The Case for 20 Minutes: Why a Single 20-Minute Workout a Week Can Deliver Big Results
If you’re making a fitness resolution for 2026 and already feeling overwhelmed, the New York Times has some surprisingly good news: you don’t need hours at the gym — or daily workouts — to get healthier. In fact, a growing body of research suggests that one short, well-designed workout each week can produce meaningful health benefits.
In a recent New York Times article on what researchers call “minimum effective dose” training, exercise scientists explain that the smallest amount of exercise needed to trigger real improvements in health and fitness is far less than many people assume.
“How much do you have to do to get health benefits? Any amount,” said Patroklos Androulakis-Korakakis, a visiting scholar at Lehman College and author of Train Smarter, Not Longer, in the article (New York Times).
That insight is especially powerful when it comes to strength training, which study after study links to longevity. The Times cites research showing that even brief, focused strength workouts are associated with lower risk of death from heart disease, cancer and other causes compared with doing no strength training at all.
And yes — once-a-week workouts count.
In a 2021 study highlighted in the article, exercise physiologist James Steele analyzed data from about 15,000 Dutch gym members who followed a program of one 20-minute strength workout per week. The workout included a single set of several exercises performed with high effort. After one year, participants were about 30 percent stronger.
The key, researchers say, isn’t how often you work out — it’s how hard you work while you’re there. As Androulakis-Korakakis explained, meaningful strength gains can occur with as little as one hard set per muscle group per week, provided you’re training close to fatigue — the point where you feel like you could only complete one or two more repetitions.
The article also emphasizes that how you train matters less than how effectively you train. Free weights, machines, resistance bands and body-weight exercises all deliver similar benefits when intensity is high and form is controlled.
For people short on time — or burned out by unrealistic fitness expectations — this research is reassuring. You don’t need daily workouts or endless gym sessions. You need efficient, challenging strength training, performed consistently.
At 20 Minutes to Fitness, that’s the entire philosophy. One focused, 20-minute workout each week can be enough to build strength, support long-term health and make fitness feel achievable again.
And according to the New York Times, science agrees.
Source: New York Times, “If You’re Resolving to Get Fit, Aim for the Minimum,” 2025
Want to read the entire article? Here is a gift link: How Little Exercise Can You Get Away With?