Why This Matters

Many women worry that low bone density means they should avoid strength training. This long, carefully designed study shows the opposite: postmenopausal women — even those with low bone mass — can safely gain muscle, lose fat, and dramatically increase strength with consistent resistance training.

The benefits were clear whether or not women were taking hormone therapy.

What the Study Did

Researchers followed 233 postmenopausal women for a full year. Participants were assigned to either a supervised resistance‑training program or a no‑exercise control group.

They measured:

• Lean soft tissue (LST) — muscle
• Fat tissue (FT)
• Strength (1‑RM tests)
• Attendance and total weight lifted
• Hormone therapy (HRT) status

This is one of the largest and longest studies of its kind.

Key Findings (in plain English)

1. Women who trained gained muscle — period

Both HRT and non‑HRT exercisers increased lean muscle. Women who did not exercise lost muscle if they weren’t on HRT and barely maintained muscle if they were on HRT. Training was the deciding factor.

2. Strength gains were huge

Across all exercises, strength increased from about +28% (seated row) up to about +77% (leg press). These are life‑changing improvements for balance, mobility, and independence.

3. Fat mass improved too

Exercisers reduced body fat, with the strongest improvements in total fat, trunk fat, and body‑fat percentage. The standout benefit, however, was muscle gain — exactly what older adults need most.

4. Hormone therapy barely mattered

HRT had only a small effect on muscle or fat changes. The big message: you don’t need hormone therapy to benefit from strength training.

5. Consistency mattered more than anything

The study tracked attendance and total weight lifted. Women who showed up more often and lifted more total weight had greater muscle and strength gains, with a clear dose–response relationship.

The more consistently you train, the more your body rewards you — at any age.

6. Everyone responded differently — and that’s normal

Individual changes varied widely: muscle change ranged from about −3.0 kg to +3.7 kg, and fat change ranged from about −8.3 kg to +5.9 kg. Your progress is your own — and improvement comes in many forms.

What This Means for Women Over 60

This study reinforces a simple truth: strength training is one of the most powerful tools for healthy aging — even if you already have low bone density.

It helps:

• Build muscle
• Improve balance
• Support bone health
• Reduce fall risk
• Maintain independence

And you don’t need heavy weights or a gym to get started.

Watch: 7-Minute Light Dumbbell Routine for Bone Health

This quick, 7-minute routine demonstrates how to safely use light dumbbells to maintain muscle mass and bone density. It is specifically designed for women over 50 to manage menopause symptoms while building functional strength.

Reference

The study is available here: Resistance Training in Postmenopausal Women With and Without Hormone Therapy