A recent UK announcement clarified that people would be allowed to workout an ‘unlimited amount’ outdoors as part of the gradual easing process of lockdown. Whether you agree or not that this should be allowed or encouraged, it’s led to a spike in articles preaching the benefits of working out twice a day.
For the vast majority of the population, however, working out two times a week would be more than their usual. Is promoting double-days sensible, and is it a tactic that could work for many? Here are some of the pros and cons of working out twice a day.

Photo by Caylee Hankins
Pros
- Double workouts can allow you to fit in more ‘accessory’ workouts, strength and conditioning and physio sessions, reducing imbalances and weaknesses. Some people feel they don’t have time for these if they’re aiming to train 5 days a week and fit in sufficient rest days. Doubling up means you can do an intense session in the morning and a low intensity stretching or physio session in the afternoon.
- Doubling up but doing the same number of workouts per week can mean that you allow yourself more rest days. Rather than working out 5h a week over 5 days, you can do 2 double days and a single day in just 3 days, thereby allowing yourself 4 rest days a week. You will need them!
- Splitting a session in two and doing half in the morning and half in the afternoon means you’re able to do each part of the session with more intensity, as you’re better rested for the second half.
- Splitting a session in two can also allow you to fit it in on a busy day. 30 minutes in the morning and 30 minutes after work in the afternoon is sometimes easier than an hour all at once.
- Working out twice a day reduces your sedentary time. We know that sitting for long periods of the day can be incredibly detrimental to our health, so even fitting in a short workout morning and evening can mean moving more overall.
Cons
- Even splitting the same workout in two can lead to injury or overtraining, as you’re working already fatigued muscles. If you’re not used to training a lot, working out twice a day will take its toll.
- Overtraining compromises your immunity, leaving you more vulnerable to even small illnesses. 72 hours after a long run, your immunity is reduced. For obvious reasons, this is especially problematic now. Doubling up leads to a greater likelihood of overtraining, if not done correctly.
- Workouts lead to micro tears in our muscles. Doubling up workouts can mean that these tears are not given sufficient time to repair, potentially leading to injury.
- Running has such a high injury rate that all runners are advised to increase mileage and intensity slowly. Doubling up can mean that it is possible to do more mileage, quicker, leading to common injuries such as shin splints, ITBS, plantar fasciitis and tendonitis.
- It can be hard enough to convince yourself to get out once a day. By trying to force yourself to head out twice a day you can take all the fun out of exercise.
- Doubling up is unsustainable for many. Overdo it and you may need to take off significant amounts of time, reducing any benefits you get from your double days.
In my opinion, there are more downsides to working out twice a day than there are positives, for the vast majority of people. I have been receiving a record number of messages about people picking up injuries from suddenly increasing the amount they are running, or starting new training programmes without a strong baseline of fitness.
Of course, there will be people who thrive off doubling up workout sessions, especially those who do so with the help of a coach, or who are already experienced in their sport. With proper planning, double days can allow for longer periods of rest between workouts, aiding recovery. They may also help people fit in enough strength and conditioning sessions that they could not otherwise, whilst also fitting in rest days.
The best way to be able to gain all the benefits of working out, even getting fitter during lockdown is to work on one thing at once. If you’ve taken up running, don’t increase intensity and distance in the same week. Your mileage should increase by no more than 10% week on week to avoid injury, but if you do your longest run one week, don’t also start adding in sprints or intervals sessions in the same week, or even the week after. Most of the sessions we do should be at moderate intensity – we do not always need to be pushing the boundaries of our ability. Be kind to yourself – this is a tough time for all and putting your body under extra physical pressure may cause you to reach breaking point.
Perhaps you want to start taking advantage of double days because you’re lacking time or want more rest days. That’s absolutely fine – maybe just try one double day a week (thereby taking one extra rest day too) and see how you get on. Take it easy and remember that recovery (and food) is as important as the session itself!
TL;DR
- While exercise can improve mood, fitness and your immune response, too much exercise can have exactly the opposite effect.
- If you are not a professional athlete or highly experienced with a well thought-out training plan, double days are probably going to increase your risk of fatigue, injury and may dampen your immune system.
- Provided you are not doing more workouts per week, double days can be effective when linking together a S&C session/physio session and a short run.
- As ever, stick to the 10% rule. If you’re a runner, increase your weekly mileage by no more than 10% per week. Any more than this increases your risk of injury, even (or especially) when taking on double days.
- Overtraining often takes several weeks to take its toll, so watch out for signs of it, and read this blog post to know when you may have pushed it too far.
- Listen to your body! If your workout doesn’t perk you up and you feel constantly fatigued, take an extra rest day. Yes, we have a lot of time at the moment and exercising can feel like a welcome break, but the consequences of overdoing it can be serious and long-lasting. Be sensible!