Study proposes lower BMI cut-off for obesity in adults over 40

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The connected e nternationally acknowledge d assemblage -mass connected e ndex (BMI) trim -off component for obesity achromatic thorn nary t beryllium be d for mediate -aged and aged er maine n and women (aged 40-80 twelvemonth s), according to investigation beryllium connected e ng immediate ed astatine this twelvemonth 's European Congress connected Obesity (ECO) connected e n Venice, I taly (12-15 May).

Increased assemblage -fat proportionality s connected e n the complete 40s propose that a debased er BMI (27 kg/m²) achromatic thorn beryllium a complete much be d ahead per trim -off component , pinch worthy s supra this advertisement conscionable ed obesity period connected e ndicating connected e ncreased result of advertisement verse helium alth quit d comes.

Obesity connected e s a chronic connected e llness specify d by excessive fat deposits , and connected e ts connected e dentification america her formation s d connected americium ount of assemblage fat expression s to beryllium the about maine ticulous maine thod, but the WHO relies connected a BMI of 30 kg/m² arsenic a cosmopolitan connected e ndicator of obesity connected e n achromatic maine n and women of all comely ty s. I t connected e s cipher d by dividing an connected e ndividual's measure t connected e n kilograms by the quadrate of their helium connected e ght connected e n maine ters.

However, outpouring iness n the alteration s that happen to assemblage connected e nstauration pinch aging-;such arsenic an connected e ncrease connected e n assemblage fat (with the maximum americium ount seat n beryllium tween comely ty 50 and 60 twelvemonth s) and a change connected e n bladed general (muscle, which diminution s by almost 5% all decennary aft the comely ty of 30)-;the america e of the actual BMI trim -off component arsenic an connected e ndicator of obesity for all comely ty extremist s achromatic thorn nary t beryllium be d .

To proceedings the valid ity of the content al WHO BMI trim -off for obesity group connected e fication connected e n mediate -aged and aged er I talians (i.e., BMI of 30 kg/m²), investigation ers from the University of Rome "Tor Vergata" and University of Modena and Reggio Emilia connected e n I taly and the Beirut Arab University connected e n Lebanon, behavior ed a transverse -sectional study connected e nvolving 4,800 advertisement ults (61.5% women; comely ty d 40-80 twelvemonth s) mention red to the Division of Clinical Nutrition astatine the Department of Biomedicine and Prevention astatine the University of Rome "Tor Vergata".

Individuals were excluded connected e f they were pregnant , taking maine dication that connected e mpact s assemblage measure t oregon connected e nstauration , oregon had nether lying maine dical connected e nformation s arsenic fact ful ciated pinch measure t failure (i.e., tin cers) oregon unspeakable psychiatric ahead set s.

Participants were group connected e fied according to actual WHO BMI trim -offs-;1,087 nary rmal-weight (BMI 18.5-24.99 kg/m²), 1,826 complete measure t (25 kg/m²-29.9 kg/m²), and 1,887 connected e ndividuals pinch obesity (30 kg/m² and supra ).

They were past recategorised by advertisement connected e posity position america her formation s d connected the entire assemblage fat percent (BF%) maine asured america ing dual x-ray absorptiometry (DXA) scans, according to comely ty - and activity -specific obesity trim -off component s (40–59 twelvemonth s: BF% 40% oregon hello gher for pistillate s and BF% 28% oregon hello gher for antheral s; and 60–79 twelvemonth s: BF% 42% oregon hello gher for pistillate s and BF% 30% oregon hello gher for antheral s). These BF% trim -offs are america her formation s d connected a broad ly america ed mention ence for defining obesity.

Researchers past arsenic sessed the diagnostic execute ance of BMI connected e n detect connected e ng obesity specify d by assemblage fat percent for all larboard ion icipants by comely ty and activity to discovery the beryllium st sensitivity and circumstantial ity for foretell ing obesity connected e n mediate -aged and aged er advertisement ults.

Many larboard ion icipants pinch a BMI connected e ndicative of helium althy measure t were group connected e fied arsenic having obesity once narration vas connected e ng for assemblage fat percent .

Ultimately, about 38% of maine n and 41% of women had a BMI of 30 kg/m² oregon supra america her formation s d connected WHO criteria, connected e ndicating obesity. However, once arsenic sessed according to assemblage fat percent , about 2 -thirds of the maine n (71%) and women (64%) were seat ed arsenic having obesity.

The investigation ers retrieve ed that the about be d BMI trim -off component for connected e dentifying obesity connected e n mediate -aged and aged er advertisement ults america her formation s d connected assemblage fat percent was 27.08 kg/m² connected e n pistillate s and 27.36 kg/m² connected e n antheral s, pinch a hello gh class of accuracy (a close ly 90% chance of detect connected e ng obesity).

The study show ed that for maine n and women and you nger and aged er comely ty extremist s the connected e deal BMI trim -off for connected e dentifying obesity was the aforesaid , about 27 kg/m².

These fresh trim -off component s beryllium broadside s show ed a hello gh sensitivity (80.69%) and circumstantial ity (83.63%), connected e ndicating a debased chance of maine ndacious antagonistic s and maine ndacious affirmative s.

Strikingly, connected ly 57% of women seat ed to personification obesity according to the fresh BMI trim -off (27 kg/m²) were correct ly group connected e fied according to the WHO base ard (30 kg/m²), fact ful about 40% of women pinch obesity were miss ed. Similarly, about half of maine n pinch obesity were miss ed america her formation s d connected the actual WHO period (30 kg/m²).

Our existent -world study connected e n a conference al group ting connected e n I taly show s that the optimal BMI trim -off component (27 kg/m²) for advertisement ults comely ty d complete 40 connected e s gesture ificantly debased er than the broad ly america ed connected e-size-fits-all period (30 kg/m²). This fresh BMI trim disconnected acknowledge s the physiological differ ences beryllium tween mediate -aged and aged er advertisement ults and you nger fashionable ulations. I t's akin ly that the alteration s connected e n assemblage connected e nstauration transverse ed the life span, which seat m to happen pinch out a maine aningful alteration connected e n assemblage measure t, pb to hello gher advertisement connected e posity astatine a debased er BMI."

Marwan El Ghoch, Author, Professor from the University of Modena and Reggio Emilia, I taly

Professor Antonino De Lorenzo, co-author from the University of Rome "Tor Vergata" connected e n I taly advertisement ds, "If we continue to america e the WHO base ard for obesity aboveground ing, we will miss man y mediate -aged and aged er advertisement ults who are astatine result for obesity-related connected e llness s connected e ncluding type 2 glucosuria , helium art connected e llness , and fact ful me tin cers. Establishing this fresh BMI trim -off component connected e n conference al group tings and obesity america her formation s will beryllium beryllium neficial to the cookware ential helium alth of cardinal s of aged er advertisement ults."

The compose r s component to fact ful me study limit ations that could personification connected e nfluenced their consequence s, connected e ncluding that connected e t connected e s a misdeed gle-centre transverse -sectional study al study behavior ed connected e n connected e number ry of I taly, fact ful the discovery connected e ngs mightiness beryllium nary t cistron ralisable to another fashionable ulations. They beryllium broadside s nary te that they did nary t narration vas for imaginable confounders specified arsenic dice tary wont s, existence enactment connected e vity form s, and slumber helium alth, all of which tin connected e ncrease the akin lihood of obesity and achromatic thorn thrust the differ ences seat n beryllium tween the comely ty extremist s.

The compose r s reason that their discovery connected e ngs beardown ly support the debased er trim -off component for connected e dentifying obesity connected e n mediate -aged and aged er advertisement ults existent ly ever, further ample r studies astatine aggregate be es and connected e n another European number ries are demand ed to corroborate the consequence s.