core
advanced Level

HIIT Intervals

High-Intensity Interval Training (HIIT) alternates short periods of intense anaerobic exercise with less-intense recovery periods.

Physiology & Adaptations

Stimulates excess post-exercise oxygen consumption (EPOC), keeping metabolism elevated for hours. Improves V02 Max and insulin sensitivity.

Key Benefits

Significant cardiovascular improvements.
EPOC effect (afterburn) for increased calorie burn.
Time-efficient for fat loss.
Improves metabolic flexibility.

Sample Session

Blueprint
Tabata Protocol: 20s Max Effort Sprint -> 10s Rest -> Repeat 8 times (4 mins total).

Common Pitfalls

Not working hard enough during "work" intervals (pacing instead of sprinting).
Doing HIIT too often (leading to burnout).
Using complex movements that degrade under high fatigue/speed.

Specifications

Duration15-30m
Intensityadvanced
Focuscore

Progressive Overload

Increase work interval duration, decrease rest interval, or add more rounds.

Setup Checklist

1
Define Work and Rest intervals (e.g., 30s work / 30s rest).
2
Select exercises that can be performed at high intensity (sprints, burpees, KB swings).
3
Determine the total number of rounds.
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