by PWeekly | Oct 24, 2016
Chronic low back pain is a highly prevalent and disabling musculoskeletal pain condition, especially among older adults. Transcutaneous electrical nerve stimulation (TENS) is a treatment option for this pain, but few studies have assessed how older adults respond to TENS when compared with younger adults. TENS uses a small battery-powered machine to deliver low-volt electrical current through electrodes placed on the skin. It is believed that TENS activates the same receptors in the brain and spinal cord that are targeted by opioid analgesic medication. As with pain medication, the benefit of TENS is greatest during its application period. “TENS has been available for about 40 years, but recent research suggests a stronger amplitude may be needed” explains Corey B. Simon, DPT, PhD. “TENS is a safe, conservative treatment that is relatively inexpensive and under the current recommended parameters may be comparable to drug treatment.” Examining Effectiveness In a study published in the Journal of Pain, Dr. Simon and colleagues evaluated the effectiveness of TENS on 60 adults with lower back pain among adults aged 18 to 79. The participants were divided by age group, with 20 being considered young, 20 being middle-aged, and 20 being older. Recipients underwent four 20-minute sessions of TENS therapy over 3 weeks. An important aspect of the study was that the dose of TENS was based on the perception of “strong, yet tolerable.” Episodic or immediate relief of axial chronic low back pain was assessed after TENS using measures of resting pain, movement-evoked-pain, and self-reported disability. Cumulative or prolonged relief was assessed by comparing daily pain reports across sessions. In addition, Dr. Simon...
