Boxing Gloves
By using the heavier gloves it could possibly improve speed, endurance and punching power. I think its kinda become common knowledge, sense and advice in all boxing gyms that if you train in 20oz all the time and then put a pair of 10 oz's on for your fight your hands are going to be lightening fast, but how many people have actually done this and can confirm it works!? i seem to have gone the opposite route and achieved above average speed . .