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Article

Effects of Progressive Resistance Training on Cognition and IGF-1 Levels in Elder Women Who Live in Areas with High Air Pollution

1
Facultad de Artes y Educación Física, Departamento de Educación Física, Universidad Metropolitana de Ciencias de la Educación, Santiago 8320000, Chile
2
Facultad de Educación y Ciencias Sociales, Carrera de Educación Física, Universidad Andrés Bello, Concepción 4600000, Chile
3
Facultad de Educación Ciencias Sociales y Humanidades, Departamento de Educación Física, Universidad de La Frontera, Temuco 4780000, Chile
4
Escuela de Kinesiología, Universidad Santo Tomás, Santiago 8320000, Chile
5
Physical Performance and Sports Research Centre, University of Pablo de Olavide, 41013 Sevilla, Spain
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(17), 6203; https://doi.org/10.3390/ijerph17176203
Received: 30 June 2020 / Revised: 14 August 2020 / Accepted: 19 August 2020 / Published: 26 August 2020
(This article belongs to the Section Environmental Health)
The aim of this study was to determine the effects of a muscular strength programme on the levels of insulin-like growth factor-1 (IGF-1) and cognitive status in elder women with mild cognitive impairment who lived in areas of high air pollution. A total of 157 women participated in the study, distributed in four groups: Active/Clean (AC n = 38) and Active/Pollution (AP n = 37), who carried out a progressive resistance training programme for 24 months, and Sedentary/Clean (SC n = 40) and Sedentary/Pollution (SP n = 42). Maximum strength in the upper and lower limbs (1RM), cognition (Mini-Mental Scale Examination (MMSE)) and blood IGF-1 were evaluated. At the beginning of the intervention, there were no differences between the groups in the assessed variables. The active groups which carried out the resistance training programme (AC and AP), registered better results in IGF-1 than the sedentary groups. These differences were statistically significant in AC vs. SC (p < 0.01) and AP vs. SC (p < 0.05). Regarding MMSE, group AC registered the highest score increases (+8.2%) (significantly better than the other groups), while group SP worsened (−7%) significantly compared to the other three groups. In conclusion, resistance training had a positive effect on IGF-1, while sedentary behaviour and air pollution had a negative effect on cognitive status. View Full-Text
Keywords: exercise; physical activity; cognitive impairment; sedentarism; strength muscular environmental health exercise; physical activity; cognitive impairment; sedentarism; strength muscular environmental health
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MDPI and ACS Style

Molina-Sotomayor, E.; Castillo-Quezada, H.; Martínez-Salazar, C.; González-Orb, M.; Espinoza-Salinas, A.; Gonzalez-Jurado, J.A. Effects of Progressive Resistance Training on Cognition and IGF-1 Levels in Elder Women Who Live in Areas with High Air Pollution. Int. J. Environ. Res. Public Health 2020, 17, 6203. https://doi.org/10.3390/ijerph17176203

AMA Style

Molina-Sotomayor E, Castillo-Quezada H, Martínez-Salazar C, González-Orb M, Espinoza-Salinas A, Gonzalez-Jurado JA. Effects of Progressive Resistance Training on Cognition and IGF-1 Levels in Elder Women Who Live in Areas with High Air Pollution. International Journal of Environmental Research and Public Health. 2020; 17(17):6203. https://doi.org/10.3390/ijerph17176203

Chicago/Turabian Style

Molina-Sotomayor, Edgardo, Humberto Castillo-Quezada, Cristian Martínez-Salazar, Marcelo González-Orb, Alexis Espinoza-Salinas, and Jose Antonio Gonzalez-Jurado. 2020. "Effects of Progressive Resistance Training on Cognition and IGF-1 Levels in Elder Women Who Live in Areas with High Air Pollution" International Journal of Environmental Research and Public Health 17, no. 17: 6203. https://doi.org/10.3390/ijerph17176203

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