Fig. 2

The evolution over time of changes in handgrip strength and the effect of type of anaesthesia. Mean and standard deviation of handgrip strength are shown on different time points as a percentage relative to baseline being the preoperative values and this for the different types of anaesthesia. P-values indicate the relative difference between the two types of anaesthesia on the different time points. GA general anaesthesia, SA spinal anesthesia, MIP maximum inspiratory pressure