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Your Body and You: A Guide to Segmental Analysis

Your Body and You: A Guide to Segmental Analysis
Editor’s Word: This submit was up to date on September 14,, 2018, for accuracy and comprehensiveness. It was initially revealed on June 14, 2017.

A few days in the past, you stepped on the toilet scale, and you’re stoked to see your weight goes down. Individuals have even began complimenting you on how robust and lean you look!.

The trouble you’ve put prior to now six months, weekly meal plan and thrice-a-week HIIT periods, have lastly paid off!

However this week, you step on the size once more and the numbers are greater than the final time. You examine your physique mass index, and it’s gone up! Plus, you have got a bloated stomach to boot! You freak out and marvel what’s happening.

Sounds acquainted?

Whether or not you’re knowledgeable athlete coaching for subsequent season or a self-proclaimed beginner who merely needs to get match and wholesome, an in-depth physique evaluation of your physique composition is essential in serving to you monitor progress and keep your objectives.

Positive, nothing beats working with well being and health execs recurrently to assist attain your physique composition objectives. But taking a physique evaluation and understanding the totally different variables that make up your physique composition has its benefits too.

First, it may possibly enable you to develop into extra goal (no want to freak out when your weight fluctuates!) in sustaining physique composition success as a result of you realize precisely the place you’re from a broader perspective. In a nutshell, you get to see the larger image via intimate information of the elements that make up physique composition.  Second, you’ll achieve a extra detailed, correct view and find a way to examine what’s working to what’s not. Consequently, you’ll know precisely what particular steps or changes you’ll be able to take in the direction of your aim, whether or not that’s to achieve extra muscle mass ,lose fats mass or each.

On this article, we’ll take a better take a look at some of the priceless outputs within the InBody end result sheet — Segmental Analysis.

What’s Segmental Analysis?

Body composition evaluation is a technique of describing what your physique is product of, together with fats, muscle, protein, minerals, and physique water. In typical BIA physique composition analyzers, the whole physique is analyzed as only one part or cylinder. This single-cylinder technique leads to just one impedance worth, which is used to decide the physique composition knowledge for a consumer.

Nevertheless, as a result of every physique half has totally different volumes, the single-cylinder technique leads to very skewed knowledge. Segmental evaluation offers physique composition knowledge in segments as well as to the standard full physique evaluation.

For instance, the InBody know-how divides the physique into 5 segments or “cylinders”:  the 2 arms, two legs, and the trunk (space between the neck and legs.)

Anybody can theoretically be underdeveloped/overdeveloped (relying in your physique objectives) for sure physique segments.  The excellent news is that segmental evaluation permits you to determine and examine these segments.

Proven: Body Composition End result Sheet from the InBody 770

Within the InBody outcome sheet, the highest bar exhibits Lean Body Mass (in kilos) is in a given phase. The highest bar of the Segmental Lean Analysis compares the kilos of Lean Body Mass in proportion to your peak and gender. This prime bar can be used for comparability between segments. An uneven weight distribution between the proper and left legs could also be an indication of overtraining or damage. Afterward, you will notice how power and conditioning coaches use segmental evaluation to practice their athletes.

The quantity proven on the backside bar is the share relating the lean mass within the phase that’s analyzed to the general physique weight. This exhibits whether or not the quantity of Lean Body Mass you have got in a phase in proportion to your complete physique weight is adequate. The 100% = adequate.

It’s value noting that the Lean Body Mass being referred to within the outcomes sheet doesn’t refer to how a lot “muscle” (also referred to as Skeletal Muscle Mass) you’ve in every phase. So it might be incorrect to name Segmental Lean Analysis a muscle evaluation chart. Whereas it’s a provided that skeletal positive factors in a physique phase shall be mirrored as positive factors within the Segmental Lean Analysis chart, not each achieve in Lean Body Mass could be defined by muscle achieve. How come?  As a result of Lean Body Mass additionally accounts for physique water. This makes Segmental Analysis helpful not only for monitoring muscle, but in addition for sure damage and illness states (which can be mentioned intimately under).

You’ll be able to study extra concerning the distinction in Lean Body Mass vs. Skeletal Muscle Mass: What’s the Distinction?

In hindsight, your segmental distribution might point out that you’ve maintained, developed, or misplaced muscle/fats mass proportionately. Whereas it’s true you can’t spot-reduce fats, you possibly can develop or keep sure muscle mass within the physique through the use of them extra, whether or not via train or your day-to-day actions.

How Segmental Analysis Works: Understanding the Know-how

Proven: InBody 770

So as to perceive how segmental evaluation is measured, let’s return to the fundamentals of physique composition testing first.

There are a number of methods to monitor and monitor physique composition. Some are fast to carry out, others require lots of effort. Outcomes can range too, starting from probably the most primary to probably the most complicated. At present, the next strategies are most often utilized in physique composition testing:

  • Skinfold Calipers
  • Hydrostatic Weighing
  • Twin Power X-ray Absorptiometry (DEXA)
  • Bioelectric Impedance Analysis (BIA)

You’ll be able to study extra concerning the aforementioned strategies in Body Composition 101: The Newbie’s Guide

Segmental evaluation falls underneath the DEXA and BIA technique.

BIA units vary extensively in high quality, method, and accuracy. Take into account that not all BIA units will measure impedance in your complete physique.  For example, there are handheld units that solely measure arm impedance and estimate outcomes for the decrease physique. In the meantime, there are residence rest room scales that use BIA to instantly measure impedance within the decrease physique however can solely make estimates for the higher physique.

Trendy, medical-grade BIA units that carry out segmental evaluation view the human physique as 5 “cylinders” or segments. Correct and unbiased measurements of every cylinder are important for offering evaluation not only for every cylinder, however for all the physique.

Direct Segmental Multi-frequency Bioelectrical Impedance Analysis (DSM-BIA)

InBody’s signature know-how is Direct Segmental Multi-frequency Bioelectrical Impedance Analysis (DSM-BIA) which individually measures the impedance of the arms, legs, and trunk.

Though correct impedance measurement of every cylinder is essential for dependable outcomes, crucial measurement is trunk impedance. Why the trunk?

The trunk accommodates important inner organs, and their metabolic traits are totally different from the opposite elements of the physique. When it comes to impedance, it is crucial to exactly and instantly measure the trunk as a result of resistance values within the trunk are a lot decrease than these within the arms and legs. Because of this the margin of error for trunk measurements have to be managed as a lot as attainable. DSM-BIA helps scale back this margin of error, giving customers correct and not estimated relaxation outcomes.

How Correct Is It?

In the event you’re curious concerning the accuracy of DSM-BIA in distinction to DEXA (thought-about because the gold commonplace in physique composition evaluation), a Dutch research on middle-aged adults came upon the reply for you.

The researchers examined the accuracy of (DSM-BIA) in assessing totally different physique composition parameters amongst their topics whereas utilizing DEXA as a reference commonplace. And their conclusion?

DSM-BIA is a legitimate device for the assessments of complete physique and segmental physique composition within the basic middle-aged inhabitants, notably for the quantification of physique lean mass.

And whereas we’re nonetheless evaluating DSM-BIA and DEXA, it’s additionally value noting that DSM-BIA has been proven to be a speedy noninvasive various to DEXA in assessing segmental lean delicate tissue (LST)  amongst feminine athletes.

One other research on overweight youngsters revealed that segmental evaluation might help decide the proper train patterns for weight reduction and prevention of related illnesses together with weight problems, sort 2 diabetes, and cardiovascular illnesses.

Lastly, a 2014 evaluate of literature on the position of BIA in medical standing monitoring and analysis of illnesses said that segmental BIA is extra exact than the ankle-foot technique in detecting fluctuation of ECF (extracellular fluids) due to variations in posture. Plus, it supplies a greater estimation of TBW (complete physique water) than complete physique measurements compared to reference strategies.

You possibly can study extra about physique water within the context of physique composition in Your Body and You: A Guide to Body Water

Who Will Profit the Most from Segmental Body Analysis?

Segmental physique evaluation is especially helpful for anybody who needs to measure and monitor their physique composition progress. Nevertheless, it may possibly show extraordinarily useful for the next teams:

1. Anybody who’s making an attempt to construct or rehabilitate a specific physique half reminiscent of athletes and sufferers with sure illness circumstances.

Do you know that the College of Northern Colorado Most cancers Rehabilitation Institute (UNNCRI) skilled an enormous increase of their sufferers’ rehabilitation session and retention charges after utilizing DSM-BIA?

Through the use of InBody’s Segmental Lean Analysis and different physique composition outputs, the specialists at UNCCRI have been in a position to prescribe extra detailed therapies and extra exact train interventions for sufferers. As of final month (Might 2016), UNCCRI posted an 87% attendance fee – the very best price within the institute’s 20-year historical past.

One other noteworthy case research on the good thing about segmental evaluation when it comes to rehabilitation is Restoration Healthcare’s data-driven strategy in serving to athletes recuperate from repetitive trauma points. The practical drugs follow in Southern California depends on segmental evaluation to uncover sure clues, hint the “why” behind the readings, and implement a custom-made program for his or her sufferers.

2. Athletes who need to assess the precise influence of their coaching regimens.

As an example, the Cirque du Soleil staff is determined by Segmental Analysis in figuring out asymmetries amongst members, and designing packages to assist tackle these imbalances. DSM-BIA has additionally helped injured performers shortly recuperate and get their physique again by monitoring particular modifications in the course of the reintegration cycle.

three. Sedentary adults who need to monitor and monitor their eating regimen/train efforts.

Higher or decrease physique imbalances are pretty widespread in in the present day’s more and more sedentary workforce, and you’ll possible encounter instances the place the higher physique is developed, however the decrease physique is severely uncared for.

This unbalanced weight distribution can improve the danger of damage and have an effect on mobility sooner or later.

four. “Skinny Fat” people who need to enhance their physique composition.

Also called sarcopenic overweight, skinny fats people have extra fats mass than is wholesome for his or her our bodies and have low quantities of Lean Muscle Mass. Their comparatively overdeveloped fats or underdeveloped muscle mass contributes to their physique weight.

Under is an instance of a segmental evaluation studying of a thin fats particular person:

Proven: Body Composition Outcome Sheet from the InBody 570

For this individual, who’s a 5’four” feminine, 135 kilos is simply above her excellent weight, however inside what is taken into account regular (BMI 22.5).  Nevertheless, it’s clear to see that this individual doesn’t have sufficient Skeletal Muscle Mass and has extreme physique fats. In the event you do the maths, this individual has a physique fats proportion of  This surpasses all higher limits of % physique fats ranges, that are often round 28%. 

5. Assess Danger for Aged People

The aged are at specific danger for not having sufficiently developed Lean Body Mass due to their tendency to lose muscle because of lowered bodily exercise. This impacts their capability to full day by day duties and will increase their danger for falls and accidents.

 6. Sufferers with continual points.

Segmental evaluation additionally offers invaluable info that healthcare professionals can use to assist sufferers with persistent medical circumstances. In truth, segmental physique composition analysis has been proven to be priceless within the early detection of muscular impairment in sufferers with COPD (Persistent Obstructive Pulmonary Illness).

By the identical token, segmental bioimpedance evaluation offers a extra correct knowledge on extracellular quantity taken from every phase amongst end-stage renal sufferers handled by hemodialysis.

Proven: Body Water End result Sheet from the InBody S10 

Placing It All Collectively

When accomplished correctly, Segmental Lean Analysis is among the strongest outputs in physique composition outcomes. Consider it as a magnifying glass to see if every corresponding phase is in proportion. The evaluation makes it straightforward to uncover drawback areas and determine imbalances precisely.

Now that you understand how superior physique composition know-how might help you keep wholesome and really feel your greatest, go get your physique composition evaluation examined to see what you discover out.Simply be certain that it’s one with Segmental Lean Analysis, so you possibly can see your lean physique mass.


Kyjean Tomboc is a nurse turned freelance healthcare copywriter and UX researcher.  After experimenting with going paleo and vegetarian, she realized that all of it boils down to consuming actual meals. 

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