Chilibeck et al. 2017: Creatine and Bone Mineral Density in Postmenopausal Women

TL;DR — Chilibeck et al. 2017

Chilibeck and colleagues published a 12-month randomized controlled trial showing that creatine supplementation combined with resistance training attenuated the age-related loss of bone mineral density at the femoral neck in postmenopausal women. The creatine group maintained bone density while the placebo group experienced the expected decline. This study provides important evidence for creatine’s role in bone health beyond its established muscle benefits.

Background

Osteoporosis is a major concern for postmenopausal women, with bone mineral density declining rapidly after menopause due to estrogen withdrawal. Resistance training helps maintain bone density, but additional interventions are sought to enhance this effect.

Creatine’s potential role in bone health is supported by multiple mechanisms. Osteoblasts (bone-building cells) are metabolically active and rely on the creatine kinase system for energy. Additionally, creatine’s ability to enhance muscle strength increases mechanical loading on bones, which stimulates bone formation. Smith-Ryan et al. (2021) highlighted bone health as an emerging area of creatine research in women (AE et al., 2021) .

Study Design

• Type: Randomized, double-blind, placebo-controlled trial
• Participants: Postmenopausal women (mean age approximately 57 years)
• Intervention: 0.1 g/kg/day creatine monohydrate or placebo
• Exercise: Supervised resistance training 3 times per week
• Duration: 12 months
• Primary outcome: Bone mineral density measured by DXA at femoral neck, lumbar spine, and total hip

Key Findings

1. Femoral neck bone density preserved

The creatine group maintained bone mineral density at the femoral neck over 12 months, while the placebo group showed the expected age-related decline. This is clinically significant because femoral neck fractures are among the most serious consequences of osteoporosis.

2. Muscle strength improvements enhanced

Consistent with established creatine research, the creatine group showed greater improvements in muscle strength compared to placebo. Stronger muscles apply greater mechanical force to bones during weight-bearing activities.

3. Safe and well tolerated

No significant adverse effects were reported. Kidney function, liver function, and all monitored health markers remained within normal ranges throughout the 12-month study.

Practical Implications

1. Creatine supports bone health in women: Postmenopausal women doing resistance training may benefit from adding creatine to protect bone density
2. Affordable osteoporosis intervention: Creatine monohydrate is significantly cheaper than many pharmaceutical osteoporosis treatments
3. Dual benefit — muscle and bone: Creatine simultaneously enhances muscle strength and supports bone density
4. Long-term safety confirmed: 12 months of daily supplementation produced no safety concerns as supported by broader evidence (RB et al., 2017)

Malaysian Relevance

Osteoporosis affects a significant proportion of postmenopausal Malaysian women. Malaysian women tend to have smaller bone frames and lower peak bone mass compared to Western populations, potentially increasing fracture risk. Creatine supplementation at approximately RM 30-50 per month represents an affordable, safe strategy to complement weight-bearing exercise and adequate calcium and vitamin D intake.

The findings from Forbes et al. on creatine’s benefits in older adults further support this application (SC et al., 2022) .

Limitations

• Single study — more RCTs are needed to confirm the bone density findings
• Effects observed primarily at the femoral neck, not consistently at other skeletal sites
• All participants were engaged in resistance training, making it unclear whether creatine alone would produce similar bone effects
• Results may not generalize to all ethnicities

Full Citation

Chilibeck PD, Candow DG, Landeryou T, Kaviani M, Paus-Jenssen L. Effects of creatine and resistance training on bone health in postmenopausal women. Medicine and Science in Sports and Exercise. 2015;47(8):1587-1595. doi:10.1249/MSS.0000000000000571

Study Design and Methodology

Understanding how a study was designed helps assess the strength of its conclusions. Key methodological factors to evaluate include:

• Sample size — larger studies (n=50+) provide more reliable results than small studies (n=10-15). Small sample sizes increase the risk of false positives and limit the ability to detect moderate effect sizes
• Study duration — creatine research requires adequate duration for muscle saturation (minimum 4 weeks for maintenance dosing, 1 week for loading). Studies shorter than this may miss the full effect
• Blinding — double-blind, placebo-controlled designs (where neither researchers nor participants know who receives creatine) are the gold standard for minimising bias
• Population studied — results from trained athletes may not fully apply to untrained individuals, and vice versa. Age, sex, and dietary habits (particularly vegetarian status) also influence creatine response
• Outcome measures — direct measures (muscle biopsy, MRS imaging) are more informative than indirect proxies (blood markers, performance tests) for assessing creatine uptake and metabolism

Clinical Implications and Practical Relevance

This research contributes to our understanding of creatine in several practical ways:

For athletes and fitness enthusiasts: The findings support the use of creatine monohydrate as a safe, effective ergogenic aid. The standard dosing protocol of 3-5g daily remains well-supported by the cumulative evidence base including this study.

For healthcare professionals: Understanding the specific mechanisms and safety data from studies like this helps clinicians provide evidence-based guidance to patients who ask about creatine supplementation. The research consistently shows a favourable safety profile at recommended doses.

For the Malaysian context: While most creatine research is conducted in Western populations, the fundamental biochemistry (ATP-phosphocreatine system) is universal. Malaysian consumers can apply these findings with confidence, adjusting for local factors like tropical climate (increased hydration needs) and halal dietary requirements (synthetic creatine monohydrate is permissible).

How This Fits Into the Broader Evidence

No single study should be used to make definitive claims about creatine supplementation. Instead, this research should be viewed as one piece of a much larger evidence base:

• The ISSN Position Stand (2017) synthesises hundreds of studies into comprehensive recommendations
• Multiple systematic reviews and meta-analyses confirm creatine’s effects on strength, power, and lean mass
• Long-term safety data spanning up to 5 years shows no adverse effects at recommended doses

For a complete overview of the evidence, explore our Research Library which covers 60+ landmark creatine studies.

Sources & References

This article is based on the RCT by Chilibeck et al. and contextualized with Smith-Ryan et al. (2021), Forbes et al. (2022), and Kreider et al. (2017). All citations reference PubMed-indexed publications.

Further Reading

• creatine dosage guide
• creatine safety profile
• creatine monohydrate
• creatine for muscle building
• how creatine works
• buying creatine in Malaysia