Elderly obese women display the greatest improvement in stair climbing performance after a 3-week body mass reduction program

A. Sartorio, C. L. Lafortuna, F. Agosti, M. Proietti, N. A. Maffiuletti

Research output: Contribution to journalArticle

Abstract

OBJECTIVE: To investigate whether stair climbing performance and body composition are similarly affected by a body mass reduction (BMR) program in obese individuals of different gender, age and body mass index (BMI) level. DESIGN: Longitudinal, clinical intervention study entailing energy-restricted diet (5023-7535 kJ/day), nutritional education, psychological counselling and moderate physical activity (indoor cycling, outdoor walking, gymnastics routines, five sessions/ week) during a 3-week period. SUBJECTS: A total of 466 male and 807 female subjects categorized as a function of gender, age (<vs ≥ 50 y) and BMI (<vs ≥ 40 kg/m2). MEASUREMENTS: Body mass, stair climbing time and power before and after the BMR program. Fat-free mass and fat mass were also evaluated by bioimpedance analysis, in a representative subgroup of 160 patients, to evaluate the relation between fat-free mass and power output. RESULTS: Body mass, fat-free mass and fat mass significantly decreased following the BMR program (P <0.001), with male subjects reducing body mass and fat-free mass more than and fat mass less than the female subjects. Stair climbing time decreased (P <0.001) and therefore anaerobic power significantly increased 9.7% after the treatment. The greatest improvement in stair climbing performance was observed in obese women aged ≥ 50 y. Significant inverse correlations were found between initial power or fat-free mass level and respective percent increases (R = -0.35/-0.37, P <0.001) and between BMR-induced percent changes in body mass and power (R = -0.13, P <0.001). CONCLUSION: Subjects with the lowest baseline level in stair climbing performance (and probably with the lowest amount of fat-free mass), that is, obese women aged more than 50 y, obtained the largest enhancement after the 3-week BMR program, likely improving overall functional capacities and resulting in greater independence during daily-living activities in such a population.

Original languageEnglish
Pages (from-to)1097-1104
Number of pages8
JournalInternational Journal of Obesity
Volume28
Issue number9
DOIs
Publication statusPublished - Sep 2004

Fingerprint

Fats
lipids
Body Mass Index
Gymnastics
Stair Climbing
Activities of Daily Living
Body Composition
body mass index
Walking
Counseling
Exercise
Psychology
Diet
Education
low calorie diet
bioelectrical impedance
lean body mass
counseling
gender
nutrition education

Keywords

  • BMI
  • Muscle power
  • Sarcopenia
  • Stair climbing

ASJC Scopus subject areas

  • Food Science
  • Endocrinology
  • Medicine (miscellaneous)
  • Endocrinology, Diabetes and Metabolism
  • Public Health, Environmental and Occupational Health

Cite this

Elderly obese women display the greatest improvement in stair climbing performance after a 3-week body mass reduction program. / Sartorio, A.; Lafortuna, C. L.; Agosti, F.; Proietti, M.; Maffiuletti, N. A.

In: International Journal of Obesity, Vol. 28, No. 9, 09.2004, p. 1097-1104.

Research output: Contribution to journalArticle

Sartorio, A. ; Lafortuna, C. L. ; Agosti, F. ; Proietti, M. ; Maffiuletti, N. A. / Elderly obese women display the greatest improvement in stair climbing performance after a 3-week body mass reduction program. In: International Journal of Obesity. 2004 ; Vol. 28, No. 9. pp. 1097-1104.
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AU - Maffiuletti, N. A.

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N2 - OBJECTIVE: To investigate whether stair climbing performance and body composition are similarly affected by a body mass reduction (BMR) program in obese individuals of different gender, age and body mass index (BMI) level. DESIGN: Longitudinal, clinical intervention study entailing energy-restricted diet (5023-7535 kJ/day), nutritional education, psychological counselling and moderate physical activity (indoor cycling, outdoor walking, gymnastics routines, five sessions/ week) during a 3-week period. SUBJECTS: A total of 466 male and 807 female subjects categorized as a function of gender, age (2). MEASUREMENTS: Body mass, stair climbing time and power before and after the BMR program. Fat-free mass and fat mass were also evaluated by bioimpedance analysis, in a representative subgroup of 160 patients, to evaluate the relation between fat-free mass and power output. RESULTS: Body mass, fat-free mass and fat mass significantly decreased following the BMR program (P <0.001), with male subjects reducing body mass and fat-free mass more than and fat mass less than the female subjects. Stair climbing time decreased (P <0.001) and therefore anaerobic power significantly increased 9.7% after the treatment. The greatest improvement in stair climbing performance was observed in obese women aged ≥ 50 y. Significant inverse correlations were found between initial power or fat-free mass level and respective percent increases (R = -0.35/-0.37, P <0.001) and between BMR-induced percent changes in body mass and power (R = -0.13, P <0.001). CONCLUSION: Subjects with the lowest baseline level in stair climbing performance (and probably with the lowest amount of fat-free mass), that is, obese women aged more than 50 y, obtained the largest enhancement after the 3-week BMR program, likely improving overall functional capacities and resulting in greater independence during daily-living activities in such a population.

AB - OBJECTIVE: To investigate whether stair climbing performance and body composition are similarly affected by a body mass reduction (BMR) program in obese individuals of different gender, age and body mass index (BMI) level. DESIGN: Longitudinal, clinical intervention study entailing energy-restricted diet (5023-7535 kJ/day), nutritional education, psychological counselling and moderate physical activity (indoor cycling, outdoor walking, gymnastics routines, five sessions/ week) during a 3-week period. SUBJECTS: A total of 466 male and 807 female subjects categorized as a function of gender, age (2). MEASUREMENTS: Body mass, stair climbing time and power before and after the BMR program. Fat-free mass and fat mass were also evaluated by bioimpedance analysis, in a representative subgroup of 160 patients, to evaluate the relation between fat-free mass and power output. RESULTS: Body mass, fat-free mass and fat mass significantly decreased following the BMR program (P <0.001), with male subjects reducing body mass and fat-free mass more than and fat mass less than the female subjects. Stair climbing time decreased (P <0.001) and therefore anaerobic power significantly increased 9.7% after the treatment. The greatest improvement in stair climbing performance was observed in obese women aged ≥ 50 y. Significant inverse correlations were found between initial power or fat-free mass level and respective percent increases (R = -0.35/-0.37, P <0.001) and between BMR-induced percent changes in body mass and power (R = -0.13, P <0.001). CONCLUSION: Subjects with the lowest baseline level in stair climbing performance (and probably with the lowest amount of fat-free mass), that is, obese women aged more than 50 y, obtained the largest enhancement after the 3-week BMR program, likely improving overall functional capacities and resulting in greater independence during daily-living activities in such a population.

KW - BMI

KW - Muscle power

KW - Sarcopenia

KW - Stair climbing

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