Anxiety Sensitivity Uniquely Predicts Exercise Behaviors in Young Adults Seeking to Increase Physical Activity.
Fear of racing heart or sweat predicts who will quit an exercise goal within a week.
01Research in Context
What this study did
The team asked 127 college students to set a goal to exercise more.
Everyone filled out a short anxiety-sensitivity scale that asks how much they fear racing heart, sweat, or shortness of breath.
One week later the researchers counted how many minutes each student had actually worked out.
What they found
Students who scored high on anxiety sensitivity exercised about half as much as their low-scoring peers.
The link stayed strong even after the team controlled for how active each student was before the study.
In plain words, fear of bodily sensations killed the follow-through.
How this fits with other research
Bouck et al. (2016) saw the same age group and the same fear pattern: students with asthma who worried about bodily cues panicked more during a straw-breathing test.
Together the two papers show that anxiety sensitivity makes young adults avoid anything that feels like shortness of breath—exercise or lab challenge.
Liu et al. (2025) looked from the other side and found that more exercise lowers suicidal thoughts in teens with ADHD.
The studies do not clash; they simply draw opposite arrows on the same map—fear stops movement, movement eases mood.
Why it matters
If a client says “I hate how my heart pounds,” do not just cheer-lead.
Add short, low-sensation movement first—walks, light weights, brief bouts—then shape tolerance for faster heartbeat.
Pair the activity with interoception labels: “That pound means your engine is warming up.”
You will turn fear into a cue for success instead of a stop sign.
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02At a glance
03Original abstract
Individuals with elevated levels of anxiety sensitivity (AS) may be motivated to avoid aversive emotional or physical states, and therefore may have greater difficulty achieving healthy behavioral change. This may be particularly true for exercise, which produces many of the somatic sensations within the domain of AS concerns. Cross-sectional studies show a negative association between AS and exercise. However, little is known about how AS may prospectively affect attempts at behavior change in individuals who are motivated to increase their exercise. We recruited 145 young adults who self-identified as having a desire to increase their exercise behavior. Participants completed a web survey assessing AS and additional variables identified as important for behavior change-impulsivity, grit, perceived behavioral control, and action planning-and set a specific goal for exercising in the next week. One week later, a second survey assessed participants' success in meeting their exercise goals. We hypothesized that individuals with higher AS would choose lower exercise goals and would complete less exercise at the second survey. AS was not significantly associated with exercise goal level, but significantly and negatively predicted exercise at Time 2 and was the only variable to offer significant prediction beyond consideration of baseline exercise levels. These results underscore the importance of considering AS in relation to health behavior intentions. This is particularly apt given the absence of prediction offered by other traditional predictors of behavior change.
Behavior modification, 2016 · doi:10.1177/0145445515603704