Final answer:
The question asks about the specific percentage by which heat application increases the elasticity of tendons and ligaments, but without specific scientific evidence, this cannot be answered accurately. The correct answer is not specific.
Step-by-step explanation:
The question relates to how external factors, such as heat application, can affect the elasticity of tendons and ligaments. While the question does not specify a precise percentage increase in elasticity due to heat application, generally speaking, the application of heat can help increase the elasticity of these connective tissues, potentially aiding in flexibility and reducing the risk of injury. However, it should be noted that excessive heat or improper application may lead to tissue damage.
In regards to the reference information provided, it seems to be a mixture of questions from a physics or health sciences context, mentioning energy transfers, connective tissues, muscle fibers, and biomechanical stress. However, these references do not directly provide an answer to the original question about the specific percentage increase in tendon and ligament elasticity due to the application of heat.
Therefore, without specific studies or references that indicate a particular range, we should refrain from guessing. It is always important to refer to scientific evidence when discussing the effects of treatments or interventions on the human body.