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The levels of insulin-like growth factor-1 (IGF-1), muscle strength and functional autonomy tend to decrease with age. The objective of this study was to evaluate the effects of kinesiotherapy on IGF-1 levels, muscle strength and functional autonomy in older women with musculoskeletal dysfunction. A sample of 52 women was randomly divided into two groups: an experimental group (age: 68.52 ± 4.68 years, BMI: 28.05 ± 20.83) submitted to 12 weeks of exercise, and a control group (age: 67.52 ± 7.34 years; BMI: 26.96 ± 4.01). Serum IGF-1 levels were measured by a chemiluminescence method. Muscle strength was evaluated by one-repetition maximum (1-RM) testing of hip flexion (HF) and extension (HE) and shoulder flexion (SF) and extension (SE). The GDLAM protocol was used for the evaluation of functional autonomy. Repeated measures ANOVA showed an increase in IGF-1 levels after kinesiotherapy in the experimental group (Δ = 19.74 ng/ml, p = 0.028). In the experimental group, muscle strength for shoulder flexion  (ΔSF = 1.26 kg, p = 0.001) and extension exercise (ΔSE = 1.90 kg, p = 0.0001) and for hip extension (ΔHE = 2.52 kg, p = 0.0001) and flexion (ΔHF = 2.82 kg, p = 0.0001) exercise increased after therapy. IG scores were reduced in the experimental group after therapy (Δ = -16.73, p = 0.004). In conclusion, resistance exercise can improve IGF-1 levels, muscle strength and functional autonomy in older women with musculoskeletal dysfunction

Efeitos da cinesioterapia sobre os níveis de IGF-1, força muscular e autonomia funcional em mulheres idosas