Probiotic yogurt effects on health status and performance of endurance adolescent female swimmer

Probiotic yogurt effects on performance, respiratory and digestive system of endurance adolescent female swimmers

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT2012122311849N1

Enrollment

Registered

2013-01-19

Start date

2009-06-21

Completion date

Unknown

Last updated

2018-02-22

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

Conditions

Performance and respiratory and digestive disease. common cold, Sore throat, Influenza, Gastro-oesophageal reflux disease

Interventions

Intervention 1: Intervention group : Receiving 400 ml yogurt Probiotic containing 4 × 1010 cfu/ml (Colony forming unit per millimeter) comprising of Lactobacillus Acidophilus SPP, Lactobacillus Delbru

Prevention

Intervention group : Receiving 400 ml yogurt Probiotic containing 4 × 1010 cfu/ml (Colony forming unit per millimeter) comprising of Lactobacillus Acidophilus SPP, Lactobacillus Delbrueckii Bulgaricus

Control group: Receiving similar dose of ordinary yogurt

Eligibility

Sex/Gender

Female

Age

11 Years to 17 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria :being healthy; having the 400 meter crawl swimming time less than 6 min. 20 Sec . Exclusion criteria: acute gastrointestinal symptoms ; intake antibiotics for two months before the study.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
VO2max. Timepoint: Harvard Step test will be employed to measure VO2max will be performed at the beginning and end of week eight. Method of measurement: Harvard Step test will be employed to measure VO2max. The athlete step up and down off a 41cm high bench for 3 minutes at a rate 22 steps/minute. On finishing the test the number of heart beats will be counted for 15 seconds. The number of beats will be multiplied in 15 seconds by 4 to give the "step test pulse rate". This final value will be used to assess the athlete's VO2max in ml/kg/min.	—

Measure

Time frame

VO2max. Timepoint: Harvard Step test will be employed to measure VO2max will be performed at the beginning and end of week eight. Method of measurement: Harvard Step test will be employed to measure VO2max. The athlete step up and down off a 41cm high bench for 3 minutes at a rate 22 steps/minute. On finishing the test the number of heart beats will be counted for 15 seconds. The number of beats will be multiplied in 15 seconds by 4 to give the "step test pulse rate". This final value will be used to assess the athlete's VO2max in ml/kg/min.

—

Secondary

Measure	Time frame
Stomachache, vomiting and diarrhea; respiratory infections such as: rhinitis, fever, sore throat, cough, chest ailing breath by sound, ear pain. Timepoint: at the beginning and end of week eight. Method of measurement: All subjects will be asked to record the digestive symptoms such as: stomachache, vomiting and diarrhea; respiratory infections such as: rhinitis, fever, sore throat, cough, chest ailing breath by sound, ear pain; the extent of exercise per meter; the intake of medicine and quantity of the consumed foodstuff product which had been recommended, on the provided questionnaires, daily. The subjects will be advised to refrain from other probiotic products which were outside the project plan.	—

Measure

Time frame

Stomachache, vomiting and diarrhea; respiratory infections such as: rhinitis, fever, sore throat, cough, chest ailing breath by sound, ear pain. Timepoint: at the beginning and end of week eight. Method of measurement: All subjects will be asked to record the digestive symptoms such as: stomachache, vomiting and diarrhea; respiratory infections such as: rhinitis, fever, sore throat, cough, chest ailing breath by sound, ear pain; the extent of exercise per meter; the intake of medicine and quantity of the consumed foodstuff product which had been recommended, on the provided questionnaires, daily. The subjects will be advised to refrain from other probiotic products which were outside the project plan.

—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactLeili Ghadamli

, International Branch, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

leylee61@yahoo.com+98 21 2235 7484

Outcome results

None listed

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