[Morphofunctional changes in the long tubular bones of animals which have developed while readapting after physical loads].
The investigation has been performed on 120 white male rats of Wistar line. By means of the morphometry, electron microscopy and chemical methods dynamics of readaptive changes have been studied in long tubular bones during the period, when the effect of physical loadings both of dynamic and static character and of various intensity has been stopped, up to the old periods of the animals' life. Readaptation after moderate dynamic and static loadings is occurring for a long time and steadily. The changes caused by static loadings are nearly completely restored in a year. Morphofunctional rearrangements of the long tubular bones in the readaptation process after moderate dynamic loadings is characterized by residual manifestations. Prolonged readaptation after intensive physical loadings does not result in a complete restoration of all the parameters studied concerning growth and skeletal development. An intensive dynamic loading produces more stable changes, that are not subjected to a complete correction even after a passive readaptation for a year. Readaptation morphofunctional rearrangements of the long tubular skeletal bones depend on conditions of the previous regimen of the motor activity.
D000222:Adaptation, Physiological; D000818:Animals; D001696:Biomechanical Phenomena; D001846:Bone Development; D001862:Bone Resorption; D001842:Bone and Bones / Q000033:anatomy & histology / Q000502:physiology*; D006132:Growth Plate / Q000033:anatomy & histology; D008297:Male; D051379:Mice; D009043:Motor Activity / Q000502:physiology*; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors
Morfofunktsional'nye izmeneniia dlinnykh trubchatykh kosteĭ u zhivotnykh, razvivavshikhsia v usloviiakh readaptatsii posle fizicheskikh nagruzok.