Muscle fatigue during intermittent exercise in individuals with mental retardation

被引：20

作者：

Zafeiridis, Andreas ^{[1
]}

Giagazoglou, Paraskevi ^{[1
]}

Dipla, Konstantina ^{[1
]}

Salonikidis, Konstantinos ^{[1
]}

Karra, Chrisanthi ^{[1
]}

Kellis, Eleftherios ^{[1
]}

机构：

[1] Aristotle Univ Thessaloniki, TEFAA Serres, Dept Phys Educ & Sport Sci Serres, Ag Ioannis 62110, Serres, Greece

来源：

RESEARCH IN DEVELOPMENTAL DISABILITIES | 2010年 / 31卷 / 02期

关键词：

Exercise; Intellectual disability; Intelligence; Mental retardation; Fatigue; Strength; Rehabilitation; NERVE-CONDUCTION-VELOCITY; PHYSICAL-FITNESS; SEX-DIFFERENCES; INTELLECTUAL DISABILITY; NONDISABLED ADULTS; QUADRICEPS FEMORIS; AVERAGE POWER; DOWN-SYNDROME; ACTIVATION; INTELLIGENCE;

D O I：

10.1016/j.ridd.2009.10.003

中图分类号：

G76 [特殊教育];

学科分类号：

040109 ;

摘要：

This Study examined fatigue profile during intermittent exercise in 10 men with mild to moderate mental retardation (MR) and 10 men without mental retardation (C). They performed 4 x 30 s maximal knee extensions and flexions with 1-min rest on an isokinetic dynamometer. Peak torque of flexors (PTFL) and extensors (PTEX), total work (TW), and lactate were measured. Fatigue was calculated as the magnitude of decline (%) in PTFL. PTEX, and TW and as rate of decline (linear slope) in TW from 1 st to 4th set. MR had lower PTFL, PTEX, TW, and lactate throughout the protocol than C, while pre-motor time was greater in MR vs. C (p < 0.05). MR demonstrated a delayed pattern of reduction in muscular performance. Lower values were observed in MR vs. C in the magnitude of decline for PTEX and TW and the rate of decline for TW. In conclusion, MR exhibit a different fatigue profile during intermittent exercise than C. The lower magnitude and decline rate in neuromuscular performance in MR during intermittent exercise is associated with their lower peak strength, short-term anaerobic capacity, and lactate accumulation. Rehabilitation and sport professionals should consider the differences in fatigue profile when designing intermittent exercise programs for MR. (c) 2009 Elsevier Ltd. All rights reserved.

引用

页码：388 / 396

页数：9