The impact of high and low-intensity exercise in adolescents with movement impairment

被引:3
作者
Liu, Francesca [1 ]
Morris, Martyn [1 ,2 ]
Hicklen, Lisa [3 ]
Izadi, Hooshang [4 ]
Dawes, Helen [1 ,5 ,6 ,7 ]
机构
[1] Oxford Brookes Univ, Dept Sport & Hlth Sci, Oxford, Oxon, England
[2] Coventry Univ, Dept Biomol & Sport Sci, Coventry, W Midlands, England
[3] Univ Texas Arlington, Dept Kinesiol, Arlington, TX 76019 USA
[4] Oxford Brookes Univ, Dept Mech Engn & Math Sci, Oxford, Oxon, England
[5] Oxford Brookes Univ, Oxford Inst Nursing & Allied Hlth Res OxINMAHR, Oxford, England
[6] Univ Oxford, Dept Clin Neurol, Oxford, England
[7] Cardiff Univ, Cardiff, S Glam, Wales
关键词
DEVELOPMENTAL COORDINATION DISORDER; PHYSICAL-ACTIVITY; SHUTTLE RUN; MOTOR SKILL; CHILDREN; FITNESS; PARTICIPATION; RELIABILITY; OXIDATION; FATIGUE;
D O I
10.1371/journal.pone.0195944
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Five to six percent of young people have movement impairment (MI) associated with reduced exercise tolerance and physical activity levels which persist into adulthood. To better understand the exercise experience in MI, we determined the physiological and perceptual responses during and following a bout of exercise performed at different intensities typically experienced during sport in youth with MI. Thirty-eight adolescents (11 +/- 18 years) categorised on the Bruininks-Oseretsky Test of Motor Proficiency-2 Short-Form performed a peak oxygen uptake bike test (VO2peak) test at visit 1 (V1). At visits 2 (V2) and 3 (V3), participants were randomly assigned to both low-intensity (LI) 30min exercise at 50% peak power output (PPO50%) and high-intensity (HI) 30s cycling at PPO100%, interspersed with 30s rest, for 30min protocol (matched for total work). Heart rate (HR) and rating of perceived exertion (RPE) for legs, breathing and overall was measured before, during and at 1, 3 and 7-min post-exercise (P1, P3, P7). There was a significant difference in VO2peak between groups (MI:31.5 +/- 9.2 vs. NMI:40.0 +/- 9.5ml.kg(-1).min(-1), p<0.05). PPO was significantly lower in MI group (MI:157 +/- 61 vs. NMI:216 +/- 57 W)(p<0.05). HRavg during HI-cycling was reduced in MI (140 +/- 18 vs. 157 +/- 14bpm, p<0.05), but not LI (133 +/- 18 vs. 143 +/- 17bpm, p>0.05). Both groups experienced similar RPE for breathing and overall (MI:7.0 +/- 3.0 vs. NMI: 6.0 +/- 2.0, p>0.05) at both intensities, but reported higher legs RPE towards the end (p<0.01). Significant differences were found in HRrecovery at P1 post-HI (MI: 128 +/- 25.9 vs. NMI:154 +/- 20.2, p<0.05) but not for legs RPE. Perceived fatigue appears to limit exercise in youth with MI in both high and low-intensity exercise types. Our findings suggest interventions reducing perceived fatigue during exercise may improve exercise tolerance and positively impact on engagement in physical activities.
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页数:16
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