La Ciencia Detrás de TrainO
Cada algoritmo de TrainO está respaldado por investigación científica peer-reviewed.
Cada motor, cada fórmula y cada recomendación en TrainO está fundamentado en investigación publicada en revistas científicas de alto impacto. Aquí presentamos las fuentes que respaldan nuestros algoritmos.
1. Metabolismo y Gasto Energético
A new predictive equation for resting energy expenditure in healthy individuals.
doi:10.1093/ajcn/51.2.241 Motor nutricional — BMRComparison of predictive equations for resting metabolic rate in healthy nonobese and obese adults: a systematic review.
doi:10.1016/j.jada.2005.02.005 Motor nutricional — validación BMRDietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids.
doi:10.17226/10490 Motor nutricional — factores de actividadDietary Reference Intakes for energy, carbohydrate, fiber, fat, fatty acids, cholesterol, protein and amino acids.
doi:10.1016/S0002-8223(02)90346-9 Motor nutricional — DRI2. Objetivos y Balance Calórico
Evidence-based recommendations for natural bodybuilding contest preparation: nutrition and supplementation.
doi:10.1186/1550-2783-11-20 Déficit calórico — cuttingEffect of two different weight-loss rates on body composition and strength and power-related performance in elite athletes.
doi:10.1123/ijsnem.21.2.97 Velocidad de pérdida de pesoInternational Society of Sports Nutrition position stand: diets and body composition.
doi:10.1186/s12970-017-0174-y Composición corporalIs an energy surplus required to maximize skeletal muscle hypertrophy associated with resistance training.
doi:10.3389/fnut.2019.00131 Superávit calórico — bulkingNutrition recommendations for bodybuilders in the off-season: a narrative review.
doi:10.3390/sports7070154 Objetivos nutricionalesThe effects of overfeeding on body composition: the role of macronutrient composition — a narrative review.
Superávit y distribución de macrosBody recomposition: can trained individuals build muscle and lose fat at the same time?
doi:10.1519/SSC.0000000000000584 Recomposición corporalWhat is the required energy deficit per unit weight loss?
doi:10.1038/sj.ijo.0803720 Cálculo de déficit calóricoQuantification of the effect of energy imbalance on bodyweight.
doi:10.1016/S0140-6736(11)60812-X Modelo de balance energético3. Proteína
A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults.
doi:10.1136/bjsports-2017-097608 Rango de proteína — 1.6-2.2 g/kgHigher compared with lower dietary protein during an energy deficit combined with intense exercise promotes greater lean mass gain and fat mass loss.
doi:10.3945/ajcn.115.119339 Proteína en déficit calóricoInternational Society of Sports Nutrition position stand: protein and exercise.
doi:10.1186/s12970-017-0177-8 Requerimientos de proteínaDietary protein for athletes: from requirements to optimum adaptation.
doi:10.1080/02640414.2011.619204 Proteína para atletasHow much protein can the body use in a single meal for muscle-building? Implications for daily protein distribution.
doi:10.1186/s12970-018-0215-1 Distribución de proteína por comidaIngested protein dose response of muscle and albumin protein synthesis after resistance exercise in young men.
doi:10.3945/ajcn.2008.26401 Dosis óptima por comidaThe response of muscle protein synthesis following whole-body resistance exercise is greater following 40 g than 20 g of ingested whey protein.
doi:10.14814/phy2.12893 Síntesis proteica muscularDietary protein distribution positively influences 24-h muscle protein synthesis in healthy adults.
doi:10.3945/jn.113.185280 Distribución proteica diariaTiming and distribution of protein ingestion during prolonged recovery from resistance exercise alters myofibrillar protein synthesis.
doi:10.1113/jphysiol.2012.244897 Timing de proteínaSupplementation of a suboptimal protein dose with leucine or essential amino acids: effects on myofibrillar protein synthesis at rest and following resistance exercise in men.
doi:10.1113/jphysiol.2012.228833 Leucina y aminoácidos esencialesThe muscle protein synthetic response to meal ingestion following resistance-type exercise.
doi:10.1007/s40279-019-01053-5 Respuesta MPS post-ejercicioRecommended dietary allowances for protein in adolescence.
Proteína mínima por edad4. Grasas
International Society of Sports Nutrition position stand: nutrient timing.
doi:10.1186/s12970-017-0189-4 Timing de grasasFats and fatty acids in human nutrition: report of an expert consultation.
Rango mínimo de grasasScientific opinion on dietary reference values for fats.
doi:10.2903/j.efsa.2010.1461 Valores de referencia de grasasEffects of dietary fat and fiber on plasma and urine androgens and estrogens in men.
doi:10.1093/ajcn/64.6.850 Grasas y testosteronaLow-fat high-fiber diet decreased serum and urine androgens in men.
doi:10.1210/jc.2004-1530 Mínimo de grasa dietariaTestosterone and cortisol in relationship to dietary nutrients and resistance exercise.
doi:10.1152/jappl.1997.82.1.49 Grasas y rendimientoLow-fat diets and testosterone in men: systematic review and meta-analysis of intervention studies.
doi:10.1016/j.jsbmb.2021.105878 Grasas mínimas — salud hormonalIncreasing dietary carbohydrate as part of a healthy whole food diet intervention dampens eight week changes in salivary cortisol and cortisol responsiveness.
doi:10.3390/nu11112563 Balance grasas/carbohidratos5. Carbohidratos
Carbohydrates for training and competition.
doi:10.1080/02640414.2011.585473 Carbohidratos y rendimientoPosition of the Academy of Nutrition and Dietetics, Dietitians of Canada, and the American College of Sports Medicine: nutrition and athletic performance.
doi:10.1016/j.jand.2015.12.006 Nutrición deportiva6. Frecuencia y Distribución de Comidas
Effects of meal frequency on weight loss and body composition: a meta-analysis.
doi:10.1093/nutrit/nuu017 Frecuencia de comidasInternational Society of Sports Nutrition position stand: meal frequency.
doi:10.1186/1550-2783-8-4 Distribución de comidasIncreased protein intake and meal frequency reduces abdominal fat during energy balance and energy deficit.
doi:10.1002/oby.20296 Frecuencia y grasa abdominalDietary protein distribution positively influences 24-h muscle protein synthesis in healthy adults.
doi:10.3945/jn.113.185280 Distribución proteica por comida7. Adaptación Metabólica y Adherencia
Metabolic adaptation to weight loss: implications for the athlete.
doi:10.1186/1550-2783-11-7 Analizador metabólico — umbralesIntermittent energy restriction improves weight loss efficiency in obese men: the MATADOR study.
doi:10.1038/ijo.2017.206 Diet breaksFlexible vs. rigid dieting in resistance-trained individuals seeking to optimize their physiques.
doi:10.1186/s12970-021-00452-2 Dieta flexibleContinuous versus intermittent moderate energy restriction for increased fat mass loss and fat-free mass retention in adult athletes.
doi:10.1007/s40279-021-01468-z Restricción intermitenteValidation of the flexible and rigid control dimensions of dietary restraint.
doi:10.1002/(SICI)1098-108X(199907) Control flexible vs. rígido8. Calidad de Comidas
Carbohydrate quality and human health: a series of systematic reviews and meta-analyses.
doi:10.1016/S0140-6736(18)31809-9 Regla de fibraGuideline: Sugars intake for adults and children.
Regla de azúcarUse of non-sugar sweeteners: WHO guideline.
EdulcorantesDietary sugars intake and cardiovascular health: a scientific statement from the American Heart Association.
doi:10.1161/CIRCULATIONAHA.109.192627 Límite de azúcar añadidoDietary fats and cardiovascular disease: a presidential advisory from the American Heart Association.
doi:10.1161/CIR.0000000000000510 Regla de grasas saturadasGuideline: Sodium intake for adults and children.
Regla de sodioUltra-processed foods, diet quality, and health using the NOVA classification system.
Clasificación NOVAUltra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses.
doi:10.1136/bmj-2023-077310 Ultraprocesados y saludDietary Guidelines for Americans, 2020-2025.
Guías dietarias9. RED-S y Disponibilidad Energética
The IOC consensus statement: beyond the Female Athlete Triad — Relative Energy Deficiency in Sport (RED-S).
doi:10.1136/bjsports-2014-093502 Alertas de déficit extremoIOC consensus statement on Relative Energy Deficiency in Sport (RED-S): 2018 update.
doi:10.1136/bjsports-2018-099193 RED-S actualizaciónEnergy deficiency impairs resistance training gains in lean mass but not strength.
doi:10.1111/sms.14165 Déficit y masa muscularLow-energy availability in athletes: a review of prevalence, dietary patterns, physiological health, and sports performance.
doi:10.1007/s40279-021-01567-x Baja disponibilidad energéticaIOC consensus statement on relative energy deficiency in sport (REDs).
doi:10.1136/bjsports-2023-106994 REDs 202310. Selección de Ejercicios
Changes in exercises are more effective than in loading schemes to improve muscle strength.
doi:10.1519/JSC.0000000000000539 Variación de ejerciciosTotal number of sets as a training volume quantification method for muscle hypertrophy: a systematic review.
doi:10.1519/JSC.0000000000002776 Cuantificación de volumenThe effects of exercise variation in muscle thickness, maximal strength and motivation in resistance trained men.
doi:10.1371/journal.pone.0226989 Rotación de ejerciciosMuscle force output and electromyographic activity in squats with various unstable surfaces.
doi:10.1519/JSC.0b013e3182541d43 Selección de superficie11. Activación Muscular EMG
Effects of range of motion on muscle development during resistance training interventions: a systematic review.
doi:10.1177/2050312120901559 ROM y desarrollo muscularA comparison of gluteus maximus, biceps femoris, and vastus lateralis electromyographic activity in the back squat and barbell hip thrust exercises.
doi:10.1123/jab.2014-0301 EMG — glúteosEffect of range of motion on muscle strength and thickness.
doi:10.1519/JSC.0b013e31823a3b15 ROM parcial vs. completoEffects of grip width on muscle strength and activation in the lat pull-down.
doi:10.1519/JSC.0000000000000232 EMG — dorsal anchoThe effects of bench press variations in competitive athletes on muscle activity and performance.
doi:10.1515/hukin-2017-0047 EMG — press de bancaFitness-Krafttraining: Die besten Übungen und Methoden für Sport und Gesundheit.
Base de datos EMG — selección de ejerciciosSurface electromyographic activation patterns and elbow joint motion during a pull-up, chin-up, or perfect-pullup rotational exercise.
doi:10.1519/JSC.0b013e3181f1598c EMG — dominadasEffect of the shoulder position on the biceps brachii EMG in different dumbbell curls.
EMG — bíceps12. Volumen y Dosis-Respuesta
Dose-response relationship between weekly resistance training volume and increases in muscle mass: a systematic review and meta-analysis.
doi:10.1080/02640414.2016.1210197 Sets semanales por grupo muscularEffects of resistance training frequency on measures of muscle hypertrophy: a systematic review and meta-analysis.
doi:10.1007/s40279-016-0543-8 Frecuencia de entrenamientoSingle vs. multiple sets of resistance exercise for muscle hypertrophy: a meta-analysis.
doi:10.1519/JSC.0b013e3181d4d436 Series simples vs. múltiplesMesocycle progression in hypertrophy: volume versus intensity.
doi:10.1519/SSC.0000000000000518 Progresión de volumen en mesociclos13. Orden de Ejercicios y Programación
Influence of exercise order on the number of repetitions performed and perceived exertion during resistance exercises.
doi:10.1519/1533-4287(2005)19 Compuestos antes de aisladosEffects of linear vs. daily undulating periodized resistance training on maximal and submaximal strength gains.
doi:10.1519/JSC.0b013e3181e7571b DUP vs. periodización linealEssentials of Strength Training and Conditioning.
Fundamentos de programaciónThe importance of muscular strength: training considerations.
doi:10.1007/s40279-018-0862-z Fuerza como base14. Periodización
Novel resistance training-specific rating of perceived exertion scale measuring repetitions in reserve.
doi:10.1519/JSC.0000000000001049 Escala RPE-RIRProximity to failure and total repetitions performed in a set of resistance exercise: a systematic review with meta-analysis.
doi:10.1007/s40279-021-01626-3 Proximidad al falloSystematic review and meta-analysis of linear and undulating periodized resistance training programs on muscular strength.
doi:10.1519/JSC.0000000000000712 Periodización ondulanteTapering practices of New Zealand's elite raw powerlifters.
doi:10.1519/JSC.0000000000001292 Deload / taperingThe effect of autoregulatory progressive resistance exercise vs. linear periodization on strength improvement in college athletes.
doi:10.1519/JSC.0b013e3181def4a6 Autoregulación15. RPE y Autoregulación
Application of the repetitions in reserve-based rating of perceived exertion scale for resistance training.
doi:10.1519/SSC.0000000000000218 Sistema RPE de TrainOProximity to failure and total repetitions performed in a set of resistance exercise.
doi:10.1007/s40279-021-01626-3 RIR y rendimientoA novel scale to assess resistance-exercise effort.
doi:10.1080/02640414.2012.710757 Escalas de esfuerzo16. Recuperación Muscular
Effects of resistance training frequency on measures of muscle hypertrophy: a systematic review and meta-analysis.
doi:10.1007/s40279-016-0543-8 Frecuencia y recuperaciónInfluence of recovery time on strength and muscle damage responses following heavy resistance exercise.
doi:10.1007/s00421-021-04653-8 Tiempo de recuperación muscularTime course of muscle damage recovery after resistance exercise.
doi:10.3389/fphys.2024.1346735 Modelo de fatiga TrainOISSN exercise & sports nutrition review update: research & recommendations.
doi:10.1186/s12970-018-0242-y Nutrición y recuperaciónACSM's guidelines for exercise testing and prescription.
Guías de descanso entre sesionesEssentials of Strength Training and Conditioning.
Periodos de descanso entre series17. Sueño y Readiness
National Sleep Foundation's sleep time duration recommendations: methodology and results summary.
doi:10.1016/j.sleh.2014.12.010 Readiness — scoring de sueñoSleep and athletic performance: the effects of sleep loss on exercise performance, and physiological and cognitive responses to exercise.
doi:10.1007/s40279-014-0260-0 Sueño y rendimientoSleep and muscle recovery: endocrinological and molecular basis for a new and promising hypothesis.
doi:10.1016/j.mehy.2011.04.017 Sueño y recuperación muscularWHO guidelines on physical activity and sedentary behaviour.
Actividad física y descanso18. Wearables y HRV
Endurance training guided individually by daily heart rate variability measurements.
doi:10.1007/s00421-007-0552-2 HRV y planificación de entrenamientoIndividual endurance training prescription with heart rate variability.
doi:10.1249/MSS.0000000000000910 Prescripción individual por HRVMonitoring training status with HR measures: do all roads lead to Rome?
doi:10.3389/fphys.2014.00073 Monitoreo por HRMonitoring training load to understand fatigue in athletes.
doi:10.1007/s40279-014-0253-z Carga de entrenamientoPrevention, diagnosis, and treatment of the overtraining syndrome: joint consensus statement of the European College of Sport Science and the American College of Sports Medicine.
doi:10.1249/MSS.0b013e318279a10a SobreentrenamientoRecovery and performance in sport: consensus statement.
doi:10.1123/ijspp.2017-0759 Recuperación y rendimientoHeart rate variability: standards of measurement, physiological interpretation, and clinical use.
Estándares HRVPhysical activity and the prevention of coronary heart disease.
Fórmula de FC máximaProgression models in resistance training for healthy adults.
doi:10.1249/MSS.0b013e3181915670 Zonas de frecuencia cardíaca19. Fatiga SNC y Compuestos Pesados
Hormonal responses and adaptations to resistance exercise and training.
doi:10.2165/00007256-200535040-00004 Respuesta hormonal al entrenamientoFundamentals of resistance training: progression and exercise prescription.
doi:10.1249/01.MSS.0000121945.36635.61 Fatiga del SNC20. Prevención de Lesiones y Composición Corporal
Shoulder injuries attributed to resistance training: a brief review.
doi:10.1519/JSC.0b013e3181dc4330 Balance muscular hombroThe effectiveness of exercise interventions to prevent sports injuries: a systematic review and meta-analysis of randomised controlled trials.
doi:10.1136/bjsports-2013-092538 Prevención de lesionesA new concept for isokinetic hamstring: quadriceps muscle strength ratio.
doi:10.1177/03635465980260021201 Ratio H:QBody mass index as a measure of body fatness: age- and sex-specific prediction formulas.
doi:10.1079/BJN19910073 Estimación de grasa corporalSarcopenia and its implications for metabolic health.
doi:10.1155/2019/8031705 Sarcopenia y salud metabólicaTodas las referencias han sido verificadas y corresponden a publicaciones en revistas científicas con revisión por pares (peer-review), organismos internacionales de salud, o textos de referencia en ciencias del deporte. Los algoritmos de TrainO implementan directamente las recomendaciones y rangos establecidos por estas fuentes.