Practicing a Functional Task Improves Steadiness with Hand Muscles in Older Adults

被引:38
作者
Marmon, Adam R. [1 ]
Gould, Jeffrey R. [2 ]
Enoka, Roger M. [2 ]
机构
[1] Univ Delaware, Dept Phys Therapy, McKinley Lab 301, Newark, DE 19711 USA
[2] Univ Colorado, Dept Integrat Physiol, Boulder, CO 80309 USA
基金
美国国家卫生研究院;
关键词
AGING; GROOVED PEGBOARD; PRACTICE; HAND FUNCTION; MOTOR UNIT DISCHARGE; CONTRACTIONS; VARIABILITY; STRENGTH; OUTPUT; FORCE; FLUCTUATIONS; ORGANIZATION;
D O I
10.1249/MSS.0b013e3182100439
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
MARMON, A. R., J. R. GOULD, and R. M. ENOKA. Practicing a Functional Task Improves Steadiness with Hand Muscles in Older Adults. Med. Sci. Sports Exerc., Vol. 43, No. 8, pp. 1531-1537, 2011. Introduction: Improvements in steadiness with practice have been associated with enhanced performance on a functional task in old adults. Purpose: The aims of the study were to examine the specificity of the association between steadiness and a functional task and to assess the influence of practicing a functional task on force steadiness of hand muscles. Methods: Twenty-three older adults (>= 70 yr) participated in the study and were assigned to either a practice group (n = 15) or a control group (n = 8). Subjects completed two testing sessions that were 2 wk apart. The practice group completed six additional sessions to practice a functional task (Grooved Pegboard). Tests included maximal voluntary contractions (MVC), force steadiness (precision pinch and index finger abduction) at three target forces (5%, 15%, and 25% MVC), and the Grooved Pegboard test. The associations between strength, steadiness, and the time needed to complete the Grooved Pegboard test were examined. In addition, MVC force, steadiness, and pegboard time were compared between the two testing sessions. Results: The time needed to complete the Grooved Pegboard test was associated with index finger abduction steadiness for two of the three target forces (15% and 25% MVC) but was not associated with pinch steadiness. Practice significantly reduced the time needed to complete the Grooved Pegboard test and improved steadiness in both tasks. Conclusions: Force steadiness provides an appropriate index of hand function, especially when measured at low forces.
引用
收藏
页码:1531 / 1537
页数:7
相关论文
共 50 条
[41]   STRENGTH AND FATIGUE OF LUMBAR EXTENSOR MUSCLES IN OLDER ADULTS [J].
Singh, Devinder Kaur Ajit ;
Bailey, Martin ;
Lee, Raymond .
MUSCLE & NERVE, 2011, 44 (01) :74-79
[42]   Measuring Hand Sensory Function and Force Control in Older Adults: Are Current Hand Assessment Tools Enough? [J].
Logue, Rachel N. ;
Goldenkoff, Elana R. ;
Vesia, Michael ;
Brown, Susan H. .
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES, 2022, 77 (07) :1405-1412
[43]   Balance Performance Is Task Specific in Older Adults [J].
Dunsky, Ayelet ;
Zeev, Aviva ;
Netz, Yael .
BIOMED RESEARCH INTERNATIONAL, 2017, 2017
[44]   Bed mobility task performance in older adults [J].
Alexander, NB ;
Grunawalt, JC ;
Carlos, S ;
Augustine, J .
JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT, 2000, 37 (05) :633-638
[45]   Resistance training improves capacity to delay neuromuscular fatigue in older adults [J].
Emerson, Nadia S. ;
Stout, Jeffrey R. ;
Fukuda, David H. ;
Robinson, Edward H. ;
Scanlon, Tyler C. ;
Beyer, Kyle S. ;
Fragala, Maren S. ;
Hoffman, Jay R. .
ARCHIVES OF GERONTOLOGY AND GERIATRICS, 2015, 61 (01) :27-32
[46]   Muscle quality index improves with resistance exercise training in older adults [J].
Fragala, Maren S. ;
Fukuda, David H. ;
Stout, Jeffrey R. ;
Townsend, Jeremy R. ;
Emerson, Nadia S. ;
Boone, Carleigh H. ;
Beyer, Kyle S. ;
Oliveira, Leonardo P. ;
Hoffman, Jay R. .
EXPERIMENTAL GERONTOLOGY, 2014, 53 :1-6
[47]   Motor Imagery Improves Balance in Older Adults [J].
Chiacchiero, Michael ;
Cagliostro, Philip ;
DeGenaro, Jason ;
Giannina, Cory ;
Rabinovich, Yevgeny .
TOPICS IN GERIATRIC REHABILITATION, 2015, 31 (02) :159-163
[48]   Audio-Visual Training in Older Adults: 2-Interval-Forced Choice Task Improves Performance [J].
O'Brien, Jessica M. ;
Chan, Jason S. ;
Setti, Annalisa .
FRONTIERS IN NEUROSCIENCE, 2020, 14
[49]   Altered visual strategies and attention are related to increased force fluctuations during a pinch grip task in older adults [J].
Keenan, Kevin G. ;
Huddleston, Wendy E. ;
Ernest, Bradley E. .
JOURNAL OF NEUROPHYSIOLOGY, 2017, 118 (05) :2537-2548
[50]   Multimodal intervention in older adults improves resting-state functional connectivity between the medial prefrontal cortex and medial temporal lobe [J].
Li, Rui ;
Zhu, Xinyi ;
Yin, Shufei ;
Niu, Yanan ;
Zheng, Zhiwei ;
Huang, Xin ;
Wang, Baoxi ;
Li, Juan .
FRONTIERS IN AGING NEUROSCIENCE, 2014, 6