Intensity Zones and Intensity Thresholds Used to Quantify External Load in Competitive Basketball: A Systematic Review

IF 9.3 1区 医学 Q1 SPORT SCIENCES
Matthew C. Tuttle, Cody J. Power, Vincent J. Dalbo, Aaron T. Scanlan
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引用次数: 0

Abstract

Background

Despite widespread use of intensity zones to quantify external load variables in basketball research, the consistency in identifying zones and accompanying intensity thresholds using predominant monitoring approaches in training and games remains unclear.

Objectives

The purpose of this work was to examine the external load intensity zones and thresholds adopted across basketball studies using video-based time-motion analysis (TMA), microsensors, and local positioning systems (LPS).

Methods

PubMed, MEDLINE, and SPORTDiscus databases were searched from inception until 31 January 2023 for studies using intensity zones to quantify external load during basketball training sessions or games. Studies were excluded if they examined players participating in recreational or wheelchair basketball, were reviews or meta-analyses, or utilized monitoring approaches other than video-based TMA, microsensors, or LPS.

Results

Following screening, 86 studies were included. Video-based TMA studies consistently classified jogging, running, sprinting, and jumping as intensity zones, but demonstrated considerable variation in classifying low-intensity (standing and walking) and basketball-specific activities. Microsensor studies mostly utilized a single, and rather consistent, threshold to identify only high-intensity activities (> 3.5 m·s−2 for accelerations, decelerations, and changes-in-direction or > 40 cm for jumps), not separately quantifying lower intensity zones. Similarly, LPS studies predominantly quantified only high-intensity activities in a relatively consistent manner for speed (> 18.0 m·s−1) and acceleration/deceleration zones (> 2.0 m·s−2); however, the thresholds adopted for various intensity zones differed greatly to those used in TMA and microsensor research.

Conclusions

Notable inconsistencies were mostly evident for low-intensity activities, basketball-specific activities, and between the different monitoring approaches. Accordingly, we recommend further research to inform the development of consensus guidelines outlining suitable approaches when setting external load intensity zones and accompanying thresholds in research and practice.

Abstract Image

用于量化竞技篮球运动外部负荷的强度区和强度阈值:系统回顾
背景尽管在篮球研究中广泛使用强度区来量化外部负荷变量,但在训练和比赛中使用主要监测方法确定强度区和相应强度阈值的一致性仍不清楚。本研究的目的是利用基于视频的时间运动分析(TMA)、微传感器和局部定位系统(LPS),对篮球研究中采用的外部负荷强度区和阈值进行研究。方法检索了从开始到 2023 年 1 月 31 日在 PubMed、MEDLINE 和 SPORTDiscus 数据库中使用强度区量化篮球训练课或比赛中外部负荷的研究。如果研究对象是参加休闲篮球或轮椅篮球的球员,是综述或荟萃分析,或使用的监测方法不是基于视频的 TMA、微传感器或 LPS,则排除这些研究。基于视频的 TMA 研究一致将慢跑、跑步、短跑和跳跃划分为强度区,但在低强度(站立和行走)和篮球特定活动的划分上存在相当大的差异。微传感器研究大多采用单一且相当一致的阈值来识别高强度活动(> 3.5 m-s-2(加速、减速和方向变化)或> 40 cm(跳跃)),而不是单独量化较低强度区。同样,LPS 研究主要只以相对一致的方式对高强度活动的速度(> 18.0 m-s-1)和加速度/减速度区(> 2.0 m-s-2)进行量化;但是,各种强度区所采用的阈值与 TMA 和微传感器研究中使用的阈值差别很大。因此,我们建议开展进一步研究,为制定共识指南提供信息,该指南概述了在研究和实践中设定外部负荷强度区和相应阈值的合适方法。
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来源期刊
Sports Medicine
Sports Medicine 医学-运动科学
CiteScore
18.40
自引率
5.10%
发文量
165
审稿时长
6-12 weeks
期刊介绍: Sports Medicine focuses on providing definitive and comprehensive review articles that interpret and evaluate current literature, aiming to offer insights into research findings in the sports medicine and exercise field. The journal covers major topics such as sports medicine and sports science, medical syndromes associated with sport and exercise, clinical medicine's role in injury prevention and treatment, exercise for rehabilitation and health, and the application of physiological and biomechanical principles to specific sports. Types of Articles: Review Articles: Definitive and comprehensive reviews that interpret and evaluate current literature to provide rationale for and application of research findings. Leading/Current Opinion Articles: Overviews of contentious or emerging issues in the field. Original Research Articles: High-quality research articles. Enhanced Features: Additional features like slide sets, videos, and animations aimed at increasing the visibility, readership, and educational value of the journal's content. Plain Language Summaries: Summaries accompanying articles to assist readers in understanding important medical advances. Peer Review Process: All manuscripts undergo peer review by international experts to ensure quality and rigor. The journal also welcomes Letters to the Editor, which will be considered for publication.
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