The effect of preprandial versus postprandial physical activity on glycaemia: Meta-analysis of human intervention studies.
Diabetes Res Clin Pract
; 210: 111638, 2024 Apr.
Article
em En
| MEDLINE
| ID: mdl-38548105
ABSTRACT
This meta-analysis aims to investigate the effect of preprandial physical activity (PA) versus postprandial PA on glycaemia in human intervention studies. Medline and Embase.com were searched until February 2023 for intervention studies in adults, directly comparing preprandial PA versus postprandial PA on glycaemia. Studies were screened using ASReview (34,837) and full texts were read by two independent reviewers (42 full text, 28 included). Results were analysed using pooled mean differences in random-effects models. Studies were either acute response studies (n = 21) or Randomized Controlled Trials (RCTs) over multiple weeks (n = 7). In acute response studies, postprandial outcomes followed the expected physiological patterns, and outcomes measured over 24 h showed no significant differences. For the RCTs, glucose area under the curve during a glucose tolerance test was slightly, but not significantly lower in preprandial PA vs postprandial PA (-0.29 [95 %CI-0.66, 0.08] mmol/L, I2 = 64.36 %). Subgroup analyses (quality, health status, etc.) did not significantly change the outcomes. In conclusion, we found no differences between preprandial PA versus postprandial PA on glycaemia both after one PA bout as well as after multiple weeks of PA. The studies were of low to moderate quality of evidence as assessed by GRADE, showed contradictive results, included no long-term studies and used various designs and populations. We therefore need better RCTs, with more similar designs, in larger populations and longer follow-up periods (≥12 weeks) to have a final answer on the questions eat first, then exercise, or the reverse?
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Exercício Físico
/
Glucose
Limite:
Adult
/
Humans
Idioma:
En
Revista:
Diabetes Res Clin Pract
Assunto da revista:
ENDOCRINOLOGIA
Ano de publicação:
2024
Tipo de documento:
Article