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PPCSexRx

Prescribe Sub-Symptom Exercise for Adolescent Concussion

Clinical decision support R package for sub-symptom threshold aerobic exercise (SSTAE) in adolescents with persistent post-concussion symptoms (PPCS). Implements an evidence-based protocol from Li (2026), winner of the 2026 NATA Foundation Best Summary Evidence Research Award.

GRADE: LOW certainty | Conditional recommendation FOR
For licensed clinicians only. Not a substitute for clinical judgement.

Evidence synthesis: OSF 10.17605/osf.io/kvuf6
Project site: guanglab.org


Features

Function Purpose
screen_ppcs() Eligibility and safety screening
prescribe_ppcs() BCTT-guided (80% HRST) or age-predicted prescription
track_progress() Session log, HR progression, stop-if-worsen rules

Installation

install.packages("PPCSexRx")

Requirements: R ≥ 4.0


Quick start

library(PPCSexRx)

screen_ppcs(age = 16, days_post_injury = 35)
rx <- prescribe_ppcs(age = 16, days_post_injury = 35, hrst = 165)
print(rx)

log <- NULL
tr <- track_progress(log, pcss = 30, duration_min = 20, achieved_hr = 120, rx)

See vignette("PPCSexRx") after installation.


Citation

Primary evidence synthesis:

Li G (2026). Sub-symptom Threshold Aerobic Exercise for Adolescents With PPCS: A Critically Appraised Topic. Winner, 2026 NATA Foundation Best Summary Evidence Research Award. https://doi.org/10.17605/osf.io/kvuf6


License

MIT — see LICENSE.

Author

Guang Licontact@guanglab.org
PhD Student, Idaho State University · Guang Lab
ORCID 0009-0004-2807-9029

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.