Fig. 3

Nine Hole Peg Test (9HPT) for non-dominant hand. Best (a) and average (b) times for non-dominant hand. The 9HPT is an evaluation of arm/upper extremity functionality or disability. A reduction in the test time from the reference time point signifies an improvement of upper extremity function. N = 20 at 1 month (same as baseline), N = 19 at 1 year. Statistically significant changes between time points are indicated with their p-values. Error bars represent standard deviations