The four-minute daily strength workout: what a trial in over-65s found

One of the most common things I hear from people who've never lifted anything is "I just don't have the time". A study doing the rounds again this week makes that a harder argument to hold onto, at least for getting started.

Researchers at Penn State College of Medicine tested a home strength routine that takes four minutes a day. They published the results in PLOS One earlier this year, and the trial was written up again by ScienceDaily on 21 October. It's a small study in a specific group of people, so it's worth looking at what it actually tested.

Who took part

The trial recruited 97 adults aged 65 and over, with an average age of 74. Everyone was inactive at the start (less than an hour of activity a week and no strength training) and everyone reported some difficulty walking. According to Penn State, they were doing about 18 minutes of exercise a week on average beforehand.

People were randomly split into two groups. 44 did the routine, called FAST-2, for 12 weeks. The other 53 were a "delayed treatment" control group, meaning they carried on as normal during the study.

The routine

It's four exercises, each done for 30 seconds with 30 seconds' rest in between:

• Push-ups, with easier versions against a wall or a kitchen worktop
• Chair stands, standing up from a chair and sitting back down, with hands on the knees for help if needed
• Two-arm rows with an elastic resistance band
• Stair stepping on an adjustable-height step

Participants were given four resistance bands, a step and written instructions. They also had video coaching at the start and at weeks 2, 4 and 8 to check their form and progress the exercises, daily email reminders, and feedback on how they were doing every two weeks. As they got stronger they were encouraged to make each move harder, for example moving from wall push-ups to a lower surface, or raising the step.

What changed

The researchers measured three things at the start, at six weeks and at 12 weeks. Compared with the control group, the exercise group:

• Managed 4.2 more chair stands in 30 seconds
• Could stand on one leg for 3.6 seconds longer
• Were 2.3 seconds quicker at standing up from a chair five times

They completed the workout on 81% of days, and the paper reports no significant adverse events. The authors point out that the routine included only 60 seconds of leg work per session.

Those numbers might sound modest, but these are tests of things you do every day: getting out of a chair, keeping your balance on uneven ground, getting up the stairs. The lead author, Christopher Sciamanna, put the thinking behind it simply: "think about what you want to be able to do and train for it."

The caveats

This is a useful study, but it's worth keeping it in proportion.

• It's small. 97 people is a decent start, not the final word.
• It's a specific group. Everyone was over 65, inactive and had some difficulty walking. People starting from a very low base tend to improve quickly, so you can't assume a fit 40-year-old would see the same gains.
• The support was generous. Video coaching, daily reminders and regular feedback almost certainly helped people stick with it. Four minutes on your own with no check-ins may not go the same way.
• It measured performance, not falls. The tests are linked to future mobility, but the trial didn't track whether people actually fell less or stayed independent for longer.
• The control group did nothing new. We know four minutes beat nothing. We don't know how it compares with a longer routine.

What I'd take from it

The biggest lesson for me is that starting small works. If a full gym session feels like too much, four minutes is a real place to begin, and it's far better than waiting for the perfect week to start.

The moves are also ones most people can do at home with a chair, a step and a band. An incline push-up against a worktop and a step-up on the bottom stair are good versions to learn first. Once four minutes feels easy, build up gradually. The NHS guidelines for older adults recommend strength activities on at least two days a week, alongside regular moderate activity, and that's a sensible next target. Our home workout plan is a good next step when you want a bit more structure.

If you have a health condition, have had falls, or haven't exercised in a long time, have a chat with your GP or care team before you start, and choose the easiest version of each move to begin with.