An athlete is preparing for a game. They've put on their gear and done their warmup, and now it's time for one more routine — stretching. Typically, athletes stretch before physical activity to avoid injuries like strains and tears. But...

It seems like a good idea to stretch before exercising, but does it actually prevent injuries, or improve your performance?

In this video, we discuss hypertrophic cardiomyopathy, the mechanism by which a heart enlarges in response to chronically elevated afterload and high blood pressure.

In this video, we discuss the mechanisms by which sarcomeres can be added or removed from skeletal muscle myofibrils: in parallel or in series.

In this video, we discuss the differences between hyperplasia, sarcoplasmic hypertrophy, and myofibrillar hypertrophy.<br/>

How do muscles actually contract? There's a lot involved in the process. And in this video, we talk about muscle contraction at the molecular level. We'll discuss sarcomeres, actin, myosin, the muscle action potential and the roles of...

In this video, I show how the release of Calcium ions from the sarcoplasmic reticulum results in skeletal muscle contraction at the level of the sarcomere. Enjoy

Have you ever wondered what creatine is and how it works, then this video is for you. I'll explain the biology behind creatine in the context of how muscle contraction happens. Enjoy!

In this video, we will discuss the structure of the sarcomere and see how that relates to sarcomere shortening (with animation).