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Effects of Cold-Water and Cold-Air Exercise on Appetite, Energy Intake, and Food Preference

2 de julho de 2026 atualizado por: Marie Hutson, Coventry University

Effects of Exercising in Cold-Water and Cold-Ambient Air Versus a Thermoneutral Equivalent on Appetite, Energy Intake, and Food Preference: A Crossover Study in Healthy Males

This study investigated whether exercising in cold environments affects appetite, energy intake, and food preference compared with exercising in thermoneutral conditions. Eleven healthy males completed five laboratory trials as part of a crossover study: a control trial and four exercise trials performed in cold-water (16°C), thermoneutral water (35°C), cold-ambient air (6°C), and thermoneutral ambient air (26°C). Appetite responses were assessed throughout each trial, and participants were provided with an ad libitum meal after exercise to measure energy intake. Food preference was assessed using the Leeds Food Preference Questionnaire. The study aimed to determine whether environmental temperature and exercise medium influence acute post-exercise eating behaviour.

Visão geral do estudo

Descrição detalhada

Exercise performed in cold environments may influence thermoregulatory responses and subsequent eating behaviour differently compared with exercise performed under thermoneutral conditions. Previous research suggests that cold exposure may increase post-exercise energy intake; however, the influence of environmental temperature and exercise medium (water versus air) on appetite regulation and food-related behaviour remains unclear.

This study used a randomised repeated-measures crossover design to investigate the effects of cold and thermoneutral exercise conditions on appetite, energy intake, and food preference in healthy males.

Eleven healthy males completed five laboratory trials: a no-exercise control condition and four experimental exercise conditions consisting of 30 minutes of arm-leg rowing exercise performed in cold-water (16°C), thermoneutral water (35°C), cold-ambient air (6°C), and thermoneutral ambient air (26°C). Trials were separated by a minimum seven-day washout period.

Appetite responses were assessed using visual analogue scales throughout each trial. Following exercise, participants consumed an ad libitum meal to assess acute post-exercise energy intake. Food preference responses, including food appeal and preference measures, were assessed using the Leeds Food Preference Questionnaire.

The primary objective was to determine whether environmental temperature and exercise medium influence post-exercise energy intake. Secondary objectives were to examine effects on subjective appetite and food preference measures.

This study provides insight into how exercising in different thermal environments may influence immediate eating behaviour following exercise.

Tipo de estudo

Intervencional

Inscrição (Real)

11

Estágio

  • Não aplicável

Contactos e Locais

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Locais de estudo

      • Coventry, Reino Unido, CV1 5FB
        • Centre for Physical Activity, Sport and Exercise Sciences, Research Laboratory, Coventry University

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

  • Adulto
  • Adulto mais velho

Aceita Voluntários Saudáveis

Sim

Descrição

Inclusion Criteria:

  • Healthy males aged 18-65 years
  • Living in the UK
  • Recreationally active and meeting current physical activity guidelines
  • Body mass stable (<2 kg change) during the 3 months prior to the study
  • Able to complete moderate-intensity arm-leg rowing exercise
  • Able to tolerate the cold-water familiarisation/tolerance test
  • Low cognitive restraint score on the Three-Factor Eating Questionnaire Revised
  • 18-item (TFEQ-R18)
  • Able to consume the standardised breakfast and ad libitum pasta meal provided during the study
  • Able to provide written informed consent
  • Willing to complete study questionnaires and experimental assessments
  • Willing to undergo core temperature measurement via self-inserted rectal thermistor and body composition assessment

Exclusion Criteria:

  • Diagnosed cardiovascular, pulmonary, metabolic, or renal disease, or symptoms suggestive of these conditions
  • Any contraindication to moderate-intensity exercise
  • Conditions increasing risk during cold exposure, including history of cold-induced asthma, Raynaud's phenomenon, cold urticaria, or other non-freezing cold injuries
  • Cold-habituated individuals (e.g., regular cold-water swimmers)
  • Current medication known to alter body weight or metabolism
  • Smoking, drug misuse, or alcohol abuse
  • Current musculoskeletal injury or condition that could be worsened by exercise
  • History of eating disorders or restrained eating behaviour
  • Shift work or sleep deprivation affecting study participation
  • Unable to fast before experimental sessions
  • Unable to tolerate the cold-water familiarisation/tolerance procedure
  • Unable to consume the foods provided as part of the standardised breakfast or ad libitum meal due to dietary restrictions or allergies
  • Unable to commit to study requirements

Plano de estudo

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Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Ciência básica
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição cruzada
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Comparador Ativo: Control Condition
Resting control condition with no exercise performed. Participants completed the same standardised laboratory procedures and outcome assessments under resting conditions.
Resting control condition with no exercise exposure.
Experimental: Cold-Water Exercise
Participants completed 30 minutes of arm-leg rowing exercise performed in cold water at 16°C.
Arm-leg rowing exercise performed in 16°C water.
Experimental: Thermoneutral Water Exercise
Participants completed 30 minutes of arm-leg rowing exercise performed in thermoneutral water at 35°C.
Arm-leg rowing exercise performed in 35°C water.
Experimental: Cold-Ambient Air Exercise
Participants completed 30 minutes of arm-leg rowing exercise performed in cold ambient air at 6°C.
Arm-leg rowing exercise performed in 6°C ambient air.
Experimental: Thermoneutral Ambient Air Exercise
Participants completed 30 minutes of arm-leg rowing exercise performed in thermoneutral ambient air at 26°C.
Arm-leg rowing exercise performed in 26°C ambient air.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Post-exercise ad libitum energy intake
Prazo: 30 minutes after completion of the 30-minute experimental/control condition.
Energy intake consumed during an ad libitum homogeneous pasta meal provided after each 30-minute experimental/control condition. The mass of food consumed was determined by subtracting the mass of food remaining (including leftovers on the plate and cutlery). Absolute energy intake was calculated using the nutritional information provided by the food manufacturer.
30 minutes after completion of the 30-minute experimental/control condition.
Subjective appetite responses
Prazo: Before and after breakfast, before the 30-minute experimental/control condition, during the 30-minute experimental/control condition, and before and after the ad libitum meal.
Subjective appetite responses including hunger, fullness, satisfaction, and prospective food consumption assessed using a 100-mm Visual Analogue Scale (VAS) ranging from 0 mm (not at all) to 100 mm (extremely). Higher scores indicate greater subjective appetite sensations.
Before and after breakfast, before the 30-minute experimental/control condition, during the 30-minute experimental/control condition, and before and after the ad libitum meal.
Food preference and food reward responses
Prazo: 15 minutes after completion of each 30-minute experimental/control trial and 15-minutes before the ad libitum meal.
Food preference and reward responses assessed using the Leeds Food Preference Questionnaire (LFPQ). Outcomes include explicit liking, explicit wanting, implicit wanting, and fat and sweet appeal bias scores. Higher scores indicate greater preference or reward response for the respective food category (fat or sweet).
15 minutes after completion of each 30-minute experimental/control trial and 15-minutes before the ad libitum meal.

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Energy expenditure
Prazo: During the 30-minute experimental/control condition.
Energy expenditure during the exercise/control condition estimated from breath-by-breath oxygen consumption and carbon dioxide production using indirect calorimetry.
During the 30-minute experimental/control condition.
Skin temperature and mean body temperature responses
Prazo: 5-minutes before and 5-minutes after the 30-minute experimental/control condition.
Skin temperature was measured at four sites (chest, bicep, thigh, and calf) using skin temperature probes. Mean skin temperature and mean body temperature were calculated to assess changes in peripheral and overall thermal status.
5-minutes before and 5-minutes after the 30-minute experimental/control condition.
Core body temperature
Prazo: During the 30-minute experimental/control condition and during the 60-minute post-exposure recovery period.
Changes in core body temperature measured continuously using a rectal thermistor during and after each experimental/control condition.
During the 30-minute experimental/control condition and during the 60-minute post-exposure recovery period.
Thermal sensation and shivering responses
Prazo: During the 30-minute experimental/control condition at 10-minute intervals.

Thermal sensation was assessed using the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 7-point Thermal Sensation Scale, ranging from -3 (cold) to +3 (hot), where 0 indicates thermal neutrality.

Shivering responses were assessed using the Bedside Shivering Assessment Scale (BSAS) ranging from 0 (no shivering) to 3 (severe shivering), with higher scores indicating greater shivering severity.

During the 30-minute experimental/control condition at 10-minute intervals.

Colaboradores e Investigadores

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Patrocinador

Publicações e links úteis

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Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

7 de janeiro de 2025

Conclusão Primária (Real)

2 de julho de 2025

Conclusão do estudo (Real)

2 de julho de 2025

Datas de inscrição no estudo

Enviado pela primeira vez

26 de junho de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

26 de junho de 2026

Primeira postagem (Real)

2 de julho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

6 de julho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

2 de julho de 2026

Última verificação

1 de julho de 2026

Mais Informações

Termos relacionados a este estudo

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Descrição do plano IPD

Individual participant data will not be shared. Study results will be reported in aggregate form through publications and presentations. Data will be retained securely in accordance with Coventry University research governance and data protection requirements.

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

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