Woman strength training with dumbbells in a gym

Strength Training for Anxiety: What 16 Randomised Trials Show

11 May 20264 min read By Dushyanta Tomar

UK anxiety has roughly doubled in a generation. In 1993, around 4 in 100 working-age adults met the criteria for generalised anxiety disorder. By 2024, the figure was 8.5 in 100. Young adults aged 16 to 24 saw the steepest rise. Pills and therapy work for many people. Both have long waiting lists across the NHS. One option sits in the gap. Resistance training. The evidence is stronger than most people realise, and the protocol is short, simple, and free.

1 in 12
UK working-age adults with generalised anxiety disorder
16
Randomised trials in the Gordon 2017 meta-analysis
922
Adults pooled across the 16 trials
0.50
Effect size on anxiety in healthy adults (moderate)

Source: NHS APMS 2023-24. Gordon BR et al., Sports Medicine, 2017.

Why anxiety responds to lifting

Anxiety lives in the body as much as the mind. Tight chest. Shallow breath. Restless legs. Sleep broken before sunrise. The nervous system holds the alarm switch in the on position. Resistance training works on the same body. Heavy effort raises heart rate, then drops it back to a calmer baseline. Breathing slows after a set. Sleep deepens on training nights. Across weeks, the body learns the cycle of effort and recovery, which is the opposite of the chronic on-alert state of anxiety.

The mind follows the body. Strength gains show up week by week. The sense of being capable, in control and steady carries into the rest of life.

What the meta-analysis found

Gordon and colleagues pooled 16 randomised controlled trials covering 922 adults. Mean age was 43 years. Around two-thirds were women. Across all trials, resistance training reduced anxiety symptoms with a standardised effect size of around 0.31. In healthy adults, the effect was larger at 0.50. In people with a physical or mental illness, the effect was smaller at 0.19, still in the helpful direction. The effect held across age, sex, programme length, session duration and frequency.

Resistance training effect on anxiety

Effect size by populationStandardised mean difference. Larger = bigger drop in anxiety.All adults pooled0.31Healthy adults0.50Adults with illness0.19Source: Gordon BR et al., Sports Medicine, 2017. PubMed 28819746.

How to use it

The programmes in the Gordon trials varied. Most ran for 6 to 12 weeks. Most used two or three sessions per week. Most worked the whole body each session. Most used moderate intensity, with sets of 8 to 12 reps and a few sets per exercise.

A simple starting plan for a London adult new to lifting:

  • Two full-body sessions a week, separated by at least one rest day.
  • Five exercises per session covering squat, hinge, push, pull and carry.
  • Three sets of 8 to 12 reps per exercise, with the last two reps feeling hard but controlled.
  • Add a third session in week four if recovery feels solid.
  • Stay with the same five exercises for six weeks. Track the weight lifted.

Anxiety symptoms often shift within the first two to four weeks. Sleep tends to settle first. The mental edge follows.

What lifting does not replace

Resistance training sits alongside care from your GP and therapist. Severe anxiety, panic attacks and trauma responses need clinical support. The NHS Talking Therapies service accepts self-referrals across England.

For mild to moderate anxiety, lifting weights belongs in the toolkit. Cheap. Repeatable. Backed by 16 trials. The dose is two to three sessions a week, applied with patience.

Frequently asked questions

How quickly will I feel the effect?
Most adults notice better sleep within 7 to 14 days of starting two sessions a week. Mood and anxiety symptoms tend to shift between weeks 3 and 6. Give it 8 to 12 weeks for the full effect seen in the Gordon trials.
Do I need a gym or can I train at home?
Both work. The Gordon meta-analysis included home, gym and rehab programmes with similar results. A pair of dumbbells, a resistance band, and bodyweight movements cover the trial protocols. A gym makes progression to heavier weights easier later.
Should I stop my medication or therapy?
No, and not without your GP's input. Resistance training sits alongside medication and therapy, not instead of them. The trials added lifting to whatever care participants were already receiving. Discuss any changes with your prescriber.
What if heavy effort makes anxiety worse?
Start lighter. The effect in the trials held at moderate loads (around 60 percent of one-rep max), not maximum loads. If a heavy session triggers symptoms, drop the weight, slow the tempo, and breathe through every rep. Build intensity over weeks.
Does cardio work as well?
Aerobic exercise also reduces anxiety, with a similar effect size in the wider literature. Resistance training adds bone, muscle and metabolic benefits cardio alone does not cover. Doing both is the strongest approach.

Practical takeaways

Anxiety in the UK is rising. Lifting weights two or three times a week reduces anxiety symptoms across 16 randomised trials, with the largest effect in healthy adults. The plan is simple, the equipment is cheap, and the side effects are stronger bones, better sleep and a steadier mood. Start with two sessions this week. Six weeks from now, you will know how your body responds.

Build a steady strength plan for your week

DT Fitness London offers 1-to-1 personal training for London adults. Book a free consultation at www.dushyantatomar.com.

Sources

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