Elderly resistance training

老年抗阻训练

Place · Level 3

Fiatarone 1994 NEJM: 87 岁衰弱老人 10 周高强度 PRT, 膝伸力量 +174% · 老了练不动是误区

Connected to · 2

synergy · 2

Vitamin D
Bischoff-Ferrari 2019: RT + adequate vitamin D doubles strength gains vs RT alone. VDR is expressed in skeletal muscle and modulates protein synthesis.
Bone
Elderly RT triggers muscle-pull mechanostat → bone remodeling → BMD ↑. Liu 2009 Cochrane: high-intensity RT in 90+ reverses sarcopenia + improves bone markers.

Fiatarone 1994 — frailty is trainable

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Fiatarone 1994 · 虚弱可逆

*Fiatarone 1994* *NEJM* is the single most important turning point for resistance training in the very old. The subjects were not healthy seniors — they were frail nursing-home residents with a mean age of 87, multiple chronic diseases, and a history of falls. They were randomized to high-intensity progressive resistance training, nutritional supplementation, the combined intervention, or control. The training group did lower-body work at 80% of 1RM, three sessions per week for 10 weeks.

The results were counter-intuitive: knee extension strength rose by 174%, vs only 9% in controls; stair-climbing power rose by 28%; walking speed rose by 12%, reaching 48% in the frailest subgroup. MRI showed thigh muscle cross-sectional area also increased — this was not just "getting used to the machine", but real neural recruitment and structural muscular adaptation.

The value of this study is not that every elderly person should copy 80% 1RM, but that it nails one statement to the wall: frailty is not destiny — when stimulus dose is high enough and supervision is real, even muscles in the 90s still respond to training. Subsequent Cochrane reviews have replicated the direction: progressive resistance training improves strength, gait speed, sit-to-stand, and stair-climbing in older adults.

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Educational content, not medical advice — consult a clinician.

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