01
Strength training is a training method, not a list of exercises.
Strength training uses external resistance — bodyweight, free weights, machines, bands or other forms of load — to create a repeated force demand. The exercise matters, but so do the load, repetitions, sets, frequency, range of motion, rest and how close the work comes to fatigue. Two people can perform the same squat and still be doing meaningfully different training.
02
Strength changes through both muscle and nervous-system adaptation.
Human Foundations uses a practical two-part model: the muscles provide force potential, while the nervous system coordinates how that force is recruited and expressed. Regular progressive resistance training can increase muscle size, improve motor coordination and increase the ability to produce force. Early improvements are not explained only by bigger muscles; learning the task and coordinating it better also matter.
03
Specificity decides what the training is actually preparing you for.
The body adapts to the demands it repeatedly encounters. If the goal is maximal strength, the programme should eventually include meaningful exposure to relatively heavy loads and the movements or force patterns that matter. If the goal is muscle growth, several loading strategies can work when enough challenging work is accumulated. If the goal is power, the ability to produce force quickly becomes part of the task. ORIGIN starts with the desired adaptation, then chooses the work.
04
Progression means increasing the relevant demand — not making every session more dramatic.
A stimulus that never changes eventually provides less reason to adapt. Progression can come from more load, more repetitions, more sets, greater range, improved execution, more weekly exposure or another variable that is relevant to the goal. Human Foundations treats progression as gradual and purposeful. Randomly adding difficulty, fatigue or complexity is not the same thing as progressive overload.
05
There is no single perfect resistance-training prescription.
A 2023 network meta-analysis covering 178 strength studies and 119 hypertrophy studies found that all tested resistance-training prescriptions outperformed no exercise for strength and muscle growth. Higher loads produced the strongest gains in maximal strength, while multiple-set programmes were especially relevant for hypertrophy. The practical message is not that everyone needs one exact programme; it is that different variables solve different problems.
06
Current ACSM guidance supports simple, progressive training over unnecessary complexity.
The 2026 American College of Sports Medicine position stand concluded that healthy adults can improve strength, muscle size and physical performance through progressive resistance training, while relatively few prescription variables meaningfully change the main outcomes. Strength was enhanced by heavier loading, full range of motion, multiple sets and at least two sessions per week. Training equipment type, exercise complexity, set structure and periodisation did not consistently determine whether adaptation occurred.
07
Training to failure is optional, not a badge of effort.
Systematic-review evidence does not show that every set must reach momentary muscular failure to improve strength or muscle size. Training close enough to create a meaningful stimulus can work without turning every set into maximal effort. Going to failure may be useful in some contexts, but it also increases acute fatigue. ORIGIN therefore treats failure as a programming variable, not as proof that the session counted.
08
Frequency should support the goal and the person's ability to recover.
For general health, the World Health Organization recommends muscle-strengthening activity involving the major muscle groups on two or more days per week for adults. Performance programming can require more or less exposure depending on training status, volume, exercise selection and the target adaptation. Frequency is useful only when the person can recover enough to repeat high-quality work.
09
Warm up to prepare for the work, not to prove fitness before the session starts.
Human Foundations separates a general warm-up from specific preparation. General movement raises readiness; specific warm-up sets increasingly resemble the movements and demands that follow. A 2025 meta-analysis found that increasing muscle temperature improved fast, rate-dependent force production more consistently than maximal force itself, while no single warm-up modality was clearly superior. A useful strength warm-up therefore prepares for the task without turning the warm-up into another workout.
10
Technique should make the training repeatable, understandable and appropriate.
There is rarely one visually perfect version of every exercise for every body. Useful technique creates a position and range the person can control, matches the training goal and keeps the load appropriate to current capacity. Full range of motion can be valuable when it is available and relevant, but range can be adapted when anatomy, mobility, experience or symptoms require it. Good coaching changes the exercise to the human rather than forcing the human into a template.
11
Strength training has a clear scope boundary.
General strength education is not injury diagnosis, rehabilitation or medical treatment. Stop or modify training when pain is sharp, severe, rapidly worsening or accompanied by neurological, cardiovascular or other concerning symptoms. Persistent pain, suspected injury, unexplained weakness or symptoms that make training unsafe require appropriate professional assessment rather than increasingly aggressive exercise.
REF
Sources & evidence.
- American College of Sports Medicine. Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults: An Overview of Reviews. Medicine & Science in Sports & Exercise. 2026.Current ACSM position stand synthesising resistance-training prescription variables for strength, hypertrophy, power and physical function.
- Currier BS, et al. Resistance training prescription for muscle strength and hypertrophy in healthy adults: a systematic review and Bayesian network meta-analysis. British Journal of Sports Medicine. 2023.Large network meta-analysis showing that many resistance-training prescriptions work, with higher loads favouring maximal strength and multiple sets supporting hypertrophy.
- Grgic J, et al. Effects of resistance training performed to repetition failure or non-failure on muscular strength and hypertrophy: a systematic review and meta-analysis. Journal of Sport and Health Science. 2022.Found that training to momentary failure is not required for gains in strength or muscle size.
- World Health Organization. Guidelines on physical activity and sedentary behaviour. 2020.Public-health guidance recommending muscle-strengthening activity involving major muscle groups on two or more days per week for adults.
- Wilson CJ, Nunes JP, Blazevich AJ. The effect of muscle warm-up on voluntary and evoked force-time parameters: a systematic review and meta-analysis with meta-regression. Journal of Sport and Health Science. 2025.Found that increased muscle temperature improved fast, rate-dependent force production more consistently than maximal force; no single active or passive warm-up mode was clearly superior.
- Refalo MC, et al. Influence of Resistance Training Proximity-to-Failure on Skeletal Muscle Hypertrophy: A Systematic Review with Meta-analysis. Sports Medicine. 2023.Supports treating proximity to failure as a programming variable rather than a universal requirement.