Rasterelektronenmikroskopische Untersuchung des hyalinen Gelenkknorpels

Stofft, E; Graf, J Luzuriaga

doi:10.1159/000145733

Cited by 14 publications

(10 citation statements)

References 13 publications

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“…1983a|. It is of interest to note that leatlike struc tures have recently been observed on the guinea pig articular surface after a period of treadmill running [Stofft and Graf, 1983]. In the present study, the slight but insignificant increase of the leafy surface quality af ter treadmill running may thus be a faint reflection of the effects of physical exercise (table IV).…”

Section: Discussionsupporting

confidence: 55%

“…The preponderance of the collagen fibers over the cartilage matrix components on account of relative or absolute reduction of the ground substance was the probable reason for the phenomenon. More serious consequences of physical exercise, such as re ported by Stofft and Graf [1983], were not observed.…”

Section: Discussionmentioning

confidence: 93%

“…In general, little is known about the effects of running exercise and physical load ing on the articular cartilage. It has been reported that joint overuse and peak overloading [Dekel andWeissman, 1978: Radin et al, 1973], strenuous physical exer cise [Schneider, 1970;Stofft and Graf, 1983;. and diminished joint loading [Palmoski et al.…”

Section: Introductionmentioning

confidence: 99%

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Influences of Joint Immobilization and Running Exercise on Articular Cartilage Surfaces of Young Rabbits

Jurvelin

Helminen

Lauritsalo

et al. 1985

Cells Tissues Organs

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The influences of joint immobilization and running exercise on the articular cartilage surfaces of the patella and lateral tibial condyle of young rabbits were investigated by the semiquantitative stereomicroscopic and scanning electron microscopic methods during a period of 8 weeks. The smoothness of the articular surfaces was disturbed already 1 week after the onset of immobilization. Leafy, slightly rough and rough surface qualities associated with superficial splits were observed. The changes were of the same nature after a longer period of immobilization. Running exercise on the treadmill (150–300 m twice a day, 12–24 min per turn, 5 times a week) led to an increase of the striated surface quality at 1 to-2-week intervals as compared with the controls. It was apparent that during immobilization remarkable changes of the articular cartilage took place within the first week, while running exercise up to 8 weeks elicited only transient or minor alterations of the articular surface.

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Section: Discussionsupporting

confidence: 55%

Section: Discussionmentioning

confidence: 93%

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Influences of Joint Immobilization and Running Exercise on Articular Cartilage Surfaces of Young Rabbits

Jurvelin

Helminen

Lauritsalo

et al. 1985

Cells Tissues Organs

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“…In mature birds the surface does not show humps and pits [10, 13, 14, 29], or undulations [7,11,32] which are likely to represent preparation artefacts [16,37]. Although we were able to avoid the occurrence of oval depressions at the bottom of which collagen fibres are seen in mammals [37], they occurred in mature and not in immature chickens. Whether or not these were artefacts in chickens remains to be elucidated.…”

Section: Discussionmentioning

confidence: 99%

“…Identical changes were demonstrated in human articular cartilage at various stages of osteoarthrosis [2,7,11,26,33] and in guinea pigs which were subjected to enforced long-term running [37].…”

Section: Discussionmentioning

confidence: 99%

The ultrastructure of articular cartilage of the chicken's knee joint

Stofft

Freese

et al. 1993

International Orthopaedics

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Levels of chondroitin‐6‐sulfate and nonaggregating proteoglycans at articular cartilage contact sites in the knees of young dogs subjected to moderate running exercise

Säämänen

Tammi

Kiviranta

et al. 1989

Arthritis & Rheumatism

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The levels and types of proteoglycans in articular cartilage of the knees of young beagle dogs were studied after 15 weeks of running exercise, at 4 km/day. Running increased the levels of proteoglycans in the cartilage of the patella, the superior patellofemoral groove, and the summit of the medial condyle of the femur, all of which are considered contact sites subject to enhanced loading caused by running. The elevated content of uronic acid at the femoral sites proved to be due to proteoglycans that were unable to aggregate with hyaluronic acid. There was no change in the content of aggregating proteoglycans. Analysis of chondroitinase AC–derived disaccharides at the same sites showed an increase in chondroitin‐6‐sulfate content as compared with chondroitin‐4‐sulfate levels. We believe that this modulation of the proteoglycan matrix reflects enhanced tissue maturation and physiologic adjustment to higher local contact pressures.

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Rasterelektronenmikroskopische Untersuchung des hyalinen Gelenkknorpels

Cited by 14 publications

References 13 publications

Influences of Joint Immobilization and Running Exercise on Articular Cartilage Surfaces of Young Rabbits

Influences of Joint Immobilization and Running Exercise on Articular Cartilage Surfaces of Young Rabbits

The ultrastructure of articular cartilage of the chicken's knee joint

Levels of chondroitin‐6‐sulfate and nonaggregating proteoglycans at articular cartilage contact sites in the knees of young dogs subjected to moderate running exercise

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