Physical Demands Analysis: A Critique of Current Tools

2004 ◽  
pp. 435-482
Keyword(s):  
Physical Demands

Intersession reliability of GPS-based and accelerometer-based physical variables in small-sided games with and without the offside rule

2021 ◽  
pp. 175433712098764
Author(s):  
Igor Junio de Oliveira Custódio ◽  
Gibson Moreira Praça ◽  
Leandro Vinhas de Paula ◽  
Sarah da Glória Teles Bredt ◽  
Fabio Yuzo Nakamura ◽  
...  
Keyword(s):  
Root Mean Square ◽  
Global Positioning System ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Mean Square ◽  
Physical Demands ◽  
Intraclass Correlation Coefficients ◽  
Total Distance ◽  
Global Positioning ◽  
High Level

This study aimed to analyze the intersession reliability of global positioning system (GPS-based) distances and accelerometer-based (acceleration) variables in small-sided soccer games (SSG) with and without the offside rule, as well as compare variables between the tasks. Twenty-four high-level U-17 soccer athletes played 3 versus 3 (plus goalkeepers) SSG in two formats (with and without the offside rule). SSG were performed on eight consecutive weeks (4 weeks for each group), twice a week. The physical demands were recorded using a GPS with an embedded triaxial accelerometer. GPS-based variables (total distance, average speed, and distances covered at different speeds) and accelerometer-based variables (Player Load™, root mean square of the acceleration recorded in each movement axis, and the root mean square of resultant acceleration) were calculated. Results showed that the inclusion of the offside rule reduced the total distance covered (large effect) and the distances covered at moderate speed zones (7–12.9 km/h – moderate effect; 13–17.9 km/h – large effect). In both SSG formats, GPS-based variables presented good to excellent reliability (intraclass correlation coefficients – ICC > 0.62) and accelerometer-based variables presented excellent reliability (ICC values > 0.89). Based on the results of this study, the offside rule decreases the physical demand of 3 versus 3 SSG and the physical demands required in these SSG present high intersession reliability.

Physical demands of game-based training drills in women’s team handball

2017 ◽  
Vol 36 (5) ◽  
pp. 592-598 ◽  
Author(s):  
Live S. Luteberget ◽  
Hege P. Trollerud ◽  
Matt Spencer
Keyword(s):  
Physical Demands ◽  
Team Handball

Combined Task and Physical Demands Analyses towards a Comprehensive Human Work Model

2014 ◽  
Vol 58 (1) ◽  
pp. 939-943 ◽  
Author(s):  
Philip S. E. Farrell ◽  
David W. Tack ◽  
Edward T. Nakaza ◽  
Jordan Bray-Miners ◽  
Cristopher M. Farrell
Keyword(s):  
Physical Demands ◽  
Work Model

scholarly journals Activity Profiles of Soccer Players During the 2010 World Cup

2013 ◽  
Vol 38 ◽  
pp. 201-211 ◽  
Author(s):  
Filipe Manuel Clemente ◽  
Micael Santos Couceiro ◽  
Fernando Manuel Lourenço Martins ◽  
Monika Ognyanova Ivanova ◽  
Rui Mendes
Keyword(s):  
High Activity ◽  
Soccer Players ◽  
Activity Time ◽  
Activity Profile ◽  
World Cup ◽  
Physical Demands ◽  
Fifa World Cup ◽  
Medium Activity ◽  
The Mean ◽  
Low Activity

Abstract The main objective of this study was to analyse the distance covered and the activity profile that players presented at the FIFA World Cup in 2010. Complementarily, the distance covered by each team within the same competition was analysed. For the purposes of this study 443 players were analysed, of which 35 were goalkeepers, 84 were external defenders, 77 were central defenders, 182 were midfielders, and 65 were forwards. Afterwards, a thorough analysis was performed on 16 teams that reached the group stage, 8 teams that achieved the round of 16, 4 teams that reached the quarter-finals, and 4 teams that qualified for the semi-finals and finals. A comparison of the mean distance covered per minute among the playing positions showed statistically significant differences (F(4,438) = 559.283; p < 0.001; 2 = 0.836; Power = 1.00). A comparison of the activity time among tactical positions also resulted in statistically significant differences, specifically, low activity (F(4,183.371) = 1476.844; p < 0.001; 2 = 0.742; Power = 1.00), medium activity (F(4,183.370) = 1408.106; p < 0.001; 2 = 0.731; Power = 1.00), and high activity (F(4,182.861) = 1152.508; p < 0.001; 2 = 0.703; Power = 1.00). Comparing the mean distance covered by teams, differences that are not statistically significant were observed (F(3,9.651) = 4.337; p < 0.035; 2 = 0.206; Power = 0.541). In conclusion, the tactical positions of the players and their specific tasks influence the activity profile and physical demands during a match.

Age- and gender-specific normative data of pinch strengths in a healthy Turkish population

2011 ◽  
Vol 37 (5) ◽  
pp. 436-446 ◽  
Author(s):  
Ü. Ugurlu ◽  
H. Özdogan
Keyword(s):  
Normative Data ◽  
Turkish Population ◽  
Curvilinear Relationship ◽  
Age And Gender ◽  
Physical Demands ◽  
And Gender ◽  
Gender Specific

It has been demonstrated that normative data of pinch strengths (PSs) vary among healthy populations. Data from 838 participants (420 women and 418 men) aged 15–96 years were analyzed to develop normative data of PSs for a healthy Turkish population and to analyze changes in the means according to the physical demands of participants’ jobs. Lateral, palmar, and tip-to-tip pinch strengths were measured in standard manners. Occupations were classified based on the descriptions in the Dictionary of Occupational Titles. Mean PSs peaked between the ages of 30–50 years in general and increased a small amount in parallel with the increasing strength ratings of the occupations. PS changes followed a curvilinear relationship to age. The differences between our findings and those of similar studies in this field emphasize the importance of using normative data specific to a particular population.

Physical Demands and Performance Indicators in Male Professional Cyclists During a Grand Tour: WorldTour Versus ProTeam Category

2021 ◽  
pp. 1-9
Author(s):  
Xabier Muriel ◽  
Pedro L. Valenzuela ◽  
Manuel Mateo-March ◽  
Jesús G. Pallarés ◽  
Alejandro Lucia ◽  
...  
Keyword(s):  
Power Output ◽  
Performance Indicators ◽  
Cycling Performance ◽  
Threshold Power ◽  
Grand Tour ◽  
Physical Demands ◽  
Physical Demand ◽  
Stress Score ◽  
And Performance ◽  
Training Stress

Purpose: To compare the physical demands and performance indicators of male professional cyclists of 2 different categories (Union Cycliste Internationale WorldTour [WT] and ProTeam [PT]) during a cycling grand tour. Methods: A WT team (n = 8, 31.4 [5.4] y) and a PT team (n = 7, 26.9 [3.3] y) that completed “La Vuelta 2020” volunteered to participate. Participants’ power output (PO) was registered, and measures of physical demand and physiological performance (kilojoules spent, training stress score, time spent at different PO bands/zones, and mean maximal PO [MMP] for different exertion durations) were computed. Results: WT achieved a higher final individual position than PT (31 [interquartile range = 33] vs 71 [59], P = .004). WT cyclists showed higher mean PO and kilojoule values than their PT peers and spent more time at high-intensity PO values (>5.25 W·kg−1) and zones (91%–120% of individualized functional threshold power) (Ps < .05). Although no differences were found for MMP values in the overall analysis (P > .05), subanalyses revealed that the between-groups gap increased through the race, with WT cyclists reaching higher MMP values for ≥5-minute efforts in the second and third weeks (Ps < .05). Conclusions: Despite the multifactorial nature of cycling performance, WT cyclists spend more time at high intensities and show higher kilojoules and mean PO than their PT referents during a grand tour. Although the highest MMP values attained during the whole race might not differentiate between WT and PT cyclists, the former achieve higher MMP values as the race progresses.

Injury incidence and locomotor behaviours in polocrosse ponies

2020 ◽  
Vol 16 (1) ◽  
pp. 29-33 ◽  
Author(s):  
K. Yarnell ◽  
G. Starbuck ◽  
A. Riley ◽  
A. Woodhead
Keyword(s):  
Injury Risk ◽  
Gps Data ◽  
Injury Incidence ◽  
Limited Information ◽  
Physical Demands ◽  
The United Kingdom ◽  
Injury Risk Factors ◽  
Training Programmes ◽  
The Uk ◽  
Type Of Injury

There is currently limited information available regarding the physical demands of polocrosse and no information on the specific veterinary problems faced by polocrosse ponies in the United Kingdom. Polocrosse requires the ponies that compete to perform rapid acceleration, sharp turns and sudden halts. The study aim was to explore the injury incidence and type of injury, between the three positions played by polocrosse ponies. Injuries that resulted in withdrawal of a pony during outdoor tournaments in the UK over the 2015 and 2016 seasons were recorded. In addition, GPS data and locomotor behaviours were recorded during winter league tournaments in 2017 and compared between the different position ponies. Ponies that played in the defence position were significantly more likely to become injured (P<0.001) with lameness being the most common cause for withdrawal (P<0.001). Ponies playing in the attack position achieved the fastest speeds and covered the furthest distance. Defence ponies performed significantly more abrupt halts (P=0.007), walk to gallop transitions (P=0.017) and sudden changes in direction (P=0.01) than midfield ponies and more of each manoeuvre than attack ponies, although this was not significant. It is important that the physical demands placed upon polocrosse ponies are investigated further; this will allow identification of injury risk factors, inform training programmes and improve the performance and welfare of the horses involved.

Upper extremity muscle activity during household floor vacuuming with upright cleaners

2018 ◽  
Vol 62 (1) ◽  
pp. 1018-1021
Author(s):  
Haerim Bak ◽  
Clive D’Souza ◽  
Gwanseob Shin
Keyword(s):  
Upper Extremity ◽  
Muscle Activity ◽  
Maximum Voluntary Contraction ◽  
Voluntary Contraction ◽  
Activity Levels ◽  
Physical Demands ◽  
Study Results ◽  
Musculoskeletal Problems ◽  
Muscle Groups ◽  
Intensive Work

Physical demands of household carpet vacuuming and associated risks for musculoskeletal problems have received little attention although the level of muscle exertions is often assumed to be similar to that of occupational vacuuming. The aim of this study was to quantitatively assess the level of muscle activities of the upper extremity during carpeted floor vacuuming with household upright vacuum cleaners. Eighteen participants conducted four different carpet vacuuming tasks with two different cleaner models. Electromyography data from seven upper extremity muscles were collected. Median muscle activity ranged from 4.5% to 47.5% of the maximum voluntary contraction capacity for female participants and from 2.7% to 23.6% for male participants. Normalized muscle activity levels were significantly higher in women compared to men across tasks and muscle groups. Study results suggest that home vacuuming with upright vacuum cleaners is physically intensive work, especially for female users who are less physically capable.

Activity profiles and physical demands of elite women's water polo match play

2009 ◽  
Vol 27 (10) ◽  
pp. 1095-1104 ◽  
Author(s):  
Frankie Tan ◽  
Ted Polglaze ◽  
Brian Dawson
Keyword(s):  
Match Play ◽  
Physical Demands ◽  
Water Polo
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