Fig. 3From: Validity and reliability of wearable inertial sensors in healthy adult walking: a systematic review and meta-analysisForest plot of data pooling for spatiotemporal mean validity. Squares represent Pearson correlation coefficients and bars indicate 95% confidence intervals, with diamonds as pooled data. Methodological quality of each study is indicated by colour: HQ = green, MQ = yellow, LQ = orange, and VLQ = redBack to article page