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Running Fartlek Training for All Skill Levels

Can adding fartlek training improve speed and endurance for runners and running enthusiasts?

Running Fartlek Training

Fartlek training, which means speed play in Swedish, is a form of running training that involves alternating between bursts of fast running and slower recovery jogging.

  • It is a form of interval or speed conditioning.
  • It involves varying one’s pace throughout their run, alternating between fast treks and slow jogs.
  • Workouts are unstructured and allow runners to decide the duration and intensity of the fast and slow sections.
  • Unlike formal interval training, this flexibility offers a new way to improve speed, endurance, mental preparedness, and stamina.

Training Benefits

Traditional interval training uses specific timed or measured segments. Fartleks are more unstructured, with work-rest intervals based on how the body feels. With fartlek training, individuals can experiment with pace and endurance as they run, which helps them tune in to their body and adjust how it performs. Many runners enjoy the training because it involves speed work and is more flexible and less demanding.

  • A stopwatch is not needed for time intervals.
  • Training doesn’t have to be done on a track and can be performed on all terrain, such as roads, trails, or hills.
  • The training stresses the body’s systems, leading to faster speeds and improving anaerobic threshold. (Bacon, A. P. et al., 2013)
  • Improves the anaerobic threshold and increases the body’s ability to train longer at higher intensities. (Mazurek K. et al., 2016)
  • This is due to an increased VO2 max, which measures how much oxygen the body can take in and use.
  • A better VO2 Max generally leads to improved performance. (Scribbans T. D. et al., 2016)

Disadvantages

  • Training includes a higher risk of injury and strain.
  • Beginners are more prone to shin splints.
  • The training is demanding, so it should not be done daily.

Workout

The method is to vary brief periods of slightly higher pace into regular runs (Kumar P. 2015). Maintain a faster pace for a short distance or time interval, such as 200 meters or 30 seconds. Intervals can vary throughout the workout, and landmarks such as streetlights or telephone poles can be used to mark segments instead of measuring miles or meters. Once a fast segment is completed, slow to below-normal running cadence until the body fully recovers and breathing returns to normal. Return to running normally and incorporate slightly faster intervals later in the run.

  • Fartleks should be short because they are intense.
  • The actual higher-pace portion of the run should last up to 30 seconds.
  • Gradually add more time to the faster-paced portion as conditioning improves, up to 60 seconds.

Training Example

An example of a 40- to 45-minute fartlek workout suitable for beginners.

  • 10-minute warm-up at a light pace
  • 1 minute on (fast pace)
  • 2 minutes off (easy)
  • 2 minutes on
  • 1 minute off
  • Repeat the set 3 to 4 times
  • 10-minute cooldown at an easy pace

Remember that beginners should go slow when introducing fartlek training into their workouts. It is more intense and can increase the risk of injuries and strains, such as shin splints. Get help from a running coach or trainer if you are unsure how to incorporate the training into your routine.

Training on a Treadmill

Speed play can be done on a treadmill. The idea is to find ways to create speed variation intervals and help relieve treadmill boredom. Some examples include:

  • If watching television, use commercials to go into speed intervals.
  • At the gym, make a game out of the sprints and/or
  • Speed up during certain parts of songs where you can feel the energy moving you faster.

One precaution is learning to use the treadmill’s buttons to increase and decrease the pace. This can slow you down and disrupt form, so maybe do longer durations for each phase so there is less contact with the control panel.

Injury Medical Chiropractic & Functional Medicine Clinic

Fartlek training is an excellent way to add variety, fun, and interest to running. This speed work can also enhance performance, increase cardiovascular output, and allow individuals to run at higher intensities for longer periods. Injury Medical Chiropractic and Functional Medicine Clinic works with primary healthcare providers and specialists to develop an optimal health and wellness solution. We focus on what works for you to relieve pain, restore function, and prevent injury. We can also work with other medical professionals to integrate a treatment plan to resolve musculoskeletal issues.


Building a Stronger Body


References

Bacon, A. P., Carter, R. E., Ogle, E. A., & Joyner, M. J. (2013). VO2max trainability and high-intensity interval training in humans: a meta-analysis. PloS one, 8(9), e73182. https://doi.org/10.1371/journal.pone.0073182

Mazurek, K., Zmijewski, P., Krawczyk, K., Czajkowska, A., Kęska, A., Kapuściński, P., & Mazurek, T. (2016). High-intensity interval and moderate continuous cycle training in a physical education programme improves health-related fitness in young females. Biology of Sport, 33(2), 139–144. https://doi.org/10.5604/20831862.1198626

Scribbans, T. D., Vecsey, S., Hankinson, P. B., Foster, W. S., & Gurd, B. J. (2016). The Effect of Training Intensity on VO2max in Young Healthy Adults: A Meta-Regression and Meta-Analysis. International journal of exercise science, 9(2), 230–247. https://doi.org/10.70252/HHBR9374

Kumar, P. (2015). Effect of fartlek training for developing endurance ability among athletes. Int J Phys Ed Sports Health., 2(2), 291-293. https://www.kheljournal.com/archives/2015/vol2issue2/PartE/3-3-75-957.pdf

The Importance of Sleep for Athletes: Maximizing Performance

Athletic individuals must train regularly, eat healthy, and rest properly to recover and perform their best. Is sleep different for athletes?

Athletes and Sleep

Physical activity is an important component of a healthy lifestyle. Regular exercise increases longevity and can also reduce the risk of anxiety and depression and improve sleep (Centers for Disease Control and Prevention, 2024). When one area is lacking for athletes, overall performance can suffer. Evidence shows that more or extended sleep can benefit athletes and their recovery and performance. (Bird, Stephen P. 2013) Recommendations for athletes range between seven and nine hours nightly, and elite athletes are encouraged to get at least nine hours of sleep nightly and to treat sleep as much as athletic training and diet.

Sleep is essential for overall health and well-being for both athletes and non-athletes. Everyone needs sleep to feel restored and function their best daily. (Richard J. Schwab, 2024) Other physical benefits include:

Cardiovascular Recovery

This allows the heart to rest and cells and tissue to be repaired. (MedlinePlus, 2017) This can help the body recover after physical exertion. As an individual progresses through the stages of sleep, the changes in heart rate and breathing throughout the night promote cardiovascular health (National Heart, Lung, and Blood Institute, 2011)

Illness Prevention 

The proper amount of sleep helps the body recover from illness. During sleep, the body produces cytokines/hormones that help the immune system fight off infections. These therapeutic effects are important for an athlete’s recovery and performance.

Lack of Sleep Affects Performance

Poor quality and quantity of sleep can lead to several negative effects. Sleep deprivation reduces the ability to react quickly and think clearly. A lack of sleep also increases irritability and risk for anxiety and depression. Sleep-deprived individuals are more likely to make poor decisions and take unnecessary risks. From a physical standpoint, a lack of sleep increases the risk for medical concerns, including type 2 diabetes, high blood pressure, kidney disease, and stroke. When athletes do not receive adequate sleep, it can:

Inhibit Ability

  • In a study of sleep-deprived male team athletes, average and total sprint times decreased. (Skein, M. et al., 2011)

Decrease Accuracy

  • In a study, male and female sleep-deprived tennis players had decreased serve accuracy by up to 53% compared to performance after normal sleep. (Reyner L. A. & Horne J. A. 2013)

Cause Quicker Exhaustion

  • A study of male runners and volleyball players found that both athletes exhausted faster after sleep deprivation. (Azboy O. & Kaygisiz Z. 2009)

Decrease Reaction Time

Difficulty Learning and Decision Making

  • A lack of sleep negatively impacts cognitive skills and functions.
  • Athletes can become distracted, and decisions like passing the ball or going for the smash can be difficult or made too late.

Increases Risk of Injury

  • Research on middle—and high-school athletes showed that chronic lack of sleep was associated with increased rates of injury. (Milewski M. D. et al., 2014)

Increases The Risk of Illness or Immunosuppression

Athletic Sleep Hygiene

Common components to sleep well include:

Avoid alcohol and Caffeine

  • Before bedtime, these can interrupt sleep or lead to more disturbed sleep.

Have a Wind-Down Routine

  • Activities such as reading, bathing, or meditating can help the body relax and get ready for sleep.

Reduce Stressors

  • Not only do mental stressors affect sleep quality, but they also impact performance overall.

Create an Optimal Sleep Environment

  • A sleeping space should be dark and cool with little to no noise.
  • The environment should be used only for sleep and sex.

No Electronics Before Bed

  • This includes TVs, cell phones, and computers.
  • The blue light that these devices emit can affect circadian rhythm.

Don’t Stay Awake In Bed

  • If you can’t fall asleep after 20 minutes of trying, get out of bed.
  • Do a quiet activity in another space until you feel sleepy.

Avoid Overtraining

  • Keep a consistent training schedule so as not to overexert yourself.

Quick Naps

  • Keep naps brief. Naps should be longer than an hour and not after 3 p.m.

Injury Medical Chiropractic and Functional Medicine Clinic

The right bed and mattress contribute to overall health and can improve one’s quality of life. Doctor Alexander Jimenez, DC, at Injury Medical Chiropractic and Functional Medicine Clinic, says a healthy mattress can improve sleep, reduce pain, increase energy levels, and elevate mood. Injury Medical Chiropractic and Functional Medicine Clinic works with primary healthcare providers and specialists to develop an optimal health and wellness solution. We focus on what works for you to relieve pain, restore function, prevent injury, and help mitigate the pain through spinal adjustments that help the body realign itself. They can also work with other medical professionals to integrate a treatment plan to resolve musculoskeletal issues.


Lumbar Spine Injuries In Athletes


References

Centers for Disease Control and Prevention. (2024). Benefits of Physical Activity. Retrieved from https://www.cdc.gov/physical-activity-basics/benefits/?CDC_AAref_Val=https://www.cdc.gov/physicalactivity/basics/pa-health/index.htm

Bird, Stephen P. PhD. (2013). Sleep, Recovery, and Athletic Performance: A Brief Review and Recommendations. Strength and Conditioning Journal, 35(5), 43-47. https://doi.org/DOI: 10.1519/SSC.0b013e3182a62e2f

Schwab, R. J. (2024). Overview of Sleep. Merck Manual Consumer Version. https://www.merckmanuals.com/home/brain-spinal-cord-and-nerve-disorders/sleep-disorders/overview-of-sleep

National Library of Medicine. MedlinePlus. (2017). Healthy Sleep Also called: Sleep Hygeine. Retrieved from https://medlineplus.gov/healthysleep.html

National Heart, Lung, and Blood Institute. (2011). Your guide to healthy sleep. Retrieved from https://www.nhlbi.nih.gov/resources/your-guide-healthy-sleep

Skein, M., Duffield, R., Edge, J., Short, M. J., & Mündel, T. (2011). Intermittent-sprint performance and muscle glycogen after 30 h of sleep deprivation. Medicine and science in sports and exercise, 43(7), 1301–1311. https://doi.org/10.1249/MSS.0b013e31820abc5a

Reyner, L. A., & Horne, J. A. (2013). Sleep restriction and serving accuracy in performance tennis players, and effects of caffeine. Physiology & behavior, 120, 93–96. https://doi.org/10.1016/j.physbeh.2013.07.002

Azboy, O., & Kaygisiz, Z. (2009). Effects of sleep deprivation on cardiorespiratory functions of the runners and volleyball players during rest and exercise. Acta physiologica Hungarica, 96(1), 29–36. https://doi.org/10.1556/APhysiol.96.2009.1.3

Taheri, M., & Arabameri, E. (2012). The effect of sleep deprivation on choice reaction time and anaerobic power of college student athletes. Asian journal of sports medicine, 3(1), 15–20. https://doi.org/10.5812/asjsm.34719

Milewski, M. D., Skaggs, D. L., Bishop, G. A., Pace, J. L., Ibrahim, D. A., Wren, T. A., & Barzdukas, A. (2014). Chronic lack of sleep is associated with increased sports injuries in adolescent athletes. Journal of pediatric orthopedics, 34(2), 129–133. https://doi.org/10.1097/BPO.0000000000000151

Prather, A. A., Janicki-Deverts, D., Hall, M. H., & Cohen, S. (2015). Behaviorally Assessed Sleep and Susceptibility to the Common Cold. Sleep, 38(9), 1353–1359. https://doi.org/10.5665/sleep.4968