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Alterations in Running Biomechanics after 12 Week Gait Retraining with Minimalist Shoes.

PMID 32012958 (2020): ground reaction, foot strike — Running economy (study note for endurance athletes).

Last updated/Feb 23, 2026, 10:34 PM

Study note • PMID 32012958

Alterations in Running Biomechanics after 12 Week Gait Retraining with Minimalist Shoes.

International journal of environmental research and public health2020 • DOI 10.3390/ijerph17030818
Evidence C65/100
Action 2: Consider

Worth trying if it fits your goal and context.

ELI5

In plain language

The intervention of 12 week gait retraining with minimalist shoes was established to examine its effect on impact forces, joint mechanics, and vertical stiffness during running. (randomized trial; n=15 recreational runners).

Effects on Running economy are mixed or unclear from the abstract alone. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.

Takeaways

What the abstract suggests

  • Study question: The intervention of 12 week gait retraining with minimalist shoes was established to examine its effect on impact forces, joint mechanics, and vertical stiffness during running.
  • Effects on Running economy are mixed or unclear from the abstract alone.
  • Population: n=15 recreational runners.
  • Protocol cues (title/abstract): 12 Week • 12 week.

Protocol

Protocol (as reported)

  • Intervention/exposure: ground reaction, foot strike (vs comparison group).
  • Dose/time/duration cues in abstract/title: 12 Week • 12 week.
  • Outcomes: Running economy.
  • Replication note: abstracts often omit adherence and timing; confirm details before changing training or supplementation.

Fit

Who it helps, and who should skip it

Who it helps

  • Athletes similar to the study population (n=15 recreational runners) working on biomechanics.
  • Athletes who can measure Running economy with a repeatable workout or time-trial effort.

Who should skip

  • If you have symptoms or conditions that make the intervention risky, get professional guidance.
  • If you’re near race day and can’t safely test, defer the experiment.

Methods

What the study actually did

  • Design: randomized trial.
  • Population: n=15 recreational runners.
  • Comparator: comparison group.
  • Outcomes measured: Running economy.
  • Protocol cues mentioned: 12 Week • 12 week.
  • Source: PubMed PMID 32012958 (2020) — International journal of environmental research and public health.

Results excerpt

What the abstract reports

After training, (1) the loading rate of both groups decreased significantly, and the loading rate of the GR group was lower than that of the MIN group.

Note: excerpts are short; for full context, read the paper.

Limits

Limitations & bias

  • Abstract-only summaries can miss critical details (population, protocol, adherence, and context).
  • Single studies often don’t generalize to your event, history, and training load; treat results as a starting point.
  • If your context differs (elite vs recreational; cycling vs running), adjust expectations and be conservative.
  • This is performance information, not medical advice.

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Sources