The purpose of this study is to determine whether short-term adherence to a very low calorie diet is effective in improving heart rate variability in obese individuals.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
31
Diabetes & Nutritional Sciences Division, King's College London
London, United Kingdom
Change from baseline in 24 h SDNN (mean of the standard deviations of the normal-to-normal intervals) at day 7
SDNN is a time domain parameter of overall heart rate variability
Time frame: Baseline, day 7
Change from baseline in night-time SDNN (mean of the standard deviations of the normal-to-normal intervals) at day 7
Time frame: Baseline, day 7
Change from baseline in daytime SDNN (mean of the standard deviations of the normal-to-normal intervals) at day 7
Time frame: Baseline, day 7
Change from baseline in 24 h mean IBI (interbeat interval) at day 7
Time frame: Baseline, day 7
Change from baseline in night-time mean IBI (interbeat interval) at day 7
Time frame: Baseline, day 7
Change from baseline in daytime mean IBI (interbeat interval) at day 7
Time frame: Baseline, day 7
Change from baseline in 24 h SDANN (standard deviations of the average normal-to-normal intervals calculated over periods of 5-minutes) at day 7
Time frame: Baseline, day 7
Change from baseline in night-time SDANN (standard deviations of the average normal-to-normal intervals calculated over periods of 5-minutes) at day 7
Time frame: Baseline, day 7
Change from baseline in daytime SDANN (standard deviations of the average normal-to-normal intervals calculated over periods of 5-minutes) at day 7
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Time frame: Baseline, day 7
Change from baseline in 24 h triangular index at day 7
Time frame: Baseline, day 7
Change from baseline in night-time triangular index at day 7
Time frame: Baseline, day 7
Change from baseline in daytime triangular index at day 7
Time frame: Baseline, day 7
Change from baseline in 24 h RMSSD (root mean square of successive differences of normal-to-normal differences) at day 7
Time frame: Baseline, day 7
Change from baseline in night-time RMSSD (root mean square of successive differences of normal-to-normal differences) at day 7
Time frame: Baseline, day 7
Change from baseline in daytime RMSSD (root mean square of successive differences of normal-to-normal differences) at day 7
Time frame: Baseline, day 7
Change from baseline in 24 h pNN50 (% differences between adjacent normal-to-normal intervals that are >50 ms) at day 7
Time frame: Baseline, day 7
Change from baseline in night-time pNN50 (% differences between adjacent normal-to-normal intervals that are >50 ms) at day 7
Time frame: Baseline, day 7
Change from baseline in daytime pNN50 (% differences between adjacent normal-to-normal intervals that are >50 ms) at day 7
Time frame: Baseline, day 7
Change from baseline in 24 h LF (low frequency power) at day 7
Time frame: Baseline, day 7
Change from baseline in night-time LF (low frequency power) at day 7
Time frame: Baseline, day 7
Change from baseline in daytime LF (low frequency power) at day 7
Time frame: Baseline, day 7
Change from baseline in 24 h HF (high frequency power) at day 7
Time frame: Baseline, day 7
Change from baseline in night-time HF (high frequency power) at day 7
Time frame: Baseline, day 7
Change from baseline in daytime HF (high frequency power) at day 7
Time frame: Baseline, day 7
Change from baseline in 24 h LF/HF at day 7
Time frame: Baseline, day 7
Change from baseline in night-time LF/HF at day 7
Time frame: Baseline, day 7
Change from baseline in daytime LF/HF at day 7
Time frame: Baseline, day 7
Change from baseline in 24 h VLF (very low frequency power) at day 7
Time frame: Baseline, day 7
Change from baseline in night-time VLF (very low frequency power) at day 7
Time frame: Baseline, day 7
Change from baseline in daytime VLF (very low frequency power) at day 7
Time frame: Baseline, day 7