Differences in Ia proprioceptive input to spinal motoneurons between male and female rats

The aim of this study was to investigate whether apparent sex differences in body mass and muscle force influence the proprioceptive input from muscle spindles to motoneurons. Medial gastrocnemius motoneurons were investigated intracellularly in deeply anesthetised male and female rats. Monosynaptic Ia excitatory postsynaptic potentials (EPSPs) were evoked using electrical stimulation of primary afferent homonymous muscle fibres. The dataset contains a list of all rats and motoneurons, and all electrophysiological parameters measured during intracellular recordings.