Nassif and colleagues note the importance of physical activity in the treatment of low back pain (LBP) and, therefore, conducted a randomized controlled trial to assess the effects of a workplace physical activity and exercise intervention. Seventy-five French automotive assembly workers with LBP were randomized into 2 groups. Half took part in a 3 times/week, 2-month supervised strengthening and endurance program while the remainder continued with their usual activities. Evaluation at the end of training and follow-up 4 months later revealed significant decreases in perceived pain, work disability, and fear of reinjury as well as improvements in back function and maintenance of increased activity in favor of the intervention group. The authors suggest that their findings support the benefits of physical therapy workplace interventions for those with LBP. Muscle Changes Following Cycling and/or Electrical Stimulation in Pediatric Spinal Cord Injury Electrical stimulation (ES) is a mainstay in our efforts to counteract the muscle atrophy and deconditioning that accompany spinal cord injury (SCI). Johnston and colleagues addressed the nature of its application in a randomized trial involving 30 children with SCI. Subjects were randomized into 3 groups; one-third received functional electrical stimulation enhanced cycling (FESC), one-third ES alone and the remainder passive cycling during a 3 times/week, 6-month home program. Evaluation at the completion of training revealed changes in both ES groups with the ES-alone group exhibiting the largest increase in quadriceps volume and the FESC group the largest increase in quadriceps strength. The authors conclude that both ES approaches are capable of producing presumably beneficial changes in muscle strength or mass.