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May 17, 2026Journal of Health Communication0 citations

Testing for Dose-Response Relationships in Health Messaging: Dosage, Framing, and Intentions to Exercise

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HLHelen M. LillieAVAlexis S. VegaYLYi Liao

Key Points

  • This research investigates how different dosages and framing of health messages influence intentions to exercise.
  • Participants were assigned to receive health messages with varying doses and frames regarding exercise benefits.
  • The effectiveness of messages was measured through exercise intention scores after exposure to the messages.
  • The three-dose message significantly increased exercise intentions compared to a two-dose message.
  • Gain-framed messages were associated with the highest perceived benefits of exercise.
  • Increased dosage positively affected exercise intentions through enhanced perceived benefits and perceived dose.

Abstract

= 1007), operationalizing a dose as two bullet points detailing the benefits of exercise. The three-dose message yielded greater exercise intentions compared to the two-dose message. A gain-framed, three-dose message generated the highest perceived benefits of exercise. Dose had a positive, indirect effect on exercise intentions via greater perceived benefits and greater perceived dose. These findings underscore the pressing need to further theorize dosage in health communication scholarship.

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Cite This Study

Lillie et al. (2026) studied this question.

synapsesocial.com/papers/6a095c5d7880e6d24efe27e1https://doi.org/10.1080/10810730.2026.2673055
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