Long-Term Beetroot Extract Supplementation Improves Morphological Muscle Quality and Rate of Force Development in Postmenopausal Women: A Randomized Clinical Trial - PubMed
4 hours ago
- #dietary supplements
- #muscle function
- #postmenopausal health
- Long-term beetroot extract supplementation (12 weeks) improves morphological muscle quality and rate of force development (RFD) in postmenopausal women.
- The study was a randomized, double-blind, placebo-controlled trial involving 20 postmenopausal women.
- Participants consumed either nitrate-rich beetroot extract (548 mg nitrate/day) or nitrate-depleted beetroot extract (43 mg nitrate/day).
- Significant increases in serum nitrate and nitrite levels were observed in the nitrate-rich beetroot extract group.
- Improvements in early-phase and late-phase RFD were noted, with gains maintained through week 12.
- Morphological muscle quality improved significantly in the nitrate-rich beetroot extract group.
- Maximal voluntary isometric contraction (MVIC) increased at week 12 in the nitrate-rich beetroot extract group, though no significant interaction effect was found.
- The findings suggest potential clinical benefits for preventing muscle function decline in postmenopausal women.