Is Wearing a Weighted Vest Worth the Weight for Bone Health?

Is Wearing a Weighted Vest Worth the Weight for Bone Health?

Exercise trends come and go. Rollerblades, step aerobics, and even Peloton bikes all had their moment in the spotlight before gradually fading from center stage. Recently, weighted vests seem to be everywhere. Many people claim that exercising with a weighted vest helps build strength and improve bone density—but is this supported by evidence, or is it just another fitness fad?

Let’s take a closer look at what we know.

1. Bone Basics

Bone health is influenced by several factors, including genetics, sex, hormones, and environmental exposures. One helpful way to think about bone is as a calcium bank.

• Osteoclasts withdraw calcium from bone.

• Osteoblasts deposit new bone to replace what has been withdrawn.

• Osteocytes act as managers, signaling where bone should be built or removed.

This constant remodeling allows bones to adapt to the demands placed on them. Calcium is essential for many physiologic processes—such as muscle contraction and nerve signaling—but excessive bone resorption can outpace formation, leading to decreased bone mineral density (BMD) and increased fracture risk. This condition is known as osteoporosis.

Peak bone density is typically achieved by the mid-20s.¹ Bone mass is generally maintained through the 30s, followed by a gradual decline beginning in the 40s. In women, bone loss accelerates during perimenopause and menopause due to declining estrogen levels.

2. How Bones Stay Strong

Good nutrition, regular activity, and mechanical loading are essential for maintaining bone health.

• Adequate calcium intake and vitamin D₃ provide the foundation for bone strength.

• In postmenopausal women, hormone therapy has been shown to reduce fracture risk and prevent bone loss.²

• Perhaps most importantly, bones require mechanical stress to stimulate new bone formation.

This process—known as mechanical loading—occurs during weight-bearing and resistance exercise. The magnitude of the load matters. Research suggests that bones require forces of approximately 4.2 times body weight to stimulate new bone formation.

• Walking loads bones at roughly 1–2× body weight

• Running or jogging increases load to about 3× body weight

• Jumping and resistance training can generate forces approaching or exceeding 4× body weight, making them the most osteogenic forms of exercise³

3. Strength Training and Bone Density

Resistance training not only strengthens muscles—it also provides the mechanical stimulus bones need to adapt. To improve strength and bone density, muscles must be sufficiently challenged.

The American College of Sports Medicine recommends:

• 1–2 sets of 8–12 repetitions

• Performed at least twice per week

• Using resistance that leads to fatigue by the final few repetitions⁴

A practical guideline is to choose a weight you can lift 10–12 times, where the last two repetitions feel challenging and the final repetition is close to your limit. Exercises should target all major muscle groups and can include free weights, machines, resistance bands, or bodyweight movements.

So…What About Weighted Vests?

Recommendations for weighted vest use typically suggest starting with 5–10% of body weight. For someone weighing 150 pounds, this equates to a 7.5–15 lb vest.

While this added load may increase cardiovascular demand or perceived exertion, current evidence suggests it may not be sufficient to stimulate meaningful increases in bone density. Studies comparing walking with and without a weighted vest found no significant difference in bone density changes between groups. Both approaches helped reduce bone resorption, but neither resulted in new bone formation.⁵

This does not mean weighted vests are harmful—it simply means they are often over-marketed for bone health outcomes.

A Clinical Perspective from the Pilates Studio

At our Core Moves Pilates studio in Victorian Village, members practice hip extension on the Towers as a loaded alternative to traditional weight lifting

At our Victorian Village Pilates studio in Columbus, OH, we’ve had the pleasure of witnessing transformations in our Pilates clients— even in the realm of bone health, which we have found exciting and surprising! One of our long-term clients, diagnosed with osteopenia, has been attending Pilates consistently 2–3 times per week for over three years. On her most recent DEXA scan, she demonstrated a 6% increase in bone mineral density at the femoral neck! For clarity, she does not walk with a weighted vest or participate in traditional resistance training.

This finding is particularly noteworthy because the femoral neck is a clinically meaningful site for fracture risk. While this single case does not replace controlled research—and does not suggest that Pilates should replace traditional strength training—it does raise an important point.

Heavy resistance training, particularly loaded squats, deadlifts, and overhead pressing, remains the gold standard for preserving and improving axial bone density due to the high compressive loads transmitted through the spine and hips. However, this case suggests that Pilates may offer a meaningful alternative or adjunct for individuals who:

• Do not have access to traditional weight training

• Do not feel safe or comfortable lifting heavy loads

• Require a lower-threat, skill-based approach to loading

For these populations, Pilates may provide sufficient mechanical stimulus—combined with consistency, alignment, and progressive challenge—to positively influence bone health.

Bottom Line

Wearing a weighted vest isn’t inherently bad—but it’s unlikely to be the bone-building solution it’s often advertised to be. The most effective strategy for preserving and improving bone density remains a combination of:

• Progressive resistance training

• Weight-bearing activities

• Higher-impact loading when appropriate (such as jumping)

Keep moving. Keep lifting. Keep challenging your body—your bones are listening. If you’d like some guidance, our Core Moves physical therapists and Pilates instructors would love to help!

References

1. Spine Health Foundation. Bone Health Basics. https://spinehealth.org/article/bone-health-basics/

2. The North American Menopause Society. The 2022 Hormone Therapy Position Statement. Menopause. 2022;29(7):767–794. doi:10.1097/GME.0000000000002028

3. Bone Health & Osteoporosis Foundation. BoneSense: Osteogenic Loading. 2023.

4. Hong AR, Kim SW. Effects of Resistance Exercise on Bone Health. Endocrinol Metab (Seoul). 2018;33(4):435–444. doi:10.3803/EnM.2018.33.4.435

5. Tantiwiboonchai N, Thanomwong K, Yuktanandana P. Walking with and without weighted vests and effects on bone resorption. J Med Assoc Thai. 2011;94(Suppl 5):S24–30