The uptake and release of calcium ions by the sarcotubular system are believed to be an integral part of excitation–contraction coupling and relaxation of muscle, and so it is important to ...

Calcium and ATP are cofactors (nonprotein components of enzymes) required for the contraction of muscle cells. ATP supplies the energy, as described above, but what does calcium do? Calcium is ...

These translational studies are aimed at developing new therapeutic targets for heart disease. Proper contraction and relaxation of the heart depends on the coordinated flux of calcium ions in and out ...

which are essential for muscle contraction and overall muscle health. Magnesium aids in the transport of calcium and potassium ions, necessary for muscle and nerve function. Tip: Include a bowl of ...