ABSTRACT
The appearance of the COVID-19 Pandemic has caused alteration in the daily routine, However, despite the circumstanc-es, self-efficacy plays a very important role for physical exercise. Objective: To determine the level of self-efficacy for physical exer-cise in men and women over 18 years of age, before and during the Covid-19 Pandemic, Method: A descriptive, cross quantitative study was carried out. The sample consisted of 1,612 adults from the city of Chihuahua (662 men and 950 women) older than 18 years. The Self-efficacy Questionnaire for the study (CAE-E) was used, validated in the Mexican version by Delgado et al. (2017). Results: It is verified with the Wilcoxon test that there is a significant difference before and during the Covid-19 Pandemic since it shows a significance of = 0.000 <? = 0.05, for which it is stated with 95% confidence that the averages of the medians are different. The most obvious changes are at the very low level of self-efficacy of 11.2%, which increased to 28.4% pooled, and at the moderate level that was before the pandemic of 35.9%, it fell to 21.9%. Conclusion: The results found in this work indicate that confinement in the city of Chihuahua, Mexico, affected self-efficacy in physical exercise, wich decreased in the population studied, people who had a moderate level before the Covid-19 pandemic suffered a decrease in their moderate to low self-efficacy and those who were before the Covid-19 pandemic at a low level of low to very low self-efficacy, this shows that the apparent level of self-efficacy to physical exercise before confinement was not entirely real and did not they made the necessary adjustments to maintain their level and remain physically active.