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Exercise Logs

March 7, 2014 By ETC Lab

Find Your Target Heart Rate

Elliptical_HRDisplay

When you begin to use an aerobic exercise machine, you should do so with purpose. Have a goal in mind! You can start by targeting your optimal heart rate. After a few practice attempts with the machines, you should be able to find the right intensity level that allows you to stay within your target range.

We want you to exercise at a moderate intensity or approximately 55-60% of your maximum heart rate (HR). This is a generic guideline that must be individually-tailored based on your age. You can calculate this yourself. Try this formula:

Max HR = [ 220 beats per minute – your age ]

For example, if you are 50 years old, you would calculate 220-50 = 170. In theory, 170 is your max HR or the max total number of heart beats per minute (BPM) you can achieve. We recommend that you aim to maintain a level of 55-60% of your Max HR for the duration of your workouts. Specifically, for a 50-yr-old, that’s between 94 to 102 BPM.

The best way to measure your HR is to take your own pulse for 10 seconds and multiple by 6 to get an estimation of your current BPM. You can use the sensors on the machines but they tend to be inaccurate (e.g., occasionally off by as much as +/- 40 BPM). You may want to purchase an HR monitor. Watches with chest straps (e.g., Polar, Nike) are usually fairly accurate.

During your early sessions, we expect that you might reach 60% relatively quickly. This will happen for any previously inactive adults (>3 months) engaging in moderately intense exercise. It will take time to build your aerobic endurance. Be patient and simply do the best you can. As you develop a regular aerobic exercise routine, in several weeks, you should find that you can do more and your HR may become less sensitive to exercise (a signal of increased fitness). Some of you may be able to consistently exceed 55-60%, without feeling fatigued. This just means you have better aerobic capacity and perhaps you have had years of prior experience. After a brief 3-5 minute warm-up we encourage you to at least maintain 55-60% throughout your workout. If you want to do more, that’s up to you.

Important Advice

Keep in mind that many things can affect HR, including prior physical activity (e.g., stairs), medications, caffeine consumption, and stress. All of these should be considered while adjusting your exercise intensity level. For example, you may be taking BP medication and unable to elevate your HR. If this situation describes you, don’t try to compensate lack of HR change by increasing your intensity level.

Simply try to make the most out of your aerobic sessions. You should “feel it” but you may or may not sweat. You should be able to talk briefly while exercising, but long conversations with the person next to you may bring down your intensity level. The best way to do this is to find your target HR and monitor it. Just don’t stress if it goes a little above or stays below despite your hard effort.

Advice to all: Move at a pace that’s comfortable but that provides an optimal challenge.

Filed Under: Blog, Tips

March 2, 2014 By ETC Lab

Exercise Tip #1 – Jump In, Slowly

All of you joined this exercise program because you have specific goals related to improving your fitness or overall health. If you have not already set some short and long-term goals for this exercise program, do that now! Give some thought as to how much work you must commit to in order to achieve your goals. And remember, you will not see changes overnight. Too often, we find that adults believe they can find a short-cut to weight loss, increased strength or endurance. This inevitably leads to physical soreness, mental fatigue, exhaustion/dehydration, and sadly, more serious injuries.  You can avoid overuse by following our recommendations. Strenuous activity does not just mean lifting weights that are “too heavy.” Any type of physical activity can lead to severe muscle soreness (and injury). You can also walk too fast, too far, or lift a relatively light weight too many times. If you have never exercised in a systematic way, you should not rush through this program. Be mindful of the physical activity you have done and will be doing. We don’t go from “couch potato” to “marathon runner” in a week. Our educational modules will provide more information on the physiological changes you can expect. We expect you to be open and to try new things on your own. Everyone needs recovery time following exercise. If you follow our recommendations, you will minimize the total recovery time you will need.

So go slow! Do not try too much, too soon.

Filed Under: Blog, Tips

January 10, 2013 By ETC Lab

Fitbit Tutorial

The ETC Lab provided you with a device called the Fitbit® for tracking your daily physical activity. This includes the number of steps you have taken, distance you have traveled, floors you have climbed, calories you have burned and more. For detailed instructions on setting up the device and syncing with your personal computer, please visit our step-by-step instructions here.

 

Filed Under: Blog, Study Info

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All Copyright Reserved 2013. Exercise, Technology, & Cognition Laboratory. University of Illinois at Urbana-Champaign.