Abstract
This investigation examined the possible psychometric confounds of interpreting exercise-induced symptom reporting as changes in stete anxiety. Thirty male subjects exercised on a motor-driven treadmill for 15 min at 75% of maximum heart rate reserve. Prior to» during, and following the exercise, subjects responded to short forms of Spielberger's State Anxiety Inventory (SAI), Thayer's Aetivation-Deactivation Adjective Check List (AD-ACL), Borg's Rating of Perceived Exertion (RPE) scale» and a measure of affect. Preliminary results indicated that following 10 min of recovery from exercise» SAI scores were lower than baseline responses. Upon former analysis of individual SAI items, however, it was evident mat changes occurring in total SAI scores as a result of exercise were strongly influenced by changes in energetic arousal and general deactivation. This conclusion was supported by data from the AD-ACL as well as responses to postexperimental interviews. These findings cal into question the construct validity of the SAI and related state measures (e.g., the Profile of Mood States» or POMS) when used in conjunction with acute bouts of vigorous physical activity.
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