Effects of interval and fartlek training on VO₂max across leg muscle endurance levels

Jurnal Penelitian Pendidikan Indonesia September 11, 2026 Volume 12, Number 1 7 authors

Abstract

This study aimed to compare the effects of interval and fartlek training on VO₂max improvement across different levels of leg muscle endurance. Twenty sports science students participated in a 2 × 2 factorial experiment, VO₂max and leg muscle endurance were assessed using the Multistage Fitness Test and Wall Sit Test, respectively. Data were analyzed using two-way ANOVA. Training method significantly affected VO₂max improvement (F = 21.443, p < .001), as did leg muscle endurance level (F = 160.105, p < .001). However, the interaction between the two factors was not significant (F = 3.905, p = .066). Interval and fartlek training produced different VO₂max adaptations, while leg muscle endurance was independently associated with VO₂max improvement; however, no significant interaction between the two factors was detected.

Authors

  1. Hakim Irwandi Marpaung

    Universitas Cenderawasih

  2. Evi Sinaga

    Universitas Cenderawasih

  3. Ilham Ilham

    Universitas Negeri Padang

  4. Kurdi Kurdi

    Universitas Cenderawasih

  5. Ipa Sari Kardi

    Universitas Cenderawasih

  6. Ansar Ansar

    Universitas Cenderawasih

  7. Irfan Deny Oktavian

    Universitas Cenderawasih

Keywords

No keywords available

References

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