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. 2011 Sep 13;6(9):e23027. doi: 10.1371/journal.pone.0023027

Figure 1. A typical example of GPS processed speed data obtained from a prescribed outdoor walking protocol, both for the DG100 and the GPS60.

Figure 1

The entire PWP is not represented on the graph to simplify the figure. The period represented on the graph lasts ∼24 min (from minute 34.2 to minute 58.3).