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Table 4 Summary of validity properties of ZB

From: Psychometric properties of the Zephyr bioharness device: a systematic review

Study Criterion measure Testing protocol Mean diff. r/rs
Johnstone et al. (2012a). [24] Polar-T31. Treadmill – Walking and Running −3.80 0.89
Johnstone et al. (2012). [1] Polar-T31 Walk-Jog-Run   
All Velocities 0.00 0.98
4–6 km/h 1.30 0.92
8–10.5 km/h − 0.70 0.93
11.0 km/h −2.10 0.67
Kim et al. (2013). [25] 12-Lead ECG Treadmill running 3.20 0.87
Flanagan et al. (2014). [27] 5 Lead ECG Cycle ergometer   
Rest 1.00 ≥0.99
12- Stages 0.00 ≥0.99
Recovery 2.00 ≥0.99
Dolezal et al. (2014). [28] 12 Lead ECG Treadmill Walk 0.04 0.99
Search (Crawl) − 0.01 0.99
Stairs −0.13 0.99
Fast walk 0.03 0.99
Smith et al. (2014). [29] 3 Lead ECG Treadmill Walk −0.40 0.99
Search (Crawl) −1.70 0.95
Stairs 0.40 0.99
Gatti et al. (2014). [26] 5 Lead EKG Sitting −0.78 0.99
Thoracic rotation. −0.77 0.98
Arm Lifting. 0.22 0.94
Batting. −2.51 0.76
Weight moving. −4.81 0.78
Walking. −1.68 0.74
Rawstorn et al. (2015). [22] 12 Lead ECG Treadmill Running −1.30 0.92
Treadmill, Cycle Ergometer and Activities of daily living; sweep and vacuum −1.45 0.97
  1. ZB zephyr bioharness, Mean diff mean difference, r Pearson’s correlation coefficient, r s spearman’s rank correlation