Very Well Fit. https://www.verywellfit.com/is-high-impact-exercise-right-for-you-1230821
Diakses pada 30 Agustus 2020Live Fit. https://livefit.com/blogs/livefit/high-impact-vs-low-impact-exercise
Diakses pada 30 Agustus 2020Rothman Orthopaedic Institute. https://rothmanortho.com/stories/blog/high-impact-activities
Diakses pada 30 Agustus 2020