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The effect of physical training in elderly subjects with special reference to energy‐rich phosphagens and myoglobin in leg skeletal muscle

1982; Wiley; Volume: 2; Issue: 4 Linguagem: Inglês

10.1111/j.1475-097x.1982.tb00035.x

1365-2281

Peter Möller, Ragnar Brandt,

Cardiovascular and exercise physiology

Energy-rich phosphagens and myoglobin were determined in leg skeletal muscles of seven, 61- to 80-year-old, apparently healthy male subjects. The study repeated after the participants had been exercising on an ergometer bicycle twice weekly for 6 weeks. Before training, myoglobin and all intramuscular energy-rich phosphagens were within the range recorded for a larger series of subjects of similar age. When re-examined after training the myoglobin level remained the same but creatine decreased significantly and the ratio between phosphocreatine and total creatine increased. A slight but significant rise was also observed for the ATP/ADP ratio. It is concluded that age-related changes of intramuscular phosphagens in elderly subjects in part might be due to physical inactivity.