Teens: 7 Essential Tips to get 8-9 Hours of Sleep and Decrease Injury Risk

Not quite able to get that elusive 8-9 hours of sleep per night?

Figure there will be catch up on the weekend, or once summer starts, or after the upcoming tournament ends?

Maybe you just don't think that sleep is that important in general safety, training and competition?

Well, if your goal is to optimize overall performance while limiting risk of injury, then wake up and take notice of the following studies on the importance of sleep:

• Colleagues from Children's Hospital of Los Angeles found that adolescent athletes who slept more than 8 hours a night were 68% less apt to be injured than peers who did not get that much sleep per night. Athletes who reached higher grade levels in school actually had higher injury risks, so the additional sleep recommendations are even more important for older adolescents versus younger adolescents.

• The USA Centers for Disease Control reports that teenagers who got 7 or fewer hours of sleep a night had a higher prevalence of risky behaviors such as not wearing bike helmets or seatbelts, driving a car after drinking or riding in a car with a driver who had been drinking, or texting while driving when compared with teenagers who got 9 hours of sleep a night.
• Check out the wonderful infographic below from fatiguescience.com that compares a well rested athlete with a tired counterpart in a visual description of how poor sleep directly leads to poor performance. The graphic also illustrates the sleep habits of several well-known athletes and gives sensible tips on how to increase the quantity and quality of your sleep.

• For those who must deal with frequent long-distance travel and the demise of regular sleep habits, there's an App for that. Researchers at the University of Michigan utilize smartphones to monitor circadian clocks and make recommendations on lighting and other tips to more rapidly adjust to new time zones with travel.

Now, even when young athletes try to get this adequate amount of sleep, It is very common to have struggles with falling asleep, especially in the junior high or early high school years. If this scenario sounds familiar, start with the following recommendations:

1. Use bedrooms only for sleeping and changing clothes

2. Eliminate or reduce electronic exposure (TV, DVD, smartphones, computers, etc) in the bedroom

3. If must have electronic devices in bedroom, set to silent mode and turn upside down so screen is not visible

4. Try to go to sleep within 1/2 hour of the same bedtime every night, even on weekends and other days without school

5. Stop all electronic exposures at least one hour before bedtime

6.  Limit caffeine use at or after dinner time

7.  If having trouble falling asleep, turn your clock/timer around so you can't see the time

Many teenagers report awaking frequently during the night, or even more perplexing, getting the recommended 8+ hours a night, but still awakening tired or feeling fatigued during the day. In in these cases, highly recommend scheduling a medical evaluation to review sleep habits and hygiene, with focus on possible tonsil/adenoid enlargement, overtraining, uncontrolled asthma or allergies, depression/mood disorders and other illnesses that might contribute to interrupted sleep or poor sleep quality.

Sleep, Screen Device Use, and Concussion Recovery

Each concussion deserves individualized recommendations that seek to strike the delicate balance between a child's need for maintaining social contacts and attempt to continue with school work with a desire to not overwhelm the healing brain and increase post-concussion symptoms. An absolute restriction on screen use might reduce possibility of certain symptoms such as difficulty falling or staying asleep, but can also lead to social isolation contributing to higher symptom reports of anxiety, sadness, and outright depression. 

How can we best strike an appropriate balance between screen use and need for adequate sleep?

Ask most parents if they have worries about sleep issues and amount of electronics/screen device use in their school aged children, and you'll probably get ready nods and smiles of affirmation. 

Ask some of my sports medicine colleagues about why we are seeing more complicated and prolonged post-concussion recoveries, and you'll hear some suggest that the multi-tasking and multiple platforms of communication utilized by smart phones and other screen devices are potential contributing factors.

So since increasing sleep issues and attempts to pry screen-based devices from the hands of kids are common concerns to parents and medical professionals, it should be no surprise that difficulties initiating or maintaining sleep and regulating electronic use are often major challenges in children who have suffered a concussion.

Came across two recent studies on the subject of screen use and sleep that I think shed some interesting light on how we might make recommendations for all children, but particularly in the immediate post-concussion population.

One study from Proceedings of the National Academy of Sciences of the United States of America suggests the use of portable light-emitting devices immediately before bedtime has potential biological effects that may perpetuate sleep deficiency and disrupt circadian rhythms, both of which can have adverse impacts on performance, health, and safety. Such device use can:

•  increase alertness at bedtime, which may lead users to delay bedtime at home
•  suppress levels of the sleep-promoting hormone melatonin,
•  reduce the amount and delays the timing of REM sleep
• and reduce alertness the following morning

While this study used healthy young adults (mean age around 25 years of age), the findings are intriguing enough to be extrapolated to younger patients. Given the frequency where recommended oral melatonin clearly helps with falling and staying asleep, having another pathway to support internal melatonin production can be essential in the recovery process.

An additional study from the journal Pediatrics examined 4th through 7th graders and assessed associations of different screens in sleep environments with sleep duration and perceived insufficient rest or sleep. Particular interest was placed on smartphones which can emit notifications during sleep periods, and relevant findings included:

• Sleeping near a small screen, sleeping with a TV in the room, and more screen time were associated with shorter sleep durations.
• Presence of a small screen, but not a TV, in the sleep environment and screen time were associated with perceived insufficient rest or sleep.

These findings found that small screens could have more adverse effects on sleep than television screens and thus caution against unrestricted screen access in children’s bedrooms for normal, healthy 4th through 7th graders, which again could be extrapolated to include concussed children.

Throwing this all together, a pragmatic approach to screen use after concussion that utilizes the findings of these studies may include the following clinical recommendations:

1) The preponderance of screen devices is an integral reality in the life of many school-aged children and significance of appropriate use cannot be underestimated in expediting post-concussion recovery.

2) Once appropriate, limit screen device time use initially to the middle of the day and not within one hour of any scheduled nap or evening sleep period.

3) All screen device use should be stopped at least one hour before bedtime,

4) Screen devices should be removed from the bedroom to reduce interruptions in sleep from notifications or temptation to check devices for updates during periods of awakening.

Once the child has recovered from the concussion, the child might find that continuing the above screen time recommendations may lead to continued enhanced amount and quality of sleep, which in itself may lead to an enhanced quality of life.

Teenagers Not Designed as Early Birds: How to Combat Adolescent Sleep Deprivation

Are you a well-meaning coach trying to get the most out of your athletes during early morning training sessions? Somewhat frustrated that everyone seems a step slow or out of sorts during zero period? While "morning people" are a dime a dozen in the adult world, doesn't it seem that finding teenagers raring to go at 0600 is like the proverbial needle in a haystack?

According to a timely American Academy of Pediatrics (AAP) policy statement on School Start Times for Adolescents this type of behavior is not just an irritating by-product of teenage rebellion and striving for independence, but is a consequence of age-related delays in release of melatonin (hormone that influences sleep onset) and a slower drive to fall asleep compared with non-adolescents.

So yes, teenagers are biologically designed to have their own (circadian) rhythms and if they truly ran the world (instead of thinking that they do) they would select later school start times around the order of 8:30 if not later. This does often conflict with the usual norms of the adult-oriented world (such as parents having to be at work by 9 AM) and the realities of limited access to pools and court space along with trying to fit in another activity into already tight class schedules.

The ultimate goal according to the AAP and its review of the scientific literature would be to provide a consistent 8.5-9.5 hours of sleep per night and reduce the consequences of cumulative sleep deprivation:

• as has been outlined in this blog before, sleep deprivation may contribute to increased injury risk and decreased athletic and academic performance
• sleep deprivation may cause or modulate acute and chronic pain responses
• sleep deprivation may decrease overall immunity and increase risk of infection or illness
• chronic sleep loss may increase risk of obesity and diabetes

How do we best respond to these sleep deprivation concerns?

First of all, don't think that teenagers shouldn't get off without taking some responsibility for their less than impressive sleep statistics, as they often do not do themselves any favors with poor sleep initiation behaviors such as late night caffeine use, using electronics and media right before bedtime, and having access to television in bedrooms. Modifying some of these habits definitely could should be a high priority for parents, coaches, and educators with emphasis on the importance of sleep in post-activity recovery, preparation for next day activity, and especially the impact of insufficient sleep in mood and academic focus:

While giving appropriate counsel to sleep hygiene behaviors, there are certain nutritional recommendations that may also increase the quality of sleep initiation and maintenance according to an article conveniently published just before the AAP article:

• High Glycemic Index foods such as white rice, pasta, bread, and potatoes may promote sleep; however, they should be consumed more than 1 hour before bedtime.
• Diets high in carbohydrate may result in shorter sleep latencies.
• Diets high in protein may result in improved sleep quality.
• Diets high in fat may negatively influence total sleep time.
• When total caloric intake is decreased, sleep quality may be disturbed.
• Small doses of tryptophan (1 gram) may improve both sleep latency and sleep quality. This can be achieved by consuming approximately 300 grams of turkey or approximately 200 grams of pumpkin seeds.
• The hormone melatonin and foods that have a high melatonin concentration may decrease sleep onset time.

Promoting short naps (under a hour) during the day can contribute to the overall daily sleep total, and if done before an afternoon or evening exercise session may contribute to reduced sleepiness and and can be beneficial when learning new skills, strategies or techniques.

Finally, those of schedule-making adults might want to take a hard and scientific look at the utility of early-morning activities designed for adolescents. While the decision for later school starts may not be part of your pay grade, carefully weighing the risks and benefits of zero period weight training sessions or other before school activities in favor of more after school activities may actually increase athletic and academic performance in this age group. Delaying the start of afternoon training or competition sessions to allow for that brief nap (again, under an hour) may also enhance overall performance and mood of the team or group.

Do these sound like sensible and realistic recommendations to address sleep issues in adolescents?