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Table 1 Average errors and standard deviations of the socket-ball estimation as a function of the flexion angle (tests on five subjects, five times)

From: A bi-articular model for scapular-humeral rhythm reconstruction through data from wearable sensors

Flexion angle Error (cm)
0.2±0.2
20° 1.2±0.6
40° 4.2±1.6
60° 6.4±0.9
80° 7.2±0.6
100° 8.2±0.7
120° 10.0±0.9