[{"data":1,"prerenderedAt":672},["ShallowReactive",2],{"lexique-en-isometric-contraction":3,"lexique-all-en":312,"lexique-trans-en-isometric-contraction":666},{"id":4,"title":5,"body":6,"description":301,"extension":302,"lang":303,"letter":304,"meta":305,"navigation":306,"path":307,"ref":308,"seo":309,"stem":310,"__hash__":311},"lexique/lexique/en/isometric-contraction.md","Isometric",{"type":7,"value":8,"toc":289},"minimark",[9,13,18,31,34,37,40,45,90,92,96,137,139,143,181,183,187,214,216,220,252,254,258,272,274,278],[10,11,5],"h1",{"id":12},"isometric",[14,15,17],"h4",{"id":16},"definition","Definition",[19,20,21,22,26,27,30],"p",{},"An ",[23,24,25],"strong",{},"isometric contraction"," is when a muscle ",[23,28,29],{},"produces force without changing length",". The joint angle stays fixed, but the muscle is intensely active. Examples: plank, wall sit, dead hang.",[32,33],"blockquote",{},[19,35,36],{},"💡 The 3 types of muscle contraction: concentric (shortening), eccentric (lengthening), isometric (no length change).",[38,39],"hr",{},[41,42,44],"h3",{"id":43},"the-2-types-of-isometric","The 2 types of isometric",[46,47,48,64],"table",{},[49,50,51],"thead",{},[52,53,54,58,61],"tr",{},[55,56,57],"th",{},"Type",[55,59,60],{},"Description",[55,62,63],{},"Example",[65,66,67,79],"tbody",{},[52,68,69,73,76],{},[70,71,72],"td",{},"Yielding isometric",[70,74,75],{},"Holding a load against gravity",[70,77,78],{},"Holding the bottom of a squat with a barbell",[52,80,81,84,87],{},[70,82,83],{},"Overcoming isometric",[70,85,86],{},"Pushing against an immovable resistance",[70,88,89],{},"Pushing against a wall, immovable bar",[38,91],{},[41,93,95],{"id":94},"benefits-of-isometrics","Benefits of isometrics",[97,98,99,107,113,119,125,131],"ul",{},[100,101,102,103,106],"li",{},"✅ ",[23,104,105],{},"Strength at a specific angle",": very strong gain at the trained angle",[100,108,102,109,112],{},[23,110,111],{},"Joint stability",": reinforces tendons and ligaments",[100,114,102,115,118],{},[23,116,117],{},"Mind-muscle connection",": feel the muscle better",[100,120,102,121,124],{},[23,122,123],{},"Injury rehab",": works strength without joint stress",[100,126,102,127,130],{},[23,128,129],{},"Time efficiency",": 10-30 sec/exercise enough",[100,132,102,133,136],{},[23,134,135],{},"No equipment needed",": can do anywhere",[38,138],{},[41,140,142],{"id":141},"best-isometric-exercises","Best isometric exercises",[97,144,145,151,157,163,169,175],{},[100,146,147,150],{},[23,148,149],{},"Plank",": core, shoulders, glutes",[100,152,153,156],{},[23,154,155],{},"Wall sit",": quads, glutes",[100,158,159,162],{},[23,160,161],{},"Dead hang",": forearms, lats, grip",[100,164,165,168],{},[23,166,167],{},"L-sit",": abs, hip flexors, triceps",[100,170,171,174],{},[23,172,173],{},"Barbell hold",": maximum holds at lockout",[100,176,177,180],{},[23,178,179],{},"Hollow body hold",": deep core",[38,182],{},[41,184,186],{"id":185},"limits-of-isometrics","Limits of isometrics",[97,188,189,196,202,208],{},[100,190,191,192,195],{},"❌ ",[23,193,194],{},"Specific to the trained angle",": gains transfer little to other angles",[100,197,191,198,201],{},[23,199,200],{},"Limited hypertrophy",": lower than dynamic work",[100,203,191,204,207],{},[23,205,206],{},"Lacks variety",": should not replace dynamic training",[100,209,191,210,213],{},[23,211,212],{},"Hold breath",": dangerous risk if you hold breath under load (Valsalva)",[38,215],{},[41,217,219],{"id":218},"how-to-use-isometrics-in-your-program","How to use isometrics in your program",[97,221,222,228,234,240,246],{},[100,223,102,224,227],{},[23,225,226],{},"As warm-up",": muscle activation before lifts",[100,229,102,230,233],{},[23,231,232],{},"As accessories",": 1-2 sets of 10-30 sec at end of session",[100,235,102,236,239],{},[23,237,238],{},"For weak points",": hold at the angle where you're weakest",[100,241,102,242,245],{},[23,243,244],{},"For rehab",": low joint stress",[100,247,102,248,251],{},[23,249,250],{},"For abs and core",": planks etc. as base work",[38,253],{},[41,255,257],{"id":256},"common-mistakes","Common mistakes",[97,259,260,263,266,269],{},[100,261,262],{},"❌ Holding breath during the entire effort (cardiovascular risk)",[100,264,265],{},"❌ Replacing all dynamic training with isometrics",[100,267,268],{},"❌ Holding too long (poor technique = ineffective)",[100,270,271],{},"❌ Not progressing in load or duration",[38,273],{},[41,275,277],{"id":276},"key-takeaways","Key takeaways",[19,279,280,281,284,285,288],{},"Isometrics are ",[23,282,283],{},"a powerful complement to dynamic training",". Use them for stability, weak points, rehab, time efficiency. ",[23,286,287],{},"Isometric ≠ replacement for dynamic work, but a smart addition",".",{"title":290,"searchDepth":291,"depth":291,"links":292},"",2,[293,295,296,297,298,299,300],{"id":43,"depth":294,"text":44},3,{"id":94,"depth":294,"text":95},{"id":141,"depth":294,"text":142},{"id":185,"depth":294,"text":186},{"id":218,"depth":294,"text":219},{"id":256,"depth":294,"text":257},{"id":276,"depth":294,"text":277},"Isometric contraction is when the muscle produces tension without changing length. No visible movement, intense work.","md","en","I",{},true,"/lexique/en/isometric-contraction","isometric-contraction",{"title":5,"description":301},"lexique/en/isometric-contraction","hBfydD8N44OG4M9HUAMYqVkIsNTpVxWm3JK7_zKJ7aE",[313,317,321,325,329,333,337,341,345,349,353,357,361,365,369,373,377,381,385,389,393,397,401,405,409,413,417,421,425,429,433,437,441,445,449,453,457,461,465,466,470,474,478,482,486,490,494,498,502,506,510,514,518,522,526,530,534,538,542,546,550,554,558,562,566,570,574,578,582,586,590,594,598,602,606,610,614,618,622,626,630,634,638,642,646,650,654,658,662],{"title":314,"description":315,"slug":316},"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":318,"description":319,"slug":320},"ATP (Adenosine Triphosphate)","ATP is the universal energy currency of the body. Every muscle contraction, every cellular function depends on it.","atp-adenosine-triphosphate",{"title":322,"description":323,"slug":324},"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":326,"description":327,"slug":328},"Active recovery","Active recovery uses light activity to speed muscle recovery. Find out how to effectively integrate it into your routine.","active-recovery",{"title":330,"description":331,"slug":332},"Adduction","Adduction is a movement that brings a body part toward the body's midline. Opposite of abduction.","adduction",{"title":334,"description":335,"slug":336},"Aerobic System","The aerobic system produces energy with oxygen, fueling long-duration efforts. It's the foundation of endurance and recovery.","aerobic-system",{"title":338,"description":339,"slug":340},"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":342,"description":343,"slug":344},"Anaerobic System","The anaerobic system produces energy without oxygen — for explosive, intense efforts. Limited but powerful, it fuels strength and sprints.","anaerobic-system",{"title":346,"description":347,"slug":348},"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":350,"description":351,"slug":352},"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":354,"description":355,"slug":356},"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":358,"description":359,"slug":360},"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":362,"description":363,"slug":364},"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":366,"description":367,"slug":368},"Bodyweight","Bodyweight training uses your own body as resistance. No equipment, anywhere, scalable to any level.","bodyweight",{"title":370,"description":371,"slug":372},"Calorie Maintenance","Caloric maintenance is the calorie level keeping your weight stable. Foundation of any nutritional plan.","calorie-maintenance",{"title":374,"description":375,"slug":376},"Calorie Surplus","A caloric surplus means consuming more calories than you burn. Mandatory mechanism for serious muscle building.","calorie-surplus",{"title":378,"description":379,"slug":380},"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":382,"description":383,"slug":384},"Calories","Calories measure the energy provided by food. Understanding your caloric needs is the foundation of every fitness goal.","calories",{"title":386,"description":387,"slug":388},"Carbohydrates","Carbohydrates are the main source of energy for intense training. Discover your needs, the different types and their role in performance.","carbohydrates",{"title":390,"description":391,"slug":392},"Circuit training","Circuit training chains several exercises with little rest. Ideal for burning calories and improving cardiovascular fitness while keeping muscle.","circuit-training",{"title":394,"description":395,"slug":396},"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":398,"description":399,"slug":400},"Creatine","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":402,"description":403,"slug":404},"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":406,"description":407,"slug":408},"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":410,"description":411,"slug":412},"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":414,"description":415,"slug":416},"Dropset","A dropset extends a set by reducing the load when failure hits. Powerful intensification method for hypertrophy.","dropset",{"title":418,"description":419,"slug":420},"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":422,"description":423,"slug":424},"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":426,"description":427,"slug":428},"Extension","Extension is the anatomical movement that increases the angle between two body segments. Opposite of flexion.","extension",{"title":430,"description":431,"slug":432},"Fat mass","Fat mass is the total weight of fat tissue. Essential for survival, but excess harms health and aesthetics.","fat-mass",{"title":434,"description":435,"slug":436},"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":438,"description":439,"slug":440},"Flexion","Flexion is the anatomical movement that decreases the angle between two body segments. Opposite of extension.","flexion",{"title":442,"description":443,"slug":444},"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":446,"description":447,"slug":448},"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":450,"description":451,"slug":452},"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":454,"description":455,"slug":456},"Hypertrophy","Muscle hypertrophy is the increase in muscle fiber size. It's the primary mechanism behind muscle growth from resistance training.","hypertrophy",{"title":458,"description":459,"slug":460},"Hypertrophy Training","Hypertrophy training aims to maximize muscle growth using moderate loads (65-85% 1RM) with 8-15 repetitions per set.","hypertrophy-training",{"title":462,"description":463,"slug":464},"Intra-workout","Intra-workout refers to nutrition consumed during training to maintain energy, hydration and performance on long sessions.","intra-workout",{"title":5,"description":301,"slug":308},{"title":467,"description":468,"slug":469},"Lean mass","Lean mass is everything in your body except fat: muscles, bones, organs, water. A real performance indicator.","lean-mass",{"title":471,"description":472,"slug":473},"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":475,"description":476,"slug":477},"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":479,"description":480,"slug":481},"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":483,"description":484,"slug":485},"Maintenance","Maintenance is the calorie level at which your weight remains stable. The neutral baseline for any nutritional strategy.","maintenance",{"title":487,"description":488,"slug":489},"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":491,"description":492,"slug":493},"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":495,"description":496,"slug":497},"Mesocycle","A mesocycle is a 4-8 week training block with a specific objective (hypertrophy, strength, peak, deload). The cornerstone of periodization.","mesocycle",{"title":499,"description":500,"slug":501},"Microcycle","A microcycle is the smallest planning unit in bodybuilding: generally 1 week of training. This is your weekly routine.","microcycle",{"title":503,"description":504,"slug":505},"Mobility","Mobility is the ability to actively control range of motion. Find out how to improve your mobility to optimize your performance.","mobility",{"title":507,"description":508,"slug":509},"Muscle mass","Muscle mass is the total weight of muscles in the body. Key indicator of strength, metabolism, and longevity.","muscle-mass",{"title":511,"description":512,"slug":513},"Muscular Endurance Training","Muscular endurance training develops the ability to sustain prolonged effort. Light loads, high reps, short rests.","muscular-endurance-training",{"title":515,"description":516,"slug":517},"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":519,"description":520,"slug":521},"Muscular strength","Muscular strength is the maximum force a muscle (or group) can produce. The fundamental physical quality of any athlete.","muscular-strength",{"title":523,"description":524,"slug":525},"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":527,"description":528,"slug":529},"PR - Personal Record","A PR (Personal Record) is your best performance ever on a movement. The fundamental progress marker.","pr-personal-record",{"title":531,"description":532,"slug":533},"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":535,"description":536,"slug":537},"Periodization","Periodization is the cyclical organization of training into distinct phases to optimize progression, prevent plateaus, and avoid injuries.","periodization",{"title":539,"description":540,"slug":541},"Plateau","A plateau is a period of stagnation despite consistent training. Identifying the cause is the key to breaking it.","plateau",{"title":543,"description":544,"slug":545},"Post-workout","The post-workout is the nutrition right after training to optimize recovery and growth. Protein, carbs, hydration.","post-workout",{"title":547,"description":548,"slug":549},"Pre-workout","The pre-workout is the meal or supplement taken before training to optimize performance. Energy, focus, and pump.","pre-workout",{"title":551,"description":552,"slug":553},"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":555,"description":556,"slug":557},"Protein","Protein is the essential macronutrient for building and repairing muscle. Discover your needs, the best sources and the optimal timing.","protein",{"title":559,"description":560,"slug":561},"Protein powder","Protein powders are concentrated protein supplements. Practical for hitting daily protein needs.","protein-powder",{"title":563,"description":564,"slug":565},"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":567,"description":568,"slug":569},"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":571,"description":572,"slug":573},"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":575,"description":576,"slug":577},"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":579,"description":580,"slug":581},"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":583,"description":584,"slug":585},"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":587,"description":588,"slug":589},"Rest-Pause","Rest-pause is an intensification method using ultra-short pauses to extend a set. Powerful tool for hypertrophy.","rest-pause",{"title":591,"description":592,"slug":593},"Sarcomere","The sarcomere is the basic contractile unit of muscle. Composed of actin and myosin, it produces all your movements.","sarcomere",{"title":595,"description":596,"slug":597},"Series (Sets)","A series (or set) is a group of consecutive reps without rest. The basic unit of training programming.","series-sets",{"title":599,"description":600,"slug":601},"Sleep","Sleep is the most underrated training variable. It's during sleep that recovery, muscle building, and hormonal regulation happen.","sleep",{"title":603,"description":604,"slug":605},"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":607,"description":608,"slug":609},"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":611,"description":612,"slug":613},"Stretching","Stretching improves flexibility and range of motion. Learn about the different types and how to effectively incorporate them into your routine.","stretching",{"title":615,"description":616,"slug":617},"Superset","A superset chains two exercises with no rest between them. Time-efficient method that boosts intensity and density.","superset",{"title":619,"description":620,"slug":621},"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":623,"description":624,"slug":625},"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":627,"description":628,"slug":629},"Tabata","Tabata is a 4-minute HIIT protocol: 20 seconds max effort, 10 seconds rest, 8 rounds. Maximum efficiency in minimum time.","tabata",{"title":631,"description":632,"slug":633},"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":635,"description":636,"slug":637},"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":639,"description":640,"slug":641},"Training frequency","Training frequency defines how many times per week you work a muscle. Discover the optimal frequency to progress.","training-frequency",{"title":643,"description":644,"slug":645},"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":647,"description":648,"slug":649},"Training volume","Training volume represents the total amount of work performed. Discover the optimal volumes per muscle per week to progress.","training-volume",{"title":651,"description":652,"slug":653},"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":655,"description":656,"slug":657},"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":659,"description":660,"slug":661},"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":663,"description":664,"slug":665},"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",{"de":667,"en":308,"es":668,"fr":669,"it":670,"pt":671},"isometrisch","isometrico","isometrique","isometria","isometrica",1784214982335]