Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:The range of the peak latencies in all studied muscles was consistent with the values reported in studies of human walking (Duysens et al. 1996; Van Wezel et al. 1997) and running (Tax et al. 1995).
Category: