Quantification of intensity of sensations during muscular work by normal subjects

被引:37
作者
Hamilton, AL
Killian, KJ
Summers, E
Jones, NL
机构
[1] Department of Medicine, McMaster University Medical Centre, Hamilton
[2] Ambrose Cardiorespiratory Unit, McMaster Univ. Medical Centre, Hamilton, Ont. L8N 3Z5
关键词
exercise; limitation;
D O I
10.1152/jappl.1996.81.3.1156
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
Eleven subjects performed a series of 30-s work bouts on a cycle ergometer at power outputs ranging from 20-120% of the work capacity (W-cap) achieved during an incremental cycle to exhaustion and estimated the intensity of several sensations (leg effort, muscle tension, muscle discomfort, muscle pain, and breathing discomfort) by using Borg's category-ratio scale (range 0-10 units). Leg effort was perceived as ''just noticeable'' at 31 +/- 15% W-cap, muscle tension was just noticeable at 31 +/- 16% W-cap muscle discomfort was just noticeable at 47 +/- 21% W-cap, breathing discomfort Tvas just. noticeable at 52 +/- 19% W-cap and muscle pain mas just noticeable at 58 +/- 33% W-cap. The intensity of all sensations increased in a positively accelerating manner with increases in power output (P < 0.001). Above 60% W-cap, the intensity of leg effort and muscle tension exceeded the intensity of muscle pain (P < 0.01), and above 100% W-cap the intensity of muscle discomfort also exceeded the intensity of muscle pain (P < 0.01). At 120% W-cap, leg effort, muscle tension; and muscle discomfort were rated between ''severe'' and ''very severe'' (6.1 +/- 2.2, 6.4 +/- 2.0, and 5.6 +/- 2.1 Borg units, respectively), whereas muscle pain and breathing discomfort were rated between ''moderate'' and ''somewhat severe'' (3.6 +/- 2.1 and 3.3 +/- 1.9 Borg units, respectively). These results suggest that subjects have a perception of muscle pain during muscular work that is distinct from perceptions of leg effort, muscle tension, and muscle discomfort.
引用
收藏
页码:1156 / 1161
页数:6
相关论文
共 31 条
[1]  
[Anonymous], 1981, Handbook of Physiology: The Nervous System III (Motor Control)
[2]   REFLEX ORIGIN FOR THE SLOWING OF MOTONEURON FIRING RATES IN FATIGUE OF HUMAN VOLUNTARY CONTRACTIONS [J].
BIGLANDRITCHIE, BR ;
DAWSON, NJ ;
JOHANSSON, RS ;
LIPPOLD, OCJ .
JOURNAL OF PHYSIOLOGY-LONDON, 1986, 379 :451-459
[3]  
Borg G, 1980, PSYCHOPHYSICAL JUDGE, P25
[4]   CHANGES IN THE PERCEPTION OF INSPIRATORY RESISTIVE LOADS DURING PARTIAL CURARIZATION [J].
CAMPBELL, EJM ;
GANDEVIA, SC ;
KILLIAN, KJ ;
MAHUTTE, CK ;
RIGG, JRA .
JOURNAL OF PHYSIOLOGY-LONDON, 1980, 309 (DEC) :93-100
[5]   EXCITATORY EFFECTS OF 5-HYDROXYTRYPTAMINE, HISTAMINE AND POTASSIUM-IONS ON MUSCULAR GROUP-4 AFFERENT UNITS - COMPARISON WITH BRADYKININ [J].
FOCK, S ;
MENSE, S .
BRAIN RESEARCH, 1976, 105 (03) :459-469
[6]   MUSCLE RECEPTORS WITH GROUP-4 AFFERENT-FIBERS RESPONDING TO APPLICATION OF BRADYKININ [J].
FRANZ, M ;
MENSE, S .
BRAIN RESEARCH, 1975, 92 (03) :369-383
[7]   THE EFFECT OF RESPIRATORY MUSCLE FATIGUE ON RESPIRATORY SENSATIONS [J].
GANDEVIA, SC ;
KILLIAN, KJ ;
CAMPBELL, EJM .
CLINICAL SCIENCE, 1981, 60 (04) :463-466
[8]   KINESTHETIC SIGNALS AND MUSCLE-CONTRACTION [J].
GANDEVIA, SC ;
MCCLOSKEY, DI ;
BURKE, D .
TRENDS IN NEUROSCIENCES, 1992, 15 (02) :62-65
[9]   SENSATIONS OF HEAVINESS [J].
GANDEVIA, SC ;
MCCLOSKEY, DI .
BRAIN, 1977, 100 (JUN) :345-354
[10]   ROLE OF SMALL DIAMETER AFFERENTS IN REFLEX INHIBITION DURING HUMAN MUSCLE FATIGUE [J].
GARLAND, SJ .
JOURNAL OF PHYSIOLOGY-LONDON, 1991, 435 :547-558