02-016 · EVIDENCE A · SOURCE-SENSITIVE
30–60 minutes of strength training per week
每周做 30–60 分钟力量训练
Doing bodyweight squats and push-ups costs nothing. Aim for 1–2 sessions per week, each lasting 20–30 minutes. The real challenge is fitting this into your weekly schedule.
People who engage in 30–60 minutes of strength training each week have a 10–20% lower risk of dying during that period compared to those who don’t train at all. Training beyond this amount won’t bring any extra benefit. Combining strength training with aerobic exercise yields the best results.
A
Move “30–60 minutes of strength training per week” to Future Me's calendar
The excuse
There is no immediate alarm, so the sensible choice can wait for a less busy week.
What feels good now
Today I keep a few minutes, a bit of persistence and avoid interrupting my default routine.
What the source says
The source summarizes the return this way: “People who engage in 30–60 minutes of strength training each week have a 10–20% lower risk of dying during that period compared to those who don’t train at all. Training beyond this amount won’t bring any extra benefit. Combining strength training with aerobic exercise yields the best results.” Evidence grade A. The original states the population, caveats, and sources; this is not a personal forecast.
Use the original facts and limits. For an urgent medical, safety, financial, or legal issue, contact a qualified local professional or service.
THE ENGLISH EDITION
Original recommendation and evidence
16. 30–60 minutes of strength training per week
Cost: Doing bodyweight squats and push-ups costs nothing. Aim for 1–2 sessions per week, each lasting 20–30 minutes. The real challenge is fitting this into your weekly schedule.
In plain terms: People who engage in 30–60 minutes of strength training each week have a 10–20% lower risk of dying during that period compared to those who don’t train at all. Training beyond this amount won’t bring any extra benefit. Combining strength training with aerobic exercise yields the best results.
Benefit: When multiple observational studies are pooled together (without subgroup analysis), individuals who perform strength training show a 10%–17% reduction in mortality risk relative to non‑trainers. This benefit peaks at roughly 30–60 minutes of weekly training, delivering a 10%–20% risk drop; more training does not further improve outcomes. Those who also do aerobic exercise enjoy an even lower mortality risk than those who do neither type of exercise.
Evidence grade: A
Sources: Momma H et al. (2022). Muscle-strengthening activities are associated with lower risk and mortality in major non-communicable diseases: a systematic review and meta-analysis of cohort studies. British Journal of Sports Medicine. <https://doi.org/10.1136/bjsports-2021-105061>
Notes: These studies rely on follow‑up tracking, with participants self‑reporting their activity levels. The evidence supporting the notion that “excessive training can be detrimental” is quite weak, so there’s no need to cap training volume for that reason. For older adults, strength training also helps prevent falls and preserve muscle mass; those benefits are discussed in Section 1.
Read the complete Chinese source and notes
16. 每周做 30–60 分钟力量训练
成本: 徒手深蹲、俯卧撑不花钱。每周练 1–2 次，每次 20–30 分钟。难在要把它排进每周的日程里。
说人话: 每周练 30–60 分钟力量的人，同期死亡的概率比不练的人低一到两成。再多练不会更好。力量和有氧一起做效果最好。
收益: 把多项跟踪研究合起来算（只记录、不分组）：做力量训练的人比不做的人，死亡风险低 10%–17%。不是练得越多越好，每周约 30–60 分钟时降幅最大，约 10%–20%，再多练不会多出好处。力量和有氧都做的人，比两样都不做的人死亡风险更低。
证据等级: A
来源: Momma H 等 (2022). Muscle-strengthening activities are associated with lower risk and mortality in major non-communicable diseases: a systematic review and meta-analysis of cohort studies. British Journal of Sports Medicine. <https://doi.org/10.1136/bjsports-2021-105061>
备注: 这类研究只是跟踪记录，运动量还是参与者自己报的。「练过头反而变差」那一段的证据很弱，不必为此限制训练量。力量训练对老年人还有防跌倒、保住肌肉的好处，那些写在第 1 节。
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