Acute effect of beta-alanine supplementation on anaerobic function and muscle fatigue in female athletes

Effects of Acute ß-Alanine supplementation on anaerobic performance and muscle fatigue in athletic female

Status

Active, not recruiting

Phases

Phase 2

Study type

Interventional

Source

IRCT

Registry ID

IRCT20190720044283N2

Enrollment

Registered

2021-09-01

Start date

2021-08-23

Completion date

Unknown

Last updated

2021-11-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prevent depletion of energy resources during physical activity, Reduce or delay muscle fatigue and improve performance, Increase anaerobic power.

Interventions

Intervention 1: Intervention group: Beta-alanine supplementation

The intervention group took 4.5 g of beta-alanine in capsules and the other group took a placebo containing the same amount of sucrose as beta-alanine. One week after the effects of the supplement dis

Eligibility

Sex/Gender

Female

Age

20 Years to 30 Years

Inclusion criteria

Inclusion criteria: Trained girls have had at least 3 regular workout sessions a week in the past year No musculoskeletal injuries and physical problems

Exclusion criteria

Exclusion criteria: Existence of musculoskeletal injury and taking medication or supplements Physician not confirming physical health Alcohol or tobacco consumption

Design outcomes

Primary

Measure	Time frame
Electromyographic (EMG) indices of the quadriceps muscle. Timepoint: Implement the protocol in two steps with a one week wash-out interval and before and after supplementation. Method of measurement: Electromyography device (Muscle Tester ME 3000P8 Mega Electronic Ltd, Finland) with sampling frequency HZ 2000 and bandwidth Hz / 3 Db 450-30.;Maximal Voluntary Contraction (MVC). Timepoint: Before and after supplementation. Method of measurement: Manual Muscle Testing Device (MMT, North coast, USA).;Rate of Perceived Exertion (RPE). Timepoint: Immediately after the fatigue protocol (consecutive side jump). Method of measurement: Borg scale (6-20).;Muscle Pain. Timepoint: Immediately, 24 and 48 hours after the fatigue protocol. Method of measurement: Visual Analogue Scale (VAS).;Muscle Power. Timepoint: Before and after supplementation and Immediately after the fatigue protocol. Method of measurement: Johnson's and Bahamonde Method.;Sense of Fatigue. Timepoint: Immediately, 24 and 48 hours after the fatigue protocol. Method of measurement: Sense of Fatigue Questionnaire.	—

Measure

Time frame

Electromyographic (EMG) indices of the quadriceps muscle. Timepoint: Implement the protocol in two steps with a one week wash-out interval and before and after supplementation. Method of measurement: Electromyography device (Muscle Tester ME 3000P8 Mega Electronic Ltd, Finland) with sampling frequency HZ 2000 and bandwidth Hz / 3 Db 450-30.;Maximal Voluntary Contraction (MVC). Timepoint: Before and after supplementation. Method of measurement: Manual Muscle Testing Device (MMT, North coast, USA).;Rate of Perceived Exertion (RPE). Timepoint: Immediately after the fatigue protocol (consecutive side jump). Method of measurement: Borg scale (6-20).;Muscle Pain. Timepoint: Immediately, 24 and 48 hours after the fatigue protocol. Method of measurement: Visual Analogue Scale (VAS).;Muscle Power. Timepoint: Before and after supplementation and Immediately after the fatigue protocol. Method of measurement: Johnson's and Bahamonde Method.;Sense of Fatigue. Timepoint: Immediately, 24 and 48 hours after the fatigue protocol. Method of measurement: Sense of Fatigue Questionnaire.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr. Javad Mehrabani

Faculty of Physical Education and Sports Sciences, University of Guilan

mehrabanij@guilan.ac.ir+98 911 230 9074

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026