Clare Humberstone

Australian Institute of Sport (AIS) · Division of Physiology

This study aimed to examine the effect of intense intermittent lower‐body and trunk exercise (rowing) on punching performance in 28 highly‐trained male amateur boxers. Straight‐ and bent‐arm punch performances were assessed with a custom‐built punch integrator using a 3‐min maximal‐effort punch test, completed in both non‐fatigued (ROW pre ) and fa...

A typical assumption found in talent identification literature is that different coaches, given the same athletes and circumstances, will identify the same subset of athletes as "talented". However, while coaches play a major role during talent identification in practical sport settings, there is limited empirical research exploring the processes w...

Coaches are an integral part of talent identification in sport and are often used as the "gold standard" against which scientific methods of talent identification are compared. However, their decision-making during this process is not well understood. In this article, we use an ecological approach to explore talent identification in combat sports....

Dunn, EC, Humberstone, CE, Franchini, E, Iredale, KF, and Blazevich, AJ. Relationships between punch impact force and upper- and lower-body muscular strength and power in highly trained amateur boxers. J Strength Cond Res XX(X): 000-000, 2020-This study examined the relationship between upper- and lower-body strength and power characteristics and p...

Objectives: Talent identification traditionally relies on the knowledge and perceptions of expert coaches to identify and predict potential future elite athletes. Experiential coach knowledge is a valuable source of information to guide research in this ill-defined and under-researched area. This review aims to synthesize current empirical underst...

The objective of this study was to compare athletes' pacing during judo match simulation between different fatigue states. Twelve judo athletes (30.2 ± 3.2 years old, 85.6 ± 10.8 kg, 181.0 ± 5.7 cm, 19 ± 7 years of judo experience) completed three 4-minute matches against the same opponents, at 15-minute intervals in 3 different conditions: after w...

Measurement of punch performance in a reliable, quantitative manner is relevant to combat sport, military, and concussion research. A punching protocol (3MPT) was developed, based on performance demands of amateur boxing, and evaluated on a custom‐built punch integrator (PI). PI reliability and accuracy were assessed by calculating TE and CV for a...

The objective of the present study was to analyse pacing in judo matches, considering differences related to match duration, sex and weight category. Time-motion measures of 1960 judo matches from the 2017 Judo World Tour (World Championship, World Masters, Grand Slam, and Grand Prix) were analysed. The sum of high-intensity actions (attack, feints...

Purpose:: To compare the effects of natural altitude training and simulated live high: train low training on road race-walking performance (min), as well as treadmill threshold walking speed (km.h-1) at 4 mmol.L-1 (THRESH), and maximal oxygen consumption (VO2max), at 1380 m. Methods:: Twenty-two elite-level, male (n = 15) and female (n = 7) race...

BACKGROUND AND AIM • Current talent identification (TID) practices are based primarily on measureable physical attributes of athletes, however recent research has indicated that a multidimensional approach is needed • Dynamical Systems Theory (DST) provides a framework for understanding the complex interactions of multiple constraints on athletic t...

Background. In 2009, the International Judo Federation established the Judo World Tour and the judo Ranking List (WRL), initially for senior and then for cadet and junior athletes. However, no study has investigated its predictive power for World Championships for senior, junior or cadet age groups. Problem and aim. To verify the relationship betwe...

Humans commonly ascertain physical dominance through non-lethal fighting by participating in combat sports. However, the behaviours that achieve fight dominance are not fully understood. Amateur boxing competition, which is judged using the subjective “Ten Point Must-System”, provides insight into fight dominance behaviours. Notational analysis was...

Presentation of preliminary research results of the opinions of expert combat coaches on the factors that they use to identify talent in young combat sport athletes

Introduction: Elite athletes tend to utilise electronic devices to stay connected with family and friends and to promote competitive events. However, excessive late night use of electronic devices can decrease the total time available for sleep. The aim of this study was to determine the effect of evening use of electronic devices on overnight slee...

nternational training camps provide relevant challenges and are highly desired by Olympic combat sport athletes. Unfortunately, increased training volume and intensity can expose athletes to an increased risk of injury. Research identifying injuries in elite Jukoda sustained during camp situations is limited. PURPOSE: Record type and severity of in...

A maximal effort during an explosive non-fatiguing lower-body exercise can be used to assess neuromuscular function. Jumping tests have been adopted in many experimental designs to monitor fatigue in high performance athletes but most involve vertical jumping and use of equipment to measure flight time or vertical displacement. Although vertical ju...

BACKGROUND: Understanding day to day reliability of techniques used to monitor hydration status is important for interventional studies aimed at manipulating total body water (TBW) and body mass (BM). BM, urine osmolality and TBW (measured via electrical impedance) have all been used to assess hydration status. Multi-frequency bioelectrical impedan...

Exercise-induced hemoglobinuria (HBU) and proteinuria (PU) can be caused by several mechanisms including impact. These phenomena have been documented in several settings including combat sports. Descriptions of judo training document the presence of HBU and PU, however less is known about responses during actual judo competitions. PURPOSE: The purp...

Objective To characterise the time course of changes in haemoglobin mass (Hbmass) in response to altitude exposure. Methods This meta-analysis uses raw data from 17 studies that used carbon monoxide rebreathing to determine Hbmass prealtitude, during altitude and postaltitude. Seven studies were classic altitude training, eight were live high trai...

Live High: Train Low (LHTL) altitude training is a popular ergogenic aid amongst athletes. An alternative hypoxia protocol, acute (60-90 min daily) Intermittent Hypoxic Exposure (IHE), has shown potential for improving athletic performance. The aim of this study was to compare directly the effects of LHTL and IHE on the running and blood characteri...

This study sought to quantify the effects of reduced training, surgery and changes in body mass on haemoglobin mass (Hbmass) in athletes. Hbmass of 15 athletes (6 males, 9 females) was measured 9±6 (mean±SD) times over 162±198 days, during reduced training following injury or illness. Additionally, body mass (n=15 athletes) and episodes of altitude...

Sensitivity of the Athlete Blood Passport for blood doping could be improved by including total haemoglobin mass (Hb(mass)), but this measure may be unreliable immediately following strenuous exercise. We examined the stability of Hb(mass) following ultra-endurance triathlon (3.8 km swim, 180 km bike, 42.2 km run). 26 male sub-elite triathletes, 18...

We compared changes in performance and total haemoglobin mass (tHb) of elite swimmers in the weeks following either Classic or Live High:Train Low (LHTL) altitude training. Twenty-six elite swimmers (15 male, 11 female, 21.4 ± 2.7 years; mean ± SD) were divided into two groups for 3 weeks of either Classic or LHTL altitude training. Swimming perfor...

The sensitivity of the athlete blood passport to detect blood doping may be improved by the inclusion of total hemoglobin mass (Hb(mass)), but the comparability of Hb(mass) from different laboratories is unknown. To optimize detection sensitivity, the analytical variability associated with Hb(mass) measurement must be minimized. The aim of this stu...

The Athlete Blood Passport is the most recent tool adopted by anti-doping authorities to detect athletes using performance-enhancing drugs such as recombinant human erythropoietin (rhEPO). This strategy relies on detecting abnormal variations in haematological variables caused by doping, against a background of biological and analytical variability...

The purpose of this investigation was to examine the strength, power, and anthropometric contributors to vertical jump performances that are considered specific to volleyball success, including countermovement vertical jump (CMVJ) and spike jump (SPJ), by examining changes across 12 months in elite volleyball players. Anthropometry (height, mass, s...