TL;DR
A large-scale study of over 147,000 people found that consistent weight training for 90 minutes to two hours weekly lowers the risk of premature death by 13%. The study highlights strength training’s role in promoting long-term health and reducing mortality from cardiovascular and neurological diseases.
New research indicates that performing between 90 minutes and two hours of weight training weekly can lower the risk of premature death by 13%, with additional reductions in deaths from heart disease, stroke, and neurological conditions. The study, based on decades of data involving over 147,000 participants, underscores the health benefits of strength-based exercise, which have been less emphasized compared to aerobic activity.
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Researchers analyzed data from three long-term studies covering 147,374 men and women over 30 years. They found that individuals who regularly engaged in weight training within the specified time frame experienced a 13% reduction in all-cause mortality. Specifically, the risk of death from cardiovascular disease decreased by 19%, and deaths from neurological diseases, such as dementia, fell by 27%. The study also noted that combining strength and aerobic exercises yielded the greatest benefits, with some individuals experiencing up to a 58% reduction in early death risk. Experts highlighted that more than two hours of weekly strength training did not provide additional benefits, suggesting a threshold for optimal health gains.
Why It Matters
This research provides robust evidence that strength training is an effective strategy for extending lifespan and reducing the burden of chronic diseases. As healthcare systems face increasing pressures from aging populations, promoting accessible, evidence-based physical activity like weight training could help improve public health and lessen healthcare costs. The findings may influence exercise guidelines and public health policies to include strength training as a core component of health maintenance.
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Background
While aerobic exercise’s benefits for heart health are well established, the role of resistance or weight training in longevity has been less clear. Previous studies suggested potential benefits, but this new large-scale analysis offers more definitive evidence. The trend of increasing popularity of weight training, especially among younger adults, aligns with growing scientific interest in its long-term health effects. Experts have long advocated for a balanced approach combining aerobic and strength exercises for overall health.
“I want to be able to be travelling the world when I’m in my 70s, 80s, 90s and I want to be able to pick up my grandkids and play with them, and having that level of independence is really important.”
— Kate Hogarth, fitness enthusiast
“Strength-based physical activity is a powerful tool, particularly in support of healthy ageing – helping prevent or delay poor health, keeping us mobile and independent and easing pressures on overstretched health and care services.”
— Tom Burton, Sport England
What Remains Unclear
It remains unclear whether specific types or intensities of weight training are more effective, or how these findings translate across different age groups and populations. Researchers also note that more studies are needed to determine optimal frequency and duration for maximum benefit.
What’s Next
Future research will likely explore the mechanisms behind strength training’s health benefits and refine guidelines for different demographics. Public health agencies may update recommendations to emphasize resistance training, and fitness providers could see increased demand for strength-focused programs.
Key Questions
How much weight training should I do weekly for health benefits?
According to the study, 90 minutes to two hours of weight training per week is associated with reduced mortality risk. More than two hours does not appear to add extra benefits.
Can weight training replace aerobic exercise?
While both are beneficial, combining strength training with aerobic activity yields the greatest health benefits, including the lowest risk of early death.
Is weight training safe for older adults?
Yes, when properly supervised and tailored to individual abilities, weight training can be safe and highly beneficial for older adults, supporting mobility and independence.
Does the type of weight training matter?
The study did not specify particular types of weight training, but general resistance exercises that target major muscle groups are recommended for health benefits.
Will doing more than two hours of weight training harm me?
The research suggests that exceeding two hours per week does not provide additional mortality reduction benefits and could increase risk of injury if not done properly.
Source: BBC Health
