor

How Obesity Fuels Inactivity

  More than one in three adults and one in six children in the U.S. are obese. Obesity—defined as a serious degree of overweight—is a leading cause of death, disease and disability. Although obesity has been linked to genetic disorders, it is most often caused by unhealthy behaviors and, therefore, is preventable and reversible. Throughout … Continue reading How Obesity Fuels Inactivity

Are Cross-Country Skiers Premier Athletes?

  With winter upon us, it is a good reminder that cold weather is not an excuse for inactivity. Athletes from cold-weather climates, such as the Nordic countries, are not content to stay indoors during winter. In fact, cross-country skiers from these colder climates might be considered the premier human aerobic athletes. Although some picture … Continue reading Are Cross-Country Skiers Premier Athletes?

2016’s Ten Most Read Posts

It’s been a physiology-full 2016 on the I Spy Physiology blog! From exercise to respiration to heart health and beyond, we’ve explored how the bodies of humans and other animals work, adapt and react. Today, we take a look back at our 10 most read posts of the year. Concussions among football players was headline … Continue reading 2016’s Ten Most Read Posts