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新手健全人和训练有素的轮椅运动员对轮椅推进的感知用力反应不同。

Perceived exertion responses to wheelchair propulsion differ between novice able-bodied and trained wheelchair sportspeople.

机构信息

The Peter Harrison Centre for Disability Sport, School of Sport, Exercise and Health Sciences Loughborough University, United Kingdom.

The Peter Harrison Centre for Disability Sport, School of Sport, Exercise and Health Sciences Loughborough University, United Kingdom.

出版信息

J Sci Med Sport. 2020 Apr;23(4):403-407. doi: 10.1016/j.jsams.2019.10.012. Epub 2019 Oct 23.

Abstract

OBJECTIVES

To investigate peripheral (RPE) and central (RPE) Ratings of Perceived Exertion during wheelchair propulsion in untrained able-bodied (AB) participants, and trained wheelchair rugby athletes with and without cervical spinal cord injury (CSCI).

DESIGN

Cross-sectional study.

METHODS

38 participants (AB: n=20; wheelchair rugby athletes with CSCI: n=9; without CSCI: n=9) completed an incremental wheelchair propulsion test to exhaustion on a motorised treadmill. Gas exchange measures and heart rate (HR) were collected throughout. RPE and RPE on the Category Ratio-10 were verbally recorded each minute. Blood lactate concentration ([BLa]) was determined post-test.

RESULTS

Between 50-100% peak oxygen uptake (V̇O), RPE was greater than RPE in AB (p<0.05), but not in athletes with (p=0.07) or without (p=0.16) CSCI. RPE was greater in AB compared to players with CSCI (Effect sizes: 1.24-1.62), as were respiratory exchange ratio (1.02±0.10 vs 0.82±0.11, p<0.05) and [BLa] (7.98±2.53 vs 4.66±1.57mmol·L). RPE was greater in athletes without CSCI compared to those with CSCI (Effect sizes: 0.70-1.38), as were HR (166±20 vs 104±15 beats·min, p<0.05) and ventilation (59.2±28.8 vs 35.1±16.6L·min, p=0.01).

CONCLUSIONS

RPE was dominant over RPE during wheelchair propulsion for untrained AB participants. For athletes with CSCI, lower RPE and RPE were reported at the same %V̇O compared to those without CSCI. The mechanism for this remains to be fully elucidated.

摘要

目的

研究未经训练的健全(AB)参与者和有或无颈脊髓损伤(CSCI)的训练有素的轮椅橄榄球运动员在推动轮椅时外周(RPE)和中央(RPE)感知用力的评分。

设计

横断面研究。

方法

38 名参与者(AB:n=20;有 CSCI 的轮椅橄榄球运动员:n=9;无 CSCI:n=9)在电动跑步机上完成递增式轮椅推进至力竭测试。整个过程中收集气体交换测量值和心率(HR)。每分钟口头记录 RPE 和比率 10 量表上的 RPE。测试后测定血乳酸浓度([BLa])。

结果

在 50-100%峰值摄氧量(V̇O)之间,AB 中的 RPE 大于 RPE(p<0.05),但在有(p=0.07)或无(p=0.16)CSCI 的运动员中则不然。AB 中的 RPE 大于有 CSCI 的运动员(效应大小:1.24-1.62),呼吸交换比(1.02±0.10 比 0.82±0.11,p<0.05)和 [BLa](7.98±2.53 比 4.66±1.57mmol·L)也是如此。无 CSCI 的运动员中的 RPE 大于有 CSCI 的运动员(效应大小:0.70-1.38),HR(166±20 比 104±15 次·min,p<0.05)和通气量(59.2±28.8 比 35.1±16.6L·min,p=0.01)也是如此。

结论

对于未经训练的 AB 参与者,在推动轮椅时,RPE 占主导地位,而 RPE 则不然。对于有 CSCI 的运动员,与无 CSCI 的运动员相比,在相同的 %V̇O 下报告的 RPE 和 RPE 较低。其机制仍有待充分阐明。

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