Metabolism Review

Neurketa

Nola neurtzen da energia gastua

Metabolismo-tasa zure inguruan neurtzeko gauza neurgarrienetako bat da, eta etengabe oker deskribatzen dena.

Eguneratuta 3 min irakurri 40 aipamenak Emaitzen indarra 5/5

Odol azukre neurgailua, probetako zerrenda portuan sartuta
Roy Zuo · CC BY-SA 4.0 · Wikimedia Commons

Lau osagaiak

Zure eguneroko energia kontsumoa zer osatzen duen
OsagaiGutxi gorabeheraZenbat aldakorra
Bihotz-tasa atsedeneanGuztizkoaren %60-70Gehienbat masa libreko gantzaren arabera zehaztuta
Janariaren termiko efektuaSarrera %10 inguruDietetan proteinaren kopurua handituz, apur bat altuagoa
Ariketa jardueraOso aldakorraZure asmoz egiten duzun guztia
Ez-ariketa jarduera (NEAT)Wild card-aPertsonen artean eta pertsona baten barruan hainbat aldaketa izaten du

NEAT da pertsonen arteko aldakortasun benetakoaren gehiena bizi den lekua — mugitzea, postura, mugimendu espontaneoak. Dieta batean isiltzen den osagai ere bada, eta horrek jendeak bere metabolismoa "moteltzen" dela esperimentatzen duena da.

Ur bikoitzetik etiketatutako ur

Metodo erreferentziak hidrogeno eta oxigeno isotopo egonkorrez etiketatutako ur bat edatea eskatzen du, eta ondoren haien desagertze diferentziala jarraitu. Haien arteko aldea karbono dioxidoaren ekoizpena islatzen du, eta beraz energia kontsumoa, bizitzako aste bat edo bi aste normala igarotzen den bitartean. Garestia da eta ez da ukatzen.

Helduen energia kontsumo osoa neurtzeko sistematikako azterketa batek irudi eguneratua ematen du [2], eta datu multzoek populazioen artean resting eta energia kontsumo osoaren estimazioak ekoiztu dituzte [4][5]. Haur kronikoen gaixotasunetan, metodologia bera aplikatu da aurreikuspen ekuazioek gehien huts egiten duten lekuan [1].

Ur bikoitzetik etiketatutako ur metodo erreferentzia gisa

Zergatik ez dator zure fitness trackerra zure aplikazioarekin bat

Meta-analisi batek dieta ebaluazio metodoak ur bikoitzetik etiketatutako urarekin balioztatu zituen [3]. Aurkikuntza deserosoa eta koherentea da: jendeak sarrera azpimarratzen du nabarmen, eta azpimarratzea gorputz pisu handiagoa duten pertsonen artean handiagoa da. Ez da iruzur deliberatua — portzentaia estimatzea benetan zaila da, eta ez da janari eguneroko batek olioaren neurria zehatz-mehatz jasotzen.

Energia kontsumoari dagokionez, aurreikuspen ekuazioak sistematikoki alderatu ziren heldu osasuntsuetan eta kirolarietan, eta resting metabolic rate neurtzeko praktika onen gidalerroak daude. Guztiak populazio bateko batez bestekoak dira, eta indibidualtasun errore barra batzuk kilokaloria ehun bat ingurukoak dira.

Energia eskuragarritasuna, ez bakarrik sarrera

Kontzeptu bereizgarri bat garrantzitsua da serio entrenatzen duen edonorentzat: energia eskuragarritasuna sarrera minus ariketa kontsumoa da, masa libreko gantzaren arabera. Kronikoki baxua den eskuragarritasunak funtzio fisiologikoa murrizten du, janari nahastea dirudien aurretik. Proba bikoitz batek energia eskuragarritasun baxuak myofibrillar eta sarcoplasmic proteinaren sintesia murriztu du, eta nutrizio hezkuntza interbentzioak probatu dira horri aurre egiteko.

Loak guztiarekin interakzioa du — loaren murrizketa pisu galera konposizioa aldatu zuen proba bikoitz batean, eta loaren luzapena objektiboki neurtutako energia sarreran aldaketa bat ekarri zuen [6]. Gure loaren ebidentzia gunean gehiago.

Dietaren konposizioak kontsumoa aldatzen al du?

Apur bat, eta efektuaren tamaina benetan eztabaidatua da. Proba prominente batek energia kontsumoa aztertu zuen pisu galera mantentzean karbohidrato gutxiko dietan [7] eta aldea jakinarazi zuen; analisia luzaro eztabaidatu da. Laburpena zintzoa da, edozein efektu txikia da jendeak pentsatzen duena eta benetan jaten duenaren arteko aldea kontuan hartuta.

Ohiko galderak

Metabolismo motela al dut?
Ia ziur ez, pisu-arazo bat azal dezakeen mailan behintzat. Gorputz-konposizioaren arabera doituta, atsedeneko tasa metabolikoak uste baino askoz gutxiago aldatzen da pertsonen artean — eta ahoratutakoa jarraitzean egiten den neurketa-akatsa askoz handiagoa da.
Merezi al du gimnasioan test metaboliko bat egitea?
Kalorimetria zeharkakoa zehatza izan daiteke baldintza egokietan eginez gero — barau egoeran, atseden hartuta, ondo kalibratuta. Merkataritza-testen gehienek ez dituzte baldintza horiek betetzen.
Sarriago jateak metabolismoa areagotzen al du?
Ez. Elikagaien efektu termikoa jaten den kantitatearen araberakoa da, ez zenbat aldiz banatzen den jatea.
Zergatik gelditu zen nire pisu-galera?
Gastua jaisten da masa jaisten den heinean, eta ahoratutakoa gora egiten du zaintza ahultzen den heinean. Bata zein bestea ohikoak dira. Ikus egokitzapen metabolikoa.
Glukosa neurgailua eta bere osagarriak gainazal lauan antolatuta
Roy Zuo · CC BY-SA 4.0 · Wikimedia Commons

Lotutako irakurketa

Orri honen atzean dagoen froga 18 argitalpenen ikerketa motaren arabera osaketa erakusten duen barra pilatua. 9144meta-analysis (9)randomised trial (14)review (1)other (4)
28 argitalpen, 1989–2025. Horrek probak eta sintesiak biltzen dituen nahasketa bat da, eta horretatik kausaren inguruko baieztapen bat egiteko arrazoizkoa den posizioa da. Iturria: orri honen aipamen zerrenda, behean.

Erreferentziak

Hemen azpiko aipamen guztiak PubMed-en edo DOI bidezko jatorrizko peer-reviewed erregistroari lotzen diote. Hemen ez dago mediku aholkurik ordezkatzeko.

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  2. Total energy expenditure measured using doubly labeled water in adults with major chronic diseases: a systematic review Purcell SA, Craven SA, Limon-Miro AT, et al. · The American journal of clinical nutrition · 2024 · Systematic review DOIPubMed 39209153Full text
  3. Validity of dietary assessment methods compared with doubly labeled water in children: A systematic review and meta-analysis Mehranfar S, Jalilpiran Y, Jafari A, et al. · Obesity reviews : an official journal of the International Association for the Study of Obesity · 2024 · Meta-analysis DOIPubMed 38783784
  4. Estimates of Resting Energy Expenditure and Total Energy Expenditure Using Predictive Equations for Individuals After Bariatric Surgery: a Systematic Review with Meta-analysis Macena ML, Silva Júnior AE, Melo JM, et al. · Obesity surgery · 2023 · Meta-analysis DOIPubMed 37889369
  5. Accuracy of Resting Metabolic Rate Prediction Equations in Athletes: A Systematic Review with Meta-analysis O'Neill JER, Corish CA, Horner K · Sports medicine (Auckland, N.Z.) · 2023 · Meta-analysis DOIPubMed 37632665Full text
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  7. Physical activity and incident type 2 diabetes mellitus: a systematic review and dose-response meta-analysis of prospective cohort studies Smith AD, Crippa A, Woodcock J, et al. · Diabetologia · 2016 · Meta-analysis DOIPubMed 27747395Full text
  8. Estimating activity energy expenditure: how valid are physical activity questionnaires? Neilson HK, Robson PJ, Friedenreich CM, et al. · The American journal of clinical nutrition · 2008 · Meta-analysis DOIPubMed 18258615
  9. Best practice methods to apply to measurement of resting metabolic rate in adults: a systematic review Compher C, Frankenfield D, Keim N, et al. · Journal of the American Dietetic Association · 2006 · Systematic review DOIPubMed 16720129
  10. Comparison of predictive equations for resting metabolic rate in healthy nonobese and obese adults: a systematic review Frankenfield D, Roth-Yousey L, Compher C · Journal of the American Dietetic Association · 2005 · Systematic review DOIPubMed 15883556
  11. Acute mild cold exposure with shivering reduces 24 h glucose levels in individuals with type 2 diabetes but not prediabetes Hashim D, Jörgensen JA, van de Weijer T, et al. · Diabetologia · 2026 · Randomised controlled trial DOIPubMed 42474505Full text
  12. Protein yogurt and whey protein produce comparable muscle gains, but divergent microbiome shifts during strength training in older adults Monsalves-Álvarez M, Calderón-Romero P, Hayes-Ortiz T, et al. · Scientific reports · 2026 · Randomised controlled trial DOIPubMed 42151371Full text
  13. Adaptive Thermogenesis After Hypocaloric Low-Carbohydrate Versus Low-Fat Diets in African American Women: A Secondary Analysis Lopez Torres SY, Gower BA, Garvey WT, et al. · Obesity (Silver Spring, Md.) · 2025 · Randomised controlled trial DOIPubMed 40931394Full text
  14. Measuring dietary intake among participants with a urea cycle disorder using standard diet records or a novel food photography app Sim E, Gregor A, MacLeod E, et al. · Molecular genetics and metabolism · 2025 · Randomised controlled trial DOIPubMed 41242089Full text
  15. The effect of nutrition education sessions on energy availability, body composition, eating attitude and sports nutrition knowledge in young female endurance athletes Tektunalı Akman C, Gönen Aydın C, Ersoy G · Frontiers in public health · 2024 · Randomised controlled trial DOIPubMed 38550312Full text
  16. Low energy availability reduces myofibrillar and sarcoplasmic muscle protein synthesis in trained females Oxfeldt M, Phillips SM, Andersen OE, et al. · The Journal of physiology · 2023 · Randomised controlled trial DOIPubMed 37329147
  17. Effect of Sleep Extension on Objectively Assessed Energy Intake Among Adults With Overweight in Real-life Settings: A Randomized Clinical Trial Tasali E, Wroblewski K, Kahn E, et al. · JAMA internal medicine · 2022 · Randomised controlled trial DOIPubMed 35129580Full text
  18. Energy balance in hypothalamic obesity in response to treatment with a once-weekly GLP-1 receptor agonist Shoemaker AH, Silver HJ, Buchowski M, et al. · International journal of obesity (2005) · 2022 · Randomised controlled trial DOIPubMed 34975146Full text
  19. Influence of sleep restriction on weight loss outcomes associated with caloric restriction Wang X, Sparks JR, Bowyer KP, et al. · Sleep · 2018 · Randomised controlled trial DOIPubMed 29438540Full text
  20. Effects of a low carbohydrate diet on energy expenditure during weight loss maintenance: randomized trial Ebbeling CB, Feldman HA, Klein GL, et al. · BMJ (Clinical research ed.) · 2018 · Randomised controlled trial DOIPubMed 30429127Full text
  21. Does exercise training affect resting metabolic rate in adolescents with obesity? Alberga AS, Prud'homme D, Sigal RJ, et al. · Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2017 · Randomised controlled trial DOIPubMed 27923279
  22. A 2-Year Randomized Controlled Trial of Human Caloric Restriction: Feasibility and Effects on Predictors of Health Span and Longevity Ravussin E, Redman LM, Rochon J, et al. · The journals of gerontology. Series A, Biological sciences and medical sciences · 2015 · Randomised controlled trial DOIPubMed 26187233Full text
  23. The influence of nighttime feeding of carbohydrate or protein combined with exercise training on appetite and cardiometabolic risk in young obese women Ormsbee MJ, Kinsey AW, Eddy WR, et al. · Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2015 · Randomised controlled trial DOIPubMed 25409324
  24. Reading and listening to music increase resting energy expenditure during an indirect calorimetry test Snell B, Fullmer S, Eggett DL · Journal of the Academy of Nutrition and Dietetics · 2014 · Randomised controlled trial DOIPubMed 24794837
  25. Appetite control and biomarkers of satiety with vegetarian (soy) and meat-based high-protein diets for weight loss in obese men: a randomized crossover trial Neacsu M, Fyfe C, Horgan G, et al. · The American journal of clinical nutrition · 2014 · Randomised controlled trial DOIPubMed 24944057
  26. The doubly labeled water method produces highly reproducible longitudinal results in nutrition studies Wong WW, Roberts SB, Racette SB, et al. · The Journal of nutrition · 2014 · Randomised controlled trial DOIPubMed 24523488Full text
  27. Impact of energy restriction with or without resistance training on energy metabolism in overweight and obese postmenopausal women: a Montreal Ottawa New Emerging Team group study St-Onge M, Rabasa-Lhoret R, Strychar I, et al. · Menopause (New York, N.Y.) · 2013 · Randomised controlled trial DOIPubMed 22968252
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  29. Effect of dietary protein content on weight gain, energy expenditure, and body composition during overeating: a randomized controlled trial Bray GA, Smith SR, de Jonge L, et al. · JAMA · 2012 · Randomised controlled trial DOIPubMed 22215165Full text
  30. Validation of a pre-coded food record for infants and young children Gondolf UH, Tetens I, Hills AP, et al. · European journal of clinical nutrition · 2012 · Randomised controlled trial DOIPubMed 21829216
  31. Approaches for quantifying energy intake and %calorie restriction during calorie restriction interventions in humans: the multicenter CALERIE study Racette SB, Das SK, Bhapkar M, et al. · American journal of physiology. Endocrinology and metabolism · 2012 · Randomised controlled trial DOIPubMed 22127229Full text
  32. Calcium and dairy product modulation of lipid utilization and energy expenditure Teegarden D, White KM, Lyle RM, et al. · Obesity (Silver Spring, Md.) · 2008 · Randomised controlled trial DOIPubMed 18421269
  33. Training, muscle volume, and energy expenditure in nonobese American girls Eliakim A, Scheett T, Allmendinger N, et al. · Journal of applied physiology (Bethesda, Md. : 1985) · 2001 · Randomised controlled trial DOIPubMed 11133891
  34. Components of total energy expenditure in healthy young women are not affected after 14 days of feeding with medium-versus long-chain triglycerides Papamandjaris AA, White MD, Jones PJ · Obesity research · 1999 · Randomised controlled trial DOIPubMed 10348498
  35. Validity and reliability of reported dietary intake data Howat PM, Mohan R, Champagne C, et al. · Journal of the American Dietetic Association · 1994 · Randomised controlled trial DOIPubMed 8300993
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  37. Energy expenditure and obesity across the economic spectrum McGrosky A, Luke A, Arab L, et al. · Proceedings of the National Academy of Sciences of the United States of America · 2025 · Journal article DOIPubMed 40658837Full text
  38. Training volume and total energy expenditure of an Olympic and Ironman world champion: approaching the upper limits of human capabilities Dasa MS, Bu OA, Sandbakk Ø, et al. · Journal of applied physiology (Bethesda, Md. : 1985) · 2024 · Journal article DOIPubMed 39480269
  39. Constrained Total Energy Expenditure and Metabolic Adaptation to Physical Activity in Adult Humans Pontzer H, Durazo-Arvizu R, Dugas LR, et al. · Current biology : CB · 2016 · Journal article DOIPubMed 26832439Full text
  40. Compendium of physical activities: an update of activity codes and MET intensities Ainsworth BE, Haskell WL, Whitt MC, et al. · Medicine and science in sports and exercise · 2000 · Journal article DOIPubMed 10993420

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