Other important limitations in the study were that the sample size, the number of the infants with the same age between the two groups and the days of massage were not sufficient to see the effect of massage on weight and height. A larger number of the infants with the same ages and longer days of massage would have been examined for weight and height. 1338 Journal of Korean Academy of Nursing Vol. 36, No. 8 In terms of future research directions, if the number of sample, the same ages, and the number of massage a day, and the days of massage will be increased, it may be rewarding to evaluate the efficacy of massage.