SWI (Swimming Index)

The SWI (Swimming Index) is a measure used to evaluate a swimmer's efficiency and performance. It is calculated by multiplying the distance traveled by the stroke frequency and dividing the result by 1000. This provides an indication of the swimmer's ability to combine speed and endurance in the water.

The SWI formula takes into account two important factors: distance traveled and stroke frequency. Distance refers to the length of the pool or course swum, while stroke frequency is the number of movements made by the swimmer per unit of time. By dividing the product of these two factors by 1000, the SWI provides a measure that can be used to compare the performance of different swimmers.

The SWI is particularly useful for coaches and swimmers who want to monitor progress and adjust training to improve efficiency and performance. It can be used in different swimming styles and is a valuable tool for evaluating technique and endurance.

When using the SWI, it's essential to be careful with measurement accuracy, ensuring that distance and stroke frequency are recorded correctly. Additionally, it's crucial to consider the conditions under which the SWI was calculated, as factors like water temperature and swimming technique can influence the result.