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Intermediate Triathlon Brick

A 25-minute swim-bike-run inspired brick session to build smooth transitions and aerobic power.

Warm-Up

Prime shoulders, hips, and heart rate for a brick-style session. 5 minutes.

Jump Rope
Jump Rope1 min
How to

A light bouncing cardio move that trains rhythm, calves, and coordination.

  1. Stand tall with the rope behind your heels and handles at your sides.
  2. Turn the rope with small wrist circles.
  3. Hop lightly as the rope passes under your feet.
  4. Land softly on the balls of your feet and keep a steady rhythm.
  5. Stop the rope and step out when your set is done.
Form cues
  • Stay tall and relaxed
  • Keep jumps low
Common mistakes
  • Swinging from your shoulders
  • Jumping too high or landing heavy
Arm Circles
Arm Circles30 sec
How to

A simple shoulder warm-up that moves both arms in circles and trains shoulder control.

  1. Stand tall with your feet about hip-width apart.
  2. Raise both arms out to your sides at shoulder height.
  3. Make small, controlled circles with both arms.
  4. Keep circling for the set time, then reverse direction if told.
  5. Lower your arms to finish.
Form cues
  • Keep your ribs down
  • Move smoothly, not fast
Common mistakes
  • Shrugging your shoulders toward your ears
  • Arching your back to keep the arms up
Bodyweight Good Morning
Bodyweight Good Morning45 sec
How to

A bodyweight hip hinge that trains your hamstrings, glutes, and back position.

  1. Stand tall with feet hip-width apart and hands behind your head or on your hips.
  2. Soften your knees and brace your core.
  3. Push your hips back as your torso tips forward.
  4. Lower until you feel a stretch in your hamstrings.
  5. Drive your hips forward to stand tall again.
Form cues
  • Keep your back long
  • Hinge from your hips
Common mistakes
  • Rounding your back as you lower
  • Squatting instead of hinging
Glute Bridge
Glute Bridge45 sec
How to

A floor hip lift that trains your glutes and hamstrings with both feet planted.

  1. Lie on your back with knees bent and feet flat, hip-width apart.
  2. Brace your core and press your arms lightly into the floor.
  3. Drive through your heels and lift your hips until your body forms a straight line.
  4. Squeeze your glutes at the top, then lower with control.
  5. Repeat for your reps.
Form cues
  • Keep your ribs down
  • Drive through your heels
Common mistakes
  • Arching your lower back at the top
  • Pushing through your toes
High Knees
High Knees1 min
How to

A fast marching or running move that raises each knee to train your legs and raise your heart rate.

  1. Stand tall with feet under your hips and arms at your sides.
  2. Drive one knee up toward hip height as the opposite arm swings forward.
  3. Land softly on the ball of that foot.
  4. Switch quickly to the other knee and keep alternating.
  5. Keep a steady rhythm until the set ends.
Form cues
  • Stay tall through your chest
  • Land light and quick
Common mistakes
  • Leaning back as your knees lift
  • Stomping your feet into the floor

Main Brick

3 rounds of swim-bike-run inspired work. Keep transitions quick and controlled. 18 minutes.

Mountain Climber
Mountain Climber30 sec
How to

A fast plank move that trains your core, shoulders, and hip flexors.

  1. Start in a high plank with hands under shoulders and legs straight.
  2. Brace your core and keep your body in a straight line.
  3. Drive one knee toward your chest, then quickly step it back.
  4. Alternate knees at a steady pace for the set.
Form cues
  • Keep your hips low
  • Push the floor away
Common mistakes
  • Letting your hips bounce high
  • Dropping your head or rounding your shoulders
Bear Crawl
Bear Crawl30 sec
How to

A crawling core move that trains your shoulders, abs, and hips while challenging coordination.

  1. Start on hands and knees with hands under shoulders and knees under hips.
  2. Lift your knees a few inches off the floor.
  3. Move your opposite hand and foot forward together.
  4. Alternate sides as you crawl, taking small controlled steps.
  5. Keep going for the set time or distance.
Form cues
  • Keep your back flat
  • Move slow and steady
Common mistakes
  • Letting your hips sway side to side
  • Taking steps that are too large
Stationary Bike
Stationary Bike2 min
How to

A low-impact cardio exercise done on a bike that trains your legs and builds aerobic fitness.

  1. Adjust the seat so your knee stays slightly bent at the bottom of each pedal stroke.
  2. Sit tall, place your feet on the pedals, and hold the handles lightly.
  3. Start pedaling smoothly at an easy pace.
  4. Increase resistance or speed to match your workout goal.
  5. Ease the pace down before you stop pedaling.
Form cues
  • Keep your chest up
  • Pedal in smooth circles
Common mistakes
  • Locking your knees at the bottom
  • Hunching your shoulders over the handles
High Knees
High Knees1 min
How to

A fast marching or running move that raises each knee to train your legs and raise your heart rate.

  1. Stand tall with feet under your hips and arms at your sides.
  2. Drive one knee up toward hip height as the opposite arm swings forward.
  3. Land softly on the ball of that foot.
  4. Switch quickly to the other knee and keep alternating.
  5. Keep a steady rhythm until the set ends.
Form cues
  • Stay tall through your chest
  • Land light and quick
Common mistakes
  • Leaning back as your knees lift
  • Stomping your feet into the floor
3 rounds · 15 sec rest

Cool-Down

Bring the heart rate down and open hips/shoulders. 2 minutes.

World's Greatest Stretch
World's Greatest Stretch1 min
How to

A dynamic lunge stretch that opens your hips, hamstrings, and upper back as you alternate sides.

  1. Start in a high plank with hands under shoulders.
  2. Step your right foot outside your right hand.
  3. Drop your hips, then rotate your right arm up toward the ceiling.
  4. Place your hand down and step back to plank.
  5. Repeat on the left side, alternating sides each rep.
Form cues
  • Keep your front foot flat.
  • Reach long through your top hand.
Common mistakes
  • Letting your front heel lift off the floor.
  • Rushing the rotation without control.
Child's Pose
Child's Pose1 min
How to

A kneeling rest pose that gently stretches your back, hips, and shoulders.

  1. Kneel on the floor with your big toes together and knees apart.
  2. Sit your hips back toward your heels.
  3. Fold forward and reach your arms in front of you.
  4. Rest your forehead down and let your chest sink between your thighs.
  5. Hold the position and breathe slowly.
Form cues
  • Relax your shoulders
  • Breathe into your back
Common mistakes
  • Forcing your hips down
  • Holding your breath
Neuromuscular Switching Across Disciplines

Neuromuscular Switching Across Disciplines

The Stationary Bike-to-Mountain Climber-to-Bear Crawl sequence mimics the motor pattern disruption triathletes experience mid-race, forcing your neuromuscular system to rapidly recruit glutes, hip flexors, and core stabilizers across changing demands. High Knees prime stride turnover before the run segment, reducing the quad-heavy shuffle that plagues bike-to-run transitions.

The Brick Effect: Why Your Legs Betray You

The Brick Effect: Why Your Legs Betray You

Cycling locks your hip flexors in a shortened position and floods your quads with lactate, making the first 800m of any run feel like concrete legs — this is the brick effect. The Glute Bridge and Bodyweight Good Morning in warm-up pre-activate your posterior chain so your hamstrings and glutes share the load the moment you dismount, not ten minutes later.

Compressing Adaptation Into 25 Minutes

Compressing Adaptation Into 25 Minutes

This session uses specificity and metabolic overlap — the Jump Rope elevates heart rate to aerobic threshold before the bike segment sustains it, creating continuous cardiorespiratory stress without recovery valleys. To personalize intensity, increase Stationary Bike resistance until your cadence drops below 85 RPM, then hold that effort into Mountain Climbers to simulate genuine race-pace transit

Intermediate Triathlon Brick | Mighty Nimble | Mighty Nimble