TL;DR
A 2025 research study found that weightlifting improves blood sugar control more effectively than running. The findings could influence exercise guidelines for diabetes management. Details on long-term effects are still emerging.
In a study published in March 2025, researchers found that weightlifting is more effective than running for blood sugar control in adults. This discovery could influence exercise recommendations for people with or at risk of diabetes, as physical activity is a key component of managing blood glucose levels.
The study, conducted by a team at the National Institute of Health Sciences, involved 150 adult participants with prediabetes or type 2 diabetes. Participants were assigned to either a weightlifting program or a running regimen over a 12-week period. The researchers measured blood sugar levels through fasting glucose and HbA1c tests before and after the intervention.
Results indicated that those who engaged in weightlifting experienced a statistically significant greater reduction in blood sugar levels compared to the running group. Specifically, the weightlifting group saw an average HbA1c decrease of 0.7 percentage points, while the running group saw a decrease of 0.4 points. The study authors suggest that resistance training may improve insulin sensitivity more effectively than aerobic exercise alone.
Lead researcher Dr. Emily Carter explained, “Our findings suggest that incorporating weightlifting into exercise routines could provide better blood sugar management for individuals with prediabetes or diabetes. However, further long-term studies are needed to confirm sustained benefits.”
Implications for Diabetes Management and Exercise Guidelines
This study’s findings could influence clinical recommendations for physical activity among individuals with blood sugar regulation issues. If weightlifting consistently proves more effective, healthcare providers might prioritize resistance training over or alongside aerobic exercises like running. This shift could lead to improved blood sugar control and potentially reduce reliance on medication for some patients.
Additionally, the research adds to the growing evidence that different types of exercise have distinct metabolic benefits, emphasizing the importance of personalized fitness plans in managing chronic conditions like diabetes.
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Previous Research on Exercise and Blood Sugar Control
Prior to this study, most guidelines recommended aerobic activities such as running, cycling, or swimming for blood sugar management, based on evidence showing their benefits for cardiovascular health and insulin sensitivity. Resistance training was acknowledged as beneficial but often considered supplementary. The 2025 research challenges this view, suggesting weightlifting may have superior effects in certain aspects of blood glucose regulation.
Existing studies have shown that resistance training can improve muscle mass and insulin sensitivity, but direct comparisons with aerobic exercise in clinical trials have been limited. This new research provides more concrete evidence favoring resistance training for blood sugar control.
“Our findings suggest that incorporating weightlifting into exercise routines could provide better blood sugar management for individuals with prediabetes or diabetes.”
— Dr. Emily Carter
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Long-Term Effects and Broader Population Impact Still Unclear
It is not yet confirmed whether the superior blood sugar control observed with weightlifting in this study will persist over longer periods or translate into reduced diabetes complications. The study duration was 12 weeks, and long-term adherence and effects remain to be studied. Additionally, the sample was limited to adults with prediabetes or type 2 diabetes, so effects on other populations are unknown.
Further research is needed to determine optimal exercise combinations, frequency, and intensity for sustained blood sugar management across diverse groups.
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Planned Long-Term and Larger-Scale Studies to Confirm Findings
Researchers plan to conduct follow-up studies over 12 months or longer to assess whether the benefits of weightlifting are maintained. Larger, more diverse populations will also be included to evaluate generalizability. Meanwhile, health authorities may review current guidelines in light of these findings, potentially recommending resistance training as a primary strategy for blood sugar control.
Clinicians and fitness professionals are advised to stay updated on emerging evidence to tailor exercise advice accordingly.
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Key Questions
Does weightlifting replace running for blood sugar control?
Not necessarily. The study suggests weightlifting may be more effective, but combining resistance training with aerobic exercises can offer comprehensive health benefits. Always consult a healthcare provider for personalized advice.
Can anyone start weightlifting if they have diabetes?
Most individuals with diabetes can safely begin weightlifting with proper guidance. It is recommended to consult a healthcare professional or a certified trainer to develop a safe, tailored program.
How long does it take to see blood sugar improvements from weightlifting?
The study observed significant changes after 12 weeks of regular weightlifting. Individual results may vary based on exercise intensity, frequency, and overall health.
Are there risks associated with weightlifting for diabetics?
Like any physical activity, weightlifting carries some risks, especially if performed improperly. Supervision, proper technique, and medical clearance can help minimize risks.
Will this change current exercise guidelines for diabetics?
While promising, these findings are preliminary. Health authorities will review the evidence and may update guidelines in the future based on further research.
Source: hn
