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The Effect of Interval Training on the Speed ​​of 50 Meter Freestyle Swimming in Female Athletes

ACTIVE: Journal of Physical Education, Sport, Health and Recreation · Vol. 15 No. 2 (2026) · hlm. 943–949

DOI
10.15294/active.v15i2.49601
ISSN
2460-724X, 2252-6773
Terbit
2026-06-15
Penerbit
Universitas Negeri Semarang
Bahasa
eng

Abstrak

The 50-meter freestyle swimming speed is an important indicator of sprint swimming performance, so effective training methods are needed to improve the performance of athletes of training age. This study aims to analyze the effect of interval training on the 50-meter freestyle swimming speed of female athletes from the KU IV Central Swimming Club in Pekalongan. The study used a quantitative, quasi-experimental design with a One-Group Pretest–Posttest Design. The study sample consisted of 30 female athletes selected using a purposive sampling technique based on age group IV criteria and training activity. The study was conducted at the Bening Waterboom Swimming Pool in Pemalang Regency for 16 sessions, with training three times a week. The research instrument used a 50-meter freestyle swimming performance test with time measurements using a stopwatch. Data analysis was performed using normality and homogeneity tests, and paired-samples t-tests at the 0.05 significance level. The results showed that the average pretest score of 57.04 seconds decreased to 55.24 seconds in the posttest. The results of the paired-samples t-test showed a p-value of 0.000 (p < 0.05), indicating a significant effect of interval training on increasing 50-meter freestyle swimming speed. The distribution of performance categories also showed an increase in the number of athletes in the good and adequate categories and a decrease in the poor category after the treatment was administered. This performance improvement was influenced by interval training's ability to enhance speed endurance, technical efficiency, and the anaerobic energy system's performance during sprints. Therefore, interval training can be recommended as an effective training method for improving 50-meter freestyle swimming speed performance in development age athletes.

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  • State University of Semarang
  • Chulalongkorn University
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Rekan penulisOrganisasiArtikel bersama
Cahyo YuwonoState University of Semarang2
SupriyonoState University of Semarang2
Adi SState University of Semarang2
Lisa SulistiyanaState University of Semarang1
SulaimanState University of Semarang1
Martin SudarmonoState University of Semarang1
Isna NafidaState University of Semarang1
Ipang SetiawanState University of Semarang1
Mugiyo HartonoState University of Semarang1
Ulya Sekar ArumdhaniState University of Semarang1
Pastika Candra NurjanahState University of Semarang1
Harry PramonoState University of Semarang1
Agus Budi RaharjoState University of Semarang1
Andaru Krisna JatiState University of Semarang1
Muhammad Furqon Al ImamState University of Semarang1
Mohamad AnnasState University of Semarang1
Agus DarmawanState University of Semarang1
Dwi Tiga PutriState University of Semarang1
Ade Bagus PratamaChulalongkorn University1
Cintya DewiState University of Semarang1
Muhammad Chanifuddin HadiansyahState University of Semarang1
Ameilia Sawitri HartonoState University of Semarang1
Bagas Wahyu PrakosoState University of Semarang1
Farid Nur ArdiansyahState University of Semarang1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/journals/peshr/oai, pertama di-harvest 6 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">The Effect of Interval Training on the Speed ​​of 50 Meter Freestyle Swimming in Female Athletes</dc:title>
	<dc:creator xml:lang="en">Wijayanti, Herlinda Tri</dc:creator>
	<dc:creator xml:lang="en">Billiandri, Bhayu</dc:creator>
	<dc:subject xml:lang="en">interval training</dc:subject>
	<dc:subject xml:lang="en">swimming speed</dc:subject>
	<dc:subject xml:lang="en">freestyle</dc:subject>
	<dc:subject xml:lang="en">female athletes</dc:subject>
	<dc:description xml:lang="en">The 50-meter freestyle swimming speed is an important indicator of sprint swimming performance, so effective training methods are needed to improve the performance of athletes of training age. This study aims to analyze the effect of interval training on the 50-meter freestyle swimming speed of female athletes from the KU IV Central Swimming Club in Pekalongan. The study used a quantitative, quasi-experimental design with a One-Group Pretest–Posttest Design. The study sample consisted of 30 female athletes selected using a purposive sampling technique based on age group IV criteria and training activity. The study was conducted at the Bening Waterboom Swimming Pool in Pemalang Regency for 16 sessions, with training three times a week. The research instrument used a 50-meter freestyle swimming performance test with time measurements using a stopwatch. Data analysis was performed using normality and homogeneity tests, and paired-samples t-tests at the 0.05 significance level. The results showed that the average pretest score of 57.04 seconds decreased to 55.24 seconds in the posttest. The results of the paired-samples t-test showed a p-value of 0.000 (p &amp;lt; 0.05), indicating a significant effect of interval training on increasing 50-meter freestyle swimming speed. The distribution of performance categories also showed an increase in the number of athletes in the good and adequate categories and a decrease in the poor category after the treatment was administered. This performance improvement was influenced by interval training's ability to enhance speed endurance, technical efficiency, and the anaerobic energy system's performance during sprints. Therefore, interval training can be recommended as an effective training method for improving 50-meter freestyle swimming speed performance in development age athletes.</dc:description>
	<dc:publisher xml:lang="en">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2026-06-15</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/journals/peshr/article/view/49601</dc:identifier>
	<dc:identifier>10.15294/active.v15i2.49601</dc:identifier>
	<dc:source xml:lang="en">ACTIVE: Journal of Physical Education, Sport, Health and Recreation; Vol. 15 No. 2 (2026); 943-949</dc:source>
	<dc:source>2460-724X</dc:source>
	<dc:source>2252-6773</dc:source>
	<dc:source>10.15294/active.v15i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/journals/peshr/article/view/49601/10150</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2026 ACTIVE: Journal of Physical Education, Sport, Health and Recreation</dc:rights>
</oai_dc:dc>