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Effects of Acute Beta-Alanine Ingestion and Immersion-Plus-Exercise on Connectedness to Nature and Perceived Pain.

  • 2021-07-31
  • International journal of environmental research and public health 18(15)
    • R W Salatto
    • Graham R McGinnis
    • Dustin W Davis
    • Bryson Carrier
    • Jacob W Manning
    • Mark DeBeliso
    • James W Navalta

Study Design

Type
Randomized Controlled Trial (RCT)
Population
Twenty participants
Methods
double-blinded, placebo-controlled, crossover study; acute Beta Alanine (B-ALA) ingestion (6.4 g) vs placebo; 0.8 km up-hill hike after consumption
Blinding
Double-blind
Duration
consecutive days
This double-blinded, placebo-controlled, crossover study examined the effect of induced painful sensation (via acute Beta Alanine (B-ALA) ingestion) on Love and Care of Nature (LCN), heart rate (HR), rating of perceived exertion (RPE), and McGill Pain Questionnaire (MPQ) during outdoor exercise. Twenty participants volunteered on consecutive days to complete a 0.8 km (0.5 mi) up-hill hike after consuming either B-ALA (6.4 g) or placebo. Immediately after consumption participants answered LCN, RPE, and MPQ questionnaires, immersed in a natural environment for 45 min, and then completed a hike as quickly as possible without running. No difference in HR (p = 0.846), or RPE (p = 0.606) were observed between treatments. Total MPQ scores increased with consumption of B-ALA (p = 0.001). An increased LCN score was observed following exercise regardless of condition (p = 0.035). The results demonstrate that acute B-ALA supplementation is effective in increasing perceived pain sensations. The results also demonstrate an increase in LCN in the presence of increased perceptions of pain sensations during exercise.

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