You watch your plate, you force yourself to move more, and yet the scale refuses to go down. Between fatigue, stress, lack of sleep and days of sitting, the metabolism slows down and sugar cravings arrive at the worst time. In this fog, cardio advice contradicts itself: brisk walking, HIIT, sessions on an empty stomach… it’s difficult to know what to do to burn fat without sacrificing muscle.
To clarify the game, health consultant and Nike trainer Joe Holder, who previously coached Bella Hadid, suggests talking about
conditioning rather than just cardio. In
Women’s Healthhe summarizes: “The term ‘cardio’ has become very broad and almost vague, while ‘conditioning’ asks a more useful question: how prepared is your cardiovascular system to meet the different energy demands of life and training?“. His answer lies in the formula cardio 3-2-1.
Cardio 3-2-1: how Bella Hadid’s trainer doses the intensities
Joe Holder explains that “when you look at it from this perspective, you start to realize that there are low, medium and high intensity physical demands. Each intensity creates different adaptations in the body, but they all feed off each other if balanced correctly“. Concretely, it distinguishes between low intensity work (zones 1 and 2), medium intensity work with intervals, and high intensity work close to the maximum.
On this basis, the formula 3-2-1 is simple: three low intensity sessions, two medium intensity sessions, one high intensity session during the week. “The lower the intensity, the more you can do, so consider three low-intensity sessions per week“, specifies Joe Holder. Brisk walking, leisurely cycling or easy jogging improve aerobic efficiency, fat oxidation and recovery, without breaking out for your weight training sessions.
HIIT, gentle cardio and muscle mass: where the 3-2-1 formula makes the difference
High-intensity cardio type HIIT
can go up to 95% of your maximum heart rate. Twenty minutes burns as many calories as sixty minutes of low-intensity cardio, with an increased expenditure that persists for more than twenty-four hours. But this format requires a lot of energy and recovery, especially in a calorie deficit, to the point of being able to mobilize muscle tissue as much as fat.
The 3-2-1 distribution limits this load: a single truly explosive session, surrounded by gentler work. For bodybuilding practitioners who want to dry out without losing weight, the site recommends low-intensity cardio instead. By combining mostly low intensity and a few intervals, the
cardio 3-2-1 supports body recomposition while remaining compatible with heavy strength sessions.
Adopt 3-2-1 cardio without exhausting your body
For Joe Holder, “Body recomposition isn’t always about aggressively cutting calories. It’s about understanding the real goal“. You then adjust your diet to mainly want to gain muscle, lose fat or do a little of both, and you keep in mind that no 3-2-1 plan works without sufficient recovery.