Can tying sandbags improve the speed of 100 meters?

Yes, and tying sandbags won't affect your height.

The key to weight is the right strength, just jump up and feel suitable for yourself. In addition, if you tie it for a long time, such as a day or so, be careful when you take it off, it will float badly!

In addition, it is recommended not to jog and run long distances, but to sprint 50 meters every 200 meters, which will be better at intervals.

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