New Zealand blackcurrant extract enhances muscle glycogen storage 📈
A potential additive strategy for pre-exercise fuelling.
New Zealand blackcurrant extract augments muscle glycogen storage at rest and enhances intramuscular triglyceride degradation during prolonged exercise
Study Details
This new crossover study recruited 10 trained males to consume either…
🇳🇿 NZBC extract (600 mg/day)
💊 Placebo
…for 7-days, followed by 120 min cycling at 65% VO2max + an exercise capacity test 🚴♂️
Here is what they found ⬇️
Key Findings
📉 Exercise decreased intramuscular triglyceride (IMTG) content in type I fibres (~44%)
…with net IMTG degradation being greater following NZBC extract compared to placebo 🔍
🔥 Whole-body rates of fat oxidation were ~24% greater following NZBC extract
📈 Pre-exercise muscle glycogen concentrations were greater following NZBC extract (NZBC: 493 ± 85, PLA: 355 ± 65 mmol/kg)
There were no differences between conditions for…
❌ Post-exercise muscle glycogen
❌ Exercise capacity
Conclusion
NZBC extract enhances IMTG utilisation in type I fibres during exercise 🔥
Interestingly, NZBC extract also enhances muscle glycogen storage at rest and therefore may be a useful strategy for fuelling up ahead of prolonged exercise 🔋
Reference
https://pubmed.ncbi.nlm.nih.gov/41128911/
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