Master's Theses



Degree Name

Master of Science (MS)


An experiment was conducted to assess the effects of high and low breakfast protein content on activity level in the late morning hours. Six male first grade subjects received two different breakfasts. One breakfast was high in protein (Condition B) while the other breakfast was lower in protein and higher in carbohydrates with approximately one-third the protein content of the high protein meal (Condition C). During Condition A, baseline rates were obtained during which the subjects were free to eat what they wished. During Condition B, subjects ate the high protein breakfast and during Condition C they received the low protein meal. Three subjects participated in a BCBA design and the other three subjects in a CBCA design. Both meals contained approximately the same amount of calories. Activity level, as measured by the Ryabik-Farrall Activity Chair, was measured for five consecutive days under each condition or treatment. Rates were compared within subjects, within groups, and across groups. No significant differences were obtained when activity rates under high and low protein conditions were compared. The results of the present study give no clear indication of the role of breakfast protein in relation to activity level in the late morning hours.


James Ryabik

Date of Award

Spring 1977

Document Type

Thesis - campus only access


© 1977 Channing McAllister


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