Understanding MET Levels

What is a MET?

MET, or Metabolic Equivalent, is a vital concept in healthcare that describes the energy cost of various activities. It is determined by the amount of oxygen required to perform a particular task. For instance, when you are seated in a chair, your body is utilizing 1 MET, which is equivalent to consuming 3.5 ml/kg/min of oxygen. Activities that exceed 1 MET represent multiples of your resting oxygen consumption rate.

Examples of MET Levels

Different activities require varying amounts of energy, which can be quantified in MET levels. Here are some examples:

– Seated in a chair: 1 MET
– Taking a shower: 3-4 METs
– Weeding: 2 METs
– Carrying grandkids: 6 METs
– Outdoor carpentry (e.g., building a fence): 6 METs
– Meditating: 1 MET
– Painting walls: 4.5 METs
– Cleaning gutters: 5 METs
– Walking at a slow pace (1-2 mph): 2 METs

Impact of MET Levels on Recovery

Individuals recovering from a cardiac event may find activities like showering particularly exhausting due to their higher MET levels (3-4 METs). It’s important to note that each day spent in bed can lead to a 15% loss of muscle mass, which can significantly affect exercise capacity.

Measuring MET Levels

At Heart 2 Heart, we conduct exercise tests to determine your MET level, along with your heart rate and blood pressure responses. We utilize the Chester Step Test, which progressively increases exercise intensity, leading to an approximate change of 1 MET with each level. This approach allows us to measure your functional capacity accurately and track your signs and symptoms throughout the test.

Developing a Personalized Exercise Program

Once the test concludes, we assess your MET level to create a tailored exercise program that is effective and safe. For example, if your MET score is 5, you may find stair climbing comfortable but may struggle with more strenuous activities like gardening. In such cases, we may start your treadmill sessions at a speed of 4.0 km/h.

Improving Your MET Level

Good news: exercise training can enhance your MET level. Research by Professor Blair indicates that increasing your MET level by 2 METs can reduce your risk of death by nearly one-third. Additionally, a 45-year-old male with a MET level of 10 has significantly lower cardiovascular disease risk compared to one with a MET level of 8.

Inquire About Your MET Level

If you have previously undergone exercise testing, don’t hesitate to ask a member of the Heart 2 Heart team about your MET level. Understanding your MET score can help you on your path to improved health and fitness.

Get in Touch

Feel free to reach out to us for more information or to discuss your exercise testing results.