Mighty Nimble
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Intermediate Power Hour

A full-body strength + conditioning circuit designed to feel like a "power hour" in ~25 minutes.

Warm-Up

Raise your heart rate and prep hips, shoulders, and core. 4 minutes.

Jumping Jack
Jumping Jack1 min
How to

A full-body cardio move that trains coordination, calves, shoulders, and hips.

  1. Stand tall with feet together and arms at your sides.
  2. Jump your feet out as you raise your arms overhead.
  3. Jump your feet back together as you lower your arms.
  4. Repeat at a steady pace, landing softly each time.
Form cues
  • Stay light on your toes
  • Keep your chest tall
Common mistakes
  • Landing hard with locked knees
  • Letting your arms swing out of control
Bodyweight Squat
Bodyweight Squat1 min
How to

A bodyweight lower-body move that trains your quads, glutes, and hips.

  1. Stand with feet about shoulder-width apart and toes slightly out.
  2. Brace your core and keep your chest tall.
  3. Bend your knees and hips to lower into a squat.
  4. Push through your feet to stand back up.
Form cues
  • Keep your knees tracking over your toes
  • Keep your chest up
Common mistakes
  • Letting your knees cave in
  • Rounding your back as you lower
Inchworm
Inchworm1 min
How to

A full-body walkout that trains your core, shoulders, and hamstrings.

  1. Stand tall with feet hip-width apart.
  2. Hinge at your hips and place your hands on the floor.
  3. Walk your hands forward to a high plank.
  4. Pause with your body in a straight line.
  5. Walk your hands back to your feet and stand up.
Form cues
  • Brace your core in the plank.
  • Keep your legs as straight as you can.
Common mistakes
  • Letting your hips sag in the plank.
  • Rushing the hand walkout.
Glute Bridge
Glute Bridge1 min
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

Power Circuit

Three rounds of full-body strength with short cardio bursts. 18 minutes.

Dumbbell Thruster
Dumbbell Thruster40 sec
How to

A squat into an overhead press that trains your legs, shoulders, and core.

  1. Stand with feet shoulder-width and hold dumbbells at your shoulders.
  2. Brace your core and squat down with your chest up.
  3. Drive through your feet and stand up hard.
  4. Use that drive to press the dumbbells overhead.
  5. Lower the dumbbells to your shoulders and repeat.
Form cues
  • Keep your chest up
  • Press in one smooth motion
Common mistakes
  • Letting your knees cave in
  • Arching your back as you press
Push Up
Push Up40 sec
How to

A bodyweight press that trains your chest, shoulders, triceps, and core.

  1. Start in a high plank with hands just wider than shoulders.
  2. Brace your core and keep your body in a straight line.
  3. Bend your elbows and lower your chest toward the floor.
  4. Press the floor away until your arms are straight again.
  5. Repeat for your reps.
Form cues
  • Keep your ribs down
  • Move your body as one piece
Common mistakes
  • Letting your hips sag
  • Flaring your elbows straight out
Dumbbell Bent-Over Row
Dumbbell Bent-Over Row40 sec
How to

A bent-over dumbbell pull that trains your upper back, lats, and arms.

  1. Stand with a dumbbell in each hand and feet hip-width apart.
  2. Hinge at your hips with a flat back and let the weights hang.
  3. Pull both dumbbells toward your ribs, squeezing your shoulder blades.
  4. Lower the dumbbells with control until your arms are straight.
Form cues
  • Keep your chest facing the floor.
  • Pull elbows back, not out.
Common mistakes
  • Rounding your back as you row.
  • Shrugging your shoulders toward your ears.
Reverse Lunge
Reverse Lunge40 sec both sides
How to

A backward-stepping lunge that trains your quads, glutes, and balance.

  1. Stand tall with your feet hip-width apart.
  2. Step one foot back and lower until both knees bend.
  3. Push through your front foot to stand back up.
  4. Finish your reps, then switch legs.
Form cues
  • Keep your chest tall.
  • Track your front knee over your toes.
Common mistakes
  • Letting your front knee cave inward.
  • Pushing off the back foot to stand.
Mountain Climber
Mountain Climber40 sec both sides
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
3 rounds · 15 sec rest

Cool-Down

Bring your heart rate down and reset your trunk and shoulders. 3 minutes.

Plank
Plank1 min
How to

A core hold that trains your abs, shoulders, and glutes while you keep a straight body line.

  1. Place your forearms on the floor with elbows under shoulders.
  2. Step both feet back and lift into a straight line from head to heels.
  3. Brace your abs and squeeze your glutes.
  4. Hold the position and breathe steadily.
  5. Lower your knees to the floor to finish.
Form cues
  • Keep your ribs pulled down
  • Push the floor away
Common mistakes
  • Letting your hips sag
  • Lifting your hips too high
Dead Bug
Dead Bug1 min
How to

A core move on your back that trains control while you move opposite arm and leg.

  1. Lie on your back with arms up and knees bent over hips.
  2. Press your lower back gently toward the floor.
  3. Lower one arm and the opposite leg with control.
  4. Return to the start, then repeat on the other side.
  5. Keep alternating sides for each rep.
Form cues
  • Move slow and stay braced
  • Keep your ribs down
Common mistakes
  • Letting your lower back arch
  • Rushing through the reps
Child's Pose Stretch
Child's Pose Stretch1 min
How to

A kneeling rest stretch that relaxes your back, hips, and shoulders while you breathe.

  1. Kneel with your big toes together and knees apart.
  2. Sit your hips back toward your heels.
  3. Reach your arms forward and lower your chest to the floor.
  4. Rest your forehead down and relax your neck.
  5. Hold the stretch and breathe slowly.
Form cues
  • Let your hips sink back
  • Keep your neck relaxed
Common mistakes
  • Forcing your hips down
  • Holding your breath
Compound Loading for Maximum Output

Compound Loading for Maximum Output

Dumbbell Thrusters chain a front squat into an overhead press, recruiting quads, glutes, deltoids, and triceps in one explosive rep — maximizing motor unit recruitment per second. Bent-Over Rows counter anterior chain dominance, keeping scapular retractors balanced against all that pushing volume from Push Ups and Thrusters.

Why 25 Minutes Hits Harder Than an Hour

Why 25 Minutes Hits Harder Than an Hour

Compressed circuits like this one keep rest intervals short enough to sustain elevated heart rate, training both the phosphocreatine and glycolytic energy systems simultaneously. Reverse Lunges and Mountain Climbers exploit unilateral and rotational demands that expose real-world power deficits most steady-state training never reveals.

Anterior Core Sequencing Is No Accident

Anterior Core Sequencing Is No Accident

Dead Bug follows Plank deliberately — isometric bracing primes deep transverse abdominis activation, making the subsequent anti-extension Dead Bug reps neurologically sharper and safer under fatigue. To personalize load, increase Thruster weight by 5% only when you complete all reps with full hip lockout at the top — that's your true readiness signal.

Intermediate Power Hour | Mighty Nimble | Mighty Nimble