There was a trend of mean difference ( MD ) for the experimental group to have more grip strength by six ( MD @ N , @ % confidence interval ( CI ) -@ to @ , p = @ ) and @ ( MD @ N , @ % CI -@ to @ , p = @ ) weeks , and to have a higher quantity of hand function according to carers ' perception by six ( MD @ N , @ % CI -@ to @ , p = @ ) and strengthened by @ ( MD @ , @ % CI @ to @ , p = @ ) weeks than the control group .