This study will employ a multi-centre, randomized, wait-list controlled trial. A total of 30 participants (15 experimental, 15 wait-list control) between 18-65 years of age who have chronic SCI ≥ 1 year prior will be recruited. Physical activity measures will be taken using wrist-based accelerometers and the Physical Activity Recall Assessment for Persons with SCI. Psychosocial factors will be evaluated through questionnaires. The primary health outcome measure (aPWV), and secondary cardiovascular parameters will be assessed using a combination of echocardiography and ultrasound. Fitness will be determined using a peak oxygen consumption test on an arm-cycle ergometer. All measurement will be taken at baseline and after 9 weeks following intervention commencement. Physical activity will also be sampled mid-intervention at 4 and 7 weeks. For the wait-list control group, an additional measurement time point will be added after they have received the intervention upon completion of the control period. Training will involve weekly, 10-15 minute coaching sessions for 9 weeks. All pre- and post-assessments will take place at the Blusson Spinal Cord Centre at ICORD or the University of British Columbia Okanagan. Intervention content will be delivered over Skype or phone, and the wrist- worn accelerometers will be delivered and picked up from the participant's home during the intervention.