Periodization for Players who Compete Year-roundPeriodization evolved out of the Eastern European athletic training system where nationalchampionships, world championships and the Olympics were the primary events.Therefore, there were often periods of little competition and only a few major events forwhich to prepare.However, tennis is an individual sport that is possible to play year-round. Many strongjuniors play, not only on the high school team, but in USTA tournaments. College playersplay and train in the summer, despite no college season. USTA Summer League playersmight play in other competitions or leagues during the rest of the year. And ATP and WTAtouring pros play nearly year-round. That makes the principle of individuality significant inplanning, but also diminishes the role of traditional periodization.In addition, consider giving at least one month off from competition a couple times duringthe year, where there is at least a three week competitive gap. For many juniors, March toAugust will be the most intense period with high school and USTA tournaments. Given that,a few suggestions can be made for the player with a busy competitive schedule. If a playeris not an active, Step 7 can be eliminated.1. Plan and write up the competitive schedule (6 to 12 months).2. Highlight the peak competitive events (up to 3 or 4 most important ones).3. Set goals around the season and peak events.4. Allow a transition and active rest period (or off season) sometime after the lastmajor competition or in the gap between major events.5. Consider several (up to 6) other major events.6. Examine the gaps between the 9 to 10 peak and major events. There should be2 to 8 weeks between most of them, annually.7. Consider general psychological and physiological feelings when deciding toincrease or decrease competition and training. If the player has been verysuccessful winning, more matches will be played, and hence, consider being moreselective and dropping some events.PTR Practical On Court Applications for Sport Science 16
Heat Related IllnessesDue to the length of matches and typical hot weather, tennis players are susceptible, not onlyto dehydration, but also to heat illnesses. Heat cramps, heat exhaustion and heat strokes arethree types of heat illnesses. Many juniors battle in arduous summer tournaments and getdehydrated. Even spectators get heat illnesses, as tennis events often don’t have enoughsheltered areas. It is advisable for tennis coaches to have some First Aid certification.Understanding emergency and heat illness protocols 10 is essential.Heat cramps are the mildest form, and involve muscle spasms caused, in many instances, bythe imbalance of electrolytes and lack of appropriate hydration. Proper hydration, rest andstretching are helpful to combat heat cramps.Heat exhaustion is more serious. Symptoms include normal or elevated body temperature,heavy sweating, dizziness, nausea, weakness, rapid pulse, headache, and the skin appearsflushed or cool and pale. If heat exhaustion is suspected, get the person to a cool areaimmediately, have him drink fluids and remove excess clothing. Apply cool, wet cloths(e.g., towels) to the victim and consider immersion in a cool bath.Heat stroke is dangerous, even life threatening. Symptoms include increased bodytemperature of over 104˚F (40˚C), disorientation, shallow breathing, rapid weak pulse,disorientation, irregular heartbeat and hot red skin. The skin may be dry or moist (if playing).The body can no longer regulate temperature and, if left untreated, cardiac arrest and braindamage are possible. Call emergency or 911 immediately, move the victim to a cool place,and give the victim fluids. Remove excess and wet clothing from the victim, turn him on hisside and fan him. Apply cold compresses near wrists, neck, head, torso, ankles and groinareas (near large arteries). Body temperature must be lowered immediately.Hydration During Training and MatchesProper hydration is critical for optimal performance. Given the extreme heat and sunexposure, dehydration can be debilitating for performance. There is a significant amount ofliterature available on hydration, and the short list (next page) of best practices is useful forcoaches and players alike. Performance drops off when as little as 2% of body mass(i.e., water) is lost. 11,12 Players may sweat as much as 2.5 liters per hour and lose 4 to 7pounds per hour, if not replenished 13 . Most players tend to drink at 1+ liters/hour, which isn’tenough to replace fluid loss. However, not only water must be replaced, but also electrolytes -mostly sodium (Na + ). Sport drinks that help replace electrolytes are helpful for matches longerthan one hour.PTR Practical On Court Applications for Sport Science 17