American Journal of Sports Science and Medicine
ISSN (Print): 2333-4592 ISSN (Online): 2333-4606 Website: http://www.sciepub.com/journal/ajssm Editor-in-chief: Ratko Pavlović
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American Journal of Sports Science and Medicine. 2016, 4(3), 78-82
DOI: 10.12691/ajssm-4-3-3
Open AccessArticle

Effect of Short-Term Exercise on Controlled Force Exertion in Young and Middle-Aged Adults

Yoshinori Nagasawa1, and Shinichi Demura2

1Department of Health and Sports Science, Kyoto Pharmaceutical University, Kyoto, Japan

2Graduate School of Natural Science & Technology, Kanazawa University, Kanazawa, Japan

Pub. Date: August 29, 2016

Cite this paper:
Yoshinori Nagasawa and Shinichi Demura. Effect of Short-Term Exercise on Controlled Force Exertion in Young and Middle-Aged Adults. American Journal of Sports Science and Medicine. 2016; 4(3):78-82. doi: 10.12691/ajssm-4-3-3

Abstract

It is important to develop a method to accurately measure controlled force exertion (CFE) in order to evaluate coordination of neuromuscular function. This study aimed at examining the effect of short-term exercise on controlled force exertion in healthy young and middle-aged adults. Ten young (mean age = 20.7 y) and 10 middle-aged (mean age = 49.8 y) adults were included in the study. All subjects had a healthy central nervous system and had no disability in terms of motor functions. Also, none had engaged in regular exercise in the year prior to the study. Everyone participated in a general muscle strength training and aerobic exercise program twice a week during a 3-week period. They exerted the grip strength of the dominant hand and adjusted the grip strength based on the changing demand values displayed as a bar chart with a frequency of 0.3 Hz on a computer screen. A sum of errors between the demand values and the grip exertion values for 25 s was used as the evaluation parameter. A two-way analysis of variance (group and period) was used to examine significant differences among the means. Significant differences of variance were calculated to examine individual differences between the two groups by period. The middle-aged group had significantly greater errors than the young group. The errors decreased by approximately 20% in the young group and by approximately 10% in the middle-aged group during the second and third weeks. The variation in the errors in the middle-aged group was significantly greater than that in the young group during each period. In conclusion, we report that a combination of a general muscle strength training and aerobic exercise improves CFE in middle-aged and young adults. This effect is, however, less pronounced in middle-aged adults who also displayed a particularly small interindividual difference in CFE.

Keywords:
force output grip strength psychomotor performance tracking paradigm visuomotor processing

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References:

[1]  Bemben, M.G., Massey, B.H., Bemben, D.A., Misner, J.E., Boileau, R.A. (1991) Isometric muscle force production as a function of age in healthy 20- to 74-yr.-old men. Medicine and Science in Sports and Exercise, 23, 1302-1310.
 
[2]  Bemben, M.G., Massey, B.H., Bemben, D.A., Misner, J.E. and Boileau, R.A. (1996) Isometric intermittent endurance of four muscle groups in men aged 20-74 yr. Medicine and Science in Sports and Exercise, 28, 145-154.
 
[3]  Brown, S. W., & Bennett, E. D. (2002). The role of practice and automaticity in temporal and nontemporal dual-task performance. Psychological Research, 66, 80-89.
 
[4]  Cauley, J. A., Petrini, A. M., LaPorte, R. E., Sandler, R. B., Bayles, C. M., Robertson, R. J. and Slemenda, C. W.(1987) The decline of grip strength in the menopause: relationship to physical activity, estrogen use and anthropometric factors. Journal of Chronic Diseases, 40, 115-120.
 
[5]  Demura, S., Sato, S., and Nagasawa, Y. (2009) Re-examination of useful items for determining hand dominance. Gazzeta Medica Italiana–Archives of Science Medicine, 168, 169-177.
 
[6]  Deutsch, K. M., & Newell, K. M. (2001) Age differences in noise and variability of isometric force production. Journal of Experimental Child Psychology, 80, 392-408.
 
[7]  Doyon, J., & Benali, H. (2005) Reorganization and plasticity in the adult brain during learning of motor skills. Current Opinion Neurobiology, 15, 161-167.
 
[8]  Galganski, M. E., Fuglevand, A. J., & Enoka, R. M. (1993) Reduced control of motor output in a human hand muscle of elderly subjects during submaximal contractions. Journal of Neurophysiology, 69, 2108-2115.
 
[9]  Henatsch, H–D., & Langer, H. H. (1985) Basic neurophysiology of motor skills in sport: a review. International Journal of Sports Medicine, 6, 2-14.
 
[10]  Kubota, H., Demura, S., & Uchiyama, M. (2013) Effects of repeat training of the controlled force exertion test on dominant and non-dominant hands. American Journal of Sports Science and Medicine, 1, 47-51.
 
[11]  Nagasawa, Y., & Demura, S. (2002) Development of an apparatus to estimate coordinated exertion of force. Perceptual and Motor Skills, 94, 899-913.
 
[12]  Nagasawa, Y., & Demura, S. (2007) Provisional norm and age group differences of controlled force exertion measurements by a computing sinusoidal target-pursuit system in Japanese male adults. Human Performance Measurement, 4, 1-8.
 
[13]  Nagasawa, Y., & Demura, S. (2009) Age and sex differences of controlled force exertion measured by a computer-generated sinusoidal target-pursuit system. Journal of Physiological Anthropology, 28, 199-205.
 
[14]  Nagasawa, Y., Demura, S., & Kitabayashi, T (2004) Concurrent validity of tests to measure the coordinated exertion of force by computerized target-pursuit. Perceptual and Motor Skills, 98: 551-560.
 
[15]  Nagasawa, Y., Demura, S., & Nakata, M (2003) Reliability of a computerized target-pursuit system for measuring coordinated exertion of force. Perceptual and Motor Skills, 96, 1071-1085.
 
[16]  Nagasawa, Y., Demura, S., Yamaji, S., Kobayashi, H., & Matsuzawa, J. (2000) Ability to coordinate exertion of force by the dominant hand: comparisons among university students and 65- to 78- year-old men and women. Perceptual and Motor Skills, 90, 995-1007.
 
[17]  Noguchi, T., Demura, S., & Aoki, H. (2009) Superiority of the dominant and nondominant hands in static strength and controlled force exertion. Perceptual and Motor Skills, 109, 339-346.
 
[18]  Ofori, E., Samson, J. M., & Sosnoff, J. J. (2010) Age-related differences in force variability and visual display. Explain Brain Research, 203, 299-306.
 
[19]  Skelton, D. A., Greig, C. A., Davies, J. M., & Young, A. (1994) Strength, power and related functional ability of healthy people aged 65-89 years. Age and Ageing, 23, 371-377.
 
[20]  Society for Physical Fitness Standards Research in Tokyo Metropolitan University. (Ed.) (2000) [New Physical Fitness Standards of Japanese People]. (pp. 20-85). Tokyo, Japan: Fumaido. [in Japanese].
 
[21]  Sosnoff, J. J., & Newell, K. M. (2008) Age-related loss of adaptability to fast time scales in motor variability. Journal of Gerontology B: Psychological Science and Social Science, 63, 344-352.
 
[22]  Voelcker-Rehage C, Alberts JL. (2005) Age-related changes in grasping force modulation. Experimental Brain Research, 166, 61-70.
 
[23]  Walamies, M., & Turjanmaa, V. (1993) Assessment of the reproducibility of strength and endurance handgrip parameters using a digital analyzer. European Journal of Applied Physiology and Occupational Physiology, 67, 83-86.