By dividing the population in subgroups with ‘normal muscle status’ and ‘at risk of sarcopenia’ based on mean TMT cutoff values, we found also a moderate association in the normal muscle group (0.521, P < .001) but a highly significant strong correlation between SMA and TMT measurements in patients at risk of sarcopenia (0.678, P < .001). Here, SMN1 is linked to sarcopenia.