Electromyographic activity of shoulder muscles during wheelchair propulsion by paraplegic persons

被引:161
作者
Mulroy, SJ
Gronley, JK
Newsam, CJ
Perry, J
机构
[1] Rancho Los Amigos Medical Center, Pathokinesiology Laboratory, Downey, CA
[2] Rancho Los Amigos Medical Center, Pathokinesiology Laboratory, Bldg. 304, Downey, CA 90242
来源
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION | 1996年 / 77卷 / 02期
关键词
D O I
10.1016/S0003-9993(96)90166-5
中图分类号
R49 [康复医学];
学科分类号
100215 ;
摘要
Objective: Phasing and intensity of shoulder muscle activity during wheelchair propulsion were documented to identify muscles at risk for fatigue and overuse. Design and Participants: Electromyographic (EMG) activity of 12 muscles was recorded with wire electrodes in 17 paraplegic men during propulsion on a stationary ergometer. Main Outcome Measures: Push and recovery phases of the propulsion cycle were determined with an instrumented pushrim. Onset and cessation of EMG were compared between muscles with a repeated measures ANOVA. Average and peak EMG intensity also were identified. Results: All muscles functioned either in push or recovery phases, except supraspinatus, which displayed both patterns, and latissimus dorsi, which was inconsistent. The 6 push phase muscles-anterior deltoid, sternal pectoralis major, supraspinatus, infraspinatus, serratus anterior, and long head of biceps brachii-had onsets in late recovery (78% to 93% cycle) with peak EMG in the first 10% of the cycle. Pectoralis major and supraspinatus had the highest peak (58% and 67% MAX) and average (35% and 27% MAX) EMG intensities in this group. Cessation occurred in late push (17% to 23% cycle) except in biceps brachii (8% cycle) (p < .01). The 5 recovery muscles-middle and posterior deltoid, subscapularis, supraspinatus, and middle trapezius-had EMG onsets in late push (17% to 26% cycle) with moderate average intensities (21% to 32% MAX). These muscles had two EMG peaks (end of push and mid-recovery). Cessation was in late recovery (82% to 91% cycle). Conclusions: Muscles most vulnerable for fatigue were pectoralis major, supraspinatus, and recovery muscles. Endurance training was recommended. (C) 1996 by the American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation.
引用
收藏
页码:187 / 193
页数:7
相关论文
共 31 条
[1]   A NEW BIPOLAR ELECTRODE FOR ELECTROMYOGRAPHY [J].
BASMAJIAN, JV ;
STECKO, G .
JOURNAL OF APPLIED PHYSIOLOGY, 1962, 17 (05) :849-849
[2]   THE WEIGHT-BEARING SHOULDER - THE IMPINGEMENT SYNDROME IN PARAPLEGICS [J].
BAYLEY, JC ;
COCHRAN, TP ;
SLEDGE, CB .
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME, 1987, 69A (05) :676-678
[3]  
BEDNARCZYK JH, 1994, ARCH PHYS MED REHAB, V75, P1327
[4]   ELECTROMECHANICAL DELAY - AN EXPERIMENTAL ARTIFACT [J].
CORCOS, DM ;
GOTTLIEB, GL ;
LATASH, ML ;
ALMEIDA, GL ;
AGARWAL, GC .
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY, 1992, 2 (02) :59-68
[5]   LONG-TERM SPINAL-CORD INJURY - FUNCTIONAL-CHANGES OVER TIME [J].
GERHART, KA ;
BERGSTROM, E ;
CHARLIFUE, SW ;
MENTER, RR ;
WHITENECK, GG .
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION, 1993, 74 (10) :1030-1034
[6]   MUSCLE-ACTIVITY IN THE SPINAL-CORD INJURED DURING WHEELCHAIR AMBULATION [J].
HARBURN, KL ;
SPAULDING, SJ .
AMERICAN JOURNAL OF OCCUPATIONAL THERAPY, 1986, 40 (09) :629-636
[7]  
Inman VT, 1944, J BONE JOINT SURG, V26, P1
[8]  
LONG C, 1970, NORMAL ABNORMAL MOTO
[9]   BIOMECHANICAL ANALYSIS OF WHEELCHAIR PROPULSION FOR VARIOUS SEATING POSITIONS [J].
MASSE, LC ;
LAMONTAGNE, M ;
ORIAIN, MD .
JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT, 1992, 29 (03) :12-28
[10]  
MCLAURIN CA, 1991, PROSTHET ORTHOT INT, V15, P24