Effect of low-volume interval training on whole-body, abdominal and visceral fat in adults living with overweight and obesity: A systematic review and meta-analysis.
- 2025-09-25
- Journal of sports sciences 43(22)
- Xiangui Zhu
- Jiao Jiao
- Wei Liang
- Xiang Wang
- Haifeng Zhang
- PubMed: 40999737
- DOI: 10.1080/02640414.2025.2559518
Study Design
- Type
- Meta-Analysis
- Sample size
- n = 1,831
- Population
- adults with overweight and obesity
- Methods
- Systematic review and meta-analysis of 56 studies examining low-volume interval training (LV-IT), including LV-HIIT and SIT, versus non-exercise control or moderate-intensity continuous training
- Funding
- Unclear
This systematic review and meta-analysis examined the impact of low-volume interval training (LV-IT), encompassing both low-volume high-intensity interval training (LV-HIIT) and sprint interval training (SIT), on whole-body, abdominal and visceral fat in adults with overweight and obesity. Fifty-six studies involving 1831 participants were analysed, focusing on outcomes such as whole-body fat mass, body fat percentage, abdominal fat, and visceral fat reduction. LV-IT demonstrated significant reductions in whole-body, abdominal and visceral fat compared to non-exercise control groups (CON), with standardised mean differences (SMD) of -0.62 for whole-body fat mass, -0.85 for body fat percentage, -0.65 for abdominal fat, and -0.90 for visceral fat (all p < 0.001). When compared to moderate-intensity continuous training (MICT), LV-HIIT showed a significantly greater effect in reducing visceral fat (SMD: -0.53, p = 0.01). Notably, no significant differences were observed between LV-IT and high-volume HIIT (HV-HIIT) in fat reduction outcomes. These findings suggest that LV-IT (including LV-HIIT and SIT) may reduce whole-body fat mass, abdominal and visceral fat in adults with overweight and obesity, and the reductions were not different from HV-HIIT. Moreover, LV-HIIT, but not SIT may reduce visceral fat superior to MICT; however, certainty of evidence is low.