Power Training and Speed Training for Tennis

Maximum power is trained when the athlete works in a range of between 95-100% of their maximum intensity. All too often athletes perform these power training drills at a low intensity thus defeating the purpose of overloading the muscles and maximizing you time spent training. Plyometrics has become the standard for power development with many trainers.

Power is simply the combination of speed and strength. In recent years many athletes and coaches have thought of power training as plyometric training due to the popularity of the term. However, plyometric training is just one form of power training. Plyometric training refers to an athlete developing explosive movements through a concentric contraction (shortening of muscle) following an eccentric contraction (lengthening of muscle).

It is during this eccentric contraction that the maximum force generated by the muscle is attained. The amount of force generated by the muscles following an eccentric contraction is greater. How does this apply to making you faster? Well it is not only specific to the various movements involved in your sport but it allows you to develop a more explosive start which will help you to get to your destination more quickly.

It is the stored energy from an eccentric contraction when a muscle is stretched that is available during the following explosive concentric contraction. It is this stretching of the muscles prior to the explosive muscle contraction that is often referred to as the “loading phase”. The key point here to know is that the greater the load and the faster the load will result in a more powerful contraction.

One key aspect for athletes to know is that the concentric contraction must be immediate after the eccentric contraction otherwise a lot of this energy will be lost. For example if you want to increase your vertical jump you will bend down and then immediately explode upwards. However, you are unlikely to achieve such a height if you bend down, wait a few seconds and then jump upwards. Therefore an athlete must try to jump as soon as they can following the eccentric contraction. This process is often referred to the stretch-shortening cycle and is what plyometrics is built around.

Now transfer this over to how it can make you faster. It could make you faster in getting to a ball if you can time your jump rather than just waiting in a crouched position. It could allow you to be faster if you learn to take off following this phase rather that trying to take off from a crouched position. In tennis you could become faster if you hit the ball, land and recover and then learn to time your explosive start immediately from this position rather than a full upright or fully crouched position.

I found this to be true for the tennis players that I have trained. When waiting in the already crouched position on a return; I found out that they were slower to get off the mark compared to when they were able to time their forward movement. This is where learning the split-step the correct way will make you faster in getting to the ball.

Power is the ability of an athlete to produce high levels of work over a short distance.

Power = Strength x Speed

Strength

Strength refers to the force applied. The effects on the body from this strength training can result in both neural and physiological adaptations that will directly enhance performance.

      Neural Adaptations or changes

• Increased recruitment of motor units
• Increase in intra-muscular coordination
• Increased firing rate of motor neurons

      Physiological adaptations or changes

• Increase in density of connective tissue
• Increase in muscles size (hypertrophy)
• Increase in bone density

Speed

There are various factors that contribute to speed and movement:

• The athlete’s skill through training
• Muscle fibre type
• Muscle insertion points
• Elastic energy

Power training must be specific to the skill or movement that is being performed by the athlete. It is also important that when conducting power training that the load placed upon the body does not affect the actual specific sporting skill or movement. For example; you could where a weighted vest and try to perform a series of vertical jumps but if your specific movement patterns are effected then you are inhibiting the transferring benefit.

This is why when conducting plyometric exercises it is important to choose sport specific exercises with appropriate loading as there will be greater transference across in terms of physiological and learned adaptations.

I have already done this by choosing the appropriate exercises for your sport of tennis. As a result of this explanation you will see how these exercises that I have chosen will apply specifically to the movements that you are required to perform when executing that skill. To just perform any plyometric exercise to increase power is not the way to go. There are thousands of exercises out there but selection is very important. refer to GSC fitness eBooks for more in-depth explanations of each exercise.

      Key Plyometric Exercises that Help to Improve Speed:

• Single leg hops
• Single leg bounding
• Pistol squats
• Double leg tuck jumps
• Double leg hops
• Alternate leg bounding
• Incline two leg bounding
• Zigzag hops or one legged lateral bounding
• Lateral jumps
• Squat jumps and Split jumps

      Plyo-box exercises:

• Depth jumps
• Alternating step ups
• Double leg jumps
• Single leg box squats

      Additional plyo-metric training methods:

• Ladder exercises
• Stair training
• Medicine ball exercises
• Kettle ball exercises
• Bounding over cones
• Bounding over mini-hurdles
• Jump/skipping rope
• Stadium hops

Favorite Exercise:

Running sand dunes! This is a killer workout and a great way to add extra resistance and variety to your training programs. I guarantee that if you are looking for a fun new way to train your players then take them down to the beach where there are some sand dunes. You can also include some sprint sessions along the beach followed by some swimming.

Your players will be ready to sleep for hours after this work out. It is also fun for them to be outside on the beach. Just be sure to include a proper warm-up and warm-down into your session.

Areas of Concern When Plyometric Training

After spending many years with coaches from a variety of sports in developing and designing their fitness and conditioning programs; it was quite apparent that many coaches did not know how to properly implement a plyometric program.

      They Key Areas of Concern Were:

• Many coaches were not completely educated on how to teach and instruct each plyometric exercises.
• The equipment used was of the wrong shape, size and weight for the athlete.
• The surface that they were performing the exercises on were poor and dangerous.
• The athletes didn’t understand what they were working on or how it applied to their sport.
• Athletes did not perform a proper warm-up prior to commencing a plyometric program.
• Injuries were not reviewed prior to starting a plyometric training program.
• Plyometrics were used at the wrong time of the season such as introducing new plyometric exercises during the competitive season.
• A strength base was not established first.
• Some of the athletes were too young for plyometric training.
• Not knowing how many sets and repetitions to use.

Progression of Exercises to Develop Speed

• Developing vertical drive – conducting plyometric exercises using cones and mini-hurdles will help to develop the vertical drive in athletes.

• Developing explosive hip power – one of my favorite modes of exercises for developing power, in particular hip power, is stair hops. The key with these exercises is to take away the use of the arms. One way to do this is to place your hands behind your head as you hop with two feet together up the steps.

• Developing explosive starts – this is where the various bounding exercises assist the athlete in developing speed by improving their explosive starts. Two of my favourite exercises are the single-leg and double-leg bounding followed by an immediate sprint. These exercises assist the athlete in pushing off the ground followed by a subsequent burst of speed over 10 metres.

Three main points in order to gain positive results from plyometric training:

1. Develop a sound base of flexibility
2. Develop a sound base of strength
3. Reduce the risk of injury by performing the proper technique for each exercise

Specifics to Designing a Plyometric Program for Speed Training

Step 1:

The following need to be identified and considered prior to an athlete commencing a plyometric training program:

• Age of the athlete
• Current or potential injuries
• Medical history
• Muscle imbalances
• Current strength of athlete
• Current speed of athlete
• The athlete’s weight
• The athlete’s experience and knowledge with power training
• The surface that the exercises will be performed on

Step 2:

The key points need to be considered with plyometric training:

• Frequency of sessions
• Rest and recovery between sessions
• Overload
• Progression with intensity levels
• Progression with volume
• What season the athlete is in (pre or post season)
• Duration of the program or session
• The specific demands of the sport
• Implementation of a thorough warm-up
• Your tournament schedule

Role in Tennis

The development of power in the game of tennis is most important to players at the higher levels. It is important to understand both components of power, which are the strength and speed aspects and how each relates to power development.

Power is also involved in all strokes and areas of the game of tennis. Power is particularly important in the explosive movement during the service motion, thus adding more “speed” to the serve. A faster serve will obviously be more effective and can help the player to develop the serve into a weapon.

Power is also extremely important to developing speed as it contributes to improved explosive starts and speed over short distances. Power development is one of the most neglected areas when training tennis players due to the lack of knowledge and understanding by coaches in how to train for “power”.

We have included power drills that involve the use of some equipment such as a medicine ball, as well as some drills using ones’ own body weight for those programs that do not have access to the required equipment.

Injury Concerns

It is extremely important to demonstrate proper technique in all power drills in order to prevent injuries. The development of power involves many “explosive” or “ballistic” movements and if performed incorrectly can often lead to injury. It is therefore important for the coach to fully understand how to demonstrate the skill, what they are trying to achieve, each player’s physical ability, and how to include power training into their fitness and conditioning programs. It is important, as with all fitness drills, that the coach follows any specific directions given by a player’s physician.

Player Level

Power development is primarily directed towards the more advanced competitive tennis player.

When coaching younger players still in the developmental stages (both technically and physically) it is more important to use the time available to develop stroke technique, court positioning, scoring, and overall understanding of the game of tennis.

How to Train

There are a wide variety of power drills included in this section and it is up to the coach to understand the individual that they are training and accordingly implement the appropriate drill.

Also, certain drills involve equipment such as medicine balls, plyo-boxes and various other weight resistance devices.Therefore it is important to choose the drills that fit into your training session taking into account the factors of time, equipment, skill involved, age and level of player, costs, and the time in setting up and demonstrating each skill.

Power training needs to be specific to the movement involved. All of the major power movements have been identified and the following drills have been developed specifically for power development in tennis players.

   
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