Effects of Low, Moderate, and High Intensity Exercise on Functional Impairment and ADHD Symptoms: A Randomized Pilot...

Area of Science:

• Exercise Science
• Neuroscience
• Clinical Psychology

Background:

• Exercise is known to improve cognitive functions, particularly in children with ADHD.
• Research on exercise's effects on adult ADHD symptoms and optimal intensity is limited.
• Previous studies suggest moderate and high-intensity exercise may benefit ADHD symptoms.

Purpose of the Study:

• To assess the feasibility of an exercise intervention for college students with ADHD symptoms.
• To compare the effects of low, moderate, and high-intensity exercise on ADHD symptoms in adults.
• To identify the optimal exercise intensity for managing ADHD symptoms in a young adult population.

Main Methods:

• A randomized controlled trial was conducted with 33 college students diagnosed with ADHD symptoms.
• Participants were assigned to low, moderate, or high-intensity cycling groups for 20-minute sessions over one week.
• The high-intensity group performed short bursts of maximal effort interspersed with low-intensity recovery periods.

Main Results:

• Overall functional impairment and symptom severity decreased significantly across all groups.
• Low and moderate-intensity exercise showed significant reductions in inattentive symptoms.
• Low and moderate-intensity exercise improved impulsive symptoms, while moderate intensity specifically reduced hyperactivity.

Conclusions:

• The exercise intervention proved feasible for college students with ADHD symptoms.
• Moderate-intensity exercise demonstrated the most consistent and widespread benefits across various ADHD symptom domains.
• Exercise, particularly at moderate intensity, is a promising non-pharmacological approach for managing adult ADHD.