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Running Training Tips

How to Add Speedwork Without Getting Injured

After the long and steady runs of marathon training and the tempo workouts of half marathon training, 10K training is bringing a new set of challenges for me: high intensity speedwork. The workouts certainly aren’t easy or comfortable by any stretch of the imagination, as my lungs burn and that metallic taste of hard effort rises up in the mouth. Yet there’s something thrilling about seeing those fast paces on my watch after a hard interval workout.

Many runners associate speedwork with injury, and rightly so – running too fast too often, too fast with poor biomechanics, or just downright too fast for your ability can quickly lead to an injury. Speedwork will always be uncomfortably hard, but it doesn’t have to lead to injury if you do it right. These steps will help you add in speedwork without getting injured – so you can reap the rewards of getting faster.

How to Add Speedwork Without Getting Injured

How to Add Speedwork Without Getting Injured

Ease in with Fartleks

A quick transition from the easy miles of base building to 12 x 400 meters on the track has too high of a risk of injury for most runners. Instead of jumping straight into hard speed workouts, use hill repeats and fartlek workouts to add in speedwork without getting injured.

Hill repeats are repetitions of running hard up a hill with an easy jog back down the hill in between. Fartlek workouts focus on effort and time rather than distance and pace. Both of these type of runs will introduce faster running into your training without the physical demand of hard speed workouts. Begin with hard efforts lasting 30-60 seconds in duration and progress from there. Since these runs focus both on effort rather than pace, you won’t be tempted to try to run at too fast of a pace for your current fitness.

Try these early season speed workouts to add some faster running into your training. 

How Fast Should You Run Speedwork?

Repeat after me: there is no benefit in running faster than you should for any given workout. Even if you can gut-bust out 6 x 800m in 3:00 minutes flat, doesn’t mean you should. Running faster than you need to do in order to obtain the physiological benefits of the workouts will actually work against you – you will accumulate undesired training fatigue, increase your risk of injury, and eventually leave your race in your training.  

My preferred calculator is the Jack Daniels VDOT Calculator. You enter a recent race time and the calculator provides you with equivalent race times and training paces. Daniels’ calculator will provide you with paces for repetitions (very short intervals such as strides) and for VO2max intervals (lasting 3-5 minutes). The calculator also provides equivalent race times such as 5K and 10K paces for longer intervals such as mile repeats.  

How to Add Speedwork Without Getting Injured

Along with knowing your paces, you should know how hard a workout should feel based on your body’s signals. With my own training and the athletes I coach, I rely on effort cues such as breathing patterns, the talk test, and the Rate of Perceived Exertion (RPE) scale in addition to pace. This way, if you can’t hit your exact pace due to weather conditions, you can still run at the appropriate intensity.

Be sure to know also the intended pace and purpose of the workout – there’s a significant difference between doing 1K repeats at 10K pace to practice running at goal race pace versus 1K repeats at your VO2max pace. Both workouts will help you run faster, but they should be used at different points in training and will be run differently. The 10K pace repeats will have a higher number of repetitions with shorter recovery, while VO2max repeats will have fewer repetitions with an equal time recovery. If you try to run a cruise intervals workout as a VO2max workout, you will be running too much at too hard of a pace – a true recipe for injury. 

How Much Speedwork Should You Do?

A variety of factors influence how much speedwork you should do, including your schedule, goals, and injury risk. However, according to recent research and leading experts such as Matt Fitzgerald, the most important determinant for speed work is your overall weekly training volume (based on time, not mileage). 80% of your total training time should be spent at a low intensity and the other 20% at a hard intensity.

The 20% of hard running includes running at threshold pace, so tempo runs must be accounted into the equation as well. How much time you spend in tempo runs versus high intensity speed work depends on your race goals – longer distances like the marathon and half marathon require more moderately hard running and higher mileage over speed workouts at 5K pace or faster.

Adding in too much speedwork (more than 20% of your training) will decrease your rate of improvement and increase your risk of injury. When in doubt, undertraining is always better than overtraining.

How to Add Speedwork Without Getting Injured

Avoid the Trap of Too Much, Too Soon

Just because higher mileage means you can do more speed work does not mean you should simultaneously increase your mileage and add in speed training. That quite simply is a recipe for injury or overtraining. As you add in high intensity running, you want to maintain your mileage (or even slightly decrease it). Once you’ve done a few weeks of speedwork, then you can gradually increase your weekly running mileage. 

Know When to Bail on a Workout

Some days, things just aren’t clicking in a speed workout – and this happens to every runner. Many times, you can power through a tough workout, but there are some runs where it’s better to quit than to push your mind and body past their limits.

If you aren’t quite hitting your paces, focus on maintaining the right perceived effort. Fatigued legs, headwinds, the first hot and humid day of spring – all of these things can affect your pace. If your pace is off by a few seconds per mile, focus on maintaining the appropriate effort level and give it your best for the conditions

However, if your legs feel completely dead, you are utterly exhausted, and you can’t get anywhere near your goal pace, call it quits on the workout. You won’t be training in the right zones and you will miss the purpose and benefits of the workout – essentially, you’ll be junking out your miles and only digging yourself deeper into the possible overtraining hole. Do an easy run or simply call it a day and try again a day or two later. 

Hire a Knowledgeable Coach
A knowledgeable coach will know how to calculate the appropriate paces and design the best speed workouts for your fitness level and your goals. Ask a potential coach about their training philosophy and how they add in speed workout to find if their methods will be a good match for you. You can learn more about my coaching services here. 

Run faster without getting injured! How to safely add speedwork to your training via…

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Linking up with Coaches’ Corner and Wild Workout Wednesday! 

What’s your favorite speed workout?
How do you avoid getting injured when starting up training?

More from This Runner's Recipes

  • How to Pace during Speed WorkoutsHow to Pace during Speed Workouts
  • Tips on How to Become a Faster RunnerTips on How to Become a Faster Runner
  • VO2Max Interval WorkoutsVO2Max Interval Workouts


30 Comments

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Comments

  1. Angela @ happy fit mama says

    April 12, 2017 at 2:34 am

    Great tips! Now if I can just figure out the whole not getting injured part. Lol! I highly recommend hill repeats and fartleks to everyone prior to starting formal speed work. It may suck but they both really work!

    Reply
    • Laura Norris says

      April 12, 2017 at 5:01 pm

      Thank you! Hopefully soon you will be back to running! Hill repeats do suck a ton, but they build such a good foundation for more speed.

      Reply
  2. Lisa @ Mile by Mile says

    April 12, 2017 at 2:37 am

    I definitely thing fartleks are a great way to ease into speedwork. I haven’t trained for anything shorter than a marathon in a few years, so I haven’t done any really intense speedwork in awhile. I think knowing why you are doing a workout is so important to make sure you are getting the benefits from it and not overdoing it!

    Reply
    • Laura Norris says

      April 12, 2017 at 5:02 pm

      The purpose of the workout is key – and very rarely is the purpose to go as hard as possible, unless it’s a race!

      Reply
  3. Susie @ Suzlyfe says

    April 12, 2017 at 3:50 am

    Speed work seems to be my slippery slope. If I get too comfortable and start to up things just a second before my body is ready, it all comes crashing down. FRICK

    Reply
    • Laura Norris says

      April 12, 2017 at 5:02 pm

      Speedwork does require a lot of knowing one’s body – it’s different for every runner!

      Reply
  4. Carla says

    April 12, 2017 at 5:25 am

    Years ago my sister was a hard-core marathoner. And she would say to me consistently: I rock this until the speed work and then I get hurt.
    Quite frankly I nodded but I had no idea what she was saying. Did my first marathon a couple of weeks ago. Now I can’t even imagine what she saying… Just lately 🙂 sending this to her and sharing with my other peoples 🙂

    Reply
    • Laura Norris says

      April 12, 2017 at 5:03 pm

      Congrats on your first marathon! Speedwork is especially a tricky balance with the marathon…those long runs are hard enough!

      Reply
  5. meredith (The Cookie ChRUNicles) says

    April 12, 2017 at 6:06 am

    I like fartleks a lot because I can do what I feel like doing and not think about time or distance! I have a few workouts I created that were fun ways to do speed, I actually ran one yesterday and I hadn’t done it in a long time.

    Reply
    • Laura Norris says

      April 12, 2017 at 5:07 pm

      Fartleks are definitely more fun and adjustable, which is why I like them so much!

      Reply
  6. Deborah @ Confessions of a mother runner says

    April 12, 2017 at 6:14 am

    In the past, I have gotten injured while trying to do speedwork. I am taking a much more cautious approach this year. so far so good finger crossed

    Reply
    • Laura Norris says

      April 12, 2017 at 5:07 pm

      Caution is the best way to go when doing speedwork – fingers crossed for you!

      Reply
  7. Ilka says

    April 12, 2017 at 7:12 am

    Awesome tips! Speed work can be tricky if you want to stay injury-free. Hill repeats are my favorite. I liked your links, including your post about Vo2max. Great informative read!

    Reply
    • Laura Norris says

      April 12, 2017 at 5:08 pm

      Thank you! Hill repeats are fantastic for getting faster and stronger.

      Reply
  8. Suzy says

    April 12, 2017 at 7:53 am

    I’ve been enjoying your treadmill workout you shared over a year ago. The warm-up, 8 min hard, 4 min recovery, 6 min hard, 3 min recovery, 4 min hard, 2 min recovery, 2 min hard, 1 min recovery, 1 min hard, cool down. It’s been harder and harder to hold those harder paces but that comes with the whole pregnancy territory. 😉

    Reply
    • Laura Norris says

      April 12, 2017 at 5:08 pm

      That one is one of my favorites as well. You’ve been crushing it at pregnant running!

      Reply
  9. Amy Lauren says

    April 12, 2017 at 9:07 am

    I really LOVE intense speedwork. It seems weird since I’m more of a half marathoner but I like running 800s and sometimes even the shorter repeats. It’s a nice change from the usual rigors of longer distances. This post is also really timely for me as I’m doing my first post-injury speedwork today.

    Reply
    • Laura Norris says

      April 13, 2017 at 11:30 am

      I notice that half marathoners, unlike marathoners or 5Kers, can have either speed or endurance as their strength. The race requires a good balance of both! I hope your first workout back went well!

      Reply
  10. Nicole @ Fitful Focus says

    April 12, 2017 at 9:39 am

    Great tips! Since I don’t have any big races on the horizon, I’ve been into shorter runs with more speed work thrown in.

    Reply
    • Laura Norris says

      April 13, 2017 at 11:30 am

      Speedwork is a great way to add variety to shorter runs!

      Reply
  11. Ange // Cowgirl Runs says

    April 12, 2017 at 9:59 am

    I’m super aware of not building up both intensity and distance too quickly. I spent a year injured, and I definitely harp on that with my running group 🙂
    I’m definitely a big fan of hill repeats. They’re brutal when you do them, but they’re so effective at making stronger and faster runners.

    Reply
    • Laura Norris says

      April 13, 2017 at 1:10 pm

      It’s a recipe for disaster to build up both at once. Hill repeats are so brutal – but they are also so much easier on the body!

      Reply
  12. Jamie King says

    April 12, 2017 at 9:26 pm

    I am all about those hill repeats! LOVE to hate them, that is!

    Reply
    • Laura Norris says

      April 13, 2017 at 1:13 pm

      They are certainly a love-hate workout!

      Reply
  13. Alaina @ The Simple Peach says

    April 13, 2017 at 8:47 am

    These are great tips Laura. It’s such a balance when it comes to the volume and intensity of speedwork. I’m a big fan of hill repeats and fartleks. They are so easy to throw into a run without having to think too much!

    Reply
    • Laura Norris says

      April 13, 2017 at 2:51 pm

      Thank you! Fartleks are my favorite for the same reason- no worrying about exact distance or pace.

      Reply
  14. Kimberly Hatting says

    April 13, 2017 at 10:59 am

    Thanks for all the great info…and explaining it in easy words LOL Speed work is absolutely my least favorite thing about training, but I know it’s a necessary evil.

    Reply
    • Laura Norris says

      April 13, 2017 at 2:59 pm

      Thank you! Something is only well explained when done in easy words…overly technical jargon does no favors!

      Reply
  15. Annmarie says

    April 13, 2017 at 12:48 pm

    Great post, Laura! Speed work can be super tricky to incorporate into a training schedule especially if you’re not used to it!

    Reply
    • Laura Norris says

      April 13, 2017 at 2:59 pm

      It’s tricky at any level – definitely one of the hardest parts of coaching is finding the right balance for each athlete!

      Reply

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Welcome to This Runner’s Recipes!

Hi, I'm Laura! I'm a distance runner, RRCA certified running coach, and outdoor enthusiast living in the greater Seattle area. Whether you want to run your first race or qualify for Boston, I'm here to help you achieve your personal best with training tips, coaching services, and nutritious recipes to fuel your running.

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