Which of the following factors can negatively influence exercise habits?

Reinforcing factors from others can negatively influence exercise habits as they often include feedback or pressure from peers, family, or social groups that may discourage regular physical activity. If significant others in a person's life are unsupportive or critical of their exercise intentions, it can lead to feelings of inadequacy or demotivation. For example, if friends make light of someone's efforts to be more active or prefer sedentary activities, it can create a conflict that dissuades them from maintaining or developing healthy exercise routines.

On the other hand, health knowledge, personal goals, and affective responses to exercise typically have a more positive influence on exercise habits. Health knowledge equips individuals with the understanding of the benefits of physical activity, personal goals provide motivation and a clear direction for progress, and positive affective responses to exercise can enhance enjoyment and increase the likelihood of adherence to exercise programs.