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Introduction: Interval exercise training can elicit physiological adaptations similar to those of traditional endurance training, but with reduced time. However, the intense nature of specific protocols, particularly the "all-out" efforts characteristic of sprint interval training (SIT), may be perceived as being aversive. The purpose of this study was to determine whether listening to self-selected music can reduce the potential aversiveness of an acute session of SIT by improving affect, motivation, and enjoyment, and to examine the effects of music on performance. Methods: Twenty moderately active adults (22 ± 4 yr) unfamiliar with interval exercise completed an acute session of SIT under two different conditions: music and no music. The exercise consisted of four 30-s "all-out" Wingate Anaerobic Test bouts on a cycle ergometer, separated by 4 min of rest. Peak and mean power output, RPE, affect, task motivation, and perceived enjoyment of the exercise were measured. Mixed-effects models were used to evaluate changes in dependent measures over time and between the two conditions. Results: Peak and mean power over the course of the exercise session were higher in the music condition (coefficient = 49.72 [SE = 13.55] and coefficient = 23.65 [SE = 11.30]; P < 0.05). A significant time by condition effect emerged for peak power (coefficient = -12.31 [SE = 4.95]; P < 0.05). There were no between-condition differences in RPE, affect, or task motivation. Perceived enjoyment increased over time and was consistently higher in the music condition (coefficient = 7.00 [SE = 3.05]; P < 0.05). Conclusion: Music enhances in-task performance and enjoyment of an acute bout of SIT. Listening to music during intense interval exercise may be an effective strategy for facilitating participation in, and adherence to, this form of training. [ABSTRACT FROM AUTHOR]

Community-based organizations (CBOs) and support personnel that serve marginalized members of society have the potential to be important partners in knowledge mobilization (KM). A CBO in partnership with researchers developed an event-based KM initiative to disseminate evidence-based physical activity guidelines for people with spinal cord injury. Purpose. The purpose of this case study is to demonstrate a) how a CBO can implement a KM initiative and b) the effectiveness of the initiative for disseminating the guidelines to support personnel. Method. The KM initiative consisted of 12 events about the new guidelines held within the CBO’s regional areas. Evaluation of the events was guided by the RE-AIM (reach, efficacy or effectiveness, adoption, implementation, and maintenance) framework. Results. Adoption of the events was high, with 88% of regions hosting an event. Overall fidelity to the event protocol was high among researchers (100.00% ± .00), peers (65% ± 33.74), and staff (70.00% ± 34.96). The events reached 140 support personnel who attended the events. Significant increases in support personnel’s self-efficacy and intentions to promote physical activity to people with spinal cord injury were seen at Time 2 but not maintained at Time 3. Conclusions. Event-based KM initiatives may be an effective strategy for CBOs to disseminate information to support personnel and ensure that KM initiatives are supported by staff and delivered as intended. [ABSTRACT FROM PUBLISHER]