Mr. Rikard, a retired physician, underwent a total shoulder…

Mr. Rikard, a retired physician, underwent a total shoulder replacement 2 days ago.  Your supervising PT has completed the I.E. and asked you to provide outpatient treatment.  After a session of gentle stretching and isometric exercise, the patient threatens to report you for providing inadequate care, as you did not initiate the early aggressive stretching he feels he desperately needs.  He reports concern about the development of frozen shoulder (contracture) like his neighbor, which will prohibit him from playing tennis.  In an effort to alleviate his concern, you should explain:

Following LE surgery and immobilization 3 months ago, your p…

Following LE surgery and immobilization 3 months ago, your patient Mr. Palomo presents with multiple areas of muscular tightness.  You and your supervising PT agree that the most effective form of stretching to achieve an increase in ROM at this time is PNF.  Describe in detail (step by step) how the HOLD-RELAX TO IMPROVE ANKLE DORSIFLEXION PNF technique would be performed (include EACH step in the process; specify the NAME of the muscle(s) which is/are contracting, the name of the muscle(s) being stretched, how long, rest time, etc).    

A population of birds gets separated by a newly formed river…

A population of birds gets separated by a newly formed river. Over thousands of years, the two groups evolve independently and develop differences in their songs and mating behaviors. When they come into contact again, they no longer recognize each other as mates and do not interbreed. What has occurred?

Mutations introduce genetic variation, but most mutations do…

Mutations introduce genetic variation, but most mutations do not immediately result in an advantage or disadvantage. Explain how a mutation that is initially neutral could later become beneficial or harmful due to changes in the environment. Use a real or hypothetical example to support your answer.