The biodynamic responses of the hand-arm system under x(h)-axis vibration are investigated in terms of the driving point mechanical impedance (DPMI) and absorbed power in a laboratory study. For this purpose, seven healthy male subjects are exposed to two levels of random vibration in the 8-1,000 Hz frequency range, using three instrumented cylindrical handles of different diameters (30, 40 and...

Clinical applicability of spectroscopy combined with bruise modeling may be improved if bruises on the same anatomical position have similar values of model parameters. We first investigate if a group of bruises located on the medial arm and measured once, at variable ages of presentation, show similar spectroscopic properties as a single bruise measured in time. Second, we investigate if spect...

Postural conditions are known to affect hand use in many primate species. It remains to be examined how posture and task differences modulate, or interact with, hand use in common marmosets (Callithrix jacchus). Three experimental conditions were introduced to assess the occurrence of preferential hand use as a function of posture and size of aperture for the subjects to grasp and retrieve the ...