Kenneth H. Cooper introduced the concept of aerobics in the 1960s, initially focusing on improving cardiovascular health. This evolved into modern-day cardio, primarily aimed at weight loss and fat burning. Cardio exercises utilize the aerobic energy pathway, where stored fat is converted into energy with oxygen, known as ATP. Early beliefs favoured long, low-intensity exercises like jogging for activating this pathway.
Evolution of Cardio
Over time, diverse cardio forms emerged, including aerobic dance, step aerobics, and Zumba. While low-intensity cardio remains effective for weight loss, it's often criticized for its lengthy duration, leading to boredom and dropout.
Rise of HIIT
High Intensity Interval Training (HIIT) challenges traditional cardio. HIIT involves alternating high-intensity bursts with low-intensity recovery periods. For example, sprinting alternates with walking in short intervals. HIIT sessions are short (5-20 minutes) but intense, recommended 3 times weekly.
The Science Behind HIIT
HIIT triggers the release of fat-releasing hormones (catecholamines) and induces excess post-exercise oxygen consumption (EPOC), leading to increased calorie burn even after the workout. However, HIIT's intensity can lead to joint pain and requires longer recovery periods, unlike daily low-intensity cardio.
Conclusion
While HIIT offers time-efficient fat burning and calorie expenditure, it's demanding and may not suit everyone. Balancing HIIT with other exercises and considering individual fitness levels is crucial.
Before beginning any new workout regimen, remember to consult with your friendly neighbourhood fitness professional.
Emmanuel Ofori - eMotivatesÂ
Your Friendly Neighbourhood Fitness Professional
Comments