Table 3. Sensitivity analysis.

Study	Parameter	Before exclusion	After exclusion	Statistical significance
Braito et al.[14] (2016)	Vertical GRF	SMD = -0.08, 95% CI = -0.36 to 0.20, Z = 0.53, P = 0.60	SMD = -0.04, 95% CI = -0.36 to 0.29, Z = 0.22, P = 0.83	No difference
	Joint moment	SMD = 0.04, 95% CI = -0.55 to 0.63, Z = 0.13, P = 0.90	SMD = -0.09, 95% CI = -0.91 to 0.74, Z = 0.20, P = 0.84	No difference
	Kinematic results	SMD = 0.15, 95% CI = -0.72 to 1.02, Z = 0.34, P = 0.74	SMD = 0.83, 95% CI = -1.18 to 2.85, Z = 0.81, P = 0.42	No difference
	Spatiotemporal results	SMD = 0.32, 95% CI = 0.05 to 0.60, Z = 2.29, P = 0.02	SMD = 0.83, 95% CI = -1.18 to 2.85, Z = 0.81, P = 0.42	Difference
Wiik et al.[13] (2013)	Vertical GRF	SMD = -0.08, 95% CI = -0.36 to 0.20, Z = 0.53, P = 0.60	SMD = 0.21, 95% CI = -0.13 to 0.56, Z = 1.20, P = 0.23	No difference
	Spatiotemporal results	SMD = 0.32, 95% CI = 0.05 to 0.60, Z = 2.29, P = 0.02	SMD = 0.20, 95% CI = -0.11 to 0.50, Z = 1.26, P = 0.21	Difference

GRF, ground reaction force; SMD, standardized mean difference; CI, confidence interval