"Exercise Physiological aspects." . . "Physical education and training." . . "Rythme cardiaque." . . . . "Heart beat." . . . . . . . . . . "The Effect of training at three different heart rate levels upon cardiovascular fitness"@en . . . . "The effect of training at three differenc heart rate levels upon cardiovascular fitness"@en . . "The effect of training at three different heart rate levels upon cardiovascular fitness"@en . "The effect of training at three different heart rate levels upon cardiovascular fitness" . . . . . . . . . . . .