International journal of sports physiology and performance Impact Factor & Information

Publisher: Human Kinetics (Organization), Human Kinetics

Current impact factor: 2.66

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 2.662
2013 Impact Factor 2.683
2012 Impact Factor 2.247
2011 Impact Factor 1.796

Impact factor over time

Impact factor

Additional details

5-year impact 3.47
Cited half-life 4.00
Immediacy index 0.65
Eigenfactor 0.00
Article influence 0.78
Website International Journal of Sports Physiology and Performance website
Other titles International journal of sports physiology and performance, IJSPP
ISSN 1555-0265
OCLC 58426616
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publisher details

Human Kinetics

  • Pre-print
    • Archiving status unclear
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Author's post-print only (in PDF or other image capture format)
    • On the author's personal website(s) or institutional repository
    • Publisher's version/PDF cannot be used
    • Publisher copyright and source must be acknowledged
    • Must link to publisher version
    • Set statement to accompany deposit "as accepted for publication"
    • Publisher last contacted on 05/12/2013
  • Classification

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Purpose: To identify whether there were any significant differences in the lower-body muscle structure, and countermovement jump (CMJ) and squat jump (SJ) performance between stronger and weaker surfing athletes. Methods: Twenty elite male surfers had their lower-body muscle structure assessed with ultrasonography, and completed a series of lower-body strength and jump tests including; isometric mid-thigh pull (IMTP), CMJ and SJ. Athletes were separated into stronger (n=10) and weaker (n=10) groups based on IMTP performance. Results: Large significant differences were identified between the groups for vastus lateralis (VL) thickness (p=0.02; ES=1.22) and lateral gastrocnemius (LG) pennation angle (p=0.01; ES=1.20), and a large non-significant difference was identified in LG thickness (p=0.08; ES=0.89). Furthermore, significant differences were present between the groups for peak force, relative peak force, and jump height in the CMJ and SJ (p<0.01-0.05, ES=0.90-1.47), and eccentric peak velocity, as well as vertical displacement of the centre of mass during the CMJ (p<0.01, ES=1.40-1.41). Conclusion: Stronger surfing athletes in this study possessed greater VL and LG thickness, and increased LG pennation angle. These muscle structures may explain the better performance in the CMJ and SJ. A unique finding in this study was the stronger group appeared to better utilize their strength and muscle structure for braking as they had significantly higher eccentric peak velocity and vertical displacement during the CMJ. This enhanced eccentric phase may have resulted in a greater production and subsequent utilization of stored elastic strain energy that led to the significantly better CMJ performance in the stronger group.
    International journal of sports physiology and performance 11/2015; DOI:10.1123/ijspp.2015-0481
  • [Show abstract] [Hide abstract]
    ABSTRACT: The aim of the present study was to investigate the hormonal, physiological and physical responses of simulated kickboxing competition and evaluate if there was a difference between winners and losers. Twenty athletes of regional and national level participated in the study (mean±SD; age: 21.3±2.7yrs; height: 170.0±5.0cm). Hormones [cortisol, testosterone, growth hormone (GH)], blood lactate [La] and glucose concentrations, as well as upper-body Wingate test, countermovement jump (CMJ) performances were measured before and after combats. Heart rate (HR) was measured throughout rounds (R) R1, R2 and R3 and rating of perceived exertion (RPE) was taken after each one. All combats were recorded and analysed to determine the length of different activity phases (high-intensity, low-intensity and referee pause) and the frequency of techniques. Hormones, glucose, [La], HR, and RPE increased (all P <.001) pre-to-post combat, while a decrease was observed for CMJ, Wingate test performance, body mass (all P <.001) and time of high-intensity activities (P =.005). There was no difference between winners and losers for hormonal, physiological and physical variables (P >.05). However, winners executed more jab-cross, total punches, roundhouse kicks, total kicks and total attacking techniques (all P <.042) compared to losers. Kickboxing is an intermittent physically demanding sport inducing changes in the stress-related hormones soliciting the anaerobic lactic system. Training should be orientated to enhance kickboxers' anaerobic lactic fitness and their ability to strike at a sufficient rate. Further investigation is needed to identify possible differences in tactical and mental abilities that offer some insight into what makes winners "winners".
    International journal of sports physiology and performance 09/2015; DOI:10.1123/ijspp.2015-0052
  • [Show abstract] [Hide abstract]
    ABSTRACT: Purpose: We determined the intra- and inter-session (e.g., within-day and between-day) reliability in treadmill sprinting performance outcomes and associated running mechanics. Methods: After familiarization, thirteen male recreational sportsmen (team- and racket-sport background) performed on an instrumented treadmill three 5-s sprints with 2 min recovery on three different days, 5-7 days apart. Intra-session (comparison of the 3 sprints of the first session) and inter-session (comparison of the average of the three sprints across days) reliability of performance, kinetics and kinematics and spring-mass variables were assessed by intraclass correlation coefficients (ICCs) and coefficients of variation (CV%). Results: Intra-session reliability was high (ICC > 0.94 and CV < 8%). Inter-session reliability was 'good' for performance indices (0.83 < ICC < 0.89 and CV < 10%, yet with larger variability for mean velocity compared to distance covered or propulsive power) and kinetic parameters (ICC > 0.94 and CV < 5%, yet with larger variability for mean horizontal forces compared to mean vertical forces) and ranged between 'good' and 'high' for all kinematic (0.88 < ICC < 0.95 and CV ≤ 3.5%) and spring-mass variables (0.86 < ICC < 0.99 and CV ≤ 6.5%). Compared to intra-session, minimal detectable differences were on average twice larger for inter-session designs, except for sprint kinetics. Conclusion: Instrumented treadmill sprint offers a reliable method of assessing running mechanics during single sprints either performed on the same session or between days.
    International journal of sports physiology and performance 09/2015; DOI:10.1123/ijspp.2015-0145
  • [Show abstract] [Hide abstract]
    ABSTRACT: To assess the effects of acute L-carnosine and β-alanine (Carn-BA) supplementation on isometric and dynamic tasks. Twelve healthy participants performed knee extensors maximal voluntary contractions (MVC) and countermovement jumps (CMJ) before and after a fatiguing protocol (45s continuous CMJ). Isometric and dynamic tests were performed four hours after Carn-BA (2g of L-carnosine and 2g of β-alanine) or placebo (PLA) ingestion, in random order. After the fatiguing protocol, blood lactate concentration ([La-]), general and muscular rate of perceived exertion (RPE), and muscular pain (after 24h and 48h from the end of the fatiguing protocol) were assessed. During the fatiguing protocol, significant decreases in jump height, and increases in contact time were found in both groups from the 15th second onwards to the end of the fatiguing protocol. Average contact time and jump height were respectively lower (-7%; P=0.018) and higher (+6%; P=0.025) in Carn-BA compared to PLA. After the fatiguing protocol, MVC decreased in both PLA and Carn-BA, but it was higher in Carn-BA compared to PLA (+15%, P=0.012), while CMJ did not change. Moreover, general RPE was lower and muscle pain at 24h was higher in Carn-BA compared to PLA, whereas muscular RPE and [La-] did not differ between conditions. Ingesting Carn-BA prior to exercise induced positive effects on MVC and CMJ after the fatiguing protocol and improved CMJ performance during the 45s continuous jumping effort, even when acutely supplemented. Furthermore, Carn-BA reduced the general RPE and increased muscular pain 24 h after the fatiguing task.
    International journal of sports physiology and performance 08/2015; DOI:10.1123/ijspp.2014-0507
  • [Show abstract] [Hide abstract]
    ABSTRACT: No abstract available for this article.
    International journal of sports physiology and performance 08/2015; 10(6):673. DOI:10.1123/IJSPP.2015-0439