Effect of pH on muscle fatigue in isolated frog sartorius muscle.
Isolated frog sartorius muscle was incubated for 3 h in Ringer solution (5 mM phosphate buffer) at pH 7 or pH 8. Each muscle was stimulated supramaximally at 2 per second continuously. Muscles at pH 7 fatigued more quickly than those at pH 8. Muscles at pH 8 released acid whereas those at pH 7 did not.
D000143:Acids / Q000097:blood; D000818:Animals; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D009132:Muscles / Q000502:physiology*; D011894:Rana pipiens
D000143:Acids