Muscle Activation and Perceived Loading During Rehabilitation Exercises: Comparison of Dumbbells and Elastic Resistance

被引:197
作者
Andersen, Lars L. [1 ]
Andersen, Christoffer H. [1 ]
Mortensen, Ole S. [1 ,2 ]
Poulsen, Otto M. [1 ]
Bjornlund, Inger Birthe T. [3 ]
Zebis, Mette K. [1 ]
机构
[1] Natl Res Ctr Working Environm, DK-2100 Copenhagen, Denmark
[2] Bispebjerg Hosp, Dept Occupat & Environm Med, Copenhagen, Denmark
[3] Metropolitan Univ Coll, Fac Physiotherapy, Copenhagen, Denmark
来源
PHYSICAL THERAPY | 2010年 / 90卷 / 04期
关键词
ELECTROMYOGRAPHIC ACTIVITY; TRAINING INTENSITY; NECK; STRENGTH; WOMEN; PROGRAM; TRIAL; PAIN;
D O I
10.2522/ptj.20090167
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
100224 [整形外科学];
摘要
Background. High-intensity resistance training plays an essential role in the prevention and rehabilitation of musculoskeletal injuries and disorders. Although resistance exercises with heavy weights yield high levels of muscle activation, the efficacy of more user-friendly forms of exercise needs to be examined. Objective. The aim of this study was to investigate muscle activation and perceived loading during upper-extremity resistance exercises with dumbbells compared with elastic tubing. Design. A single-group, repeated-measures study design was used. Setting. Exercise evaluation was conducted in a laboratory setting. Participants. Sixteen female workers (aged 26-55 years) without serious musculoskeletal diseases and with a mean neck and shoulder pain intensity of 7.8 on a 100-mm visual analog scale participated in the study. Measurements. Electromyographic (EMG) activity was measured in 5 selected muscles during the exercises of lateral raise, wrist extension, and shoulder external rotation during graded loadings with dumbbells (2-7.5 kg) and elastic tubing (Thera-Band, red to silver resistance). The order of exercises and loadings was randomized for each individual. Electromyographic amplitude was normalized to the absolute maximum EMG amplitude obtained during maximal voluntary isometric contraction and exercise testing. Immediately after each set of exercise, the Borg CR10 scale was used to rate perceived loading during the exercise. Results. Resistance exercise with dumbbells as well as elastic tubing showed increasing EMG amplitude and perceived loading with increasing resistance. At the individually maximal level of resistance for each exercise defined as the 3 repetitions maximum normalized EMG activity of the prime muscles was not significantly different between dumbbells (59%-87%) and elastic tubing (64%-86%). Perceived loading was moderately to very strongly related to normalized EMG activity (r=.59-.92). Limitations. The results of this study apply only for exercises performed in a controlled manner (ie, without sudden jerks or high acceleration). Conclusions. Comparably high levels of muscle activation were obtained during resistance exercises with dumbbells and elastic tubing, indicating that therapists can choose either type in clinical practice. The Borg CR10 can be a useful aid in estimating intensity of individual rehabilitation protocols.
引用
收藏
页码:538 / 549
页数:12
相关论文
共 42 条
[11]
Bull M L, 2002, Electromyogr Clin Neurophysiol, V42, P79
[12]
AN ELECTROMYOGRAPHIC COMPARISON OF NECK CONDITIONING EXERCISES IN HEALTHY CONTROLS [J].
Burnett, Angus F. ;
Coleman, Jemma L. ;
Netto, Kevin J. .
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH, 2008, 22 (02) :447-454
[13]
EFFECTS OF A SHORT-TERM RESISTANCE PROGRAM USING ELASTIC BANDS VERSUS WEIGHT MACHINES FOR SEDENTARY MIDDLE-AGED WOMEN [J].
Colado, Juan C. ;
Triplett, N. Travis .
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH, 2008, 22 (05) :1441-1448
[14]
Shoulder muscle recruitment patterns during commonly used rotator cuff exercises: An electromyographic study [J].
Dark, Alanna ;
Ginn, Karen A. ;
Halaki, Mark .
PHYSICAL THERAPY, 2007, 87 (08) :1039-1046
[15]
Serratus anterior muscle activity during selected rehabilitation exercises [J].
Decker, MJ ;
Hintermeister, RA ;
Faber, KJ ;
Hawkins, RJ .
AMERICAN JOURNAL OF SPORTS MEDICINE, 1999, 27 (06) :784-791
[16]
DELORME TL, 1945, J BONE JOINT SURG, V27, P645
[17]
Surface electromyographic analysis of exercises for the trapezius and serratus anterior muscles [J].
Ekstrom, RA ;
Donatelli, RA ;
Soderberg, GL .
JOURNAL OF ORTHOPAEDIC & SPORTS PHYSICAL THERAPY, 2003, 33 (05) :247-258
[18]
Perceived exertion and training load during self-selected and imposed-intensity resistance exercise in untrained women [J].
Focht, Brian C. .
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH, 2007, 21 (01) :183-187
[19]
Glass SC, 2004, J STRENGTH COND RES, V18, P324
[20]
Human muscle fibre abnormalities related to occupational load [J].
Hägg, GM .
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY, 2000, 83 (2-3) :159-165