The influence of acute dietary nitrate supplementation on skeletal muscle fatigue and recovery in older women.

ABSTRACT: Older individuals fatigue more rapidly during, and recover more slowly from, dynamic exercise. Women are particularly vulnerable to these deleterious effects of aging, which increases their risk of falling. We have shown that dietary nitrate (NO₃ ^- ), a source of nitric oxide (NO) via the NO₃ ^-  → nitrite (NO₂ ^- ) → NO pathway, enhances muscle speed and power in older individuals in the non-fatigued state; however, it is unclear if it reduces fatigability and/or improves recoverability in this population. Using a double-blind, placebo-controlled, crossover design, we studied 18 older (age 70 ± 4 years) women who were administered an acute dose of beetroot juice (BRJ) containing either 15.6 ± 3.6 or <0.05 mmol of NO₃

SUBMITTER: Zoughaib WS 

PROVIDER: S-EPMC10209430 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature