Research
Energy balance
Energy availability decreased from 38 ± 3 kcal/kg/FFM to 18 ± 4 kcal/kg/FFM while energy expenditure increased from 24 ± 4 to 44 ± 15 met/h/week from PRE to END.
Practitioners should be aware of the significant changes in energy availability and expenditure during competition preparation.
StrongSupportsmedium confidence
Energy availability decreased (38 ± 3 vs. 18 ± 4 kcal/kg/FFM) while energy expenditure increased (24 ± 4 vs. 44 ± 15, met/h/week from PRE to END.
Why this rating
Based on the longitudinal design of the study.
Source
Impact of The Fitness Competition Preparation on Stress Biomarkers and Sleep
Theo Mbay · Jyväskylä University Digital Archive (University of Jyväskylä) · 2020
cohort · n=8
Read the paper More from this paper
- Nocturnal heart rate variability (HRV) increased from PRE (60 ± 14 ms) to END (69 ± 19 ms) and was strongly associated with the change in fat mass (r= 0.90, p<0.01).Strong
- Sleep time increased by 36 ± 19 min from START to END (7h 36 ± 34 min vs 8h 12 ± 41 min) and sleep disturbances were not observed during the study period.Strong
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