Evidence / Hwang et al. · 2020
PQQ during endurance training
Selected research. Study type, product relevance and limitations are shown separately.
Editorial study summary
- Study type
- Randomized, placebo-controlled human trial.
- Product relevance
- Ingredient evidence involving PQQ. The trial did not test the DR.MORGAN formula with CoQ10.
- Sample or population
- 23 men without endurance training.
- Studied dose
- 20 mg/day of PQQ or placebo. Both groups completed supervised endurance training.
- Duration
- 6 weeks.
- Finding
- Aerobic performance did not differ between groups. Fitness measures improved with training across both groups. The PQQ group had higher levels of the muscle marker PGC-1α after training, with no reported body-composition benefit.
- Limitations
- The trial was small and both groups trained. A change in a muscle marker does not establish a performance benefit.
- Study quality
- Controlled training study with separate exercise and biochemical measures. Editorial review was limited to the abstract. No formal risk-of-bias rating was assigned.
- Funding and disclosures
- Funding and conflicts were not verified from the abstract.
The studies discussed here examine ingredients or other formulations. They do not establish results for this DR.MORGAN finished product.