Volume of Swimming
The Training Plan
Progression of Volume
Novice IRONMAN Plan
Novice IRONMAN 70.3 Plan
Frequency
The frequency of swimming sessions is dependent on the athlete’s level of experience, time availability, physical capabilities, goals and access to a swimming facility.
At a minimum, the athlete should be scheduled to swim two times per week.
More frequent, shorter swims that focus on form and technique may benefit an athlete who needs additional time to improve.
Duration
High-intensity training will improve overall swimming times.
The two key weekly training sessions may be similar in duration, with one lower intensity focused on endurance and another with higher intensity intervals.
As previously mentioned, coaches may choose to include additional swims as needed.
Swimming training goals
The goals of swimming training are as follows. Aerobic endurance Strength Sustained speed Cardiovascular fitness Technical skills Tactical skills
Swimming Goals - Preparation phase
During the General Preparation sub-phase, coaches should plan training sessions that build volume and strength. Athletes who have the endurance can also work on intensity because these athlete’s bodies are ready to handle the increase structurally, and training fast will make the athlete race fast.
Many triathletes do not come from a swim background, so swimming requires a disproportionate amount of preparation. Preparing adequately will allow the athlete to come out of the water fresh for the bike, with no negative impact on the bike or run, on race day.
The coach may choose to incorporate some testing during this phase, typically over 1K and 100m.
Swimming Goals - Sharpening and Skill Acquisition
During the Specific Preparation and Pre-competition sub phases of the training plan, there should be a period of more focused race preparation.
Coaches should plan training sessions to improve speed and retest the athlete to see the progress from the previous months of training. This will boost the athlete’s confidence going into the competition phase.
The training should also focus on developing skills specifically related to triathlon, including race starts, sighting, drafting, pace lining, swimmer-to-swimmer contact, quick take-out speed, decision-making and exits. If possible, some training sessions should occur in open water conditions. Developing these race-specific skills will help the athlete manage anxiety and prepare mentally.
Swimming Goals - Competition Phase
By this point, the athlete should have all the skills necessary for optimum race performance. Skill building continues, with a focus on sharpening open water tactics. Training is highly specific. Every session should include speed, sighting, exit skills, drafting and speed changes.
In addition to physical skills, coaches should spend some time discussing anxiety management and mental preparation with their athletes. It is important for both the coach and athlete to be mindful of fluctuations in performance in the days or weeks around specific races.
Swimming Goals - Transition Phase
The transition phase is a technical phase that allows the athlete’s body to recover from the prior year of training and racing. Because the sport is highly demanding both physically and emotionally, it is crucial to give the body and mind time to recover.
During this phase, swimming is typically lower in volume with lighter intervals. The focus is on technical skills, such as stroke mechanics and fluid swimming.
Steps to Creating a Training Session
Continuous vs. Interval Training
Targeted Training Zones
Zones 1-2
Swimming prescribed in Zones 1 and 2 is completed at a steady pace and low aerobic intensity, so it relies on the aerobic pathway for energy. Training in these zones increases fat utilization, although both glycogen and fats are sources of energy.
Coaches will prescribe Zones 1 and 2 for active recovery or the warm-up and when focusing on or correcting technique.
Zones 2-3
The primary energy system for IRONMAN and IRONMAN 70.3 training is the aerobic system.
Swimming in Zones 2 and 3 improves cardiorespiratory and cardiovascular adaptations to allow for progressions in intensity, duration and volume during training as the competition phase approaches. Building a base level of aerobic capacity also improves the athlete’s ability to recover between training sessions. Additionally, this trains the body to utilize fats as source of fuel sooner.
Many athletes will complete the IRONMAN swim in Zones 2 and 3.
Zone 3
Swimming in Zone 3 corresponds to a moderate aerobic intensity, which for most athletes is the IRONMAN 70.3 swimming race pace.
The goal of swimming in Zone 3 is to build aerobic and muscular endurance.
Zone 4
Zone 4 corresponds to intensity at or slightly above the lactate threshold. This is higher than IRONMAN or IRONMAN 70.3 swimming race pace.
The goal of swimming in Zone 4 is to continue to build muscular endurance (strength) as well as to increase cardiovascular output and improve lactate tolerance.
Zone 5
The majority of higher intensity training sessions will be at Zone 4. Zone 5 training improves cardiovascular fitness by increasing cardiac output and stroke volume. It also improves mitochondrial function in the muscle cell. The goal of training in Zone 5 is to improve maximum oxygen consumption (VO2 max) by increasing cardiac output, stroke volume and mitochondrial content in the muscle cell.
Typically Zone 5 intervals are sprinkled in to other sets. They may be used to simulate the start of the race and the surges that may occur when going around a buoy.
Training Sessions and Zones
Technique
To improve technique, athletes can: do distance-per-stroke drills, do cadence drills, do pacing drills, focus on swimming form and practice sighting during swimming.
Tactics
To work on tactics, athletes can practice:
holding pace and cadence at various speeds,
varying pacing (e.g., fast start, even-pace middle, fast finish),
swimming in a wetsuit and
swimming in large crowds.
Swim training session - preparation phase
Swim Training Session - competition phase
Progressing Volume and Intensity
Progression of Interval Training