An analysis of start times by sprinters at the 2008 Beijing Olympics demonstrated that male and female sprinters can achieve reaction times of 109 and 121 ms in one out of 1,000 starts. The same analysis showed fewer false starts among the women and it suggests that the apparent sex difference is caused by the use of the same starting block force threshold for males and females. The authors calculated that were the force threshold to be reduced by 22% for females, to take into account their lower rate of developing muscle strength, then males and females would exhibit similar reaction times and numbers of false starts.