Raphael Brandon explains how rehab specialists can exploit our emerging knowledge of tendon properties. The properties and behaviour of the muscle-tendon complex (MTC) is a relatively new focus for sports science research, but it is attracting a lot of interest.rucially, the muscles and tendons interact, with the elastic properties of the tendons contributing both to the type and quality of movement. In almost all movements, when the muscle contracts, the tendon will lengthen before it shortens, independent of any change in muscle length.
Cambrian Explosion. A relatively brief time in geologic history (30-50 MY) when large, hard-bodied forms of animals with most of the major body plans known today appeared in the fossil record. This burst of evolutionary change occurred about 535-525 million years ago. No new major phyla since. relatively brief time in geologic history (30-50 MY) when large, hard-bodied forms of animals with most of the major body plans known today appeared in the fossil record. This burst of evolutionary change occurred about 535-525 million years ago.
This stunning and unique evolutionary flowering is termed the Cambrian explosion, taking the name of the geological age in whose early part it occurred. But it was not as rapid as an explosion: the changes seems to have happened in a range of about 30 million years, and some stages took 5 to 10 million years.he Cambrian Explosion: For most of the nearly 4 billion years that life has existed on Earth, evolution produced little beyond bacteria, plankton, and multi-celled algae. But beginning about 600 million years ago in the Precambrian, the fossil record speaks of more rapid change.