The text discusses the investigation of muscle function using cords to measure tension changes and emphasizes the difficulty of visually understanding these changes. It highlights the value of experimentation and observation in understanding muscle dynamics and life. Lastly, it notes how certain actions like raising or lowering the arm significantly influence chest muscles.
Muscle Measurement and Function
When investigating the functioning of muscles, one might use some cords to bind around the joints and places you are examining. Often, your model, no matter how unknowing they may be, can tell you how and when the bound strings tighten more or less; in many cases, this might not be visible to you. We candidly admit that we often used this concept in our design.
If one wishes to investigate life with what we have discussed so far, experiment with each case and action, and observe how it behaves in those and other actions, we believe that such a person would not regret the time or effort spent. Indeed, if they find the true method to achieve their intentions and assist where knowledge of life may lack. If it were possible to create body parts in which one could not only see the muscles but also the changing conditions and workings of each action and event, we would have found a great matter in painting. Since this isn’t feasible, and such is reserved for the Creator alone, we must assist ourselves with the acknowledged means or similar methods and with the observation of life.
There are also various situations regarding muscles that should generally be observed. Among these, note that the raising or lowering of the arm leads to the greatest change in the chest muscles, whether they spread out or contract and appear more swollen.