| A | actin |
| ADP | adenosine diphosphate |
| ATP | adenosine triphosphate |
| L0 | optimal muscle fibre length |
| M | myosin |
| P1, P2 | various tensions |
| P0 | maximal isometric (tetanic) tension |
| Pi | inorganic phosphate |
| Q10 | temperature coefficient |
| V | velocity of shortening |
| Vmax | maximum |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.