en روانشناسی ورزشی و شاخه‌های وابسته بدان Sport Psychology and its Related Branches مقاله اصیل Original Article <div style="text-align: justify;"><strong>Background. </strong>Despite well-established evidence that high-intensity interval exercise (HIIE) promotes multiple health benefits across various populations, the effectiveness of this protocol, as opposed to moderate-intensity interval exercise (MIIE), on individual wellness and exercise motivation is unclear.<br> <strong>Objectives.</strong> The present study examined the effect of different work intensities on exercise motivation, health-related quality of life (HRQOL), and mental health in physically inactive college students.<br> <strong>Methods. </strong>Twenty-four inactive college students (aged 20.8&plusmn;1.2 years; PA levels=448&plusmn;80 MET-min/week) were randomized to 12 weeks of HIIE (n=12; 6-10&times;1-min work-intervals at 90% of MAS) or MIIE (n=12; 6-10&times;1-min work-intervals at 60% of MAS), both for three days in a week (36 sessions). All the parameters were measured before and after 12 weeks of exercise intervention.<br> <strong>Results. </strong>HIIE generated more significant improvement in anxiety and depression scores following a 12-week intervention compared to MIIE (all P<0.001, all ES>1.25). Also, the HIIE group elicited an improvement from baseline in overall HRQOL variables (all P<0.03, ES>0.50) compared to only two HRQOL variables in the MIIE group (all P<0.04, ES>0.30). A significant improvement in intrinsic and identified scores was observed after the HIIE intervention (all P<0.02, ES>0.57). In contrast, the MIIE group elicited more excellent external and amotivation scores following exercise intervention (all P<0.02, ES>0.71).<br> <strong>Conclusion. </strong>The present study&#39;s findings establish that the&nbsp;HIIE intervention seems more advantageous in promoting optimal wellness and self-determined motivation among physically inactive college students.</div> Interval Exercise, Exercise Motivation, Quality of Life, Mental Health, Self-Determined Motivation 0 0 http://aassjournal.com/browse.php?a_code=A-11-1972-3&slc_lang=en&sid=1 Ming Chang changming@student.usm.my 100319475328460014971 0009-0006-8356-4195 No Exercise and Sports Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia Adam Abdul Malik adamalik@usm.my 100319475328460014972 100319475328460014972 Yes Exercise and Sports Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia Hairul Anuar Hashim hairulkb@usm.my 100319475328460014973 100319475328460014973 No Exercise and Sports Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia