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Long-term impact of the metabolic status on weight loss-induced health benefits
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Long-term impact of the metabolic status on weight loss-induced health benefits
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Journal Article
Long-term impact of the metabolic status on weight loss-induced health benefits
2022
Overview
Background
While short-term effects of weight loss on quality of life and metabolic aspects appear to be different in metabolically healthy (MHO) and metabolically unhealthy obese (MUO), respective long-term data is still missing. Given the high relevance of long-term changes, we aimed to address these in this post-hoc analysis of the MAINTAIN trial.
Methods
We analyzed 143 overweight/obese subjects (BMI ≥ 27 kg/m
2
, age ≥ 18 years) before and after a 3-month weight loss program (≥ 8% weight loss), after a 12-month period of a randomized weight maintenance intervention (n = 121), and after another 6 months without intervention (n = 112). Subjects were retrospectively grouped into MHO and MUO by the presence of metabolic syndrome and secondarily by estimates of insulin sensitivity (HOMA-IR and ISI
Clamp
). Quality of life (QoL), blood pressure, lipids, HOMA-IR, and ISI
Clamp
were assessed and evaluated using mixed model analyses.
Results
Despite similar short- and long-term weight loss, weight loss-induced improvement of HOMA-IR was more pronounced in MUO than MHO after 3 months (MHO: 2.4[95%-CI: 1.9–2.9] vs. 1.6[1.1–2.1],
p
= 0.004; MUO: 3.6[3.2–4.0] vs. 2.0[1.6–2.4],
p
< 0.001;
p
= 0.03 for inter-group comparison). After 21 months, the beneficial effect was no longer seen in MHO (2.0[1.5–2.6],
p
= 1.0), while it remained partially preserved in MUO (2.9[2.4–3.3],
p
= 0.002). QueryShort-term improvements of lipid parameters were similar in both groups. However, long-term improvements of HDL-cholesterol and triglycerides were only seen in MUO (44.4[41.5–47.4] vs. 49.3[46.2, 52.3] mg/dl,
p
< 0.001; 176.8[158.9–194.8] vs. 138.8[119.4–158.3] mg/dl,
p
< 0.001, respectively) but not in MHO. Weight loss-induced improvements in the QoL and particularly the physical health status were maintained in MUO until the end of the trial, while benefits disappeared over time in MHO. Group allocation by HOMA-IR and ISI
Clamp
revealed higher benefits for MUO mainly in parameters of the glucose metabolism and QoL.
Conclusions
Our data demonstrates stronger and longer-lasting improvements of metabolism and QoL in MUO after weight loss.
Trial registration
(ClinicalTrials.gov): NCT00850629. Registered 25 February 2009,
https://clinicaltrials.gov/ct2/show/NCT00850629
.
