Effects of 8 wk of 16:8 Time-restricted Eating in Male Middle- and Long-Distance Runners
Brady AJ, Langton HM, Mulligan M, Egan B
Medicine and science in sports and exercise · 47 citas
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2020-08-13 · Med Sci Sports Exerc · vol. 53 · número 3 · págs. 633–642
- Editorial
- Lippincott Williams & Wilkins
- Citado
- 68 citas · más que el 94% de estudios similares · 3.8× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 36 trabajos
- Acceso
- De pago
- Áreas de investigación
- Dietary Effects on Health · Muscle metabolism and nutrition · Physical Activity and Health
- Palabras clave
- Respiratory exchange ratio, Medicine, VO2 max, Animal science, Athletes, Triglyceride, Confidence interval, Heart rate, Physical therapy, Internal medicine, Blood pressure, Cholesterol, Biology
- MeSH
- humans, lactic acid, insulin, blood glucose, triglycerides, exercise test, fasting, feeding behavior, body composition, energy intake, eating, physical endurance, running, time factors, adult, middle aged, male, young adult
4 autores
- Aidan J. Brady🇮🇪Dublin City University
- HENRY M. LANGTON🇮🇪Dublin City University
- MOLLIE MULLIGAN🇮🇪🇦🇺University College Dublin; Agriculture and Food; Dublin City University
- Brendan Egan🇺🇸🇮🇪Florida Institute for Human and Machine Cognition; Dublin City University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Purpose
Eight weeks of time-restricted eating (TRE) in concert with habitual exercise training was investigated for effects on body composition, energy and macronutrient intakes, indices of endurance running performance, and markers of metabolic health in endurance athletes.
Methods
Male middle- and long-distance runners (n = 23) were randomly assigned to TRE (n = 12) or habitual dietary intake (CON; n = 11). TRE required participants to consume all of their dietary intake within an 8-h eating window (so-called 16:8 TRE), but dietary patterns, food choices, and energy intake were ad libitum during this window. Participants continued their habitual training during the intervention period. Participants completed an incremental exercise test before (PRE) and after (POST) the 8-wk intervention for the assessment of blood lactate concentrations, running economy, and maximal oxygen uptake. Fasted blood samples were analyzed for glucose, insulin, and triglyceride concentrations. Dietary intake was assessed at PRE, MID (week 4), and POST using a 4-d semiweighed food diary.
Results
Seventeen participants (TRE, n = 10; CON, n = 7) completed the intervention. Training load did not differ between groups for the duration of the intervention period. TRE resulted in a reduction in body mass (mean difference of -1.92 kg, 95% confidence interval = -3.52 to -0.32, P = 0.022). Self-reported daily energy intake was lower in TRE at MID and POST (group-time interaction, P = 0.049). No effect of TRE was observed for oxygen consumption, respiratory exchange ratio, running economy, blood lactate concentrations, or heart rate during exercise, nor were there any effects on glucose, insulin, or triglyceride concentrations observed.
Conclusion
Eight weeks of 16:8 TRE in middle- and long-distance runners resulted in a decrease in body mass commensurate with a reduction in daily energy intake, but it did not alter indices of endurance running performance or metabolic health.
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