The sarcoplasmic reticulum (SR) is a specialised organelle in skeletal muscle fibres that plays a pivotal role in regulating calcium dynamics crucial for muscle contraction and relaxation. Acting as ...

The previous three articles in this series explored the form and function of muscle and, in particular, skeletal muscle. This article outlines how the contraction of muscles (outlined in part three of ...

When you're running up stairs or out on a jog, your muscles eventually start to feel heavy and weak. That's fatigue setting ...

Isotonic contractions – these occur when a muscle contracts and changes length and there are two types: Isotonic concentric contraction – this involves the muscle shortening. The origin and insertion ...

People often discuss the importance of removing, or “flushing out,” lactic acid from the blood after intense exercise to reduce muscle soreness, speed recovery, or boost athletic performance. After ...

Research in exercise physiology has significantly advanced our understanding of muscle fatigue – the exercise‐induced decline in the ability of a muscle to generate force. This phenomenon encompasses ...

No one can live without a heart pumping blood to the rest of the body. New research from the University of Missouri School of Medicine reveals more information about this vital function and how it’s ...