Regarding the issue of exercise duration?
Hello Dr.
Bu,
I am currently 28 years old and have no history of heart disease.
My exercise routine consists of working out every other day for about an hour and a half each time.
The main activity is brisk walking, with some segments where I alternate between brisk walking and jogging, although brisk walking is still the primary activity.
I would like to ask if this level of exercise places too much strain on my heart.
Thank you for taking the time to answer my question!
Jun Jie, 20~29 year old female. Ask Date: 2008/09/14
Dr. Bu Shiyun reply Cardiology
The following is based on personal experience.
For individuals under 35 years old, exercising for an hour and a half each session is acceptable.
For those aged 35 to 45, about one hour is sufficient, while for individuals over 50, half an hour is adequate.
Generally speaking, excessive exercise is not primarily due to the heart being unable to handle the load, but rather because the knee joints are prone to degeneration or injury.
On one hand, it is important to exercise to maintain good physical fitness and cardiovascular function; on the other hand, one must also consider the usage of the joints, as, on average, your joints need to function for 80 years.
Reply Date: 2008/09/14
More Info
It's great to hear that you are actively engaging in a regular exercise routine! At 28 years old and without a history of heart disease, your current exercise habits of alternating between brisk walking and slow jogging every other day for about an hour and a half are generally considered beneficial for heart health. However, it's important to understand how exercise affects your heart and what signs to watch for.
When you exercise, it's normal for your heart rate to increase. This is your body's way of delivering more oxygen-rich blood to your muscles. For most individuals, a heart rate that reaches 70-85% of their maximum heart rate during exercise is considered a safe and effective range for cardiovascular fitness. The maximum heart rate can be roughly estimated by subtracting your age from 220. For you, that would be around 192 beats per minute (bpm). Therefore, during exercise, a heart rate of around 135-163 bpm would be typical for you.
Since you mentioned that you primarily engage in brisk walking with some slow jogging, this combination is excellent for building cardiovascular endurance without placing excessive strain on your heart. Brisk walking is a low-impact exercise that can help improve heart health, while slow jogging can enhance your aerobic capacity. The key is to listen to your body. If you feel any discomfort, such as chest pain, excessive shortness of breath, or dizziness, it’s crucial to stop exercising and consult a healthcare professional.
Additionally, it's important to consider the following factors to ensure your exercise routine remains safe and effective:
1. Warm-Up and Cool Down: Always start with a warm-up to prepare your heart and muscles for exercise. Similarly, cooling down after your workout helps your heart rate gradually return to normal.
2. Hydration: Staying hydrated is essential, especially during longer workouts. Dehydration can lead to increased heart rate and decreased performance.
3. Intensity Monitoring: If you have access to a heart rate monitor, it can help you keep track of your heart rate during exercise. This way, you can ensure you are within a safe range.
4. Rest and Recovery: Allowing your body adequate time to recover between workouts is crucial. Overtraining can lead to fatigue and increase the risk of injury.
5. Consultation with a Healthcare Provider: Since you have no history of heart disease, you are likely at a lower risk, but it’s always a good idea to have regular check-ups, especially if you notice any unusual symptoms during or after exercise.
In summary, your current exercise routine seems appropriate for your age and health status. As long as you are not experiencing any concerning symptoms and are feeling good during and after your workouts, you are likely on the right track. However, always remain vigilant about how your body responds to exercise and consult with a healthcare professional if you have any doubts or experience any unusual symptoms. Keep up the good work, and enjoy your fitness journey!
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