[{"data":1,"prerenderedAt":777},["ShallowReactive",2],{"lexique-en-atp-adenosine-triphosphate":3,"lexique-all-en":267,"lexique-trans-en-atp-adenosine-triphosphate":773},{"id":4,"title":5,"author":6,"body":7,"category":254,"description":255,"extension":256,"faq":257,"lang":258,"lead":257,"letter":259,"meta":260,"navigation":261,"path":262,"ref":13,"related":257,"resources":257,"seo":263,"sources":257,"stem":264,"updated":265,"__hash__":266},"lexique/lexique/en/atp-adenosine-triphosphate.md","ATP (Adenosine Triphosphate)","Ekklo",{"type":8,"value":9,"toc":243},"minimark",[10,14,19,31,34,37,40,45,48,67,69,73,141,143,147,150,161,167,169,173,206,208,212,226,228,232],[11,12,5],"h1",{"id":13},"atp-adenosine-triphosphate",[15,16,18],"h4",{"id":17},"definition","Definition",[20,21,22,26,27,30],"p",{},[23,24,25],"strong",{},"ATP"," (Adenosine Triphosphate) is ",[23,28,29],{},"the universal energy molecule of every living cell",". Every muscle contraction, every nerve impulse, every chemical reaction requiring energy uses ATP as a direct fuel.",[32,33],"blockquote",{},[20,35,36],{},"💡 You produce and consume your body weight in ATP every single day. Stocks are constantly recycled — they are NOT stored.",[38,39],"hr",{},[41,42,44],"h3",{"id":43},"how-does-atp-work","How does ATP work?",[20,46,47],{},"ATP is made of one adenosine + 3 phosphate groups. When the cell needs energy:",[49,50,51,55,61,64],"ul",{},[52,53,54],"li",{},"Cuts the third phosphate (ATP → ADP + Pi)",[52,56,57,58],{},"This bond breaking ",[23,59,60],{},"releases ~7.3 kcal/mol of energy",[52,62,63],{},"The cell uses that energy to function",[52,65,66],{},"ADP is recycled back to ATP using available fuels",[38,68],{},[41,70,72],{"id":71},"the-3-atp-regeneration-systems","The 3 ATP regeneration systems",[74,75,76,95],"table",{},[77,78,79],"thead",{},[80,81,82,86,89,92],"tr",{},[83,84,85],"th",{},"System",[83,87,88],{},"Speed",[83,90,91],{},"Duration",[83,93,94],{},"Fuel",[96,97,98,113,127],"tbody",{},[80,99,100,104,107,110],{},[101,102,103],"td",{},"ATP-PC (anaerobic alactic)",[101,105,106],{},"Instant",[101,108,109],{},"0-10 sec",[101,111,112],{},"Phosphocreatine",[80,114,115,118,121,124],{},[101,116,117],{},"Glycolytic (anaerobic lactic)",[101,119,120],{},"Fast",[101,122,123],{},"10 sec - 2 min",[101,125,126],{},"Glucose (no O2)",[80,128,129,132,135,138],{},[101,130,131],{},"Aerobic",[101,133,134],{},"Slow",[101,136,137],{},"2 min+",[101,139,140],{},"Glucose, fats (with O2)",[38,142],{},[41,144,146],{"id":145},"atp-and-strength-training","ATP and strength training",[20,148,149],{},"For an explosive lift (1RM):",[49,151,152,155,158],{},[52,153,154],{},"The first 2-3 seconds: stored ATP",[52,156,157],{},"3-10 seconds: phosphocreatine regenerates ATP (ATP-PC)",[52,159,160],{},"10 seconds+: glycolytic system takes over",[20,162,163,166],{},[23,164,165],{},"Conclusion",": maximum-strength sets must stay under 10 sec to fully exploit the ATP-PC system. Beyond that, output drops sharply.",[38,168],{},[41,170,172],{"id":171},"how-to-optimize-your-atp-system","How to optimize your ATP system",[49,174,175,182,188,194,200],{},[52,176,177,178,181],{},"✅ ",[23,179,180],{},"Creatine",": 3-5 g/day boosts phosphocreatine stores (+15-20%)",[52,183,177,184,187],{},[23,185,186],{},"Quality sleep",": ATP regenerates during sleep",[52,189,177,190,193],{},[23,191,192],{},"Sufficient carbs",": 4-6 g/kg/day for active people",[52,195,177,196,199],{},[23,197,198],{},"B vitamins",": cofactors for ATP production (B1, B2, B3)",[52,201,177,202,205],{},[23,203,204],{},"Magnesium",": required for the ATP-Mg complex used during contraction",[38,207],{},[41,209,211],{"id":210},"common-mistakes","Common mistakes",[49,213,214,217,220,223],{},[52,215,216],{},"❌ Thinking you can \"store\" ATP (impossible, dynamic balance)",[52,218,219],{},"❌ Ignoring rests between heavy sets (3-5 min for ATP-PC)",[52,221,222],{},"❌ Sets that are too long while expecting max strength",[52,224,225],{},"❌ Skipping creatine (the only proven supplement that targets the ATP-PC system)",[38,227],{},[41,229,231],{"id":230},"key-takeaways","Key takeaways",[20,233,234,235,238,239,242],{},"ATP is ",[23,236,237],{},"the universal energy unit of your cells",". Three systems regenerate it according to effort intensity. Optimize ATP via creatine, sleep, carbs, magnesium. ",[23,240,241],{},"Without ATP, no contraction. No contraction, no training",".",{"title":244,"searchDepth":245,"depth":245,"links":246},"",2,[247,249,250,251,252,253],{"id":43,"depth":248,"text":44},3,{"id":71,"depth":248,"text":72},{"id":145,"depth":248,"text":146},{"id":171,"depth":248,"text":172},{"id":210,"depth":248,"text":211},{"id":230,"depth":248,"text":231},"methods","ATP is the universal energy currency of the body. Every muscle contraction, every cellular function depends on it.","md",null,"en","A",{},true,"/lexique/en/atp-adenosine-triphosphate",{"title":5,"description":255},"lexique/en/atp-adenosine-triphosphate","2026-07-27","yXpP44-pNsi-lob0A6UfUIxwql7AOwmJwtWAX4U7tzM",[268,272,276,277,281,285,289,293,297,301,305,309,313,317,321,325,329,333,337,341,345,349,353,357,361,365,369,373,377,381,385,389,393,396,400,404,408,412,416,420,424,428,432,436,440,444,448,452,456,460,464,468,472,476,480,484,488,492,496,500,504,508,512,516,520,524,528,532,536,540,544,548,552,556,560,564,568,572,576,580,584,588,592,596,600,604,608,612,616,621,625,629,633,637,641,645,649,653,657,661,665,669,673,677,681,685,689,693,697,701,705,709,713,717,721,725,729,733,737,741,745,749,753,757,761,765,769],{"title":269,"description":270,"slug":271,"ref":271},"1RM (One-Rep Max)","1RM is the heaviest load you can lift for one clean repetition — the reference for strength programming and percentages.","one-rep-max",{"title":273,"description":274,"slug":275,"ref":275},"AMRAP - As Many Reps/Rounds As Possible","AMRAP is a high-intensity training format: do as many reps or rounds as possible in a fixed time. CrossFit favorite.","amrap-as-many-reps-rounds-as-possible",{"title":5,"description":255,"slug":13,"ref":13},{"title":278,"description":279,"slug":280,"ref":280},"Abduction","Discover what abduction is in bodybuilding, this movement which moves a limb away from the central axis of the body to develop the stabilizing muscles.","abduction",{"title":282,"description":283,"slug":284,"ref":284},"Active recovery","Active recovery uses light activity to speed muscle recovery. Find out how to effectively integrate it into your routine.","active-recovery",{"title":286,"description":287,"slug":288,"ref":288},"Adduction","Adduction is a movement that brings a body part toward the body's midline. Opposite of abduction.","adduction",{"title":290,"description":291,"slug":292,"ref":292},"Aerobic System","The aerobic system produces energy with oxygen, fueling long-duration efforts. It's the foundation of endurance and recovery.","aerobic-system",{"title":294,"description":295,"slug":296,"ref":296},"Anabolic window","The anabolic window is the post-workout period considered ideal for nutrition. The reality: it's much longer than thought.","anabolic-window",{"title":298,"description":299,"slug":300,"ref":300},"Anaerobic System","The anaerobic system produces energy without oxygen — for explosive, intense efforts. Limited but powerful, it fuels strength and sprints.","anaerobic-system",{"title":302,"description":303,"slug":304,"ref":304},"BCAA","BCAAs are 3 essential branched-chain amino acids: leucine, isoleucine, valine. Discover their real usefulness, timing, and whether you actually need them.","bcaa",{"title":306,"description":307,"slug":308,"ref":308},"BMI","BMI (Body Mass Index) is a quick health screening tool, but it doesn't account for body composition. Limited but useful.","bmi-body-mass-index",{"title":310,"description":311,"slug":312,"ref":312},"BMR","BMR (Basal Metabolic Rate) is your resting metabolism — the calories burned just to stay alive. Learn how to calculate and optimize it for your fitness goals.","bmr",{"title":314,"description":315,"slug":316,"ref":316},"Beta-alanine","Beta-alanine is an amino acid that raises muscle carnosine and can help buffering in efforts of ~1–4 minutes; tingles (paresthesia) are common.","beta-alanine",{"title":318,"description":319,"slug":320,"ref":320},"Block periodization","Block periodization concentrates training into focused blocks (accumulation, intensification, realization) with clear priorities.","block-periodization",{"title":322,"description":323,"slug":324,"ref":324},"Blood flow restriction (BFR)","BFR training uses cuffs to partially restrict blood flow so lighter loads can still stimulate hypertrophy — with safety constraints.","blood-flow-restriction",{"title":326,"description":327,"slug":328,"ref":328},"Body fat percentage","Body fat percentage measures the share of fat in your total body mass. A key indicator of body composition.","body-fat-percentage",{"title":330,"description":331,"slug":332,"ref":332},"Body recomposition","Body recomposition is gaining muscle and losing fat at the same time. Possible but slow — discover the conditions for success.","body-recomposition",{"title":334,"description":335,"slug":336,"ref":336},"Bodyweight","Bodyweight training uses your own body as resistance. No equipment, anywhere, scalable to any level.","bodyweight",{"title":338,"description":339,"slug":340,"ref":340},"Caffeine","Caffeine is a stimulant that can raise alertness and training performance; dose and timing matter for sleep and anxiety.","caffeine",{"title":342,"description":343,"slug":344,"ref":344},"Calisthenics","Calisthenics builds strength and skill primarily with bodyweight patterns (push-ups, pull-ups, dips, levers) and progressive variations.","calisthenics",{"title":346,"description":347,"slug":348,"ref":348},"Calorie Maintenance","Caloric maintenance is the calorie level keeping your weight stable. Foundation of any nutritional plan.","calorie-maintenance",{"title":350,"description":351,"slug":352,"ref":352},"Calorie Surplus","A caloric surplus means consuming more calories than you burn. Mandatory mechanism for serious muscle building.","calorie-surplus",{"title":354,"description":355,"slug":356,"ref":356},"Calorie deficit","A caloric deficit means consuming fewer calories than you burn. It's the only proven mechanism for fat loss. Learn how to set yours up properly.","calorie-deficit",{"title":358,"description":359,"slug":360,"ref":360},"Calories","Calories measure the energy provided by food. Understanding your caloric needs is the foundation of every fitness goal.","calories",{"title":362,"description":363,"slug":364,"ref":364},"Carbohydrates","Carbohydrates are the main source of energy for intense training. Discover your needs, the different types and their role in performance.","carbohydrates",{"title":366,"description":367,"slug":368,"ref":368},"Casein","Casein is a slower-digesting dairy protein, often used between meals or at night to help hit daily protein targets.","casein",{"title":370,"description":371,"slug":372,"ref":372},"Circuit training","Circuit training chains several exercises with little rest. Ideal for burning calories and improving cardiovascular fitness while keeping muscle.","circuit-training",{"title":374,"description":375,"slug":376,"ref":376},"Cluster sets","Cluster sets break a set into mini-bouts with short intra-set rests to keep bar speed and load high — useful for strength and power.","cluster-sets",{"title":378,"description":379,"slug":380,"ref":380},"Collagen","Collagen is a structural protein; supplements may support connective tissue goals but are incomplete for total muscle protein needs.","collagen",{"title":382,"description":383,"slug":384,"ref":384},"Compound exercise","A compound exercise trains several joints and muscle groups at once (squat, hinge, press, pull) — high return for strength and hypertrophy.","compound-exercise",{"title":386,"description":387,"slug":388,"ref":388},"Concentric (Phase)","The concentric phase is the lifting movement, where the muscle shortens under load. It's the active phase that produces force.","concentric-phase",{"title":390,"description":391,"slug":392,"ref":392},"Cool-down","A cool-down is light activity after hard work to gradually lower intensity; useful for feel and transition, not magic recovery.","cool-down",{"title":180,"description":394,"slug":395,"ref":395},"Creatine is the most studied supplement in sports nutrition, proven to boost strength, power and muscle mass. Learn dosage, timing and real benefits.","creatine",{"title":397,"description":398,"slug":399,"ref":399},"Cutting","A cutting phase is a period of caloric deficit aimed at losing fat while preserving muscle. Discover how to do it without losing your hard-earned gains.","dried",{"title":401,"description":402,"slug":403,"ref":403},"DOMS (Delayed Onset Muscle Soreness)","DOMS is the muscle soreness that appears 24-72h after exercise. Discover its causes, how to manage it, and what it really means for your progress.","doms-delayed-onset-muscle-soreness",{"title":405,"description":406,"slug":407,"ref":407},"Deload","Deload is an active recovery week where you intentionally reduce volume and intensity to allow your body to fully recover and come back stronger.","deload",{"title":409,"description":410,"slug":411,"ref":411},"Dietary fiber","Dietary fiber supports satiety, digestion and cardiometabolic health; useful in fat-loss adherence plans.","dietary-fiber",{"title":413,"description":414,"slug":415,"ref":415},"Dropset","A dropset extends a set by reducing the load when failure hits. Powerful intensification method for hypertrophy.","dropset",{"title":417,"description":418,"slug":419,"ref":419},"EMOM - Every Minute On the Minute","EMOM (Every Minute On the Minute) is a training format where you start a set at the top of each minute and rest until the next.","emom-every-minute-on-the-minute",{"title":421,"description":422,"slug":423,"ref":423},"Eccentric (Phase)","The eccentric phase is the lowering movement, where the muscle lengthens under tension. It's the most damaging phase and the key driver of hypertrophy.","eccentric-phase",{"title":425,"description":426,"slug":427,"ref":427},"Electrolytes","Electrolytes (sodium, potassium, magnesium…) are minerals that conduct electrical signals and help fluid balance, especially with heavy sweating.","electrolytes",{"title":429,"description":430,"slug":431,"ref":431},"Exercise selection","Exercise selection is choosing movements that fit the goal, equipment, anatomy and skill — the foundation of a good program.","exercise-selection",{"title":433,"description":434,"slug":435,"ref":435},"Extension","Extension is the anatomical movement that increases the angle between two body segments. Opposite of flexion.","extension",{"title":437,"description":438,"slug":439,"ref":439},"Fat mass","Fat mass is the total weight of fat tissue. Essential for survival, but excess harms health and aesthetics.","fat-mass",{"title":441,"description":442,"slug":443,"ref":443},"Fibers","Muscle fibers are the cells that make up muscle. Two main types — Type I (slow) and Type II (fast) — define your physical potential.","fibers",{"title":445,"description":446,"slug":447,"ref":447},"Flexion","Flexion is the anatomical movement that decreases the angle between two body segments. Opposite of extension.","flexion",{"title":449,"description":450,"slug":451,"ref":451},"Foam rolling","Foam rolling is a myofascial self-massage technique to release muscle tension. Find out how to use it effectively to improve recovery and mobility.","foam-rolling",{"title":453,"description":454,"slug":455,"ref":455},"For Time","For Time is a training format where you complete a fixed amount of work as fast as possible. Race against the clock.","for-time",{"title":457,"description":458,"slug":459,"ref":459},"Full Body","A full body program trains all major muscle groups in each session, 2-4 times per week. Ideal for beginners and strength training.","full-body",{"title":461,"description":462,"slug":463,"ref":463},"German Volume Training (GVT)","GVT is a high-volume hypertrophy scheme classically built around 10×10 on big lifts with short rests — very fatiguing.","german-volume-training",{"title":465,"description":466,"slug":467,"ref":467},"Glycogen","Glycogen is the storage form of carbohydrate in muscle and liver — the primary fuel for hard training.","glycogen",{"title":469,"description":470,"slug":471,"ref":471},"HIIT","HIIT (High-Intensity Interval Training) alternates short hard efforts with recovery to improve fitness and calorie burn in less time.","hiit",{"title":473,"description":474,"slug":475,"ref":475},"Hydration","Hydration is maintaining fluid balance for performance, cognition and recovery — water plus electrolytes when sweat losses are high.","hydration",{"title":477,"description":478,"slug":479,"ref":479},"Hypertrophy","Muscle hypertrophy is the increase in muscle fiber size. It's the primary mechanism behind muscle growth from resistance training.","hypertrophy",{"title":481,"description":482,"slug":483,"ref":483},"Hypertrophy Training","Hypertrophy training aims to maximize muscle growth using moderate loads (65-85% 1RM) with 8-15 repetitions per set.","hypertrophy-training",{"title":485,"description":486,"slug":487,"ref":487},"Intermittent fasting","Intermittent fasting restricts eating to time windows; fat loss still depends mainly on calorie balance and protein.","intermittent-fasting",{"title":489,"description":490,"slug":491,"ref":491},"Intra-workout","Intra-workout refers to nutrition consumed during training to maintain energy, hydration and performance on long sessions.","intra-workout",{"title":493,"description":494,"slug":495,"ref":495},"Isolation exercise","An isolation exercise targets mainly one joint and one muscle group (curl, lateral raise, leg extension) to add local volume or correct imbalances.","isolation-exercise",{"title":497,"description":498,"slug":499,"ref":499},"Isometric","Isometric contraction is when the muscle produces tension without changing length. No visible movement, intense work.","isometric-contraction",{"title":501,"description":502,"slug":503,"ref":503},"LISS","LISS (Low-Intensity Steady State) is continuous easy cardio at a conversational pace — useful for recovery, aerobic base and extra calorie burn.","liss",{"title":505,"description":506,"slug":507,"ref":507},"Lean bulk","A lean bulk is a slow, controlled surplus aimed at maximizing muscle gain while limiting fat gain.","lean-bulk",{"title":509,"description":510,"slug":511,"ref":511},"Lean mass","Lean mass is everything in your body except fat: muscles, bones, organs, water. A real performance indicator.","lean-mass",{"title":513,"description":514,"slug":515,"ref":515},"Linear periodization","Linear periodization progresses from higher volume/lower intensity toward lower volume/higher intensity over weeks.","linear-periodization",{"title":517,"description":518,"slug":519,"ref":519},"Lipids (Fats)","Lipids are essential for hormone production and vitamin absorption. Discover your needs, the right sources and their role in bodybuilding.","lipids-fats",{"title":521,"description":522,"slug":523,"ref":523},"Macrocycle","A macrocycle is the global organization of your training over 3-12 months. The highest level of periodization, your annual game plan.","macrocycle",{"title":525,"description":526,"slug":527,"ref":527},"Macronutrients (Macros)","Macronutrients are the 3 main types of nutrients: proteins, carbohydrates and lipids. Their balance is crucial for performance and body composition.","macronutrients-macros",{"title":529,"description":530,"slug":531,"ref":531},"Maintenance","Maintenance is the calorie level at which your weight remains stable. The neutral baseline for any nutritional strategy.","maintenance",{"title":533,"description":534,"slug":535,"ref":535},"Mass gain","Mass gain (or bulk) is a controlled caloric surplus phase aimed at building muscle. Discover how to do it without gaining excess fat.","mass-gain",{"title":537,"description":538,"slug":539,"ref":539},"Meal timing","Meal timing is the strategic distribution of your meals around training and through the day to optimize performance and recovery.","meal-timing",{"title":541,"description":542,"slug":543,"ref":543},"Mesocycle","A mesocycle is a 4-8 week training block with a specific objective (hypertrophy, strength, peak, deload). The cornerstone of periodization.","mesocycle",{"title":545,"description":546,"slug":547,"ref":547},"Microcycle","A microcycle is the smallest planning unit in bodybuilding: generally 1 week of training. This is your weekly routine.","microcycle",{"title":549,"description":550,"slug":551,"ref":551},"Mind-muscle connection","Mind-muscle connection is the intentional focus on feeling the target muscle contract — useful for hypertrophy technique and isolation work.","mind-muscle-connection",{"title":553,"description":554,"slug":555,"ref":555},"Mobility","Mobility is the ability to actively control range of motion. Find out how to improve your mobility to optimize your performance.","mobility",{"title":557,"description":558,"slug":559,"ref":559},"Muscle failure","Muscle failure is the point where you cannot complete another clean rep with the target technique — RIR 0 / RPE 10.","muscle-failure",{"title":561,"description":562,"slug":563,"ref":563},"Muscle mass","Muscle mass is the total weight of muscles in the body. Key indicator of strength, metabolism, and longevity.","muscle-mass",{"title":565,"description":566,"slug":567,"ref":567},"Muscular Endurance Training","Muscular endurance training develops the ability to sustain prolonged effort. Light loads, high reps, short rests.","muscular-endurance-training",{"title":569,"description":570,"slug":571,"ref":571},"Muscular endurance","Muscular endurance is a muscle's capacity to sustain repeated or prolonged contractions without excessive fatigue. Foundation of many sports.","muscular-endurance",{"title":573,"description":574,"slug":575,"ref":575},"Muscular strength","Muscular strength is the maximum force a muscle (or group) can produce. The fundamental physical quality of any athlete.","muscular-strength",{"title":577,"description":578,"slug":579,"ref":579},"Myo-reps","Myo-reps is an intensification method: an activation set near failure, then mini-sets with short rests to accumulate effective reps.","myo-reps",{"title":581,"description":582,"slug":583,"ref":583},"NEAT","NEAT is the energy you burn through all your daily activities outside of training. The most underestimated lever of your body composition.","neat",{"title":585,"description":586,"slug":587,"ref":587},"Omega-3 fatty acids","Omega-3 fats (EPA/DHA) support general health; in athletes they are discussed for recovery and inflammation — food first, then supplements if needed.","omega-3",{"title":589,"description":590,"slug":591,"ref":591},"Overreaching","Overreaching is a short-term performance drop from hard training that recovers with planned rest — unlike prolonged overtraining.","overreaching",{"title":593,"description":594,"slug":595,"ref":595},"Overtraining","Overtraining is a prolonged performance drop from excess stress without enough recovery — rarer than simple overreaching.","overtraining",{"title":597,"description":598,"slug":599,"ref":599},"PR - Personal Record","A PR (Personal Record) is your best performance ever on a movement. The fundamental progress marker.","pr-personal-record",{"title":601,"description":602,"slug":603,"ref":603},"Passive recovery","Passive recovery links on complete rest to allow the body to regenerate. Find out when and how to use it effectively.","passive-recovery",{"title":605,"description":606,"slug":607,"ref":607},"Periodization","Periodization is the cyclical organization of training into distinct phases to optimize progression, prevent plateaus, and avoid injuries.","periodization",{"title":609,"description":610,"slug":611,"ref":611},"Plateau","A plateau is a period of stagnation despite consistent training. Identifying the cause is the key to breaking it.","plateau",{"title":613,"description":614,"slug":615,"ref":615},"Post-workout","The post-workout is the nutrition right after training to optimize recovery and growth. Protein, carbs, hydration.","post-workout",{"title":617,"description":618,"slug":619,"ref":620},"Power (explosive strength)","Power is force × velocity — producing force quickly. Trained with intent, moderate loads moved fast, jumps/throws, and adequate rest.","power-training","power",{"title":622,"description":623,"slug":624,"ref":624},"Powerlifting","Powerlifting is a strength sport focused on maximal squat, bench press and deadlift — programming revolves around heavy compounds and peaking.","powerlifting",{"title":626,"description":627,"slug":628,"ref":628},"Pre-workout","The pre-workout is the meal or supplement taken before training to optimize performance. Energy, focus, and pump.","pre-workout",{"title":630,"description":631,"slug":632,"ref":632},"Progressive overload","Progressive overload is the foundational principle of training: gradually increasing the demand on your muscles to keep gaining strength and size.","progressive-overload",{"title":634,"description":635,"slug":636,"ref":636},"Protein","Protein is the essential macronutrient for building and repairing muscle. Discover your needs, the best sources and the optimal timing.","protein",{"title":638,"description":639,"slug":640,"ref":640},"Protein powder","Protein powders are concentrated protein supplements. Practical for hitting daily protein needs.","protein-powder",{"title":642,"description":643,"slug":644,"ref":644},"Push/Pull/Legs (PPL)","The Push/Pull/Legs program divides the workout into 3 types of sessions: push (chests/shoulders/triceps), pull (back/biceps) and legs. Optimal for all levels with frequency 2x/week per muscle.","push-pull-legs-ppl",{"title":646,"description":647,"slug":648,"ref":648},"RIR","RIR (Reps in Reserve) measures how many reps you have left before failure. Modern, intuitive tool to manage intensity.","rir-reps-in-reserve",{"title":650,"description":651,"slug":652,"ref":652},"RPE","RPE (Rate of Perceived Exertion) is a 1-10 scale to measure subjective effort. Essential tool for managing intensity.","rpe-rate-of-perceived-exertion",{"title":654,"description":655,"slug":656,"ref":656},"Range of motion (ROM)","Range of motion (ROM) is the amplitude through which a joint or muscle can move during an exercise. Crucial for hypertrophy and joint health.","range-of-motion-rom",{"title":658,"description":659,"slug":660,"ref":660},"Refeed","A refeed is a planned short increase in calories (often carbs) during a fat-loss phase to support training, hormones and adherence.","refeed",{"title":662,"description":663,"slug":664,"ref":664},"Repetitions (Reps)","A rep is one complete execution of an exercise. The rep range determines whether you primarily develop strength, hypertrophy, or muscular endurance.","repetitions-reps",{"title":666,"description":667,"slug":668,"ref":668},"Reps to failure (RTF)","RTF means performing reps until no clean rep remains; useful sparingly for hypertrophy, costly if overused on heavy compounds.","reps-to-failure",{"title":670,"description":671,"slug":672,"ref":672},"Rest","Rest between sets is critical and depends on the goal. Strength: 3-5 min. Hypertrophy: 1-3 min. Endurance: 30-60 sec.","rest",{"title":674,"description":675,"slug":676,"ref":676},"Rest day","A rest day is planned time off hard training so adaptation can occur; it can be full rest or very light activity.","rest-day",{"title":678,"description":679,"slug":680,"ref":680},"Rest-Pause","Rest-pause is an intensification method using ultra-short pauses to extend a set. Powerful tool for hypertrophy.","rest-pause",{"title":682,"description":683,"slug":684,"ref":684},"Sarcomere","The sarcomere is the basic contractile unit of muscle. Composed of actin and myosin, it produces all your movements.","sarcomere",{"title":686,"description":687,"slug":688,"ref":688},"Series (Sets)","A series (or set) is a group of consecutive reps without rest. The basic unit of training programming.","series-sets",{"title":690,"description":691,"slug":692,"ref":692},"Sleep","Sleep is the most underrated training variable. It's during sleep that recovery, muscle building, and hormonal regulation happen.","sleep",{"title":694,"description":695,"slug":696,"ref":696},"Split (Split program)","A split workout involves dividing muscle groups over different days. The classic split trains each muscle once a week for 5-6 days.","split-split-program",{"title":698,"description":699,"slug":700,"ref":700},"Strength Training","Strength training aims to develop maximal strength using heavy loads (80-95% of 1RM) with few repetitions (1-6 reps).","strength-training",{"title":702,"description":703,"slug":704,"ref":704},"Stretching","Stretching improves flexibility and range of motion. Learn about the different types and how to effectively incorporate them into your routine.","stretching",{"title":706,"description":707,"slug":708,"ref":708},"Superset","A superset chains two exercises with no rest between them. Time-efficient method that boosts intensity and density.","superset",{"title":710,"description":711,"slug":712,"ref":712},"TDEE","TDEE (Total Daily Energy Expenditure) represents your total daily energy expenditure. Find out how to calculate it precisely to optimize your results.","tdee",{"title":714,"description":715,"slug":716,"ref":716},"TUT - Time Under Tension","TUT (Time Under Tension) measures the total time the muscle is under load during a set. Key variable for hypertrophy.","tut-time-under-tension",{"title":718,"description":719,"slug":720,"ref":720},"Tabata","Tabata is a 4-minute HIIT protocol: 20 seconds max effort, 10 seconds rest, 8 rounds. Maximum efficiency in minimum time.","tabata",{"title":722,"description":723,"slug":724,"ref":724},"Tempo - Execution speed","Tempo is the controlled speed of each phase of a movement. Powerful tool to maximize stimulus and control.","tempo-execution-speed",{"title":726,"description":727,"slug":728,"ref":728},"Training density","Training density measures the amount of work done per unit of time. Increase it to boost intensity and metabolic stress.","training-density",{"title":730,"description":731,"slug":732,"ref":732},"Training frequency","Training frequency defines how many times per week you work a muscle. Discover the optimal frequency to progress.","training-frequency",{"title":734,"description":735,"slug":736,"ref":736},"Training intensity","Bodybuilding intensity measures the difficulty of the effort. Find out how to calculate it with % of 1RM, RPE, and RIR.","training-intensity",{"title":738,"description":739,"slug":740,"ref":740},"Training volume","Training volume represents the total amount of work performed. Discover the optimal volumes per muscle per week to progress.","training-volume",{"title":742,"description":743,"slug":744,"ref":744},"Type I muscle fibers","Type I fibers (slow-twitch) are endurance-oriented muscle fibers. Resistant to fatigue, they sustain prolonged efforts.","muscle-fibers-type-i",{"title":746,"description":747,"slug":748,"ref":748},"Type II muscle fibers","Type II fibers (fast-twitch) are powerful muscle fibers optimized for explosive efforts. Essential for strength and power.","type-ii-muscle-fibers",{"title":750,"description":751,"slug":752,"ref":752},"Undulating periodization","Undulating periodization varies volume and intensity frequently (daily or weekly) instead of long linear phases.","undulating-periodization",{"title":754,"description":755,"slug":756,"ref":756},"Upper/Lower","The Upper/Lower program divides training into upper body and lower body sessions over 4 days per week. Perfect balance between frequency (2x/week) and volume for all levels.","upper-lower",{"title":758,"description":759,"slug":760,"ref":760},"VO2 max","VO2 max is the maximum amount of oxygen your body can use during intense exercise. It's the gold standard of cardiovascular fitness.","vo2-max",{"title":762,"description":763,"slug":764,"ref":764},"Warm-up","A warm-up raises temperature, primes the nervous system and rehearses the session patterns before hard sets.","warm-up",{"title":766,"description":767,"slug":768,"ref":768},"Whey protein","Whey is a fast-digesting dairy protein powder, rich in leucine — a convenient way to hit daily protein targets.","whey-protein",{"title":770,"description":771,"slug":772,"ref":772},"Zone 2","Zone 2 is a moderate aerobic intensity (often ~60–70% HRmax) where you can talk in full sentences — foundation of endurance base.","zone-2",{"de":774,"en":13,"es":775,"fr":13,"it":776,"pt":776},"atp-adenosintriphosphat","atp-adenosin-trifosfato","atp-adenosina-trifosfato",1785169292814]