The Complete Guide to Brick Workouts: The Perfect Transition from Cycling to Running

What Is a Brick Workout?

A brick workout refers to performing two or three different disciplines consecutively within a single training session. The name comes from the heavy feeling in the legs during the transition between disciplines, as if the legs have turned into bricks. This training method is an indispensable part of a triathlete’s routine, as it conditions the body to switch between movement patterns while fatigued.

Physiological Benefits of Brick Workouts

Neuromuscular Adaptation

• Trains the body to rapidly shift muscle recruitment patterns when fatigued
• Builds movement memory between disciplines
• Improves movement efficiency and economy

Metabolic Effects

• Raises lactate threshold
• Improves aerobic capacity
• Increases fat-burning efficiency

Classic Brick Workout Combinations

Bike → Run (Most Common)

This is the most important brick combination because the T2 transition in a race is the most likely to affect performance.

Beginner Version:

• Bike: 30-45 minutes at Z2 intensity
• Transition time: 5-10 minutes
• Run: 15-20 minutes at E intensity

Advanced Version:

• Bike: 60-90 minutes, including 4-6 x 3-minute Z4 intervals
• Transition time: 5 minutes
• Run: 30-40 minutes, first 10 minutes at Z3, then pick up the pace

Swim → Bike

Training for the bike start after an open-water swim.

Standard Combination:

• Swim: 20-30 minutes in open water
• Transition time: 10 minutes
• Bike: 45-60 minutes at Z2-Z3

Transition Skill Training

T1 (Swim to Bike)

1. Quick-dressing practice: Practice putting on cycling gear quickly 2-3 times per week
2. Barefoot riding: Practice riding without shoes in a safe environment to improve efficiency
3. Riding wet: Ride immediately after swimming to adapt to a wet body

T2 (Bike to Run)

1. Dismount and run: Practice taking off shoes quickly while on the bike
2. Balance training: Maintain running rhythm after a fatiguing bike leg
3. Heart rate transition: Quickly adjust from a high bike heart rate to run pace

Advanced Brick Workout Plan

Week	Bike	Transition	Run	Goal
1-2	30-40 min Z2	10 min	15 min E	Base adaptation
3-4	45-60 min with intervals	7-8 min	20-25 min Z3	Intensity build
5-6	60-90 min with 4x3 min Z4	5-7 min	30-35 min Z3-Z4	Race preparation
7-8	90-120 min varied pace	5 min	40 min with surges	Race simulation

Common Brick Workout Mistakes

1. Overtraining

Brick workouts are highly demanding, and beginners tend to schedule them too frequently. It is recommended to do 1-2 sessions per week, with recovery weeks inserted into the training cycle.

2. Neglecting Transition Practice

Simply doing brick workouts is not enough; you must specifically target transition movements with technical training.

3. Setting the Run Pace Too Fast

Your legs will feel heavy after the bike, so you should keep the run pace at aerobic intensity to avoid excessive fatigue.

Brick Workout Periodization

Base Phase

1 brick workout per week, combined with 2-3 single-discipline sessions.

Build Phase

1-2 brick workouts per week, gradually increasing intensity and duration.

Peak Phase

1-2 high-intensity brick workouts per week, combined with long single-discipline sessions.

Taper Phase

Maintain 1 brick workout with high intensity but shorter duration to avoid excessive fatigue.

Nutrition Strategies for Brick Workouts

Fueling during brick workouts is crucial:

• Before training: Eat carbohydrates 2-3 hours prior
• Bike segment: Consume 30-60 grams of carbs per hour (energy gels or sports drinks)
• Transition area: Quickly replenish electrolytes
• Run segment: Decide whether further fueling is needed based on intensity and duration
• After training: Consume carbs and protein within 30 minutes

Conclusion

Brick workouts are an essential training method for triathletes. Through regular brick training, athletes can adapt to race-day fatigue, improve transition efficiency, and ultimately achieve better results in competition. The key is to progressively increase training intensity while maintaining proper recovery and nutrition.

Related Reading

• Special Training for the Triathlon Run (Run off the Bike): The Brick Training Method
• Brick Training for Triathlon: The Art of Running After Cycling
• Triathlon Brick Training: Designing Leg Adaptation Workouts for Running Immediately After Cycling
• 14-Day Triathlon Brick Training Plan: The Science of Muscle Adaptation for Running Immediately After Cycling