Too Much Exercise But Not Enough Results? Lose Weight And Improve Your Health

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Statistic Brain tells us that the total revenue of gyms and health clubs in the United States is $21.8 billion. Worldwide, the revenue is $75.7 billion.

IdeaFit tells us that people join a gym to get fit, lose weight, and stay in shape.

treadmill exercise photo

Photo by beltz6

Obviously, people want to exercise to lose weight. Gym memberships, home gym equipment, and workout videos all play their part. But, what are the best exercises for losing weight?

Go to any gym and you will see many people on treadmills, steppers, stair climbers, ellipticals, and cycles (spinners) doing their cardio workouts.

But, a lot of scientific investigations have determined that high intensity interval (or intermittent) training, HIIT, is superior to long cardio endurance training, ET.

Here are just a few studies you should be aware of:

  • From the journal Metabolism, the article Impact of exercise intensity on body fatness and skeletal muscle metabolism by AngeloTremblay, Jean-Aimé Simoneau, and Claude Bouchard of the Physical Activity Sciences Laboratory, Laval University, Ste-Foy, Québec, Canada:

    “The impact of two different modes of training on body fatness and skeletal muscle metabolism was investigated in young adults who were subjected to either a 20-week endurance-training (ET) program (eight men and nine women) or a 15-week high-intensity intermittent-training (HIIT) program (five men and five women). The mean estimated total energy cost of the ET program was 120.4 MJ, whereas the corresponding value for the HIIT program was 57.9 MJ. Despite its lower energy cost, the HIIT program induced a more pronounced reduction in subcutaneous adiposity compared with the ET program. When corrected for the energy cost of training, the decrease in the sum of six subcutaneous skinfolds induced by the HIIT program was ninefold greater than by the ET program.

  • A summary article, High-Intensity Intermittent Exercise and Fat Loss by Stephen H. Boutcher, School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney:

    The effect of regular aerobic exercise on body fat is negligible; however, other forms of exercise may have a greater impact on body composition. For example, emerging research examining high-intensity intermittent exercise (HIIE) indicates that it may be more effective at reducing subcutaneous and abdominal body fat than other types of exercise. HIIE also significantly lowers insulin resistance and results in a number of skeletal muscle adaptations that result in enhanced skeletal muscle fat oxidation and improved glucose tolerance.

    The effect of HIIE training on fasting insulin and insulin resistance is shown in Table 1. As can be seen all studies that have assessed insulin response to HIIE have recorded significant improvements of between 23% and 58% increase in insulin sensitivity.

  • From the journal Applied Physiology, Nutrition, and Metabolism, the article High-intensity aerobic interval training increases fat and carbohydrate metabolic capacities in human skeletal muscle indicates:

    This study demonstrated that 18 h of repeated high-intensity exercise sessions over 6 weeks (3 d·week–1) is a powerful method to increase whole-body and skeletal muscle capacities to oxidize fat and carbohydrate in previously untrained individuals.

  • In the journal The Journal of Sports Medicine and Physical Fitness, an articleHigh intensity interval exercise training in overweight young women indicates:

    Sixty female university students (aged 19-20, BMI≥25kg/m2 and percentage body fat ≥ 30%) were chosen and then randomly assigned to each of the HIIT group, the moderate intensity continuous training (MICT) group and the non-training control group…

    Both of these exercise training programs produced significant improvements in the subjects’ body composition, left ventricular ejection fraction, heart rate at rest, maximal oxygen uptake and ventilatory threshold. However, the HIIT group achieved better results than those in the MICT group, as it was evaluated by the amount of the effect size. The control group did not achieve any change in all of the measured variables.The tangible results achieved by our relatively large groups of homogeneous subjects have demonstrated that the HIIT program is an effective measure for the treatment of young women who are overweight.

  • An article HIIT vs Continuous Endurance Training: Battle of the Aerobic Titans by Micah Zuhl, Ph.D. and Len Kravitz, Ph.D. indicates:

    Because of the nature of high intensity exercise, the effectiveness of this type of training for fat burning has been examined closely. Perry et al. (2008) showed that fat oxidation, or fat burning was significantly higher and carbohydrate oxidation (burning) significantly lower after 6 weeks of interval training.

    Increased mitochondria (the energy factory of the cell) size and number is becoming a hallmark adaptation to HIIT (Gibala, 2009). This is referred to as an increase in mitochondria density, and has been thought for many years to only occur from chronic endurance training. Mitochondria use oxygen to manufacture ATP (the energy molecule of the cell) at high levels through the breakdown of carbohydrates and fat during aerobic exercise… An increase in these mitochondrial oxidative enzymes leads to more effective fat and carbohydrate breakdown for fuel.

  • In the journal Applied Physiology, Nutrition, and Metabolism, an article Is high-intensity interval training a time-efficient exercise strategy to improve health and fitness? indicated:

    Growing research suggests that high-intensity interval training (HIIT) is a time-efficient exercise strategy to improve cardiorespiratory and metabolic health.

The science is clear. For better cardiovascular health, less insulin resistance, and greater fat loss, high intensity interval training (HIIT) should be part of your workout routine.

HIIT Training on Treadmill Video
This is by far the best way to burn fat and not lose muscle. Target fat with high Intensity interval training. This can be adapted to any cardio machine.


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