The objective of the present study was to examine the effects of music and music-video on core affect during and immediately after stationary cycling at the lactate threshold. A randomized, fully counterbalanced, crossover design with three conditions (music, music-video, and a no-music-video control) was adopted. Twenty-four participants exercised at lactate threshold while exposed to music, music-video, and control conditions. Affective valence and perceived activation were assessed every 2 min during a 20-min exercise bout and every 5 min post exercise over a 20-min period. Results indicated that there was a significant condition x time interaction for affective valence. The music-video condition elicited the highest levels of affective valence followed by the music condition and control. There was a main effect of condition for affective valence, wherein the experimental conditions facilitated significantly higher affective valence than control. Significant main effects of time emerged for both affective valence and perceived activation. Regardless of condition, affective valence decreased during the exercise bout and increased immediately post exercise. Conversely, perceived activation increased during exercise and decreased immediately post exercise. The present findings indicate that music and music-video can enhance core affect during exercise at the lactate threshold and the implications for exercise adherence are expounded.

Stereotypes are defined as beliefs about the attributes associated with a group and prejudice is defined as a negative attitude or evaluation of a group (Dovidio, Brigham, Johnson, & Gaertner, 1996). It is often presumed that stereotypes like "members of Group A are dirty, hostile, lazy,. . ." should lead to prejudice such as "I don't like A's" (Smith, 1993, p. 299). However, the literature is inconsistent in support of a close relationship between the constructs of stereotyping and prej

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