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Body composition
Fat mass vs. lean mass
California's Mobile Hydrostatic Testing Lab
HydrostaticStop guessing. Start knowing.
A 10-minute body composition test that separates fat from muscle and gives you useful targets for what to do next.
10 minPrivate test
$59First test
5 countiesLA · Ventura · Santa Barbara
Kern · San Bernardino
Kern · San Bernardino
Body Composition Analysis
www.BodyFatTestCA.com
About Your Analysis
* Accurate assessment of your body fat % and lean mass
* Detailed tracking of previous tests
* A reference table showing where you are and where you should be
* Calculation of your resting metabolic rate and total caloric burn
Our bodies are composed of two types of tissue. Lean tissue which includes muscle, bone, all our organs and skin as well as our fat or adipose tissue. Studies have shown there are many health related issues linked to excess body fat such as heart disease, diabetes, high blood pressure, cancer etc. There are several methods of estimating body composition from air displacement, skinfold pinching as well as X-ray technology. Hydrostatic is the method by which all other modalities measure their own margin of error which is why it is called The Only Gold Standard.
Client Data
Name:Sample Client
Phone:
Email:
Sex:M
Age:37
Height (in):73.5
Dry Weight (lb):204.6
Wet Weight (lb):9.24
Water Temp (F):92
Body Fat
Weight (lb):
26.5
Percentage:
13%
Lean Body Mass
Weight (lb):
178.1
Percentage:
87%
Client History
Weight
Lean Lb
Change Lbs
Fat Lb
BF %
Change
4/10/2024
204.6
178.1
-0.10
26.5
13
1.2%
3/6/2024
202
178.2
-3.30
23.8
11.8
-1.5%
2/7/2024
209.3
181.5
6.70
27.8
13.3
2.8%
6/7/2023
195.3
174.8
-2.20
20.5
10.5
-0.4%
4/5/2023
198.7
177
1.00
21.7
10.9
-1.1%
3/8/2023
200
176
-3.70
24
12
1.1%
1/11/2023
201.7
179.7
2.90
22
10.9
0.1%
12/7/2022
198.2
176.8
1.00
21.4
10.8
0.4%
10/5/2022
196.2
175.8
-1.90
20.4
10.4
-0.4%
8/3/2022
199.2
177.7
21.5
10.8
For more information email Linda@BodyFatTest.com
Current Status and Goals
According to your age group and gender, your percentage places you closest to 12.7% and is 'Athletic Range'.
Percent Body Fat (%) - Males
20s
30s
40s
50s
60+
Rating
2.4
5.2
6.6
8.8
9.9
ESSENTIAL
5.2
9.1
11.4
12.9
13.1
7.1
11.3
13.6
15.3
15.3
8.3
12.7
15.1
16.9
17.2
ATHLETIC
9.4
13.9
16.3
17.9
18.4
10.6
14.9
17.3
19.0
19.3
11.8
15.9
18.1
19.8
20.3
12.9
16.6
18.8
20.6
21.1
14.1
17.5
19.6
21.3
22.0
HEALTHY
15.0
18.2
20.3
22.1
22.6
15.9
19.0
21.1
22.7
23.5
16.8
19.7
21.8
23.4
24.3
17.4
20.5
22.5
24.1
25.0
FAIR
18.3
21.4
23.3
24.9
25.9
19.5
22.3
24.1
25.7
26.7
20.7
23.2
25.0
26.6
27.6
22.4
24.2
26.1
27.5
28.5
UNHEALTHY
23.9
25.5
27.3
28.8
29.7
25.9
27.3
28.9
30.3
31.2
29.1
29.9
31.5
32.4
33.4
VERY UNHEALTHY
36.4
35.6
37.4
38.1
41.3
Source: Data provided by Dr. Kenneth Cooper's Institute for Aerobics Research, Dallas, TX.
Adapted by permission.
Target Weight
In general, the normal healthy range of body fat percentage changes based on your age. Current studies suggest that obesity is generally defined as a value greater than 26% for men and 32% for women. Our body fat will tend to increase as we age. It can be influenced by genetics, hormonal changes or even environmental reasons.
By using the charts below, you can estimate what is needed to reach a specific goal whether losing fat only or gaining muscle only. Keep in mind there are many physiological influences that are involved with this process.
The following chart is what your body fat percentage will be if you lose FAT ONLY.
% Fat
Target Weight
Lbs Fat Lost
13
205
0
12.1
203
2
11.2
201
4
10.3
199
6
9.4
197
8
8.5
195
10
7.5
193
12
% Fat
Target Weight
Lbs Muscle Gained
13
205
0
12.8
207
2
12.7
209
4
12.6
211
6
12.5
213
8
12.3
215
10
12.2
217
12
Or if you gain LEAN MASS only.
Weight Control Recommendations
Should you have a desire to reduce your percentage of body fat, begin with a reasonable goal. Keep in mind that most of the current research indicates that if you want to lose fat only, you should keep your body weight loss at or below one pound per week, while maintaining an exercise program that is geared to maintain or increase lean muscle mass.
In general, most people think that in order to lose weight all they need to do is cut back on the quantity of food that they eat. Losing weight in a healthy manner involves much more. It requires the incorporation of behavorial modification, nutritional education and understanding how the body uses and metabolizes carbohydrates, fats, and protein. Ask us about meal planning services.
Resting Metabolic Rate
Resting Metabolic Rate (RMR) accounts for approximately 70% of your daily energy expenditure. This rate varies between individuals, but according to your body size and composition you have an RMR of 2247 calories per day.
Exercise
One of the most significant factors in weight control is the amount of physical activity in which you engage. Since most people slowly add weight and body fat over a long period, the logical way to reverse this process is to gradually increase activity over similar periods. Over time, these small increases in caloric expenditure become significant. The following list estimates how many calories you will burn in 30 minutes when participating in various activities. Your exact caloric expenditure will vary based on your experience and efficiency in a particular activity. As you continue to participate in the same activity, you become more efficient, and consequently, burn fewer calories. Therefore, participating in a variety of activities or extending the time in the same activity may be the most effective way to maximize caloric expenditure.
Note:
Make sure you eat a light snack/meal both before and after workouts. Both protein and complex carbohydrates are required to maintain lean mass. It's recommended 80-100 calories for people 150 pounds and under and 100-200 calories for people 150 pounds and up.
Calories burned in
30 minutes
30 minutes
Activity
232
Aerobics, hi impact (step, cardio kick boxing)
325
Aerobics, high impact
279
Bicycling, 10-11.9 mph, light
372
Bicycling, 12-13.9 mph, moderate
465
Bicycling, 14-15.9 mph, vigorous
372
Rope jumping, slow
465
Rope jumping, moderate
558
Rope jumping, fast
372
Running, 5 mph (12 min/mile)
581
Running, 7.5 mph (8 min/mile)
744
Running, 10 mph (6 min/mile)
279
Swimming, leisurely, not lap swimming, general
372
Swimming laps, freestyle, slow, moderate
465
Swimming laps, freestyle, fast, vigorous
162
Walking 3.0 mph, level, moderate
186
Walking 3.5 mph, level, brisk
186
Walking 4.0 mph, level, very brisk
186
Water aerobics, water calisthenics
372
Circuit training, general or elevated pulse rate, vigorous
279
Stair-treadmill-elliptical trainer, general
441
Ski machine, general
255
Bicycling, stationary, 100 watts, light
325
Bicycling, stationary, 150 watts, moderate
488
Bicycling, stationary, 200 watts, vigorous
162
Rowing, stationary, 50 watts, light
325
Rowing, stationary, 100 watts, moderate
395
Rowing, stationary, 150 watts, vigorous
139
Weight lifting (free weights or machine), light to moderate
279
Weight lifting (free weights or machine), vigorous
Your report · page 1 of 4
89–92°F warm waterUnder for about 5 secondsPrivate — just you and your testerCommercial-grade filtration
Health clubs, fire and police departments, universities and workplaces across five counties since 2019. Select a city to see the locations and when we were last there. This is the track record, not the schedule — upcoming dates live on the calendar.
100+Locations served
45Cities
488Testing days
Locations served100+ stops since 2019
Plotting locations…
One test. Useful answers.
The scale gives you a number. We show you what it means.
Personal resting metabolic rate (RMR)
Calculated from your measured body
Progress over time
Compare every visit
Custom 4-page report
Including your calculated RMR
Stop tracking the wrong thing
Weight loss and fat loss are not the same.
Your digital scale combines everything into one number. Hydrostatic testing shows whether a change came from fat or from the lean mass you worked hard to build.
Read the testing FAQIncluded in every report06 outputs
01
Body fat percentage
02
Fat and lean mass — weight and %
03
Calculated RMR, not an estimate
04
Exercise expenditure calculation
05
Find out what is considered healthy in your age group and gender
06
Comparative data to see what’s changed
Simple by design
From booking to results in three clear steps.
No clinic maze. No waiting days for a report. The mobile testing lab comes to a location near you.
Find a lab date
Choose a testing date near you from our Southern California event calendar.
Get in the tank
You are under water for about 5 seconds. The private, sanitized, warm-water test takes about 10 minutes start to finish — and it is very safe, with no radiation.
Leave with answers
Get your results immediately, plus a custom 4-page report with your calculated RMR.
LA · Ventura · Santa Barbara · Kern · San Bernardino
The lab comes to you
Accurate testing, without the clinical runaround.
Our mobile testing labs visit locations across Southern California — health clubs, fire and police departments, universities, workplaces and community events. The testing tank is sanitized, private and ready for you when you arrive.
Under water about 5 seconds Very safe — no radiation
View events and pricing
Meet the founder
Every test is run and explained by Linda Finley.
For more than 18 years, Linda has been the owner and operator of Body Fat Test SoCal, a mobile hydrostatic body composition testing service serving communities throughout Southern California.
As a Precision Nutrition Certified Nutrition Coach and hydrostatic weighing specialist, Linda has worked with health clubs, police and fire departments, universities, corporate wellness programs and individuals to provide accurate body composition testing and practical nutrition guidance.
Linda believes in practicing what she promotes. When she’s not on the road testing clients, you’ll often find her staying active, whether she’s cycling, swimming or simply enjoying time outdoors with friends. For Linda, health and fitness aren’t just part of her work—they’re part of how she lives.
Owner-operatorHydrostatic weighing specialistPrecision Nutrition Certified Nutrition Coach
Text Linda a question — (805) 205-5356As seen on YouTube
Linda is in the first few seconds of the Tristyn Lee video.
Fitness YouTuber Tristyn Lee came to Body Fat Test SoCal for a hydrostatic test. Jimmy Kimmel and Kevin Hart sat for one too.
★★★★★
“There is no substitute for the information she provides from the tests. I never would have found those eating and workout habits otherwise.”
Simon JohnsonVerified Google review · Client for 3 years
Read customer stories