Weighted Vests

Last reviewed October 2026 · Based on 18 studies

Bottom line

Exercising in a weighted vest improved bone density and cut body fat compared with usual activity in a 2026 review of nine trials, but against the same exercise without a vest it added only about 0.7 kg of fat loss and no clear bone gain. Wearing a vest around the house or while dieting has not been shown to protect bone. Back soreness is the most reported side effect.

What it helps with

Builds bone density when worn during exercise — Benefit, evidence grade C (Limited). Meta-analysis of randomised trials (368 people) with small total sample; bone density stands in for fractures; the comparison includes the effect of the exercise itself.
Adds bone benefit beyond the same exercise without a vest — No effect, evidence grade C (Limited). The review found no significant bone benefit over exercise alone, but from a single study: unproven rather than ruled out.
Prevents bone loss during weight loss — No effect, evidence grade C (Limited). One 12-month randomised trial of 150 people found no difference from diet alone; a smaller pilot saw only a non-significant trend; small total sample.
Reduces body fat when worn during exercise — Benefit, evidence grade B (Moderate). Meta-analysis of randomised trials rated high certainty for fat mass by its authors; downgraded once for small total sample (368 people).
Burns more fat than the same exercise without a vest — Benefit, evidence grade C (Limited). Small extra effect from limited data as the review's own authors state; small total sample.
Improves leg strength and balance when used in exercise — Mixed results, evidence grade C (Limited). Small trials with positive results when used in exercise; a larger home trial of light vests worn without exercise found no change.
Can cause back soreness and other muscle or joint complaints — Harm, evidence grade C (Limited). Adverse-event counts from two randomised trials, neither powered for safety; falls counts are only a signal.

What it is

A weighted vest is an adjustable garment with pockets for weights, worn during walking, stairs, strength exercises or daily life to add load. Trials in older adults have used loads of 3% to 15% of body weight [1][2].

What the research says

A 2026 review of nine randomised trials (368 middle-aged and older adults) found that vest plus exercise improved bone density at the hip and lower spine and reduced body fat by 2.67 kg compared with usual activity [3]. Compared with the same exercise without a vest, the vest added 0.73 kg more fat loss but no significant bone benefit, based on a single study [3]. In a 12-month trial of 150 older adults with obesity who were dieting, a vest worn about 7 hours a day did not prevent hip bone loss [4]. A 37-person diet pilot found no extra fat loss from the vest [5]. Small trials of exercise in vests also reported better leg strength and balance, but results are not consistent: a very light vest worn at home did not change strength or bone markers [1][6][7][8].

Doses used in studies

Trials have used vests of 3% and 5% of body weight worn 2 hours a day for 27 weeks (no effect) [1], 4% to 8% during six weeks of treadmill walking [7], 7% during eight weeks of aerobic dance [8] and up to 15% during 12 weeks of supervised training [2]. In a 12-month diet trial, vests replaced about 78% of the weight people lost and were worn about 7 hours a day [4]. These are what trials used, not recommendations, and no trial compared weights head to head.

Safety and interactions

Common problems are back pain or soreness (5 of 20 vest wearers in one diet trial) [5] and more muscle and joint complaints than with diet alone (17 vs 6 in a 12-month trial) [4]. One severe skin reaction was reported after wearing a vest in water [9]. More falls were recorded with a vest (14) than with diet alone (10) in one trial that was not designed to test falls [9]. A 2026 review advises screening first and caution after a recent fracture, with severe balance or gait problems or painful joints, and starting light with gradual increases [9]. No safe upper weight has been established. No studies of interactions with medicines, or of use in pregnancy or breastfeeding, were found in this search.

Caveats and open questions

The bone result for the vest on top of exercise rests on a single study, and the review measured bone density, not fractures [3]. Total numbers are small, and the review says more research is needed in people with limited exercise capacity [3]. Older small trials disagree on hip bone density [6][10].

References

A randomized trial of weighted vest use in ambulatory older adults: strength, performance, and quality of life outcomes.. J Am Geriatr Soc, 2000.
Effects of exercise training with weighted vests on bone turnover and isokinetic strength in postmenopausal women.. J Aging Phys Act, 2007.
Effects of weighted vest on bone health and body fat in middle-aged and older adults: a systematic review and meta-analysis.. Osteoporos Int, 2026.
Weighted Vest Use or Resistance Exercise to Offset Weight Loss-Associated Bone Loss in Older Adults: A Randomized Clinical Trial.. JAMA Netw Open, 2025.
Feasibility of Weighted Vest Use during a Dietary Weight Loss Intervention and Effects on Body Composition and Physical Function in Older Adults.. J Frailty Aging, 2018.
Weighted vest exercise improves indices of fall risk in older women.. J Gerontol A Biol Sci Med Sci, 1998.
Effects of short-term aerobic exercise with and without external loading on bone metabolism and balance in postmenopausal women with osteoporosis.. Rheumatol Int, 2013.
Efficacy of a weighted-vest aerobic dance intervention for enhancing lower extremity strength and mobility in older adults: a randomized controlled trial.. Phys Act Nutr, 2026.
Weighted vest interventions in older adults: a mini-review of implementation, benefits, and limitations.. Front Public Health, 2026.
Long-term exercise using weighted vests prevents hip bone loss in postmenopausal women.. J Gerontol A Biol Sci Med Sci, 2000.