Jumping jacks provide an excellent source of cardiovascular exercise, raising your heart rate quickly and helping you burn calories. However, burning calories isn't the same thing as burning fat; to do that, you must watch your diet and monitor how many calories you eat compared with how many you burn with jumping jacks. Always consult your doctor before beginning this or any exercise regimen.
Burning Calories vs. Fat
To lose a pound of fat, you must burn about 3,500 more calories than you take in. If you're eating 1,500 calories per day and only burning 100 calories per day with jumping jacks, it could take more than a month to lose a pound of fat. Cutting your diet to 1,200 calories combined with the jumping jacks means a difference of 400 calories per day, bringing you just over the week mark for losing a pound. The key is to eat healthy, including whole grains, low-fat dairy, lean meats and fruits and vegetables. Always talk to your doctor to make sure the diet and exercise choices are right for you.
How Many Calories You Torch
Several factors affect how many calories you burn doing jumping jacks, including your weight and how long you perform the exercise. For example, a 125-pound person doing jumping jacks for 20 minutes can burn up to 85 calories, while a 175-pound person could burn up to 119 calories. If the 125-pound person does an hour of jumping jacks, he's burning up to 255 calories -- getting him that much closer to burning a pound of fat.