TrainersEye · Session of the Day · HIIT · #077

HIIT Repeated Sprint Ability (RSA)

RSA | 6 × 5-s sprints / 25-s jog, repeated sets | RPE 9 · Format · Descending Density Ladder
Target ≈ 35 minDate  Body Weight  Session RPE cap 9/10Coach: MMSx Team of Experts
Warm-Up · RAMPPhase 1 · Thermal primer · Zone 1-2 · RPE 4-5 · 5-7 min
Time__ : __
1Bodyweight Squatsteady breathing rhythm90 s
2Hip Circlesfast turnover, tall hips, quiet feet60 s
3World's Greatest Stretchquality over speed, always8 + 8
4Thoracic Rotationtall posture, ribs stacked2 × 10
Phase 2 · Neural & Velocity Primer3-5 min · Zone 3 · RPE 6-7 · sub-max explosive, full rest
Time__ : __
1Skater Hopcrisp hip snap every rep3 × 5
2Rotational Throwland silent, absorb through hips3 × 3
Phase 3 · Main HIIT EngineZone 5 · RPE 9 · 3 sets of 6 × 5 s sprint / 25 s jog · 3 min between sets
Time__ : __
1Hill SprintALL-OUT from second one — no pacing an alactic rep6 × 5 s : 25 s jog
2Sprintfast turnover, tall hips, quiet feet6 × 5 s : 25 s jog
3Depth Jumpland silent, absorb through hips3 × 4 between sets
Progression: Density rule: each block is shorter but the pace rises. Record total reps per block — next session beats it by 2-3%, not 10%.
Phase 4 · Finisher / Anaerobic Flush3-5 min · Zone 3-4 · RPE 7-8 · flush, do not re-spike
Time__ : __
1Rowing Machine — steadynasal breathing only — force the downshift3 min @ Zone 3
2RKC Plankribs down — hold the shape while gasping2 × 30 s
Phase 5 · Parasympathetic Restoration4-5 min · Zone 1 · active clearance, box breathing, decompression
Time__ : __
1Ellipticalnasal breathing only — force the downshift2 min easy
2Box Breathingsteady breathing rhythm4-4-4-4 · 2 min
3Dead Hangsteady breathing rhythm45 s
4Hamstring Stretchsteady breathing rhythm45 s/side
Coach notes: Log every load and every time box — next week's card asks for 2% more.
Whole Session TimeFirst warm-up minute → last second of the cool-down
__ : __ : __ Session Complete
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TrainersEye · MMSx Authority Institute · Session of the Day · Written by the MMSx team of certified professionals
Maximal-intensity programming — cardiovascular screening recommended. Scale load to your level, stop at pain, follow the BPIT Principle of Intensity and NASM/ACSM/ACE safety guidance. Educational — not medical advice.