A good exercise routine for PI starts with choosing activities you enjoy that match your diagnosis, infection risk, energy level, and overall health.
Choosing Your Workout
In addition to considering your specific PI diagnosis, Gernez recommends considering the following factors when planning an exercise routine.
Your Current Treatment A trainer or exercise professional should know if you are on immunoglobulin replacement, prophylactic antibiotics, biologics, or other treatments.
Your Infection History If you are prone to respiratory infections or have had recent infections, you may need to be more careful about crowded indoor gyms, especially during respiratory virus season.
Your Baseline Energy Level It’s common for fatigue to fluctuate with PI, so the plan may need to change from week to week.
Any Organ Involvement Bronchiectasis, spleen issues, arthritis, or GI disease can affect what types of movement feel safe and realistic.
The Exercise Setting “Outside is better than inside if possible,” says Gernez. If you do exercise indoors, consider ventilation, crowding, and how well shared equipment is cleaned.
Getting Started
When possible, run your the exercise plan by your immunologist (and pulmonologist, if applicable) before you begin, says Gernez. “They can help tailor recommendations, especially if you have more complex disease,” she adds.
Here are tips on how to get started with an exercise program, according to Gernez.
Tell your trainer the basics. Discuss your diagnosis, current treatment, infection history, baseline fatigue, and any limits your doctor has given you. The trainer does not need to be a medical expert, but they should understand that your plan may need to be adjusted.
Start low and progress slowly. Low- to moderate-intensity activity is usually a more realistic starting point than high-intensity training, especially if your symptoms or infections have kept you inactive.
Be careful with water exposure. Activities with higher exposure to pathogens — such as swimming in poorly maintained pools — could be risky for some people with PI.
Pause when you’re sick. Fever, active infection, and the recovery phase after illness are times to step back from exercise, not push harder.
Modifications That May Help
If your fatigue level is higher than usual, you may need to shorten the workout, reduce the intensity, or choose a lower-effort option that day. “It’s normal for capacity to fluctuate with PI,” says Gernez.
If infection risk is high, you may choose an outdoor or at-home workout instead of a gym. If you have lung disease, ask your doctor whether pulmonary rehab, breathing techniques, or supervised exercise would be appropriate, Gernez says.
If you have arthritis, joint pain, or GI issues, your exercise plan may need to be adjusted around those issues, says Gernez. That could mean choosing lower-impact activities, reducing intensity, or working with a PT.
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