**5. Conclusion**

With this narrative review, we could verify that there is a great lack of studies on the subject of warm-up for strength performance, resistance training performance, and force production. It was also possible to show that some authors did not report benefits after warm-up, however, others found quite significant results in their studies. These positive results were either after using only a specific warm-up or using a general warm-up followed by a specific warm-up. So, it is possible to determine that special attention on this topic is needed. Nevertheless, most of the studies tended to suggest that a warm-up should be performed before resistance training is performed. The increased strength outcomes seemed to be better when a higher load is used during warm-up, with few repetitions. Moreover, the use of a general warm-up showed to be beneficial in some specific assessments. Therefore it can also be a strategy to be applied and combined with the specific warm-up. Further investigations should be developed to better understand and determine the effects of warm-up, or even other studies using another type of exercise, so we can provide a more in-depth conclusion.
