A single session of resistance exercise does not reduce postprandial lipaemia

Area of Science:

• Exercise Physiology
• Metabolic Health

Background:

• Postprandial lipaemia, the transient increase in blood triacylglycerol (TAG) after a meal, is a risk factor for cardiovascular disease.
• Resistance exercise is a common form of physical activity, but its acute effects on postprandial lipaemia are not well-established.

Purpose of the Study:

• To investigate the acute effect of a single resistance exercise session on postprandial lipaemia in healthy men.
• To determine if resistance exercise influences the plasma TAG response to a standardized test meal.

Main Methods:

• Eleven healthy, normolipidaemic men participated in a randomized, counterbalanced crossover study.
• Participants completed two trials: one following a resistance exercise session and one control (inactive) trial.
• A standardized high-fat meal was consumed, and venous blood samples were collected for 6 hours to measure plasma TAG concentrations.

Main Results:

• Fasting plasma TAG concentrations were similar between the resistance exercise and control trials.
• The 6-hour area under the plasma TAG concentration-time curve did not significantly differ between the two trials.
• No significant reduction in postprandial lipaemia was observed after a single session of resistance exercise.

Conclusions:

• A single session of resistance exercise does not appear to acutely reduce postprandial lipaemia in healthy young men.
• Further research is needed to explore the effects of different exercise modalities, intensities, and durations on postprandial lipid metabolism.