Neurophysiological parameters obtained after walking on a treadmill in different conditions
This data set comprises 142 txt files containing independent variables from experiments consisting in walking in different conditions over a treadmill, such as parameters from H-reflex recruitment curve, presynaptic inhibition, speed, intensity of stimulation, mean arterial pressure, heart rate, and subjective perceived exertion.
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Data were collected before (PRE), 10 min after (POS-1), and 45 min after (POS-2) able-bodied participants walking on a treadmill for 20 min in 4 different conditions: 1) Backward walk (BW); 2) Downward walk (DW); 3) BW with 20% weight support (BW-20); 4) DW with 20% weight support (BW-20). Amplitude parameters were obtained from a sigmoidal fit of the the soleus H-reflex recruitment curve (Hth, H50, H100, and Hmax), as well as the respective current intensities. The slope of the sigmoid was also estimated. The respective values of 15 participants are organized in columns of the *.txt files. Heart rate (HR) and the subjective perceived exertion (SPE) were measured at 5, 10, 15, and 20 min during each walking task, so the files are organized in 4 columns. The mean arterial pressure (MAP) was calculated from the blood pressures measured in each condition. The presynaptic inhibition level (D1 and D2 inhibitions) was evaluated in 11 out of 15 participants in each condition. The speed of the treadmill was achieved when the participant reached 3 to 4 SPE (a scale that goes from 0 to 10).