You’ll burn about 100 calories doing 500 jumping jacks a day , and it only takes about 2 minutes to knock out each set of 100 jacks, so that’s 10 minutes TOTAL for the day.20 May 2011
You’ll burn about 100 calories doing 500 jumping jacks a day , and it only takes about 2 minutes to knock out each set of 100 jacks, so that’s 10 minutes TOTAL for the day.20 May 2011