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<\/p>\nA new study shows how targeted resistance exercise may preserve physical performance\u2014especially in older people with declining nerve function<\/p>\n
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(Photo: Ayana Underwood\/Canva)<\/p>\n
Published October 21, 2025 03:00AM<\/p>\n
As we age, our body\u2019s nervous system starts to slow down<\/a>. The nerves that tell our muscles to move don\u2019t fire as quickly. That decline can shape how we move, react, and perform.<\/p>\n Resistance training has long been known to preserve muscle and even help restore nerve function after injury<\/a>, but whether it can speed up nerve conduction in healthy adults has never been tested\u2014until now.<\/p>\n A new study<\/a> published this month in the journal Medicine and Science in Sports and Exercise (MSSE) tested the boundaries of our nervous system\u2019s aging, and whether age-related neural decline can be slowed with regular strength training.<\/p>\n Results Showed That Resistance Training Improved Nerve Signal Speed<\/p>\n Forty-eight healthy, younger (between 18 and 35), and older adults (over 60) took part in the study. Each age group was divided into a training group and a control group.<\/p>\n Those in the training groups completed a four-week program to increase handgrip strength. Those in the control group were simply asked to maintain their normal daily activities throughout the study and were not assigned any strength programming.<\/p>\n After four weeks, both groups were re-tested to see whether consistent grip training could speed up nerve signaling\u2014and whether age made a difference.<\/p>\n How Did They Test the Impact of Resistance Training on Nerve Signal Speed?<\/p>\n Before and after the experiment, researchers measured nerve conduction velocity (NCV)\u2014which refers to how quickly electrical signals travel along a motor nerve\u2014and grip strength. They did this by applying small electrical pulses along the median nerve<\/a>\u2014which runs from the forearm to the hand\u2014and recorded how quickly the signal reached a muscle farther down the line.<\/p>\n While the control groups saw no change in NCV, both young and older participants who performed the handgrip program showed faster nerve conduction speeds. The researchers shared, \u201cWe did not expect the magnitude of adaptations,\u201d especially given the short time frame.<\/p>\n Interestingly, the older adults\u2019 nerve improvements outpaced what\u2019s typically seen in muscle growth or strength with age\u2014suggesting that neural tissue itself may be capable of meaningful change through a resistance training<\/a> program.<\/p>\n The Link Between Resistance Training and Nerve Health\u00a0<\/p>\n The big idea represented in this study is a pattern that repeats itself over and over in human physiology\u2014tissues adapt themselves to the stresses placed on them. In that way, faster nerve impulses is not a surprising adaptation to resistance training, and it shows us that improvements in nerve health are distinctly measurable and correlate with the load we subject our bodies to.<\/p>\n Limitations of the Study<\/p>\n There were a few limitations of this study to be aware of: the training period lasted just four weeks\u2014short enough that older participants may not have had time to show strength gains, people self-reported their training which could lead to less accurate training logs, and program parameters leaned more toward endurance than pure strength work, with lighter weights and longer holds instead of heavy, low-rep work.<\/p>\n Additionally, most participants were women, and the grip strength exercises were limited to the forearm and hand, suggesting that the effects on other body regions are implied, but not technically known.<\/p>\n What This Means for Longevity<\/p>\n These findings offer meaningful clinical insight into how targeted exercise can enhance longevity<\/a>\u2014especially for individuals with declining or impaired nerve function.<\/p>\n As the researchers concluded, \u201cResistance training may be a robust way to counteract NCV deficits\u201d\u2014a promising signal that the nervous system might be just as trainable as the muscles it controls.<\/p>\n Does This Mean That You Need to Incorporate Resistance Training Into Your Workouts?<\/p>\n If you are interested in enhancing not only strength, but also nerve conduction, the answer from this study is an emphatic yes.<\/p>\n The easiest way to begin would be to incorporate large, full-body movements<\/a>, such as squats, dead lifts, bench press, under heavy weights\u2014think eight reps or less before you begin to fail. Do this for three sets and aim for completing this on two, non-consecutive days per week.<\/p>\n