1.Step 1-4 is similar to B, but “FITNESS TEST” program also requires age and sex of user.

5.Press ENTER key, (W2) displays “ENTER AGE” and (W1) displays preset age of last operation.

6.Set age of the exerciser by - keys.+

7. Press ENTER key, (W2) displays “SET SEX,”

8. Choose “MALE” or “FEMALE” by + - keys, (W1) displays MALE or FEMALE correspondingly.

9.Press ENTER key, (W2) displays “PRESS ENTER TO BEGIN”

10.Press ENTER key and start to exercise.

E. START MODE

1.Each column of (W2) represents one minute of operation when time is being counted up.

2.In (W2) presetting time value divided by 16 is equal to each column

when operation time is being counted down.

3.Press ENTER key to change the “SCAN” function in operation and the corresponding indication of “SCAN” will turn on or off.

-keys in operation4. The exerciser can adjust workout level by using +

except during “FITNESS TEST” program.

F. RESULT MODE

1.When operation time is finished, the console is in “Result state”, (W1) displays the following data in 4 second intervals.

a.Total operation time.

b.Cumulative calories.

c.Cumulative distance.

d.Average speed.

e.Average RPM.

2.W3 displays “average heart rate”

3.W2 displays “RESULTS MODE” and shows profiles of every program for 2.5 seconds sequentially, except in “FITNESS TEST” program.

4.W2 displays “SCORE=000” when “FITNESS TEST” Program is completed.

Monitoring Your Heart Rate

To obtain the greatest cardiovascular benefits from your exer- cise workout, it is important to work within your target heart rate zone. The American Heart Association (AHA) defines this target as 60%-75% percent of your maximum heart rate.

Your maximum heart rate may be roughly calculated by subtracting your age from 220. Your maximum heart rate and aerobic capacity naturally decreases as you age. This may vary from one person to another, but use this number to find your approximate effective target zone. For example, the maximum heart rate for an average 40 year-old is 180 bpm. The target heart rate zone is 60%-75% of 180 or 108-135 bpm. See Fitness Safety on page 22.

Before beginning your workout, check your normal resting heart rate. Place your fingers lightly against your neck, or against your wrist over the main artery. After finding your pulse, count the number of beats in 10 seconds. Multiply the number of beats by six to determine your pulse rate per minute. We recommend taking your heart rate at these times; at rest, after warming up, during your workout and two minutes into your cool down, to accurately track your progress as it relates to better fitness.

During your first several months of exercising, the AHA recommends aiming for the lower part of the target heart rate zone- 60%, then gradually progressing up to 75%.

According to the AHA, exercising above 75% of your maxi- mum heart rate may be too strenuous unless you are in top physi- cal condition. Exercising below 60% of your maximum will result in minimal cardiovascular conditioning.

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Keys Fitness CM850U owner manual Monitoring Your Heart Rate, Start Mode
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CM850U specifications

The Keys Fitness CM850U is a premium upright bike designed for fitness enthusiasts seeking an effective and enjoyable workout experience at home. This bike combines advanced technology, user-friendly features, and robust construction to provide a top-notch exercise solution for individuals of all fitness levels.

One of the standout features of the CM850U is its ergonomic design, which focuses on user comfort and proper posture. The adjustable seat accommodates different body types, allowing users to find their ideal position for pedaling. This thoughtful design minimizes the risk of strain and promotes longer workout sessions, making it suitable for both beginners and seasoned athletes.

The CM850U boasts a smooth and quiet magnetic resistance system that offers a wide range of resistance levels. This allows users to customize their workouts according to their fitness goals, whether they are aiming for endurance training or high-intensity sessions. The magnetic resistance ensures a seamless and quiet operation, making it suitable for use in any environment without disturbing others.

Equipped with a comprehensive LCD display, the CM850U provides users with real-time feedback on key workout metrics, including time, distance, speed, calories burned, and heart rate. The heart rate monitoring feature is particularly beneficial for those looking to optimize their workouts, as it allows users to stay within their target heart rate zones.

Another impressive aspect of the CM850U is its built-in workout programs. With multiple pre-set programs, users can easily switch up their routines to prevent plateaus and keep their workouts engaging. These programs are designed to challenge users and help them reach their fitness goals more efficiently.

For added convenience, the bike is engineered with transport wheels, making it easy to move and store when not in use. The sturdy frame construction ensures durability and stability during vigorous workouts, providing peace of mind for users while they focus on their training.

In conclusion, the Keys Fitness CM850U is an exceptional upright bike that embodies comfort, technology, and versatility. With its adjustable features, magnetic resistance, intuitive display, and diverse workout programs, it sets itself apart as a reliable fitness machine for home use. Whether you are looking to enhance your cardiovascular fitness or simply maintain an active lifestyle, the CM850U can be a valuable addition to your home gym equipment.
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