Understanding your Measurements
Understanding your Measurements
If you can measure it, you can manage it!
Time to find out what you’re made of.
This page explains which measurements there are, and how they impact you. Click on the links to read more about the different measurements.
Tanita produces body analyzers that can show you all these measurements. Tanita body composition monitors bring you fast, accurate body composition results using the latest advanced bioelectrical impedance analysis (BIA) technology developed by Tanita over the last 25 years. These body analysis scales give you a true indicator of your inner health and, when monitored over time, can show the impact of any fitness regime or weight loss programme.
Body Fat Percentage and Body Fat Mass
Body Fat Percentage is the proportion of fat to the total body weight. Body Fat Mass is the actual weight of fat in your body.
Body fat is essential for maintaining body temperature, cushioning joints and protecting internal organs. Body fat scales can help you keep track of your body fat.
The energy, or calories, our body needs comes from what we eat and drink. Energy is burned through physical activity and general bodily functions. If you consume the same number of calories as you burn, all the calories are converted into energy. But if you consume more than you burn, excess calories are stored in fat cells. If this stored fat is not converted into energy later, it creates excess body fat.
Although you need healthy body fat, too much fat can damage your long-term health. Reducing excess levels of body fat has been shown to directly reduce the risk of certain conditions such as high blood pressure, heart disease, type 2 diabetes and certain cancers.
Too little body fat may lead to osteoporosis in later years, irregular periods in women and possible infertility.
It is important to keep track of your body fat with a body fat scale. Then you can check your body fat results against the Tanita healthy body fat ranges. These measurements are available for everyone from age five to 99 years.
Visceral fat is located deep in the core abdominal area, surrounding and protecting the vital organs.
Even if your weight and body fat remains constant, as you get older the distribution of fat changes and is more likely to shift to the abdominal area. Ensuring you have a healthy level of visceral fat directly reduces the risk of certain diseases such as heart disease, high blood pressure and may delay the onset of type 2 diabetes.
Measuring your visceral fat with a body fat scale helps you keep track of potential problems and test the effectiveness of your diet or training.
Muscle MassThe predicted weight of muscle in your body.
Muscle mass includes the skeletal muscles, smooth muscles such as cardiac and digestive muscles and the water contained in these muscles. Muscles act as an engine in consuming energy.
As your muscle mass increases, the rate at which you burn energy (calories) increases which accelerates your basal metabolic rate (BMR) and helps you reduce excess body fat levels and lose weight in a healthy way.
If you are exercising hard your muscle mass will increase and may increase your total body weight too. That’s why it’s important to monitor your measurements regularly to see the impact of your training programme on your muscle mass.
Total Body Water
Total Body Water is the total amount of fluid in the body expressed as a percentage of total weight.
Body water is an essential part of staying healthy. Over half the body consists of water. It regulates body temperature and helps eliminate waste. You lose water continuously through urine, sweat and breathing, so it’s important to keep replacing it.
The amount of fluid needed every day varies from person to person and is affected by climatic conditions and how much physical activity you undertake. Being well hydrated helps concentration levels, sports performance and general wellbeing.
Experts recommend that you should drink at least two litres of fluid each day, preferably water or other low calorie drinks. If you are training, it’s important to increase your fluid intake to ensure peak performance at all times.
Read all about body water.
The average TBW% ranges for a healthy person are:
Female 45 to 60%
Male 50 to 65%
The predicted weight of bone mineral in your body.
While your bone mass is unlikely to undergo noticeable changes in the short term, it’s important to maintain healthy bones by having a balanced diet rich in calcium and by doing plenty of weight-bearing exercise.
You should track your bone mass over time and look for any long term changes.
Assesses muscle and body fat levels and rates the result as one of nine body types.
Basal Metabolic Rate (BMR)
The daily minimum level of energy or calories your body requires when at rest (including sleeping) in order to function effectively.
Increasing muscle mass will speed up your basal metabolic rate (BMR). A person with a high BMR burns more calories at rest than a person with a low BMR.
About 70% of calories consumed every day are used for your basal metabolism. Increasing your muscle mass helps raise your BMR, which increases the number of calories you burn and helps to decrease body fat levels.
Your BMR measurement can be used as a minimum baseline for a diet programme. Additional calories can be included depending on your activity level. The more active you are the more calories you burn and the more muscle you build, so you need to ensure you consume enough calories to keep your body fit and healthy.
As people age their metabolic rate changes. Basal metabolism rises as a child matures and peaks at around 16 or 17, after which point it typically starts to decrease. A slow BMR will make it harder to lose body fat and overall weight.
Compares your BMR to an average for your age group.
This is calculated by comparing your basal metabolic rate (BMR) to the BMR average of your chronological age group. If your metabolic age is higher than your actual age, it’s an indication that you need to improve your metabolic rate. Increased exercise will build healthy muscle tissue, which in turn will improve your metabolic age. Stay on track by monitoring regularly.
Body Mass Index
A standardised ratio of weight to height, used as a general indicator of health.
Your BMI can be calculated by dividing your weight (in kilograms) by the square of your height (in meters).
BMI is a good general indicator for population studies but has serious limitation when assessing on an individual level.
indicates the quality / state of the muscle which changes according to factors such as age and fitness.
The muscle quality of young people or those who exercise regularly are normally in a good state. The state of muscles deteriorates in elderly people and those who do not get enough exercise. Innerscan Dual Body Composition Frequency analyser RD-953, uses 2 different frequencies to measure bioelectrical impedance and these results are used to evaluate the muscle state using the muscle quality
DCI – Daily calory intake
An estimate of how many calories you can consume within the next 24 hours to maintain your current weight.
Daily Calorie Intake (DCI) is the sum of calories for basal metabolism (BMR), daily activity metabolism (activities including daily household chores), and diet-induced thermogenesis (energy used in connection with digestion, absorption, metabolism, and other eating activities). Use this as a guideline in your daily meal planning. Consuming fewer calories that your predicted DCI value will help you lose weight, be sure to maintain a good physical activity so you do not lose muscle mass.
Muscle quality score
The muscle mass is assessed for persons 18 years and older.
Muscle mass is judged by calculating the amount of muscle mass against the persons height and then the amount is classified. The RD-953 displays the muscle mass judgement as a muscle score. The larger the number, the more muscle mass a person has.
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Segmental Muscle Mass
Muscle mass rating for five body parts: the core abdominal area and arm and leg.
Monitoring the segmental muscle mass of each of your arms and legs and core abdominal area will help you see and understand the impact of your training programme over time. You can also use this information to correct muscle imbalances and avoid injury.
Segmental Body Fat Percentages
Body fat percentages for five body segments: the core abdominal area and each arm and leg.
Take full control of your body.
Monitor your body with the RD-545, a medical grade scale that offers 20 types of body composition monitoring and even lets you mease per segment of your body.
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Medical accuracy and reliability
With over 25 years of scientific and medical research, our BIA technology leads the way and is clinically proven to be the most accurate on the market. No one else can provide the precision, reliability and level of excellence that Tanita monitors offer
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When it comes to health monitoring, Tanita is the first choice among experts. Sports coaches, health providers, scientists and global brands know they can trust Tanita to deliver the standard they require. We can do the same for you
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We don't just measure. We work to empower everyone to change their health for the better whether that's individuals, sports teams or families. We also fund medical research projects worldwide that contribute to our understanding of how to lead a healthier and fitter life