The atp solution that you used in your muscle contraction procedure contains magnesium ions, which increase the strength of contraction in glycerinated muscle. in living muscle cells, magnesium ions compete with calcium ions for binding sites on troponin molecules. in the condition of hypermagnesemia—a high concentration of magnesium ions in the blood—magnesium ions can prevent calcium ions from binding troponin. would this strengthen, weaken, or have no effect on the muscle contraction? explain.