Can You Exercise with a UTI or Bronchitis? Practical Guidance for Safe Training While Ill

Table of Contents

1. Key Highlights:
2. Introduction
3. How UTIs Interact with Physical Activity
4. Practical Guidelines for Exercising with a UTI
5. When a UTI Becomes Serious: Red Flags and Complications
6. Returning to Training after a UTI: A Progressive Plan
7. Bronchitis: Pathophysiology and How Exercise Plays a Role
8. Safe Approaches to Exercise with Bronchitis
9. Breathing Techniques and Practical Steps to Improve Exercise Tolerance
10. Medication Management and Safety Considerations during Exercise
11. Structured Session Examples for Bronchitis and UTIs
12. Special Populations: Pregnant People, Older Adults, and Competitive Athletes
13. Real-World Examples: How Decisions Play Out
14. Monitoring and Objective Metrics to Guide Decisions
15. When to Stop Exercise Immediately: Red Flags
16. Preventing Infection-Related Setbacks in Training Plans
17. The Role of Clinicians, Physical Therapists, and Coaches
18. Addressing Misconceptions and Common Questions
19. Long-Term Considerations: Recurrent UTIs and Chronic Respiratory Conditions
20. Ethical and Performance Considerations for Competitive Athletes
21. Practical Checklist: Should You Exercise Today?
22. Final thoughts on balancing fitness and illness
23. FAQ

Key Highlights:

• Mild urinary tract infections or bronchitis may allow reduced, low-impact exercise, but fever, systemic symptoms, or worsening respiratory distress require rest and medical review.
• Hydration, symptom monitoring, medication adherence, and adjustments to intensity are central to safe exercise; specific breathing techniques and pelvic-floor considerations improve tolerance and recovery.
• Clear return-to-exercise criteria, red-flag signs for immediate care, and tailored plans for athletes, pregnant people, and older adults reduce complications and speed recovery.

Introduction

The question of whether to keep training while battling a urinary tract infection (UTI) or bronchitis surfaces frequently among recreational exercisers and competitive athletes alike. The answer depends on more than a yes-or-no judgment. It rests on symptom severity, the type of exercise planned, your medical treatment, and how your body responds during activity. Programs designed for peak performance place stress on immune and musculoskeletal systems. When an infection arrives, those stresses influence recovery and, in some cases, can worsen the illness. Practical decisions—what to do today, how to modify intensity, and when to consult a clinician—matter more than blanket rules. The following analysis sets out clear, evidence-informed guidance you can use to decide whether to exercise, how to adapt training, and when to seek medical attention.

How UTIs Interact with Physical Activity

A urinary tract infection arises when bacteria proliferate in the urinary tract. Symptoms typically include painful urination (dysuria), increased urinary frequency, urgency, lower abdominal discomfort, and sometimes visible blood. When infection spreads beyond the bladder to the kidneys (pyelonephritis), fever, chills, and flank pain occur, and the medical urgency escalates.

Exercise affects UTIs through three practical mechanisms:

• Mechanical pressure: High-impact movements and heavy lifting increase intra-abdominal and pelvic pressure. That can heighten bladder discomfort and strain pelvic-floor tissues already irritated by infection.
• Hydration and urine concentration: Intense exercise without adequate fluid replacement concentrates urine, which may irritate the bladder lining and slow clearance of bacteria.
• Immune and physiological stress: Vigorous training temporarily alters immune function and diverts resources that the body would otherwise use to fight infection.

Those mechanisms explain why a short walk or restorative yoga can feel tolerable during a mild UTI, while a long tempo run or heavy strength session often worsens symptoms.

Practical Guidelines for Exercising with a UTI

Severity assessment is the first step. Mild urinary symptoms confined to the lower tract and no systemic signs can often be managed with conservative training modifications and medical treatment as indicated. Fever, shaking chills, flank pain, or significant blood in urine signal a need to stop exercise and seek medical care.

Actionable rules:

• Prioritize hydration: Drink frequently and monitor urine color. Pale straw-colored urine indicates adequate hydration. For sessions under one hour, 250–500 ml of water before and during exercise is a sensible starting point; longer or sweat-heavy sessions require electrolyte-containing fluids to replace sodium and other minerals.
• Reduce impact and load: Replace running and plyometrics with walking, stationary cycling on low resistance, or gentle swim sessions if tolerated. Avoid heavy lifting that increases pelvic pressure until symptoms resolve.
• Time workouts around medication: If prescribed antibiotics, many people notice symptom improvement within 24–72 hours. Avoid pushing intensity in that window; if systemic symptoms persist, stop training and follow up with your clinician.
• Aftercare hygiene: Urinate after exercise. Shower and change damp clothing promptly to reduce bacterial colonization risk around the urethra. For those who use public facilities, respectful hygiene—washing hands, drying thoroughly—reduces additional exposure to pathogens.
• Pelvic-floor awareness: Many people unconsciously clench pelvic-floor muscles when urinating with pain or urgency. Pelvic-floor physiotherapy can help restore coordination and reduce pain that might otherwise be aggravated by running or heavy lifting.

Sample session adjustments for a mild UTI:

• Low-impact aerobic day: 20–40 minutes walking or stationary cycling at conversational pace. Keep intensity below what causes breathlessness.
• Mobility and restorative session: 30 minutes of gentle yoga focused on hip-openers, diaphragmatic breathing, and pelvic-floor relaxation—avoid prolonged inversions or deep abdominal work that increases intra-abdominal pressure.
• Strength maintenance: Light resistance, high-repetition sets (12–20 reps), and avoidance of Valsalva maneuvers. Emphasize controlled tempo and breathing.

If symptoms worsen during exercise—rising fever, sharp pelvic pain, visible blood in the urine, or dizziness—stop immediately and contact a healthcare provider.

When a UTI Becomes Serious: Red Flags and Complications

A lower-tract UTI that progresses to the kidneys is a different clinical entity. Signs of upper-tract involvement include sustained fever (>38°C/100.4°F), flank tenderness, nausea, or vomiting. Kidney infections require prompt medical evaluation and often more intensive treatment, sometimes intravenous antibiotics.

Other complications relevant to exercisers:

• Hematuria (blood in urine): Moderate-to-heavy bleeding requires investigation. Exercise-related dehydration can increase the visibility of blood in concentrated urine, but bleeding should never be ignored.
• Recurrent infections: Athletes with repeated UTIs need evaluation for risk factors—anatomic issues, incomplete bladder emptying, or behavioral contributors such as long-term use of wet gear after training.
• Pelvic-floor dysfunction: Untreated pain and compensatory muscle patterns can complicate return-to-sport. Early referral to a pelvic-floor physical therapist shortens recovery and reduces re-injury risk.

Returning to Training after a UTI: A Progressive Plan

Avoid resuming high-intensity or long-duration workouts immediately after symptoms resolve. Structured progression minimizes relapse risk.

• Step 1 (0–48 hours symptom improvement): Light activity—walking, gentle mobility, and daily movement. Continue prescribed antibiotics and hydration.
• Step 2 (48–72 hours): Introduce low-intensity aerobic work for 20–40 minutes if symptoms remain stable. Add light resistance work without straining the pelvic floor.
• Step 3 (3–7 days): Gradually increase volume and intensity. Monitor symptoms hourly during sessions for any pelvic discomfort, urgency, or worsening urinary symptoms.
• Step 4 (after full symptom resolution and medical clearance if indicated): Reintroduce higher-impact and maximal-effort sessions progressively over 1–2 weeks.

Athletes should log symptoms and session RPE (rate of perceived exertion). Any upward trend in urinary symptoms warrants regression to a prior step and clinical re-evaluation.

Bronchitis: Pathophysiology and How Exercise Plays a Role

Bronchitis denotes inflammation of the bronchial tubes. Acute bronchitis usually stems from viral infections and produces cough, mucus production, wheeze, chest tightness, and shortness of breath. Chronic bronchitis, often associated with long-term smoke exposure or chronic obstructive pulmonary disease (COPD), involves persistent cough and sputum production.

Exercise influences bronchitis via:

• Increased ventilatory demand: Exercise raises minute ventilation. Inflamed airways respond with bronchoconstriction, wheeze, and increased work of breathing.
• Environmental exposure: Cold, dry air or polluted outdoor air can trigger bronchospasm and worsen cough.
• Symptom amplification: Heavy exertion can transform a manageable cough into prolonged irritation and hinder recovery.

Distinguishing acute from chronic bronchitis and noting systemic symptoms guides the exercise decision.

Safe Approaches to Exercise with Bronchitis

Assess symptom pattern before training. The “neck rule,” commonly applied to upper respiratory infections, offers a practical starting point: symptoms above the neck (runny nose, sneezing) may permit light activity; symptoms that include systemic signs (fever, body aches), chest congestion, or productive cough suggest rest. For bronchitis specifically, coughing and wheeze indicate airway irritation that can worsen with exertion.

Actionable recommendations:

• Hold intensity and duration: Replace intervals or hard aerobic sessions with steady-state walking, easy stationary cycling, or elliptical workouts at low resistance.
• Monitor breathing response: Stop if you experience sudden breathlessness, chest tightness, or lightheadedness. Use an inhaler if prescribed and follow your asthma or COPD action plan.
• Avoid poor air quality: Refrain from outdoor exercise during high pollution days, heavy pollen counts, or extreme cold. Use well-ventilated indoor spaces with filtration when available.
• Prioritize warm-up and cool-down: A prolonged, gradual 10–20 minute warm-up raises airway temperature and reduces airway hyperresponsiveness. A slow cool-down prevents sudden drops in airway temperature that can trigger bronchospasm.
• Hydration and humidification: Warm, humid air soothes irritated airways. Consider brief sessions in a humidified environment or using a scarf over the mouth and nose in cold weather to warm inspired air.
• Breathing techniques: Incorporate diaphragmatic breathing and pursed-lip breathing to improve ventilation efficiency and reduce dynamic hyperinflation. These techniques often translate to better tolerance during low-intensity exercise.

If bronchitis features fever, significant shortness of breath at rest, or oxygen desaturation, defer exercise and seek medical care.

Breathing Techniques and Practical Steps to Improve Exercise Tolerance

Teaching patients simple breathing exercises reduces symptoms and speeds return to activity. Two effective techniques are diaphragmatic breathing and pursed-lip breathing. These are suitable for bronchitis and for people with deconditioned breathing patterns.

Diaphragmatic breathing (how to):

1. Sit or lie comfortably with one hand on the chest and one on the belly.
2. Inhale slowly through the nose for 2–3 seconds, letting the belly expand while the chest remains relatively still.
3. Exhale slowly through pursed lips for 3–4 seconds, feeling the belly fall.
4. Repeat for 5–10 minutes, twice daily, and use before exercise to calm breathing patterns.

Pursed-lip breathing (how to):

1. Inhale slowly through the nose for about two seconds.
2. Purse the lips as if whistling.
3. Exhale slowly through pursed lips for four to six seconds, controlling the airflow.
4. Use during exertion to slow breathing rate and ease shortness of breath.

Integrating these techniques into warm-ups and during recovery intervals helps maintain ventilation control during sessions and reduces the risk of exercise-induced bronchospasm.

Medication Management and Safety Considerations during Exercise

Those with bronchitis frequently use bronchodilators, inhaled corticosteroids, or expectorants. UTIs are managed with antibiotics; symptomatic care includes analgesics and fluids.

Practical points:

• Have inhalers accessible during workouts. Use short-acting bronchodilators before exercise when prescribed for exercise-induced bronchospasm.
• Finish the first 24–48 hours of antibiotics cautiously. Symptom improvement is common during that period, but systemic signs may persist despite initial relief.
• Review potential medication side effects that affect exercise—some cough suppressants may increase drowsiness; certain antibiotics (e.g., fluoroquinolones) have rare but serious musculoskeletal side effects that warrant caution with heavy resistance training.
• Discuss medication timing with your prescriber. Taking bronchodilators 15–30 minutes before exercise often enhances tolerance.

Always check medication labels and communicate with your clinician about training plans if you have chronic respiratory disease or ongoing infections.

Structured Session Examples for Bronchitis and UTIs

Concrete sample sessions help translate guidance into practice. These plans assume mild symptoms, stable vitals, and no fever. If any red flags exist, stop.

Mild bronchitis — recovery session (30–40 minutes)

• 10–15 minute warm-up: gentle walking with diaphragmatic breathing.
• 15–20 minute steady-state aerobic: elliptical or stationary bike at conversational pace.
• 5–10 minute cool-down: slow walking and pursed-lip breathing.
• Finish with light mobility and stretching focusing on thoracic expansion.

Acute bronchitis — very light session (15–20 minutes)

• Gentle mobility and breathing exercises only: diaphragmatic breathing (5–10 minutes), shoulder rolls, thoracic rotations.
• Avoid moderate-to-high heart rate training until cough lessens and bursts of breathlessness abate.

Mild UTI — maintenance session (30–40 minutes)

• 5–10 minute warm-up: walking and dynamic mobility.
• 20–25 minutes low-impact cardio: stationary bike at low resistance or pool walking if comfortable.
• 5–10 minutes light resistance: bodyweight or light dumbbells (12–20 reps).
• Post-session: urinate, hydrate, and change out of damp clothing.

Severe UTI or kidney infection

• No exercise. Seek immediate medical evaluation.

These sessions aim to maintain movement while prioritizing recovery. Track symptoms in a training log and regress if any worsening occurs.

Special Populations: Pregnant People, Older Adults, and Competitive Athletes

Pregnant people: UTIs are common during pregnancy and require prompt medical treatment due to higher risk of ascending infections. Exercise during a treated, mild UTI can be acceptable with clearance from an obstetric clinician; avoid activities that cause significant discomfort or overheating. Bronchitis during pregnancy demands careful monitoring because oxygen delivery matters for both mother and fetus—consult obstetric care before exercising.

Older adults: Age-related changes in immune function, bladder emptying, and respiratory capacity increase the risk of complications. Conservative approaches apply: lower intensities, shorter durations, and closer symptom surveillance. Oxygen saturation monitoring during respiratory illness is helpful; sustained SpO2 below 92% requires prompt medical assessment.

Competitive athletes: The pressure to maintain fitness complicates decisions. Structured tapering and close communication with sports medicine providers help. A high-performance swimmer with mild bronchitis may switch to low-intensity resistance training focusing on strength maintenance while avoiding pool sessions if cough and mucus production are prominent. Continued high-intensity training during systemic illness risks prolonged recovery and decreased performance.

For all groups, individualization matters. Baseline fitness, comorbid conditions, and access to medical care shape safe choices.

Real-World Examples: How Decisions Play Out

Case 1 — Recreational runner with UTI: A 32-year-old woman presented with dysuria and urinary urgency the morning of a scheduled 10 km race. She had no fever. Her clinician diagnosed a lower UTI and prescribed antibiotics. She switched plans: walked for 30 minutes, delayed the race, hydrated regularly, and resumed light jogging three days after starting treatment when symptoms subsided. She avoided long-distance race until symptoms resolved and she completed a graded return to run.

Case 2 — CrossFit athlete with bronchitis: A 28-year-old CrossFit athlete developed a hacking cough and sore chest during a week of heavy training. She worked with the team physician, who advised stopping high-intensity interval sessions. She continued daily diaphragmatic breathing, light kettlebell complexes at reduced load (focusing on technique), and 20–30 minutes of steady cycling at low intensity. Symptoms improved over a week, and she returned to full training after two more days of graded intensification.

These examples illustrate pragmatic trade-offs—retaining fitness through reduced-intensity work while preventing complications.

Monitoring and Objective Metrics to Guide Decisions

Subjective symptoms are primary, but objective measurements support decisions:

• Resting heart rate: A sustained elevation of >10 beats per minute above baseline suggests ongoing physiological stress; reduce intensity and volume.
• Sleep quality and appetite: Both decline with systemic illness; prioritize recovery.
• Pulse oximetry: For bronchitis and respiratory complaints, a resting SpO2 below 92% needs urgent evaluation. Portable pulse oximeters are useful for older adults and those with chronic lung disease.
• Urine color and volume: For UTIs, dark, concentrated urine implies dehydration; aim for frequent, paler urine.
• RPE (rate of perceived exertion): Keep sessions in the easy-to-moderate range (RPE 3–5 on a 10-point scale) when recovering.

Logs that combine symptoms with these metrics provide clinicians and coaches with a clearer picture and prevent premature return to high loads.

When to Stop Exercise Immediately: Red Flags

Stop exercising and seek medical care if you experience any of the following:

• Fever above 38°C (100.4°F).
• New or worsening chest pain, significant shortness of breath, or oxygen desaturation.
• Flank pain, severe pelvic pain, persistent vomiting, or inability to tolerate fluids.
• Visible blood in the urine or sudden, severe urinary pain.
• Rapid heart rate out of proportion to effort or dizziness and fainting.

Prompt action reduces the risk of complications.

Preventing Infection-Related Setbacks in Training Plans

Coaches and athletes can reduce the frequency and impact of infections with practical strategies:

• Periodize training: Plan hard training blocks with built-in recovery weeks to reduce cumulative immune stress.
• Prioritize sleep: Sleep deficits impair immune defense and increase susceptibility to both UTIs (through behavioral mechanisms like delayed urination) and respiratory infections.
• Hygiene protocols: Change out of wet clothing after training, shower promptly, and practice good hand hygiene—especially at communal fitness centers.
• Manage training load after travel: Travel increases exposure to respiratory pathogens and disrupts sleep patterns. Taper intensity for several days after travel.
• Vaccinations: Influenza and pneumococcal vaccination for eligible populations reduce respiratory infection risk.
• Hydration and nutrition: Maintain steady fluid intake and a balanced diet rich in micronutrients supporting immune function.

These measures do not prevent all infections but lower risk and minimize training disruption.

The Role of Clinicians, Physical Therapists, and Coaches

An interdisciplinary approach accelerates safe return to activity:

• Primary care or urgent care clinicians evaluate infections, prescribe appropriate medications, and identify severe cases.
• Sports medicine clinicians and cardiopulmonary specialists assess exertional responses and clear athletes for progressive training.
• Pelvic-floor physical therapists address dysfunction after UTIs to restore control and reduce pain during return to sport.
• Respiratory therapists provide breathing retraining and, for chronic lung conditions, pulmonary rehabilitation programs that safely increase exercise tolerance.

Good communication among these professionals ensures individualized plans and protects both short-term recovery and long-term performance.

Addressing Misconceptions and Common Questions

Several myths complicate decisions:

• Myth: Light activity always makes infections worse. Fact: Gentle movement can aid recovery by improving circulation and mood, but intensity and symptom pattern determine risk.
• Myth: Antibiotics mean it’s safe to train immediately. Fact: Symptom improvement often occurs before full resolution; systemic signs or persistent symptoms demand rest.
• Myth: A cough alone should stop all physical activity. Fact: Isolated, non-exertional cough without systemic signs may allow low-intensity activity with monitoring.

Clear, condition-specific criteria cut through confusion and ensure safe choices.

Long-Term Considerations: Recurrent UTIs and Chronic Respiratory Conditions

Recurrent UTIs require a diagnostic workup for underlying causes. Behavioral adjustments—voiding patterns, hydration, and post-exercise hygiene—matter. For people with chronic bronchitis or COPD, exercise is therapeutic when prescribed safely via pulmonary rehabilitation. These programs improve functional capacity and modify disease trajectory. Exercise prescriptions become part of long-term disease management rather than short-term decisions.

Ethical and Performance Considerations for Competitive Athletes

Elite athletes face pressure to train through illness. Sports medicine frameworks weigh short-term performance gains against long-term athlete health. Ethical practice emphasizes medical clearance and evidence-based return-to-play criteria. A pragmatic culture shift toward prioritizing recovery prevents career-limiting setbacks.

Practical Checklist: Should You Exercise Today?

Use this quick self-check before training:

1. Do you have fever, chills, or body aches? If yes, rest.
2. Are symptoms limited to painless congestion or mild nasal symptoms? Low-intensity activity may be acceptable.
3. With UTIs: any flank pain, blood in urine, or high fever? If yes, immediate medical review.
4. With bronchitis: significant cough with breathlessness, chest tightness, or low oxygen saturation? If yes, stop and consult.
5. Can you hold a conversation during exercise? If not, reduce intensity.
6. Do you have your medications (antibiotics, inhaler) handy? If not, postpone intense sessions.
7. Will you be able to hydrate and change clothes immediately after? If not, modify your plan.

If the checklist returns any “yes” to the serious items, prioritize rest and medical evaluation.

Final thoughts on balancing fitness and illness

Training provides many health benefits, but illness demands pragmatism. Small adjustments—reducing intensity, prioritizing hydration, practicing specific breathing techniques, and seeking timely medical advice—let you maintain movement without compromising recovery. When in doubt, short-term inactivity protects long-term performance. Recovery is part of training; respect that process and use a gradual, measured return when symptoms resolve.

FAQ

Q: Can I exercise with a mild UTI? A: Light, low-impact exercise—walking, gentle cycling, or restorative yoga—is often acceptable for a mild UTI, provided you have no fever, flank pain, or systemic symptoms. Keep sessions short, hydrate well, avoid heavy lifting and high-impact movements, and follow prescribed antibiotics. Stop if symptoms worsen.

Q: How soon after starting antibiotics for a UTI can I resume normal training? A: Symptom improvement commonly occurs within 24–72 hours. Resume normal training only when symptoms have resolved, hydration is maintained, and a clinician has cleared you if there were systemic signs. Gradually ramp intensity over several days.

Q: Is it safe to work out with bronchitis? A: If bronchitis causes significant cough, wheeze, shortness of breath, or fever, defer exercise. For mild bronchitic symptoms without systemic signs, low-intensity aerobic exercise and breathing retraining are acceptable. Avoid poor air quality and cold, dry conditions.

Q: Which breathing exercises help with bronchitis during workouts? A: Diaphragmatic breathing and pursed-lip breathing improve ventilation efficiency. Practice diaphragmatic breathing for 5–10 minutes before exercise and use pursed-lip breathing during exertion to control breathlessness.

Q: Are there signs that mean I must stop exercising right away? A: Yes. Stop immediately if you develop fever above 38°C (100.4°F), severe chest pain, sudden shortness of breath, fainting, severe pelvic or flank pain, or visible blood in urine.

Q: Can exercise cause a UTI? A: Exercise itself does not directly cause a UTI. However, behaviors associated with training—dehydration, delayed urination, wearing damp clothing or tight gear for prolonged periods—can increase the risk of bacterial growth and irritation that predispose to infection.

Q: What should athletes do to avoid prolonged downtime from infections? A: Plan training cycles with recovery weeks, prioritize sleep and nutrition, practice strict hygiene after workouts, stay hydrated, and seek early medical advice when symptoms appear. For respiratory complaints, warm-up thoroughly and avoid polluted environments.

Q: Does chronic bronchitis mean I must give up exercise? A: No. Supervised, individualized pulmonary rehabilitation and maintained physical activity improve symptoms and functional capacity in chronic lung disease. Work with clinicians to design a safe, progressive program.

Q: When should I see a specialist? A: Consult a primary care provider for initial assessment. See a urologist for recurrent UTIs or if structural problems are suspected. See a pulmonologist for persistent bronchitis, recurrent exacerbations, or if oxygen saturation is low.

Q: Is there a role for pelvic-floor therapy after a UTI? A: Yes. Pelvic-floor physiotherapy helps if pelvic pain, urinary urgency, or incontinence persists after the infection resolves. It aids in restoring normal muscle coordination and reduces exercise-related pain.

Q: Are there specific precautions for pregnant people? A: UTIs in pregnancy require prompt treatment due to elevated risk of ascending infection. Bronchitis needs careful monitoring because maternal oxygenation affects the fetus. Always consult obstetric care before exercising while ill.

Q: How can coaches support athletes who are ill? A: Encourage early reporting of symptoms, provide alternative low-intensity sessions, avoid pressuring athletes to train through illness, and coordinate with sports medicine for individualized return-to-play plans.

Q: Should I use a pulse oximeter during exercise if I have bronchitis? A: For people with pre-existing lung disease or significant respiratory symptoms, a pulse oximeter is a useful tool. Resting SpO2 below 92% indicates the need for urgent medical assessment.

Q: Does hydration really matter that much? A: Yes. Adequate hydration helps dilute urine, supports immune function, and reduces bladder irritation. For exercise, aim to maintain urine that is pale and produced regularly; use electrolyte solutions for long or heavy sessions.

Q: Can I swim with a UTI or bronchitis? A: Swimming is low-impact and may be tolerable for mild UTIs if symptoms allow, but avoid public pools if you have active urinary bleeding or systemic illness. For bronchitis, warm and humid pool air may be soothing, but strong coughing or sputum production that risks transmission to others means you should avoid public pools until improved.

Q: What is the safest overarching rule? A: Prioritize your health. Rest when systemic symptoms appear. If symptoms are mild, opt for conservative, monitored activity with hydration, medication adherence, and clear stop rules. Consult healthcare providers for tailored medical clearance and a graded return to full training.