Which of the following is NOT a positive effect of teaching students strength training exercises?

The statement regarding decreased tension on joints with increased muscle development is not considered a positive effect of strength training in the context described. While strength training indeed promotes muscle development, it does not necessarily result in a decrease in tension on the joints. Instead, an important aspect to consider is that well-developed muscles can help support and stabilize joints, potentially improving joint function and reducing the risk of injury.

On the other hand, increased muscular endurance, increased muscle mass, and improved overall physical health are all well-documented benefits of strength training. Muscular endurance refers to the ability of muscles to perform continuously without fatigue, which is enhanced through strength training. Increased muscle mass contributes to a higher metabolism and better overall strength. Improved physical health includes benefits such as enhanced cardiovascular fitness, better body composition, and a reduction in risks of chronic diseases, all of which are linked to regular strength training practices. Thus, the correct response highlights a misconception about the relationship between muscle development and joint tension.