Controlled study
Acute stress, cortisol and intake: the Geliebter experiment
In Geliebter's experiment involving 20 women with obesity, comparing a cold pressor with warm water on counterbalanced days, no statistically significant relationship was found between the cortisol response and food intake.
- Evidence design
- Controlled, counterbalanced crossover experiment; order randomization unverified
- Population and methods
- Original extraction in Portuguese is available in the study details.
Keep in view
- Experiment in 20 women; counterbalanced days, with order randomization unverified in the consulted scope.
- A statistically nonsignificant association does not establish the absence of any relationship.
- Do not extrapolate the acute laboratory stressor to chronic stress or weight loss.
See study details — Cortisol and intake experiment
Study design and methods
Controlled, counterbalanced crossover experiment; order randomization unverified
Original extraction (Portuguese)
População
Vinte mulheres com obesidade, avaliadas em jejum e após um estressor agudo de laboratório.
- Study design
- Experimento controlado cruzado em dois dias contrabalanceados: mão em água gelada por dois minutos versus água morna. A atribuição aleatória da ordem não foi confirmada; não rotular como ensaio randomizado.
- Reported sample count
- 20
- Role of the reported sample count
- Reported study sample; not necessarily the denominator for each outcome
- Included study count
- 1
- Role of the study count
- Single study
- Research question
- A resposta de cortisol a um estressor agudo prediz apetite ou ingestão numa refeição subsequente?
- Qualified findings
- O teste de água gelada aumentou cortisol e estresse percebido, mas não aumentou a ingestão da refeição de teste. A fome e o desejo de comer diminuíram em medições agudas; a concentração de cortisol não apresentou relação significativa com a ingestão subsequente neste experimento.
- Estimand and analysis rules
- Not reported or not verified
- Reason the formal estimand is unavailable
- A complete formal estimand was not extracted from the verified input.
What the curated evidence supports
- In Geliebter's experiment involving 20 women with obesity, comparing a cold pressor with warm water on counterbalanced days, no statistically significant relationship was found between the cortisol response and food intake.
Limitations
- Experiment in 20 women; counterbalanced days, with order randomization unverified in the consulted scope.
- A statistically nonsignificant association does not establish the absence of any relationship.
- Do not extrapolate the acute laboratory stressor to chronic stress or weight loss.
Verification scope
Verified through 2026-11-04 within the consulted scope.
- Bibliographic metadata checked
- Yes
- Original article abstract consulted
- Yes
- Full-text consultation
- Not consulted
- full text verified fields
- Official trial registry consulted
- No
- Statistical analysis plan consulted
- No
- Verification boundary
- Verification is limited to the input's identified abstract/full-text fields. A trial identifier linked by an article does not imply a separate registry review.
Source record
Plasma cortisol levels in response to a cold pressor test did not predict appetite or ad libitum test meal intake in obese women (2012)