Final answer:
To adjust the difficulty of a strength training exercise, one can decrease the weight, reduce repetitions or sets, or modify the technique while ensuring that the muscles remain challenged without risking injury.
Step-by-step explanation:
When a strength training exercise is found to be difficult, there are several ways to adjust the exercise to better match the individual's current fitness level. One method is to decrease the weight being lifted, allowing the muscles to handle the load properly and maintain good form. Another method is to reduce the number of repetitions or sets, giving the muscles more time to rest between efforts. Additionally, the exercise's difficulty can be adjusted by modifying the form or technique, such as changing the range of motion to a more manageable level.
It's important to ensure that these adjustments still provide enough intensity for the muscles to be challenged, as this is necessary for the muscles to adapt and grow stronger. Nonetheless, the exercise should not be so difficult that it compromises form or leads to injury. Balancing challenge and safety is key to effective strength training.