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Resistance training basics
渐进超负荷 · 2-3 次/周 · 5 个复合动作 — 教科书入门, 90% 收益从这里来
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Chapter 1
Progressive overload
Progressive overload
The single ultimate principle of strength training: the body only adapts to stimulus harder than its current level. So every week or every two weeks, one training parameter must get harder for continued progress.
4 adjustable parameters (in order of controllability):
1. Load: same exercise + same reps + 2.5–5 kg more weight
2. Reps: same exercise + same load + 1–2 more reps
3. Volume: 1 more set per week
4. Exercise difficulty: e.g. push-up → band-resisted bench press → barbell bench press
The trap is not trying to increase all four at once — recovery can't keep up. Changing one variable per week is enough, which is why strength programs are typically built on weekly-linear or 4-week-block schemes.
4 adjustable parameters (in order of controllability):
1. Load: same exercise + same reps + 2.5–5 kg more weight
2. Reps: same exercise + same load + 1–2 more reps
3. Volume: 1 more set per week
4. Exercise difficulty: e.g. push-up → band-resisted bench press → barbell bench press
The trap is not trying to increase all four at once — recovery can't keep up. Changing one variable per week is enough, which is why strength programs are typically built on weekly-linear or 4-week-block schemes.
Chapter 2
The five compound lifts
The five compound lifts
Five compound lifts cover about 90% of training value, because they recruit multi-joint, multi-muscle movements with high workload:
Squat: legs, glutes, coreDeadlift: entire posterior chain plus gripBench press: chest, anterior deltoid, tricepsRow: lats, rear deltoid, bicepsOverhead press: deltoids, triceps, core
Beginner 3-month program: 3 of these per session, 3 sets × 5–8 reps, 3 sessions/week. No isolation work needed, no split needed — entry is this simple.
Why not 'a full-body circuit of 24 exercises'? Training efficiency = effective volume / time. One set of a compound lift gives roughly the same stimulus as 3 sets of an isolation exercise, while saving 60% of the time.
Squat: legs, glutes, coreDeadlift: entire posterior chain plus gripBench press: chest, anterior deltoid, tricepsRow: lats, rear deltoid, bicepsOverhead press: deltoids, triceps, core
Beginner 3-month program: 3 of these per session, 3 sets × 5–8 reps, 3 sessions/week. No isolation work needed, no split needed — entry is this simple.
Why not 'a full-body circuit of 24 exercises'? Training efficiency = effective volume / time. One set of a compound lift gives roughly the same stimulus as 3 sets of an isolation exercise, while saving 60% of the time.
Frequency vs volume
Schoenfeld 2016 meta-analysis (with total volume held constant):Frequency 2×/week vs 1×/week: +3.1% hypertrophy (moderately significant)Frequency 3×/week vs 2×/week: not significant
Implication: splitting 12 sets/week across 2 days (6 sets each) is slightly better than 12 sets in one day, but the gap is much smaller than the 12 vs 6 sets/week difference.
So 'should each muscle be trained 1× or 3× per week' is a second-order question — what mostly matters is total volume and RIR (reps in reserve).
In beginner practice: 3 days/week full-body, 3 sets per exercise. That nicely covers 6–9 sets/muscle/week, recovers better than a split, and is higher-frequency than 1×/week.
Chapter 3
Compound vs isolation
Compound vs isolation
Compound movements cross two or more joints and recruit several major muscle groups at once; isolation movements move a single joint and mainly stimulate one muscle. Getting the priority of these two straight early saves a beginner a lot of wasted training time.
Why compounds are the foundation:
Training-volume efficiency: one set of squats already stimulates 6+ major muscles (quads, glutes, core), more time-efficient than six separate isolation exercisesSquat / press / pull / hinge / lunge are the fundamental movement patterns of daily life — training them carries overCompounds allow sustained progressive overload, whereas isolation micro-loading plateaus easilySchoenfeld 2017 RCT equated total training volume between a compound-dominant and an isolation-dominant group: no significant hypertrophy difference, but the compound group was clearly ahead on strength
Isolation isn't useless — it's fine-tuning, not the main course. Where it genuinely earns a place: fixing a weak link (e.g. a bench-press lockout sticking point flags weak triceps, so add a triceps extension); covering muscles compounds undertrain (biceps, lateral delts, calves, forearms); single-muscle sculpting for aesthetic or bodybuilding goals; rehab or correcting a one-sided imbalance.
Why compounds are the foundation:
Training-volume efficiency: one set of squats already stimulates 6+ major muscles (quads, glutes, core), more time-efficient than six separate isolation exercisesSquat / press / pull / hinge / lunge are the fundamental movement patterns of daily life — training them carries overCompounds allow sustained progressive overload, whereas isolation micro-loading plateaus easilySchoenfeld 2017 RCT equated total training volume between a compound-dominant and an isolation-dominant group: no significant hypertrophy difference, but the compound group was clearly ahead on strength
Isolation isn't useless — it's fine-tuning, not the main course. Where it genuinely earns a place: fixing a weak link (e.g. a bench-press lockout sticking point flags weak triceps, so add a triceps extension); covering muscles compounds undertrain (biceps, lateral delts, calves, forearms); single-muscle sculpting for aesthetic or bodybuilding goals; rehab or correcting a one-sided imbalance.
Compound / isolation time split
Allocating compound vs isolation time by training goal looks roughly like this:Strength-first (powerlifting): compound 80% / isolation 20%Hypertrophy-first (bodybuilding): compound 60% / isolation 40%Novice (first 1-2 years): compound 90% / isolation 10%
A simple rule for novices: spend the first 60-80% of a session on the five compound lifts, then add 1-2 isolation pieces (weak link or aesthetics) in the remaining 20-40%. Filling an entire program with 12 isolation exercises from the start hurts both time efficiency and visible progress.
One point marketing often exploits: 'doing a certain isolation exercise to lose fat in that spot' (sit-ups to lose belly fat) doesn't hold up — fat is mobilized systemically and won't drop locally just because you trained the adjacent muscle. The full debunk lives on the myth-busting island.
Chapter 4
Rest + rep ranges
Rest + rep ranges
Rep ranges map to training goals, but the overlap is large:
A key Schoenfeld 2017 finding: when sets are taken close to failure, hypertrophy stimulus is the same across the 6–20 rep range. So '8–12 reps for hypertrophy' is rough guidance, not a strict rule.
Rest can't be too short: under 90 seconds your weight drops too much on sets 2–3, lowering total effective volume. adenosine triphosphate: The cell's universal energy currency — almost everything that costs energy spends it.-PCr resynthesis takes about 3 minutes.
Beginner default: compound lifts at 8–10 reps with 2–3 min rest, 3 sets — simple and direct.
| Goal | Reps | Intensity | Rest |
|---|---|---|---|
| Maximal strength | 1–5 | 85–100% 1RM | 3–5 min |
| Hypertrophy | 6–12 | 65–85% | 2–3 min |
| Muscular endurance | 15–20+ | < 65% | 1–2 min |
A key Schoenfeld 2017 finding: when sets are taken close to failure, hypertrophy stimulus is the same across the 6–20 rep range. So '8–12 reps for hypertrophy' is rough guidance, not a strict rule.
Rest can't be too short: under 90 seconds your weight drops too much on sets 2–3, lowering total effective volume. adenosine triphosphate: The cell's universal energy currency — almost everything that costs energy spends it.-PCr resynthesis takes about 3 minutes.
Beginner default: compound lifts at 8–10 reps with 2–3 min rest, 3 sets — simple and direct.
Chapter 5
Volume & frequency
Volume & frequency
The most-asked training question is 'how many times a week should I train?' Walk through the evidence one piece at a time and the answer is: volume determines hypertrophy, frequency only determines how you distribute that volume.
The Schoenfeld 2016 frequency meta (10 RCTs) found that with total volume held constant, training a muscle 2-3× per week is equivalent to 1× per week for hypertrophy. Volume is the cause; frequency is just the distribution method.
The Schoenfeld 2017 volume meta (15 RCTs) gives a clear dose-response:
Under 10 sets per week per muscle: still in the rising zone10-20 sets: the main hypertrophy range, the golden zoneOver 20 sets: plateau and diminishing returns, with rising riskOver 30 sets: the excess is junk volume — fatigue exceeds stimulus
So once volume is fixed, 'chest 12 sets/week' equals one session of 12 sets, two sessions of 6, or three of 4. Beginners or time-constrained people: full-body 2-3×/week, 6-10 sets per muscle per session, accumulating 12-20 sets — that's plenty. Advanced or time-rich people: a push-pull-legs split 6×/week spreads the same total thinner. The 'optimal frequency' framing is closer to marketing; the real answer is always 'depends on your volume target and time budget'.
The Schoenfeld 2016 frequency meta (10 RCTs) found that with total volume held constant, training a muscle 2-3× per week is equivalent to 1× per week for hypertrophy. Volume is the cause; frequency is just the distribution method.
The Schoenfeld 2017 volume meta (15 RCTs) gives a clear dose-response:
Under 10 sets per week per muscle: still in the rising zone10-20 sets: the main hypertrophy range, the golden zoneOver 20 sets: plateau and diminishing returns, with rising riskOver 30 sets: the excess is junk volume — fatigue exceeds stimulus
So once volume is fixed, 'chest 12 sets/week' equals one session of 12 sets, two sessions of 6, or three of 4. Beginners or time-constrained people: full-body 2-3×/week, 6-10 sets per muscle per session, accumulating 12-20 sets — that's plenty. Advanced or time-rich people: a push-pull-legs split 6×/week spreads the same total thinner. The 'optimal frequency' framing is closer to marketing; the real answer is always 'depends on your volume target and time budget'.
Overtraining vs overreaching
The word 'overtraining' gets overused. Pathological overtraining is extremely rare in ordinary recreational trainees — it requires months of sustained high volume layered on top of both nutritional and sleep deficits. Most self-diagnosed 'overtraining' is actually 'overreaching' — short-term accumulated fatigue that rebounds after 1-2 weeks of reduced load.Two states to distinguish:
Functional overreaching (FOR): after 4-8 weeks of high volume, strength drops short-term, then rebounds with supercompensation after a week of reduced load — a normal part of training cyclesPathological overtraining: continuing to escalate after FOR without deloading, producing chronic fatigue, poor sleep, low mood, and a sustained strength decline that takes weeks to months to recover from — rare but serious
A few signals: subjective fatigue ≥8/10 for three straight days means deload that day; the same lift at the same weight not progressing for two weeks means deload; marked irritability + insomnia + lost appetite for over a week suggests real overtraining — see a coach or clinician. Beginners deload roughly every 8-12 weeks, advanced lifters every 4-6.
Chapter 6
First 3 months
First 3 months
The plainest entry-level program (3 days/week, full body, 12 weeks):
Day A: squat 3×8, bench 3×8, row 3×8Day B: deadlift 3×5, overhead press 3×8, pull-up 3×AMRAP
Schedule: A-rest-B-rest-A-rest-rest; next week flip to B-rest-A-rest-B-rest-rest.
Progression rule: each week, if all sets from the previous session were completed (RIR ≥ 1), add 2.5 kg (upper body) or 5 kg (lower body) on the main lifts. If a week didn't complete, don't add weight — repeat the week.
What happens after 12 weeks:
Neural-drive adaptation complete, strength up 50–100%Hypertrophy starts, body composition change becomes visibleA reasonable time to switch to a slightly more complex program (upper/lower split, or adding isolation work)
Don't switch too often — give a program 8–12+ weeks of patience. 'Muscle confusion' is marketing, not science — see the debunk in hypertrophy-mechanism.
Day A: squat 3×8, bench 3×8, row 3×8Day B: deadlift 3×5, overhead press 3×8, pull-up 3×AMRAP
Schedule: A-rest-B-rest-A-rest-rest; next week flip to B-rest-A-rest-B-rest-rest.
Progression rule: each week, if all sets from the previous session were completed (RIR ≥ 1), add 2.5 kg (upper body) or 5 kg (lower body) on the main lifts. If a week didn't complete, don't add weight — repeat the week.
What happens after 12 weeks:
Neural-drive adaptation complete, strength up 50–100%Hypertrophy starts, body composition change becomes visibleA reasonable time to switch to a slightly more complex program (upper/lower split, or adding isolation work)
Don't switch too often — give a program 8–12+ weeks of patience. 'Muscle confusion' is marketing, not science — see the debunk in hypertrophy-mechanism.