In simple words, administrations here refers to the group of individuals who holds managerial and executive positions in any kind of organization, that is, whether government or private and profit or charitable.
The administration in any organisation is responsible for internal and external management so all the related resources could work in co-ordination. In respect of internal aspects they have to mange the workers employed with the resources they make them available.
Whereas in respect of external management they need to co-ordinate their internal operations with the outside stakeholders such as customers or taxx authorities etc.
Isotonic contractions generate force by changing the length of the muscle and can be concentric contractions or eccentric contractions. A concentric contraction causes muscles to shorten, thereby generating force. Eccentric contractions cause muscles to elongate in response to a greater opposing force.