Energy Expenditure, Cardiorespiratory, and Perceptual Responses to Shallow-Water Aquatic Exercise in Young Adult Women
Energy Expenditure, Cardiorespiratory, and Perceptual Responses to Shallow-Water Aquatic Exercise in Young Adult Women
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DOI：
10.3810/psm.2013.09.2018
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发表时间：
2013-09-01
影响因子：
2.3
通讯作者：
Robertson, Robert J.
中科院分区：
文献类型：
--
作者：
Nagle, Elizabeth F.;Sanders, Mary E.;Robertson, Robert J.
前言：水上运动(AE)是一种流行的体力活动形式，但很少有研究评估与持续水上运动相关的个体能量消耗。使用间接量热法测量EE的研究已经报告了与测试方法和控制个人运动强度或节奏的能力相关的局限性。目的：评估年轻成年女性在40分钟浅水声发射治疗期间的EE和心肺(CR)反应。方法：21名健康女性(年龄21.7+/-3.4岁)完成了定向练习和40分钟的浅水声发射训练，采用传统的锻炼课形式和基于汗水视频的教学提示程序。高强度间歇运动包括：1)热身(3min)；2)CR段(22min)；3)肌肉耐力段(ME；10min)；4)降温(5min)。每分钟评估受试者的氧耗量(VO2；mL/kg/min)、心率(HR)和OMNI总体力消耗评分(RPE-O)。计算平均大卡/分钟(1)、代谢当量(1 Met；1 Met=3.5毫升/公斤/分钟)和每段和整个会议的总大卡。结果：在40分钟的试验中(包括热身和降温部分)，受试者的总EE为264千卡，总体平均为6.3千卡/分钟(5.6兆卡)。整个CR片段2至6的平均大卡/分钟消耗为8.05(7.1METS)，其中Hoverjog片段产生的平均KCALS/分钟最大，为8.3(7.3 Met)。在40分钟的AE试验中，CR部分(22分钟)贡献了总EE(171千卡)的65%。在整个声发射试验中，受试者获得的最高和平均VO2分别为33.3和19.7毫升/公斤/分钟。受试者达到的平均最高心率为每分钟177次，相当于参与者年龄预测最大心率的90%。结论：在40分钟的AE训练中，能量消耗达到了国家推荐的每日中等到剧烈的体力活动，这为陆地运动提供了一个可行的替代方案。由于声发射是一种部分负重模式，需要进一步的研究来阐明浅水型声发射在明显健康和临床人群中的EE。
Introduction: Aquatic exercise (AE) is a popular form of physical activity, yet few studies have assessed the individual's energy expenditure (EE) associated with a continuous bout of AE. Studies using indirect calorimetry to measure EE have reported limitations associated with test methodology and the ability to control individual's exercise intensity or tempo. Purpose: To evaluate EE and cardiorespiratory (CR) responses during a 40-minute shallow-water AE session in young adult women. Methods: Twenty-one healthy women (aged 21.7 +/- 3.4 years) completed an orientation practice session and a 40-minute shallow-water AE session using a traditional exercise class format and the SWEAT video-based instructional cuing program. The high-intensity interval format included the following segments: 1) warm-up (3 minutes); 2) CR segment (22 minutes); 3) muscular endurance segment (ME; 10 minutes); and 4) cool-down (5 minutes). Subject oxygen consumption (VO2; mL/kg/min), heart rate (HR) and OMNI overall ratings of perceived exertion (RPE-O) were assessed each minute. Average kcal/min(1), metabolic equivalents (METs; 1 MET = 3.5 mL/kg/min), and total kcals per segment and for the overall session were calculated. Results: The total subject EE throughout the 40-minute trial (including warm-up and cool-down segments) was 264 kcals, with an overall average of 6.3 kcals/min (5.6 METs). The average kcals/min expended throughout CR segments 2 through 6 was 8.05 (7.1 METs), with the Hoverjog segment producing the greatest average kcals/min at 8.3 (7.3 METs). The CR portion (22 min) contributed 65% of the total EE (171 kcals) of the 40-minute AE trial. For the overall AE trial, the highest and average subject VO2 achieved were 33.3 and 19.7 mL/kg/min, respectively. The average highest subject heart rate achieved was 177 beats per minute (bpm), equivalent to 90% of the participant's age-predicted HRmax. Conclusion: Energy expenditure during a 40-minute AE session met national recommendations for a daily moderate-to-vigorous bout of physical activity offering a viable alternative to land-based exercise. Because AE serves as a partial-weight bearing modality, future studies are needed to clarify the EE of shallow-water AE in apparently healthy and clinical populations.