SupplementsExercise

Early home-based pulmonary rehabilitation is feasible and safe for post-hospitalisation exertional hypoxaemia patients, but adding high-flow nasal oxygen reduces adherence.

This pilot feasibility trial found that a 3-week home-based pulmonary rehabilitation program for patients with exertional hypoxaemia after hospital discharge had 67% acceptance and 62% uptake. However, the addition of high-flow nasal oxygen during exercise training was associated with lower program completion (60% vs 89%) and reduced adherence to self-directed sessions.

Last updated: Jul 8, 2026•1 RCTs•📖 Read as article →

Evidence Score

Evidence Score44/100
Human RCT★★☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. High-Flow Nasal Oxygen in Early Home Pulmonary Rehabilitation for Exertional Hypoxaemia: A Pilot Randomised Feasibility Trial.

observational

Mok Y, Foong JW, Wong HS, Shih-Yen EC, Hassan N, Klainin-Yobas P, Soh LC, Soh A, Tan SH, Koh XH, Tan PC, Wong KKH · Respirology (Carlton, Vic.) (2026)

Participants: N/A
Duration: 3 weeks (intervention), 4 weeks follow-up
Intervention: Early, intensive, home-based pulmonary rehabilitation program with or without high-flow nasal oxygen during exercise training, starting within 1 week of hospital discharge.
Outcome: Feasibility (acceptance, uptake, completion), adherence to self-directed exercise sessions, and 1-min sit-to-stand test change at 4 weeks.
Effect Size: Adjusted difference in mean change for 1-min sit-to-stand test in COPD patients: -0.8 repetitions (95% CI -4.7 to 3.1).
Population: Post-hospitalisation patients with exertional hypoxaemia across respiratory conditions (including COPD).

Result:

PubMed: 42397015DOI: 10.1002/resp.70277

Mechanism Graph

Patients with exertional hypoxaemia experience rapid deconditioning after hospital discharge
↓
Early pulmonary rehabilitation is limited by exercise intolerance and access barriers
↓
High-flow nasal oxygen may alleviate exertional hypoxaemia during exercise
↓
Home-based PR with HFO showed lower adherence and completion rates than PR alone

Limitations

  • ⚠Pilot feasibility trial with small sample size (56 patients randomised, 52 completed follow-up)
  • ⚠Lower adherence in HFO-PR group may reflect implementation challenges rather than efficacy of HFO itself

Frequently Asked Questions

What is exertional hypoxaemia?▼

Exertional hypoxaemia is a condition where blood oxygen levels drop significantly during physical activity, often occurring in patients with chronic respiratory diseases after hospitalisation.

Did high-flow nasal oxygen improve exercise capacity in this study?▼

No, the study did not show a significant improvement in exercise capacity (1-min sit-to-stand test) with HFO compared to PR alone; the adjusted difference was -0.8 repetitions with wide confidence intervals.

Why was adherence lower in the HFO-PR group?▼

Participants reported challenges with the HFO system during unsupervised exercise, which likely contributed to reduced adherence to self-directed sessions.

Is home-based pulmonary rehabilitation safe for these patients?▼

Yes, the study concluded that early home-based PR for post-hospitalisation exertional hypoxaemia patients is feasible and safe.

Products

Affiliate links coming soon. We only recommend products that match the doses and forms used in the cited research.

References

  1. 1.Mok Y, Foong JW, Wong HS, Shih-Yen EC, Hassan N, Klainin-Yobas P, Soh LC, Soh A, Tan SH, Koh XH, Tan PC, Wong KKH. "High-Flow Nasal Oxygen in Early Home Pulmonary Rehabilitation for Exertional Hypoxaemia: A Pilot Randomised Feasibility Trial.." Respirology (Carlton, Vic.), 2026. PMID: 42397015 DOI: 10.1002/resp.70277
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.