[Effects of various load intensities in the framework of postoperative stationary endurance training on performance deficit of the quadriceps muscle of the thigh].

The development of a muscular hypertrophy represents one of the most important purpose in a postoperative training. With the example of an isokinetic training the present study was meant to record if the choice of the load intensity is of importance in this connection. 36 patients with an anterior crucial ligament rupture, who were divided into three groups, underwent a stationary training for a period of four weeks.

[Lack of fatigue of the musculature in patients after immobilization--a paradox?].

The isometric strength of knee extensors was measured in patients six weeks after cruciate ligament surgery over a contraction period of 30 sec. The characteristics of the graph obtained form the measurement system were compared to the graphs of uninjured knee extensor muscles. Apart from strength reductions, as expected for atrophic muscle, the pattern of the strength graph led to the impression that these muscles did not fatigue during prolonged contraction.

[Muscle stress of rehabilitation-oriented concentric and concentric-eccentric implemented isokinetic training].

The method of lactate diagnostics is used to compare the isokinetic concentric and eccentric work pattern in conjunction with relevant muscular stress. Therefore two training groups performed at isokinetic velocity spectra of 90 degrees/s, 120 degrees/s, 150 degrees/s and 180 degrees/s four series each. The factor "work" was kept identical by performing the same training extent.