Posts Tagged ‘exercise’

The Mythical Race Between Diet and Exercise

December 3, 2022 — You can’t outrun a bad diet. It’s a clever turn of phrase that resonates. But like many things that resonate about diet, exercise, and obesity, it might be a little too clever. In a very gentle way, David Allison, Dennis Bier, and Julie Locher point this out in a brief commentary appearing this week in […]

The Social Dimension of Physical Activity

November 28, 2022 — How important is the social dimension of physical activity? Recent modeling research published in PLOS One suggests that it’s critical. Ensela Mema and colleagues developed a mathematical model to estimate both social and non-social influences on physical activity across the population. They found that social influences were critical for maintaining physical activity or reducing sedentary […]

Does Grandparenting Explain Physical Activity Benefits?

December 1, 2021 — Let’s start with a disclosure of vested interests. It’s entirely possible that we hold strong biases about grandparenting and physical activity, since we engage in both with enthusiasm. Nonetheless, it is also objectively true that the active grandparent hypothesis is receiving considerable attention. A new article in PNAS by Daniel Lieberman and colleagues is prompting […]

Exercise: Energy In, Energy Out, Energy Sideways

August 30, 2021 — Exercise for weight loss is a durable concept. Some advocates even push for food labels to describe the exercise necessary to burn calories in a food serving. But the premise for this is false. A new study in Current Biology explains the problem better than ever before. It turns out that when a person does […]

Moderate Diet, Moderate Exercise, Real Heart Health

August 3, 2021 — People are fond of saying you can’t outrun a bad diet. Taking that catchphrase to a more positive track, a new study in Circulation tells us that running to a better diet can deliver better heart health. The study showed the effects a healthy diet with a modest calorie reduction combined with moderate exercise. This […]

New Study in NEJM: Controlling versus Losing Weight

May 6, 2021 — Weight loss is a minor part of obesity care. It’s blindingly obvious, but most people have a tough time wrapping their heads around this basic fact. A new study in the New England Journal of Medicine today tells this story in a very elegant way. It’s all about controlling weight over time. Getting Weight Loss […]

HIIT Takes a Hit in an RCT for Certain Heart Patients

February 10, 2021 — High intensity interval training (HIIT) is hot right now. It mixes short periods of very intense exercise with less intense recovery. Even before the pandemic, interest in HIIT had grown dramatically. Then it spiked when pandemic lockdowns began. But a new RCT published yesterday in JAMA suggests that it might not be a panacea for […]

When Is the Best Time for Exercise?

January 29, 2021 — Writing for the New York Times, Gretchen Reynolds purports to tell us the best time of day for exercise. Except that she doesn’t. Instead, she describes a study that is too small and too flawed to support the claims its authors make in Physiological Reports. And finally, buried at the end of her article, she […]

How Much Exercise to Prevent Weight Gain?

January 11, 2021 — In the relationship between exercise and weight, one article of faith has held up for years. Exercise is a valuable tool for preventing weight gain. Though you can’t outrun a bad diet, experts are quite clear that exercise helps to maintain a lower weight. However, a new randomized study in Obesity asks a key question. […]

Exercise for Weight Loss: The Lie That Won’t Die

December 12, 2020 — Sometimes an idea firmly plants itself in the popular imagination. Once there, it takes root and persists like a weed. It simply will not die. So it is with the idea that exercise is an excellent tool for weight loss. This is a lie that won’t die. A Nice Little Study Gretchen Reynolds at the […]