On the relationship between advanced glycation end-products (ages) and surface emg on lower limb muscles in elderly persons

A skin autofluorescence is useful index to estimate the accumulation of advanced glycation end products (AGEs) as a non-invasive assessment. The purpose of this study was to estimate the relationship between the skin autofluorescence (AF) and the muscle activities of the lower limb in the elderly persons. We measured the skin AF of five places on the lower limb, and the surface EMGs from the eleven muscles on that, simultaneously. The waveforms of surface EMG were analyzed by Daubechies-4 wavelet transformation. The skin AF was increased in the proximal part of the lower limb compared with the distal part of that. The principal component of frequency band of the surface EMG was lower in the proximal part compare with the distal part. There was a weak correlation between the skin AF and the frequency of surface EMG on the lower limb in elderly persons.