Stretching before training has been debated for decades, but the current body of evidence shows that the answer is not simply yes or no; it depends on goals, timing, duration, and individual need.
A recent meta-analysis examining 35 studies (n = 1,179) found that chronic static stretching improved dynamic strength by a small but significant amount but showed no benefit for isometric strength. More importantly, when static stretching was paired too closely with resistance training, especially for longer than 8 weeks, it resulted in reduced strength gains. This emphasizes that long-duration static stretching may interfere with strength development when applied before or alongside resistance training sessions.
Additional research reinforces this conclusion. Simic et al. (2013) found that pre-exercise static stretching can decrease maximal strength and power performance, especially when held for extended durations. However, this same narrative shifts when we look at dosage. Behm et al. (2016) reported that when static stretching is limited to 60 seconds or less, range of motion still improves while strength and power output is either maintained or slightly enhanced. This means short, intentional stretching can support mobility without compromising performance.
It is also critical to acknowledge that static stretching has clear value, particularly for individuals with mobility restrictions. Ingram et al. found that chronic static stretching produced large improvements in flexibility (Hedges’ g = 0.96), especially in those with limited baseline range of motion. This reinforces that static stretching is not the problem; the misapplication is. Stretching has a place, but that place is determined by individual need and session goals.
A missing component in many of these studies is the lack of individualized assessment. There is no indication that participants were screened to determine whether they actually needed a greater range of motion, or whether the prescribed stretches had direct relevance to the positions required in their resistance training. Range of motion is only valuable if it:
- Solves a real movement limitation
- Reduces pain
- Transfers to a training or athletic position
- Can be actively controlled and expressed under load
Without this context, stretching becomes generalized rather than purposeful. Stretching for the sake of stretching is a poor exchange of training time if that same time could be spent improving movement deficits, end-range strength, or pattern-specific control.
There is also a difference between passive flexibility and active mobility. None of the reviewed studies included end-range loading strategies such as Progressive Angular Isometric Loading (PAILs) or Regressive Angular Isometric Loading (RAILs), which require isometric contraction and active neurological drive at end range. Unlike passive static stretching, these methods increase usable range and strength simultaneously. It is possible that if mobility training demanded strength at newly acquired ranges, rather than passive relaxation into them, the negative effects on strength outcomes might be reduced or eliminated.
The real takeaway is not that stretching is good or bad. The conclusion supported by the literature is that:
- Static stretching increases range of motion
- Excessive static stretching before strength/power work can reduce performance
- Short-duration static stretching (<60 seconds) maintains performance while improving mobility
- Static stretching has clear benefit for those with genuine flexibility restrictions
- Individual assessment and intentional programming matter more than the modality itself
The better question is not, “Should we stretch before training?” but rather: “Does this individual need increased range of motion, and will this stretching method improve their ability to express better movement, strength, or performance in this session?”
Stretching is not the issue. Random, unmeasured, and poorly timed stretching is.
From a practical coaching standpoint, I have found that context and sequencing allow mobility work to complement rather than compete with strength and performance goals. In my practice, I still use and support passive stretching when it serves the athlete or client, but I never rely on it as a stand-alone preparation strategy.
My current protocol, which has produced consistent positive outcomes, follows this structure:
- 2 minutes of passive stretching to reduce tissue guarding when needed(While no study prescribes exactly 2 minutes of passive static stretching before a session, research indicates that holds of 30-60 seconds are effective for ROM gains, and holds longer than 60 seconds can impair strength/power. Given that, I adopt a 2-minute passive stretch as a purposeful, yet moderate duration, intended to prime mobility without decreasing performance, then follow it with active mobility and neural priming.)
- PAILs/RAILs to create active end-range strength and neural intent
- Controlled Articular Rotations (CARS) to map and own new ranges
- Dynamic movement integration to convert mobility into usable patterns
- CNS primer (isometrics, plyometrics, medicine ball work, etc.) to elevate neural drive before training
This sequencing respects both sides of the research: it acknowledges that prolonged passive stretching alone can dampen performance, while also recognizing that mobility work, when active, intentional, and paired with neural activation, can enhance movement quality without compromising strength or power.
In application, mobility should not be a drain on performance, but rather a catalyst that prepares the system to express force more efficiently in the session that follows.
References;
Behm, D. G., Blazevich, A. J., Kay, A. D., & McHugh, M. (2016). Acute effects of muscle stretching on physical performance, range of motion, and injury incidence in healthy active individuals: A systematic review. Applied Physiology, Nutrition, and Metabolism, 41(1), 1-11. https://doi.org/10.1139/apnm-2015-0235
Simic, L., Sarabon, N., & Markovic, G. (2013). Does pre-exercise static stretching inhibit maximal muscular performance? A meta-analytical review. Scandinavian Journal of Medicine & Science in Sports, 23(2), 131-148. https://doi.org/10.1111/j.1600-0838.2012.01444.x Kay, A. D., & Blazevich, A. J. (2012). Effect of acute static stretch on maximal muscle performance: A systematic review. Medicine & Science in Sports & Exercise, 44(1), 154-164. https://doi.org/10.1249/MSS.0b013e318225cb27
