phosphocreatine and Knee-Injuries

phosphocreatine has been researched along with Knee-Injuries* in 2 studies

Other Studies

2 other study(ies) available for phosphocreatine and Knee-Injuries

Article	Year
Magnetic resonance imaging and spectroscopy of thigh muscles in cruciate ligament insufficiency. Acta orthopaedica Scandinavica, 1989, Volume: 60, Issue:3 In 21 patients with injury-related, chronic, anterior cruciate ligament insufficiency, 1H-magnetic resonance (MR) imaging and 31P-MR spectroscopy of the quadriceps muscles were performed with a systemic superconductive MR apparatus. The quadriceps of the noninjured side was used as the control. The quadriceps had a reduced cross-sectional area, but the knee flexors were not reduced. T2 values were prolonged in the vastus lateralis, medialis, and intermedius, but those of the rectus femoris were not. Phosphocreatine per inorganic phosphate measured with 31P-MR spectroscopy was decreased in the atrophied muscles, which correlated with the muscular cross-section. There was no difference in the muscular pH as recorded by the chemical-shift measurements of phosphocreatine and inorganic phosphate. Serial measurements of muscle cross-sectional area and high-energy phosphate bonds reflect the recovery of muscles. Topics: Adenosine Triphosphate; Adolescent; Adult; Female; Humans; Joint Instability; Knee Injuries; Ligaments, Articular; Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy; Male; Muscles; Phosphates; Phosphocreatine; Thigh	1989
The effect of long-term circulatory occlusion on pH and energy metabolism of the quadriceps muscle in man. Clinical science (London, England : 1979), 1985, Volume: 68, Issue:5 The effect of up to 2.5 h circulatory occlusion on muscle pH and energy metabolism of the quadriceps muscle was studied in 13 patients operated on for an inveterate knee injury. Muscle samples were taken by the percutaneous needle biopsy technique at different times during the arterial occlusion and after restoration of circulation. Energy was provided by a complete utilization of phosphocreatine and by a low rate of glycolysis during 2 h of occlusion. The ATP level remained unchanged throughout the occlusion period. Muscle pH decreased from 7.0-7.1 to about 6.8 after 2 h occlusion. Muscle pH was essentially normalized within 20 min after restoration of the blood flow. Topics: Adenosine Triphosphate; Adolescent; Adult; Energy Metabolism; Female; Humans; Hydrogen-Ion Concentration; Knee Injuries; Lactates; Lactic Acid; Male; Middle Aged; Muscles; Phosphocreatine; Time Factors; Tourniquets	1985

Article

Year

Magnetic resonance imaging and spectroscopy of thigh muscles in cruciate ligament insufficiency.

Acta orthopaedica Scandinavica, 1989, Volume: 60, Issue:3

In 21 patients with injury-related, chronic, anterior cruciate ligament insufficiency, 1H-magnetic resonance (MR) imaging and 31P-MR spectroscopy of the quadriceps muscles were performed with a systemic superconductive MR apparatus. The quadriceps of the noninjured side was used as the control. The quadriceps had a reduced cross-sectional area, but the knee flexors were not reduced. T2 values were prolonged in the vastus lateralis, medialis, and intermedius, but those of the rectus femoris were not. Phosphocreatine per inorganic phosphate measured with 31P-MR spectroscopy was decreased in the atrophied muscles, which correlated with the muscular cross-section. There was no difference in the muscular pH as recorded by the chemical-shift measurements of phosphocreatine and inorganic phosphate. Serial measurements of muscle cross-sectional area and high-energy phosphate bonds reflect the recovery of muscles.

Topics: Adenosine Triphosphate; Adolescent; Adult; Female; Humans; Joint Instability; Knee Injuries; Ligaments, Articular; Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy; Male; Muscles; Phosphates; Phosphocreatine; Thigh

1989

The effect of long-term circulatory occlusion on pH and energy metabolism of the quadriceps muscle in man.

Clinical science (London, England : 1979), 1985, Volume: 68, Issue:5

The effect of up to 2.5 h circulatory occlusion on muscle pH and energy metabolism of the quadriceps muscle was studied in 13 patients operated on for an inveterate knee injury. Muscle samples were taken by the percutaneous needle biopsy technique at different times during the arterial occlusion and after restoration of circulation. Energy was provided by a complete utilization of phosphocreatine and by a low rate of glycolysis during 2 h of occlusion. The ATP level remained unchanged throughout the occlusion period. Muscle pH decreased from 7.0-7.1 to about 6.8 after 2 h occlusion. Muscle pH was essentially normalized within 20 min after restoration of the blood flow.

Topics: Adenosine Triphosphate; Adolescent; Adult; Energy Metabolism; Female; Humans; Hydrogen-Ion Concentration; Knee Injuries; Lactates; Lactic Acid; Male; Middle Aged; Muscles; Phosphocreatine; Time Factors; Tourniquets

1985