DexaFit Seattle

DexaFit Seattle If your body could talk, what would it tell you? making it easy to monitor & take action

We deliver immediate, personalized insights about your body, fitness, and metabolism using medical-grade technologies considered the gold standard by science.

An astronaut can cross a room with one gentle push from a handrail. Movement looks effortless because the body is no lon...
09/07/2026

An astronaut can cross a room with one gentle push from a handrail. Movement looks effortless because the body is no longer working against gravity in the familiar way.

That convenience creates a serious problem.

NASA identifies microgravity as a threat to bone, muscle, and cardiorespiratory fitness. Astronauts aboard the International Space Station perform resistance and aerobic exercise for about 1.5 hours a day, six or seven days a week. They also complete periodic fitness evaluations so researchers can monitor changes and adjust the training approach.

The work helps prepare them for the moment gravity returns.

Landing and moving on Earth require strength, aerobic fitness, coordination, and enough musculoskeletal capacity to handle the load again. NASA reports that individual responses vary substantially, even with extensive countermeasures.

Life on Earth provides more loading than life in orbit. The useful principle still travels well: the body responds to the demands it repeatedly receives.

DEXA can track body composition and add bone-density context. VO2 testing measures aerobic capacity. Those results give a training plan something specific to build or protect.

Comment RESERVE for the free 90-Day Reserve Plan.

Physical reserve does not reduce to one number. The useful question is which part of the system deserves attention first...
09/06/2026

Physical reserve does not reduce to one number. The useful question is which part of the system deserves attention first.

Muscle helps produce force and manage physical work. Bone supports the load over a much longer timeline. Aerobic capacity influences how much sustained work the body can deliver. Resting energy expenditure gives nutrition planning an individual starting point.

Swipe through the four parts, then decide what your next 90 days should build or protect.

Comment RESERVE for the free planning guide.

Two people carry the same grocery bags up the same flight of stairs.One reaches the landing and starts putting food away...
09/04/2026

Two people carry the same grocery bags up the same flight of stairs.

One reaches the landing and starts putting food away. The other stands at the counter for a moment before opening the refrigerator.

Both bags weighed the same, and the staircase did not change. The climb simply consumed a different share of the capacity each person had available.

That share is a practical way to picture reserve.

The same errand can sit comfortably within one person’s range and close to another person’s current limit. The second person has less left for whatever the day asks next.

VO2 max testing measures the current aerobic ceiling. Ventilatory thresholds show where breathing, fuel use, and sustainable effort begin to change below that ceiling. DEXA adds body-composition information about the frame doing the work.

Testing cannot predict whether Thursday will become chaotic. It can show whether your current plan is building more room for demands you already recognize.

For one person, that means a faster race. For another, it means reaching the end of a long day with enough energy left for the evening.

Comment RESERVE for the free 90-Day Reserve Plan.

Researchers asked ten healthy young men, average age 23, to spend seven days in strict bed rest.This was a controlled st...
09/04/2026

Researchers asked ten healthy young men, average age 23, to spend seven days in strict bed rest.

This was a controlled study of extreme inactivity. The participants remained in bed while researchers measured several systems before and after the week.

The group lost an average of 1.4 kilograms of lean tissue. Quadriceps cross-sectional area declined by 3.2 percent. Peak oxygen uptake fell by 6.4 percent, and maximum leg strength fell by 6.9 percent.

Whole-body insulin sensitivity dropped by 29 percent. Insulin sensitivity describes how effectively the body responds to insulin as it manages glucose in the blood.

A little bit of honest context... Ten participants make this a very small study. Every participant was a young man, and strict bed rest is far more extreme than a vacation, a recovery week, or several missed workouts. These results describe what happened in this group under these conditions.

The useful lesson is that several systems responded within a short interruption. Muscle, aerobic fitness, and metabolic function all receive information from the demands placed on the body.

When life interrupts training, return when it is safe and rebuild progressively. If the interruption meaningfully changed your capacity or goals, a new baseline can help reset the plan.

Comment RESERVE for the free 90-Day Reserve Plan.

Inside an elevator is a small metal plate showing how much weight it is rated to carry. The number describes normal use....
09/03/2026

Inside an elevator is a small metal plate showing how much weight it is rated to carry. The number describes normal use. Behind that number are engineering safeguards, testing, and systems designed to keep an ordinary ride ordinary.

Human physiology is far more complicated than a machine, but the idea of margin is useful.

Most days place a familiar load on the body. Then a week arrives with a bad flu, a move, disrupted sleep, a demanding stretch at work, or someone you love who suddenly needs more from you.

Physical reserve is the capacity available beyond the demands of an ordinary day.

Several measurable qualities contribute to that reserve. Lean tissue helps support force and physical work. Aerobic capacity influences how much sustained effort the heart, lungs, blood, and muscles can deliver. Bone supports the frame. Adequate energy and recovery help the body adapt to training.

No single test captures the entire picture. DEXA, RMR, and VO2 testing answer different parts of the question. Together, they can show what your body is made of, what it uses at rest, and how much aerobic work it can currently support.

The value is knowing where to place the next 90 days before life chooses the test for you.

Comment RESERVE and we will send you the free 90-Day Reserve Plan.

09/01/2026

September often feels like a second January.

Vacations end. Schedules become more predictable. Training gets organized. Nutrition becomes more deliberate.

That makes the end of August an ideal time to ask what you want the next training block to prove.

Do you want to reduce fat while protecting lean mass?

Improve VO2 Max or move your aerobic threshold to a higher workload?

Build a nutrition strategy around measured resting energy expenditure rather than a population estimate?

Create a baseline for visceral fat, regional lean mass, or bone density?

The more specific the question, the more useful the follow-up becomes.

DEXA, RMR, and VO2 testing give you three different views of the system before the plan begins.

You still have to do the work.

You will simply know what the work is intended to change.

September is waiting with a fresh calendar and several opinions about what you should do next.The suggestions usually in...
08/31/2026

September is waiting with a fresh calendar and several opinions about what you should do next.

The suggestions usually involve adding cardio, changing calories, or starting another strength block. Most plans can begin before the body following them has been measured.

A comprehensive DexaFit assessment gives the planning conversation a stronger baseline.

The assessment combines a DEXA view of body composition with measured resting energy expenditure from RMR testing. A graded VO2 test adds cardiorespiratory fitness and observed ventilatory thresholds.

Together, those results help you choose a clearer priority for the next block and decide what deserves to be measured again.

September can keep the blank calendar. You can bring the useful data.

Book comprehensive testing at https://www.seattle.dexafit.com/

08/27/2026

Three people walk into DexaFit with the same sentence:
"I want to get healthier."

The first has strong lean mass and low visceral fat, but cardiorespiratory fitness falls below expectations for age and s*x. Aerobic development may deserve the first block of attention.

The second has improved VO2 Max but lost more lean mass than intended while reducing body weight. The next phase may need to emphasize resistance training, recovery, and appropriate nutrition support.

The third exercises consistently but has never measured resting energy expenditure. The calorie target guiding the plan was generated from age, height, weight, and an activity estimate. Measuring RMR may help evaluate that starting assumption.

None of these examples produces an automatic medical or nutrition prescription.

They do show why one goal can require different questions.

Comprehensive testing gives you a structured way to ask them before another month of effort is invested in a generic answer.

A good detective builds a case from more than one witness.The scale and a watch each provide useful accounts of progress...
08/27/2026

A good detective builds a case from more than one witness.

The scale and a watch each provide useful accounts of progress. DEXA, RMR, and VO2 testing add information from different systems inside the same body.

DEXA describes body composition, while RMR measures resting energy use. A graded VO2 test evaluates cardiorespiratory fitness and observed thresholds.

The value of comprehensive testing comes from seeing those results together. They can shape the priorities for nutrition and cardio training while giving the next retest a clear question to answer.

This carousel introduces the three witnesses and shows what each one adds to the case.

Save it for your next planning conversation or book comprehensive testing at https://www.seattle.dexafit.com/

A calorie equation works a lot like a weather forecast.It combines the information available, applies a model, and gives...
08/26/2026

A calorie equation works a lot like a weather forecast.

It combines the information available, applies a model, and gives you a reasonable starting point. For resting metabolism, common equations use inputs such as age, s*x, height, and weight.

Mifflin-St Jeor is one of the most respected equations in nutrition practice. Its estimate still describes the result of a model.

In a 2022 study of adults age 65 and older with obesity, 43.1 percent of Mifflin predictions fell within 10 percent of resting metabolic rate measured by indirect calorimetry. Every equation evaluated in that study had an accuracy rate below 60 percent for that specific population.

That sample has clear limits, and other populations can produce different accuracy results. The study shows why a measured RMR can be valuable when nutrition decisions depend on a more individual starting point.

Think of measured RMR as the local reading you use alongside the forecast.

RMR testing measures oxygen consumption and carbon dioxide production at rest to estimate your current resting energy expenditure.

Book RMR or comprehensive testing at https://www.seattle.dexafit.com/

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111 W. John Street Suite 203A
Seattle, WA
98119

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Monday 8:45am - 6pm
Tuesday 8:45am - 4:30pm
Thursday 8:45am - 4:30pm
Friday 8:45am - 4:30pm
Saturday 8:45am - 2pm

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