We sought to investigate the effects of 4 weeks of 16/8 time restricted eating (TRE) with windows of 16 hours of fasting and 8 hours of eating) on elite cyclists' performance, metabolic and blood parameters.
Sixteen elite under-23 cyclists were randomly assigned to a TRE group or to a control group (CTRL) with a traditional meal pattern. The TRE group consumed 100% of its estimated daily energy needs in an 8-hour time window: from 10:00 AM (ante meridiem) to 6:00 PM (post meridiem) whilst the CTRL group consumed 100% of its estimated daily energy needs in 3 meals between 7:00 AM and 9:00 PM. During the experimental period, training loads were similar in the two groups. Athletes were tested before and after 4 weeks of the intervention. Body composition , basal metabolism, performances indexes and blood parameters were measured.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Enrollment
16
TRE group consumed 100% of its estimated daily energy needs in an 8-hour time window: from 10:00 AM to 6:00 PM
CTRL group consumed 100% of its estimated daily energy needs in 3 meals between 7:00 AM and 9:00 PM
Nutrition and Exercise Lab, DSB, University of Padova
Padua, Italy
VO2max
Maximal oxygen consumption (in ml O2/Kg/min) measured during a cycloergometer incremental test through a gas analyses
Time frame: 4 weeks
fat mass
fat mass measured through body impedence analyser
Time frame: 4 weeks
lean body mass
lean body mass mass measured through body impedence analyser
Time frame: 4 weeks
white blood cells
white blood cells as thousands per microliter
Time frame: 4 weeks
Eosinophils
Eosinophils as percentage of total white blood cells
Time frame: 4 weeks
Monocytes
Monocytes as percentage of total white blood cells
Time frame: 4 weeks
Basophiles
Basophiles s percentage of total white blood cells
Time frame: 4 weeks
Hematocrit
Hematocrit as percentage
Time frame: 4 weeks
Haemoglobin
Haemoglobin as gram per Liter
Time frame: 4 weeks
Mean cell volume
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
mean cell volume as femtonLiter
Time frame: 4 weeks
mean cell haemoglobin
mean cell haemoglobin as picograms
Time frame: 4 weeks
ESR (Erythrocyte sedimentation rate )
ESR as millimeters per hour
Time frame: 4 weeks
CRP (C-reactive protein)
CRP as milligram per deciliter
Time frame: 4 weeks
Total cholesterol
Total cholesterol as milligram per deciliter
Time frame: 4 weeks
TG (triglycerides)
TG as milligram per deciliter
Time frame: 4 weeks
glucose
glucose as milligram per deciliter
Time frame: 4 weeks
creatinine
creatinine as milligram per deciliter
Time frame: 4 weeks
creatin kinase
creatin kinase as milligram per deciliter
Time frame: 4 weeks
iron
iron as microgram per deciliter
Time frame: 4 weeks
ferritin
ferritin as microgram per liter
Time frame: 4 weeks
transferrin
ferritin as milligram per deciliter
Time frame: 4 weeks
TSH (Thyroid Stimulating Hormone)
TSH as micro international unit per milliliter
Time frame: 4 weeks
T3 (triiodothyronine) free
T3 free as picogram per milliliter
Time frame: 4 weeks
Testosterone free
Testosterone free as picogram per milliliter
Time frame: 4 weeks
IL-6
IL-6 as picogram per milliliter
Time frame: 4 weeks
TNFalfa
TNFalfa as picogram per milliliter
Time frame: 4 weeks
IGF-1
IGF-1 as nanogram per milliliter
Time frame: 4 weeks
Insulin
Insulin micro international unit per milliliter
Time frame: 4 weeks