Sleep should be part of your training plan
Asking athletes to play on minimal sleep is the same as asking them to “play with one hand tied behind their back …It’s making them do something we know degrades their reaction time, their ability to take in their training, to get the most benefit out of it. They spend all this time practicing but never get to sleep.
Dr Charles Czeisler, Director of the Division of Sleep Medicine at Harvard
Importance of Sleep
The desire for athletes to perform at the peak of their ability means that many are willing to try whatever they can to be successful. They will watch closely what they eat, train to the maximum, take care to avoid injury and even work hard to improve their psychological approach to the sport. However, there is one key ingredient in being a successful athlete that is just as important but one that it is often ignored – sleep. At times athletes are guilty of placing too little emphasis on sleep as they want to spend more time training or preparing for the big event. However, there is a growing acceptance that getting the right amount of sleep is essential to ensure both the body and mind are at the optimum level.
This is highlighted by a series of studies that examine the importance of sleep including studies by Cheri Mah of the Stanford Sleep Disorders Clinic who has concluded that sleep is
a significant factor in achieving peak athletic performance”
and that athletes can be hindered by building up ‘sleep debt’.
Research studies have shown that the negative effects of sleep debt can be counteracted by a combination of naps and overnight recovery sleep. This assertion is borne out by research by Waterhouse et al (2007) which shows that following a period of partial sleep deprivation, a 30 minute nap will increase speed and alertness compared to no nap.
One of the best illustrations of the benefit of sleep comes from Mah’s study of the Stanford University’s male basketball team who witnessed improved performances in terms of speed and accuracy. The study saw players follow a normal routine of six to nine hours sleep for two to four weeks, and for the next five to seven weeks, increase their sleep to ten hours. The findings revealed that sprint times were reduced from 16.2 seconds to 15.5 seconds, while their shooting accuracy improved by 9% and in the same time fatigue levels decreased. Crucially, this evidence was backed up by improved performances during competitive games.
Three benefits of sleep
The importance of sleep is summed by Ashleen Bandesha in 3 reasons why sleep is important for athletic performance who states that 7-9 hours of sleep will allow for psychological, physiological and physical recovery.
1 – PSYCHOLOGICAL
The psychological effects can be broken down into the following categories:-
- REACTION TIMES – Lack of sleep has been known to reduce this alertness and decrease reaction times
- LEARNING & MEMORY – Sleep is quite impactful on our ability to learn new tasks that require both motor coordination and performance. Our focus, attention and vigilance take a back seat when we are sleep deprived
- MOTIVATION – If you take on the day fully rested, your mood will be boosted and you won’t feel the dreaded irritability that comes from lack of sleep
2 – PHYSIOLOGICAL
One of the key physiological benefits of sleep is hormone release. The quality of your sleep is just as important, if not more, than the length of your sleep. Stages 3 and 4 are integral to athlete development as this is where growth hormone is released and cortisol is regulated. Growth hormone is essential for muscle repair, muscle building, bone growth and promoting the oxidization of fats. This is critical for maintaining a certain standard of performance throughout your athletic career. Cortisol, also known as the stress hormone is regulated in deep sleep. Cortisol levels directly impact the body’s ability to digest glucose.
3 – PHYSICAL
The physical benefits of sleep are also vital in terms of injury risk and illness susceptibility.
- INJURY RISK – Research has shown that adolescents who had less than 8 hours of sleep, compared to their counterparts who slept eight hours or more, were 1.7 times more likely to experience an injury
- ILLNESS SUSCEPTIBILITY– Studies have illustrated that people who slept less than seven hours were three times more likely to develop a cold after direct application of a cold virus, than those who got an optimal amount of sleep
Sleep is as important as exercise
As a result of the many studies conducted into the area of sleep it is essential that coaches and athletes should incorporate it into their training plan and its importance is summed up by Derek-Jan Dijk, Professor of sleep and physiology at the University of Surrey, when he said that sleep should be valued as highly as exercise.
We should look at sleep as an active process. Getting enough sleep is a positive thing which will help you perform in all aspects of life; It may be that extra sleep leads to more effective training routines and helps us learn patterns better. Practice makes perfect – and that happens more quickly if you get enough sleep
In From pillow to podium: a review on understanding sleep for elite athletes the authors review the research on the relationship between sleep and athletes and the multiple factors that may influence athletes’ sleep behavior. They conclude:-
- Studies focusing on sleep loss and cognitive performance have shown cognitive functions to decrease which could have a detrimental effect on sports that require high levels of cognitive functioning
- A range of factors combine to negatively influence sleep in athletes with an increased incidence of sleep impairments occuring acround competition
- The area of napping and athletic performance remains under-represented in current literature and requires more in-depth investigation
- Sleep hygiene interventions have generated positive results in improving sleep
- Sleep extension protocols, nutritional interventions, and the implementation of meditation and relaxation strategies may also be implemented by coaching staff and practitioners to assist with sleep in athletes
- Given the fact that sleep provides a number of both psychologically and physiologically important functions that facilitate the recovery process, a greater understanding of strategies to improve sleep is central to future research in elite athletes.
Monitoring with Metrifit
Metrifit promotes authentic conversations and learning regarding sleep, stress, nutrition and other key factors that can prove immeasurable to both coaches and athletes. In the modern sporting world, the gap between winning and losing can come down to fractions of seconds, millimeters, or squeezing out that last ounce of energy. Data on all aspects of an athlete’s preparation is of significant value. If a coach can keep track of how an athlete is reacting to training, how they are sleeping, how they are eating and what their mood or stress levels are, they can make decisions based on that information that might just give them the edge they need. To find out more visit our Metrifit Product Overview page or contact us at for a free demo.
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References
The Doctor Who Coaches Athletes on Sleep by Danielle Elliot
3 reasons why sleep is important for athletic performance by Ashleen Bandesha
Sleeping longer ‘helps athletes reach peak performance’
Sleep and the Elite Athlete | Gatorade Sports Science Institute
The Importance Of Sleep For Weightlifters And Other Athletes by Dresdin Archibald
Sleep And High Performance: What Olympic Athletes Know About Sleep by Michael Gervais, PhD