Pop quiz: Can you name the most important muscle in your body? Nope, it's not your abs, hamstrings or triceps. It's your heart!
The human heart is an amazing muscle, capable of pumping about five quarts of blood throughout the body every... Read more
Want to boost your fitness level and burn more calories? This program uses intervals (short bursts of higher-intensity activity followed by lower intensity recovery periods), which can be a more effective way to train than exercising at one intensity... Read more
This walking program uses intervals (short bursts of higher-intensity activity followed by lower intensity recovery periods), which can be a more effective way to train (and burn calories) than exercising at one intensity level. If you're new to... Read more
One of the most common mistakes new exercisers make is not measuring the intensity of their cardio workouts. Guidelines say that aerobic exercise should be “moderate” or “challenging,” but what does that feel like? You might m... Read more
I used to be a competitive long distance runner. Day in and day out I’d run mile upon mile, training for the next big race. Some days it meant running a six or seven mile loop that included several (seemingly endless) hills. Other days, I warme... Read more
I have had to google the proper name for some workouts that I have done because they don't show up in the list to track otherwise. I did one that even by proper name did not and I had to guess about the calories that it burned.... Read more
I'm extremely new to working out but I've been doing C25K so I've been walking/running but I've added in walking/walking backwards. I'm trying to alternate days doing these two activities but I think I would benefit from additional exercises. I was t... Read more
Let me explain. I workout 3 times a week doing HIIT plus training for 30 minutes to an hour. The remaining days I can squeeze in a low impact workout but only about 15 to 20 minutes. I want to do something that will make me sweat but that's low impac... Read more
I have started here on Spark and the first few days when I did the daily report it stated that I under did potasium, Magnesium, and calcium. I had not done any of the meal plans the site offeres during those days. So today I showed the meal plans an... Read more
I did a fitness test on one of my Kinect games and at the end they have you check your heart rate for 10 seconds. It was the basic fitness test of 1 min of sit ups, 1 min of push ups, and 1 him of jumping jacks. When I checked my heart rate after the... Read more
Use the plateau to take a long, hard look at your exercise routine and your nutrition.Are you skipping workouts? Make sure you're getting you're doing your workout's as planned.Have the workouts become easier for you to do? Increase the intensity, b... Read more
My gym offers a class based on just doing plyometrics; short/high intensity intervals of running, jumping jacks, mountain climbers, lounges...you name it. For 50 minutes our heart rate is HIGH. Though it is a TOUGH workout and sometimes hard to keep... Read more
What if I told you there was an exercise technique that could burn more calories—and fat—in less time that was also fun? You may think that I was hawking some fitness gadget in an infomercial, or simply lying to you, but neither of those... Read more
Walking is an excellent way to start getting fit because it costs little to nothing and can be done almost anywhere and by just about anyone. (Learn more about the health and fitness benefits of walking.) So how do you begin with a walking program? H... Read more
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