Effects of high-intensity interval walking training on physical fitness and blood pressure in middle-aged and older people
Effects of high-intensity interval walking training on physical fitness and blood pressure in middle-aged and older people
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DOI：
10.4065/82.7.803
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发表时间：
2007-07-01
影响因子：
8.9
通讯作者：
Nose, Hiroshi
中科院分区：
文献类型：
--
作者：
Nemoto, Ken-ichi;Gen-no, Hirokazu;Nose, Hiroshi
目的：研究高强度间歇步行训练是否比中等强度连续步行训练更能提高大腿肌肉力量和峰值有氧能力，并降低血压。研究对象和方法：2004年5月18日至10月15日（5个月研究期），60名男性和186名女性，平均+/- SO年龄为636岁，随机分为3组：无步行训练、中强度连续步行训练和高强度间歇步行训练。参与者适度——！强度持续步行训练组被要求以大约50%的步行峰值有氧能力步行，使用计步器来验证他们每周4天或更长时间每天走8000步或更多步。高强度间歇步行训练组的参与者通过加速度计进行监测，他们被要求以达到峰值有氧能力的40%的速度重复5组或更多的3分钟低强度步行，然后每天进行高于峰值有氧能力70%的3分钟高强度步行，每周持续4天或更多。训练前后均测量了等长膝关节伸展和屈曲力、骑自行车时的峰值有氧能力和步行时的峰值有氧能力。结果：在无步行训练组中，25名男性中有9名达标，59名女性中有37名达标；在中等强度连续步行训练组中，16名男性中有8名达标，59名女性中有43名达标；在高强度间歇步行训练组中，19名男性中有11名达标，68名女性中有31名达标。在高强度间歇步行训练组中，等距膝关节伸展增加了13%，等距膝关节屈曲增加了17%，骑自行车的峰值有氧能力增加了8%，步行的峰值有氧能力增加了9%
OBJECTIVE: To examine whether high-intensity interval walking training increased thigh muscle strength and peak aerobic capacity and reduced blood pressure more than moderate-intensity continuous walking training.PARTICIPANTS AND METHODS: From May 18, 2004, to October 15, 2004 (5-month study period), 60 men and 186 women with a mean +/- SO age of 63 6 years were randomly divided into 3 groups: no walking training, moderate-intensity continuous walking training, and high-intensity interval walking training. Participants in the moderate-! intensity continuous walking training group were instructed to walk at approximately 50% of their peak aerobic capacity for walking, using a pedometer to verify that they took 8000 steps or more per day for 4 or more days per week. Those in the high-intensity interval walking training group, who were monitored by accelerometry, were instructed to repeat 5 or more sets of 3-minute low-intensity walking at 40% of peak aerobic capacity for walking followed by a 3-minute high-intensity walking above 70% of peak aerobic capacity for walking per day for 4 or more days per week. Isometric knee extension and flexion forces, peak aerobic capacity for cycling, and peak aerobic capacity for walking were all measured both before and after training.RESULTS: The targets were met by 9 of 25 men and 37 of 59 women in the no walking training group, by 8 of 16 men and 43 of 59 women in the moderate-intensity continuous walking training group, and by 11 of 19 men and 31 of 68 women in the high-intensity interval walking training group. In the high-intensity interval walking training group, isometric knee extension increased by 13%, isometric knee flexion by 17%, peak aerobic capacity for cycling by 8%, and peak aerobic capacity for walking by 9% (all, P