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J Musculoskelet Neuronal Interact., 2009; 9(4): 263-7, PMID: 19949284

Normative values for maximum power during motor function assessment of jumping among physically active Japanese

Year: 2009

Tsubaki A, Kubo M, Kobayashi R, Jigami H, Takahashi HE
Department of Physical Therapy, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata-shi, Niigata, Japan.


Objectives: To determine the relationship between maximum power relative to body weight (Pmax-rel) and the aging process, and to indicate the target values of improvement of motor function in Japanese individuals. Methods: In 410 physically active Japanese subjects (7-79 years) with no impairment of daily activities were performed counter-movement jumps. We evaluated the correlation between age and Pmax-rel, mean Pmax-rel by age group, and the percentage Esslinger Fitness Index score relative to 100% for same-age Europeans (%EFI), by gender. Results: Age and Pmax-rel were correlated in both males aged <18 and >/=18 years old (both p<0.01) and females aged <18 and >/=18 years old (both p<0.01). Pmax-rel declined gradually with age, reaching 53.5% of the peak in subjects in their 70s. There was no significant difference in %EFI scores in most age groups. Conclusion: Similar to Europeans, Pmax-rel in Japanese individuals is closely correlated with age, declining to 53% of the peak in subjects in their 70s. Thus, Pmax-rel and the %EFI appear to be suitable as normative indices applicable to different human populations for the assessment of physical function.

Keywords: Leonardo Normative Data
GID: 2082; Last update: 02.12.2009
More information: Original Article