All rights reserved. Types of contractions. When we think of a muscle contracting normally, we tend to think of the muscle shortening as it generates force. While it's true that this is a way of muscle contracting, there are many different ways that a muscle can generate force, as seen in Figure 1 below.
New York City is the most-populous city in the United States, with an estimated record high of 8,491,079 residents as of 2014, incorporating more immigration into the city than outmigration since the 2010 United States Census.
Population Growth. The New York metropolitan area continues to hold the top position, having added nearly 400,000 residents since 2010 to rise to a population of 19,950,000 residents. At its current rate of growth, New York will exceed a population of 20 million in 2014.