High-Efficiency Weight Loss Programme: The Complete Guide to 4-Minute Fat-Burning and Body-Sculpting Workouts

The following 4-minute workouts presented in this book fall into two categories.

The first category comprises the ‘4-Minute High-Intensity Fat-Burning Workout,’ modelled on the 4-minute training within High-Intensity Interval Training (HIIT). This workout involves 20 seconds of sustained high-intensity exercise followed by 10 seconds of rest, repeated for 8 sets. The term ‘high intensity’ technically refers to exercising at 170% of one's maximum oxygen uptake during each 20-second interval. However, as this is difficult for the average person to gauge, simply exerting over 80% of your maximum effort is sufficient. Put simply, high-intensity exercise means you are unable to speak during the activity; if it feels effortless, you are not achieving the desired effect.
Additionally, you'll notice the exercises I've selected are deliberately simple. This is because the 4-Minute Rapid Calorie Burn workout is extremely intense, involving very fast movement speeds, making overly complex movements unsuitable. Furthermore, the training primarily engages the large muscle groups of the lower body and core, which enhances energy expenditure and increases VO₂ max.

The second category is my proprietary ‘4-Minute Rapid Shaping Workout,’ which falls under resistance training. Its purpose is to build some muscle mass during fat loss phases, maintain a high metabolic rate, and enhance localised muscle definition.

Each session targets two distinct muscle groups, ensuring minimal overlap in the muscles engaged. This approach eliminates the need for rest periods between sets, allowing for highly efficient training (akin to the superset system used in fitness, where two opposing muscle groups are worked consecutively – the agonist muscle works while the antagonist rests, and vice versa).

Each exercise set lasts 30 seconds with no rest in between, progressing directly to the next set. Complete eight sets in total, totalling four minutes. This equates to four sets per muscle group, which is an appropriate range for increasing muscle mass. Note: The resistance (weight) chosen during training must be sufficiently challenging to feel strenuous within the 30-second duration for optimal results.

My recommended training schedule comprises six 4-minute sessions weekly: three 4-minute high-intensity fat-burning workouts and three 4-minute high-intensity sculpting workouts, alternating daily. The remaining day may be allocated according to personal requirements.

As we learnt in PE lessons from childhood, formal exercise must be preceded by warm-up activities. The key lies in the word ‘warm’: our muscles and joints are highly sensitive to cold and prefer warmth. Once the body is warmed up, the entire system enters an active state, better preparing it for subsequent training.

Thus, the purpose of warming up is to elevate body temperature and pre-stimulate target muscle contractions, thereby enhancing performance during exercise by reducing muscle and joint stiffness.

Simply put, pre-workout warm-ups generally fall into two categories: aerobic and anaerobic.

The first is aerobic warm-up, designed to accelerate whole-body blood circulation.
Regarding duration, 3 to 5 minutes is typically sufficient. If you're at the gym, opt for cardio equipment such as treadmills, elliptical trainers, or stationary bikes. For home workouts, choose jumping jacks, light jogging in place, or skipping as warm-up exercises.

Given the high intensity of the 4-minute high-intensity interval training (HIIT), a thorough aerobic warm-up is essential before commencing the main session. This elevates muscle temperature throughout the body, enabling more precise execution of exercises and reducing injury risk.

The second approach is anaerobic warm-up. If you engage in structured resistance training beyond merely jogging or playing ball sports, an anaerobic warm-up follows the aerobic phase to activate target muscle groups.

I typically use light weights for the formal exercise warm-up. For instance, if the day's main exercises are dumbbell bench presses and dumbbell curls, I'll select light weights and perform 2-3 sets of each movement, gradually increasing the resistance slightly. Typically, I might curl 20kg for 10 reps; during warm-up, I'll use 10kg for 20 reps across 2-3 sets.

Subsequently, I can progressively increase the load and commence the standard workout.
Warm-ups serve as preparatory phases before exercise or training, so they should be moderate—avoid exhausting yourself before the main session begins.

The intensity and duration of warm-ups vary by individual, activity type, and ambient temperature.
Professional athletes typically require slightly longer warm-ups than recreational exercisers. Their thermoregulatory systems respond more efficiently than average, necessitating longer or more vigorous warm-ups to achieve adequate preparation.