In vivo 31P-NMR studies on aerobic recovery of frog muscle following tetanus.
Aerobic recovery after a 60-sec tetanus of skeletal muscle of frog was studied using the in vivo 31P-NMR method with a topical magnetic resonance spectrometer (TMR) at 17 degrees C. Creatine phosphate recovered with a time constant of about 25 min-1. Sugar phosphates increased by the Pasteur effect, and saturated at about 4.5 mmol/kg muscle. The high level of the sugar phosphates was sustained during the following 60 min.
D000255:Adenosine Triphosphate / Q000032:analysis; D000818:Animals; D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy; D009119:Muscle Contraction; D009132:Muscles / Q000032:analysis* / Q000502:physiology; D010710:Phosphates / Q000032:analysis; D010725:Phosphocreatine / Q000032:analysis; D010759:Phosphorus Isotopes; D011892:Rana catesbeiana; D013057:Spectrum Analysis
D010710:Phosphates; D010759:Phosphorus Isotopes; D010725:Phosphocreatine; D000255:Adenosine Triphosphate