If squeezing in a 30-minute workout feels impossible on busy days, a UT Physicians cardiologist says there’s good news. Fortunately, exercise doesn’t have to happen all at once. Short, frequent bursts of activity, known as “exercise snacks,” are emerging as a simple way to support cardiovascular health and stay active throughout the day.
“We live in a society with short bursts of entertainment, short bursts of activity—where everything is done in a short manner to accomplish things,” said Zohair Hasan, MD, an interventional cardiologist at UT Physicians Heart & Vascular – Katy. “Many patients have a hard time achieving 30 minutes or an hour of dedicated exercise a day or multiple times a week, but they’re able to carve out five minutes between a lunch break or meetings.”
What is an exercise snack?
This science-backed idea is simple: Break activity into short bursts throughout the day instead of trying to find 30 uninterrupted minutes. Research shows one to two minutes of vigorous intermittent activity, three times a day, is associated with around 50% lower cardiovascular mortality and around 40% lower cancer and all-cause mortality. This is true even for people who never formally exercise. Think of sprinting, a brisk walk up a few flights of stairs, or a minute of jumping jacks or air squats.
From a cardiac standpoint, any activity beats none, said Hasan, assistant professor with the Center for Advanced Cardiopulmonary Therapies and Transplantation at McGovern Medical School at UTHealth Houston. The standard recommendation remains 30 minutes a day, three to five days a week, but these tiny “bites” of physical activity can still help burn calories, loosen muscles, and put the body in motion.
While research has linked this activity to improved cardiac mortality, Hasan is careful about how far to take that finding.
“The study did find an association between exercise snacking and improved cardiac mortality, but I wouldn’t necessarily establish a causal relationship,” Hasan said.
Finding moments to move
Exercise snacks don’t require special equipment or a change of clothes, just a little more intention behind movement. These aren’t meant to replace regular exercise, Hasan said. Short bursts give people a realistic way to get started. Consistency matters more than perfection.
Give these a try to break up long periods of sitting:
- Stair climbing or sprinting
- Brisk walking
- Squats or lunges
- High knees
- Jumping jacks
- Countertop push-ups
- Dance to a favorite song
“Every big effort must start with a small first step, and exercise snacking is exactly that,” he said. “This is not a be-all solution to cardiac optimization. I see this as a gateway to initiating long-term healthy exercise habits.”
Hasan believes the biggest misconception is expecting dramatic results right away.
“Short gains will add up over time,” Hasan said. “The best thing someone can do is to have a regular habit of any type of activity.”
When it comes to heart health, simple movement can make a difference. In fact, a few minutes here and there may seem small, but those moments add up. The best exercise may simply be one you can fit into your day.