Exercising while sick can be a complex issue, says Warren Lucas, research coordinator at The Sports Science Institute of South Africa and an accredited Sport Scientist. That’s because it depends on various factors, such as the type and severity of illness, symptoms experienced, and individual fitness levels. “Generally, it is recommended that when sick, to refrain from physical activity, unless it’s light (low-intensity) physical activity,” he says.
Keep it above the neck
According to the Mayo Clinic, exercise is usually OK if your signs and symptoms are all “above the neck”, such as a runny nose, nasal congestion, sneezing or a minor sore throat. Their advice: consider reducing the intensity and length of your workout. If your symptoms are “below the neck”, such as nausea, body aches, fever, diarrhoea, a productive cough or chest congestion, medical professionals agree that you should skip your workout until you have recovered.
Can you train while taking antibiotics?
If you find your usual energy levels depleted while working out on a course of antibiotics, don’t be surprised. After all, if you’re on medication, it usually means your body is fighting off an infection. Training while on antibiotics depends on several factors, including the type of infection being treated, the specific antibiotic prescribed and your individual response to the medication, according to Lucas.
If you’re on an antibiotic such as penicillin or azithromycin, exercise is acceptable, but if you’re on fluoroquinolones, avoid workouts of all intensities as these can lead to tendon issues. Always follow the guidance of your healthcare provider regarding exercise and antibiotic use as some antibiotics do have side effects such as dizziness, fatigue, or muscle weakness. “It may be healthier to allow time for healing as opposed to pushing oneself too hard during a recovery period as this could potentially hinder the healing process and prolong illness,” cautions Lucas.
Going back to gym after illness
According to Dr Howard LeWine, editor-in-chief of Harvard Men’s Health Watch, recommendations about when to return to exercise after respiratory infections, such as the flu, colds or bronchitis, are vague because each person's response to illness is so variable. “With the flu or any respiratory illness that causes high fever, muscle aches, and fatigue, wait until the fever is gone before getting back to exercise.”
While you may want to rush back to your fitness routine once you’ve started feeling better, your body may still be feeling weak, so pay attention to how you feel. Start with a lower intensity, shorter workout, and drink plenty of water to stay hydrated.
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