Lanhers 2015: Creatine and Upper Body Strength Meta-Analysis

TL;DR — Lanhers 2015 Upper Body Strength

Lanhers et al. (2015) conducted a focused meta-analysis examining creatine’s effects specifically on upper body strength. The results confirmed that creatine supplementation produces statistically significant improvements in upper body strength measures, particularly in exercises like the bench press. This analysis provided targeted evidence that creatine benefits are not limited to lower body or total body measures.

What Was the Research Question?

While previous meta-analyses (such as Branch 2003) examined creatine’s effects on overall body composition and performance, Lanhers et al. specifically asked: does creatine supplementation improve upper body strength? This focused approach allowed for a more precise estimation of the effect on a specific performance domain.

Citation: Lanhers C, et al. (2015). Creatine supplementation and upper limb strength performance: a systematic review and meta-analysis. Sports Medicine, 45(9), 1285-1294.

How Was the Study Conducted?

The researchers conducted a systematic review following PRISMA guidelines. They searched multiple databases for randomised controlled trials comparing creatine supplementation to placebo on upper body strength outcomes. Studies were included if they measured maximal voluntary strength of the upper limbs (bench press, chest press, arm curl, and similar exercises). Effect sizes were calculated and pooled using standard meta-analytic methods.

What Were the Key Findings?

Upper Body Strength

Creatine supplementation produced a significant improvement in upper body maximal strength compared to placebo. The pooled effect size confirmed that creatine users consistently outperformed placebo groups on measures of upper limb strength.

Bench Press Specifically

The bench press was the most commonly studied upper body exercise across included trials. Creatine supplementation showed consistent benefits for 1RM bench press performance, making it one of the most well-supported applications of creatine supplementation.

Dose-Response Pattern

Studies using a loading phase (typically 20g/day for 5-7 days) followed by maintenance (3-5g/day) tended to show effects sooner than studies using only a maintenance dose, though both protocols were effective over sufficient duration (RB et al., 2017) .

Why Does This Study Matter?

The Lanhers 2015 meta-analysis matters because it isolates upper body strength as a specific outcome. Many gym-goers are particularly interested in bench press and upper body development. This meta-analysis provides direct evidence that creatine helps where many trainees care most.

It also provided evidence that creatine’s ergogenic effects are consistent across different types of upper body exercises — not just compound movements like the bench press, but also isolation movements targeting the arms and shoulders.

Practical Implications

1. Bench press responds well to creatine — Strong evidence for improved 1RM performance
2. Arm exercises also benefit — Not limited to compound pressing movements
3. Loading accelerates results — But is not strictly necessary for long-term gains
4. Consistent supplementation matters — Daily intake of 3-5g produces reliable effects
5. Combine with progressive overload — Creatine enhances training adaptation, not just acute performance

Limitations

• Most studies included young, resistance-trained males
• Different measurement protocols across studies (1RM, 5RM, isokinetic testing)
• Duration of supplementation varied from days to weeks
• Could not fully control for dietary protein intake across studies
• Some included studies had small sample sizes

Malaysian Context

Upper body strength is important for many Malaysian fitness enthusiasts, from gym-goers focusing on bench press to athletes in sports like badminton and sepak takraw that demand upper body power. This meta-analysis confirms that creatine monohydrate — available affordably from Malaysian supplement retailers — can meaningfully improve upper body strength when combined with consistent training. At typical Malaysian gym membership costs of RM100-200/month, adding creatine at fewer than RM1/day represents excellent value for strength gains.

Sources and References

• Lanhers C, et al. (2015). Creatine supplementation and upper limb strength performance. Sports Medicine, 45(9), 1285-1294.
• Kreider RB, et al. (2017). ISSN position stand. JISSN, 14, 18.

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.

Further Reading

• creatine dosage guide
• creatine monohydrate
• creatine for muscle building
• creatine loading phase
• buying creatine in Malaysia
• creatine for teenagers

Sources & References

Full citations available in our Research Library.