Mighty Nimble
Mighty Nimble
Download App

Intermediate Power Routine

Explosive strength + athletic conditioning with clear work/rest timing (~25 min).

Warm-Up

Raise temperature, prep joints, and groove hinges/squats. 5 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
Inchworm
Inchworm6x
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.
Hip Hinge
Hip Hinge10x
How to

A standing hip hinge that trains your glutes and hamstrings and builds the pattern for deadlifts.

  1. Stand with feet hip-width apart and knees slightly bent.
  2. Brace your core and keep your chest open.
  3. Push your hips back as your torso tips forward.
  4. Lower until you feel your hamstrings, keeping your back flat.
  5. Drive your hips forward to stand tall again.
Form cues
  • Move from your hips, not your waist.
  • Keep your back long.
Common mistakes
  • Squatting instead of hinging your hips back.
  • Rounding your back as you lower.
Jump Squat
Jump Squat8x
How to

A squat with an explosive jump that trains your legs, glutes, and power.

  1. Stand with feet about shoulder-width apart.
  2. Lower into a squat with your chest up.
  3. Drive through your feet and jump straight up.
  4. Land softly with knees bent, then go into the next rep.
Form cues
  • Swing your arms for power
  • Land softly and under control
Common mistakes
  • Letting your knees cave in
  • Landing stiff-legged

Circuit A

Explosive reps first, then strength. Keep transitions quick.

Jump Squat
Jump Squat8x
How to

A squat with an explosive jump that trains your legs, glutes, and power.

  1. Stand with feet about shoulder-width apart.
  2. Lower into a squat with your chest up.
  3. Drive through your feet and jump straight up.
  4. Land softly with knees bent, then go into the next rep.
Form cues
  • Swing your arms for power
  • Land softly and under control
Common mistakes
  • Letting your knees cave in
  • Landing stiff-legged
Kettlebell Swing
Kettlebell Swing15x
How to

A two-hand kettlebell swing that trains your glutes, hamstrings, hips, and core.

  1. Stand with feet hip-width and the kettlebell on the floor in front of you.
  2. Hinge at your hips, grip the handle, and hike it back between your legs.
  3. Snap your hips forward and let the kettlebell swing to chest height.
  4. Let it fall, hinge again, and keep the swings smooth.
  5. To finish, guide it back to the floor in front of you.
Form cues
  • Keep your back flat
  • Drive the swing with your hips
Common mistakes
  • Squatting instead of hinging
  • Lifting the kettlebell with your arms
Push Up
Push Up10x
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
Pull Up
Pull Up6x
How to

A bodyweight upper-body pull that trains your back, shoulders, and arms.

  1. Grip the bar with hands just wider than shoulder width.
  2. Hang with arms straight and brace your body.
  3. Pull your chest toward the bar by driving elbows down.
  4. Pause briefly at the top with chin over the bar.
  5. Lower with control until your arms are straight again.
Form cues
  • Keep your ribs down
  • Lead with your chest
Common mistakes
  • Kicking your legs to start the pull
  • Shrugging your shoulders toward your ears
3 rounds · 30 sec rest
1m 30s rest

Circuit B

Short conditioning burst + trunk stability. Stay crisp.

Burpee
Burpee30 sec
How to

A full-body bodyweight move that combines a squat, plank, push-up, and jump to train power and conditioning.

  1. Stand with feet about hip-width apart and arms at your sides.
  2. Squat down and place your hands on the floor.
  3. Jump or step your feet back to a strong plank.
  4. Lower your chest toward the floor, then press back up.
  5. Jump or step your feet back in and stand tall.
  6. Jump up with arms overhead, then land softly and repeat.
Form cues
  • Brace before you jump back.
  • Land with soft knees.
Common mistakes
  • Letting your hips sag in the plank.
  • Crashing down into the floor.
Plank
Plank45 sec
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
2 rounds · 30 sec rest

Cool-Down

Downshift breathing and open hips/hamstrings. 3–4 minutes.

Cossack Squat
Cossack Squat6x each side
How to

A side-to-side squat that trains your legs, hips, and groin mobility.

  1. Stand wide with toes slightly turned out.
  2. Shift your weight to one side and bend that knee.
  3. Keep the other leg straight with its heel down if you can.
  4. Push through the bent leg to return to center.
  5. Repeat to the other side, alternating each rep.
Form cues
  • Keep your chest lifted.
  • Track your knee over your toes.
Common mistakes
  • Letting the bent knee cave inward.
  • Rounding your back at the bottom.
Hamstring Stretch
Hamstring Stretch30 sec each side
How to

A held stretch for the back of your thigh that targets your hamstrings.

  1. Sit tall with your target leg straight and toes up.
  2. Hinge at your hips and reach toward your foot.
  3. Stop when you feel a gentle stretch behind your thigh.
  4. Hold the stretch and breathe slowly.
  5. Release slowly, then switch sides if stretching one leg.
Form cues
  • Keep your back long.
  • Hinge from your hips.
Common mistakes
  • Rounding your back to reach farther.
  • Bouncing in the stretch.
Child's Pose
Child's Pose45 sec
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
Triple Extension Drives Every Power Rep

Triple Extension Drives Every Power Rep

Jump Squats and Kettlebell Swings both demand simultaneous ankle, knee, and hip extension — the same explosive chain that powers sprinting, jumping, and athletic cutting. Pull Ups add scapular depression strength, ensuring your posterior chain and upper body share the power load symmetrically.

The 25-Minute Power Output Window

The 25-Minute Power Output Window

Peak neuromuscular power output degrades sharply beyond 20–25 minutes of high-intensity work, making this session's compressed structure a feature, not a limitation. Burpees and Jump Squats placed mid-block exploit your nervous system's freshest firing capacity before fatigue masks true power expression.

Hip Hinge First, Swing Heavy Later

Hip Hinge First, Swing Heavy Later

The Hip Hinge in the warm-up isn't filler — it's motor pattern priming that directly transfers to Kettlebell Swing mechanics, reducing lumbar compensation under load. To personalize intensity, adjust Swing weight until the top position feels like a standing plank: hips locked, glutes fully contracted, zero momentum carrying the bell.

Intermediate Power Routine | Mighty Nimble | Mighty Nimble