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Recreational runners

Tong-Hsien Chow, Yih-Shyuan Chen, Jia-Chang Wang
BACKGROUND: Plantar pressure measurement is effective for assessing plantar loading and can be applied to evaluating foot performance. We sought to explore the characteristics of plantar pressures in elite sprinters and recreational runners during static standing and walking. METHODS: Arch index (AI) values, regional plantar pressure distributions (PPDs), and footprint characteristics were examined in 80 elite sprinters and 90 recreational runners using an optical plantar pressure measurement system...
January 2018: Journal of the American Podiatric Medical Association
Michael J Saunders, Nicholas D Luden, Cash R DeWitt, Melinda C Gross, Amanda Dillon Rios
The effects of protein supplementation on the ratings of energy/fatigue, muscle soreness [ascending (A) and descending (D) stairs], and serum creatine kinase levels following a marathon run were examined. Variables were compared between recreational male and female runners ingesting carbohydrate + protein (CP) during the run (CPDuring , n = 8) versus those that were consuming carbohydrate (CHODuring, n = 8). In a second study, outcomes were compared between subjects who consumed CP or CHO immediately following exercise [CPPost ( n = 4) versus CHOPost ( n = 4)]...
March 10, 2018: Nutrients
Michael Wilkinson, Alistair Ewen, Nicholas Caplan, David O'Leary, Neil Smith, Richard Stoneham, Lee Saxby
The effect of textured insoles on kinetics and kinematics of overground running was assessed. 16 male injury-free-recreational runners attended a single visit (age 23 ± 5 yrs; stature 1.78 ± 0.06 m; mass 72.6 ± 9.2 kg). Overground 15-m runs were completed in flat, canvas plimsolls both with and without textured insoles at self-selected velocity on an indoor track in an order that was balanced among participants. Average vertical loading rate and peak vertical force (Fpeak ) were captured by force platforms...
March 12, 2018: European Journal of Sport Science
Daniel Ramskov, Sten Rasmussen, Henrik Sørensen, Erik Thorlund Parner, Martin Lind, Rasmus Oestergaard Nielsen
Background/aim: The Run Clever trial investigated if there was a difference in injury occurrence across two running schedules, focusing on progression in volume of running intensity (Sch-I) or in total running volume (Sch-V). It was hypothesised that 15% more runners with a focus on progression in volume of running intensity would sustain an injury compared with runners with a focus on progression in total running volume. Methods: Healthy recreational runners were included and randomly allocated to Sch-I or Sch-V...
2018: BMJ Open Sport & Exercise Medicine
Christoph Zinner, Daniela Schäfer Olstad, Billy Sperlich
PURPOSE: The aim was to compare mesocycles with progressively increasing workloads and varied training intensity distribution (TID), i.e. high-intensity (HIGH, > 4 mmol·L blood lactate), low-intensity (LOW, < 2 mmol·L blood lactate) or a combination of HIGH and LOW (referred to as "polarized", POL) on 5000-m running time and key components of endurance performance in recreational runners. METHODS: Forty-two runners (peak oxygen uptake (VO2peak): 45...
March 5, 2018: Medicine and Science in Sports and Exercise
Yunes Nadim Hammad, Abigail Johnson, Alan Norrish
Medial tibial stress syndrome and chronic osteomyelitis are conditions that are traditionally thought to affect very different patient groups. We present a case of shin splints in a recreational long-distance runner, complicated by chronic osteomyelitis of the tibia. This is a unique case in which the microtrauma resulting from shin splints was implicated as an entry point for bacterial infection into the bone. Clinical evaluation and bone biopsy culture results indicated haematogenous spread of bacteria originating from the oral cavity...
March 1, 2018: BMJ Case Reports
Tzu-Chieh Liao, Joyce H Keyak, Christopher M Powers
The purpose of this study is to determine whether recreational runners with patellofemoral pain (PFP) exhibit greater peak patella cartilage stress compared to pain-free runners. A secondary purpose was to determine the kinematic and/or kinetic predictors of peak patella cartilage stress during running. Twenty-two female recreational runners participated (12 with PFP and 10 pain-free controls). Patella cartilage stress profiles were quantified using subject-specific finite element models simulating the maximum knee flexion angle during stance phase of running...
February 27, 2018: Journal of Applied Biomechanics
Rodolfo André Dellagrana, Mateus Rossato, Raphael Luiz Sakugawa, Bruno Mafredini Baroni, Fernando Diefenthaeler
This study was aimed at verifying effects of photobiomodulation therapy (PBMT) with different energy doses (15, 30, and 60 J per site) on physiological and performance parameters during running tests. Fifteen male recreational runners participated in a crossover, randomised, double-blind, and placebo-controlled trial. They performed testing protocol in 5 sessions with different treatments: control, placebo, and PBMT with 15, 30 or 60 J per site (14 sites in each lower limb). Physiological and performance variables were assessed during submaximal (at 8 km·h-1 and 9 km·h-1) and maximal running tests...
February 22, 2018: Journal of Strength and Conditioning Research
Bruna Calazans Luz, Ana Flávia Dos Santos, Mariana Carvalho de Souza, Tatiana de Oliveira Sato, Deborah A Nawoczenski, Fábio Viadanna Serrão
BACKGROUND: Patellofemoral pain (PFP) is the most common running overuse injury. Excessive rearfoot eversion is commonly considered as a PFP risk factor and the relationship between ankle-foot complex movement and lower limb may be involved with this dysfunction. The purpose of this study was to evaluate the correlation between rearfoot eversion with tibia and femur kinematics in frontal and transverse planes during running in individuals with and without PFP. The secondary purpose was to compare the lower limb kinematics between runners with and without PFP...
February 12, 2018: Gait & Posture
Christian Maurer, Sebastian Heller, Jil-Julia Sure, Daniel Fuchs, Christoph Mickel, Eileen M Wanke, David A Groneberg, Daniela Ohlendorf
OBJECTIVE: The influence of the jaw position on postural control, body posture, walking and running pattern has been reported in the literature. All these movements have in common that a relatively small, but well controlled muscle activation is required. The induced effects on motor output through changed jaw positions have been small. Therefore, it has been questioned if it could still be observed in maximal muscle activation. METHOD: Twenty-three healthy, mid age recreational runners (mean age = 34...
2018: PloS One
Urtats Etxegarai, Ainhoa Insunza, Jon Larruskain, Jordan Santos-Concejero, Susana M Gil, Eva Portillo, Jon Irazusta
We investigated whether heart rate (HR)-derived parameters are accurate performance predictors in endurance recreational runners. One hundred thirty recreational athletes completed an incremental running test (4´running + 1´rest). After each stage, we recorded HR, % of maximum HR (%HRmax), and blood lactate. We also assessed HR after each recovery period, and calculated lactate and HR recovery thresholds and HR deflection point. We tested these parameters for associations with running performance, as measured by peak treadmill speed (PTS) and personal best International Association of Athletics Federations (IAAF) score...
February 23, 2018: Journal of Sports Sciences
Michael S Orendurff, Toshiki Kobayashi, Kirsten Tulchin-Francis, Ann Marie Herring Tullock, Chris Villarosa, Charles Chan, Siobhan Strike
There appears a linear relationship between small increases in running speed and cardiovascular health benefits. Encouraging or coaching recreational runners to increase their running speed to derive these health benefits might be more effective if their joint level kinematic and kinetic strategy was understood. The aim of this investigation was to compare the peak sagittal plane motions, moments, and powers of the hip, knee and ankle at 85%, 100%, 115% and 130% of self-selected running speed. Overground running data were collected in 12 recreational runners (6 women, 6 men) with a full body marker set using a 12-camera Vicon MX system with an AMTI force plate...
February 10, 2018: Journal of Biomechanics
James S Hogg, James G Hopker, Sarah L Coakley, Alexis R Mauger
PURPOSE: The self-paced maximal oxygen uptake test (SPV) may offer effective training prescription metrics for athletes. This study aimed to examine whether SPV-derived data could be used for training prescription. METHODS: Twenty-four recreationally active male and female runners were randomly assigned between two training groups: (1) Standardised (STND) and (2) Self-Paced (S-P). Participants completed 4 running sessions a week using a global positioning system-enabled (GPS) watch: 2 × interval sessions; 1 × recovery run; and 1 × tempo run...
February 12, 2018: European Journal of Applied Physiology
Ulrich Weber, Anne Grethe Jurik, Anna Zejden, Ejnar Larsen, Steen Hylgaard Jørgensen, Kaspar Rufibach, Christian Schioldan, Søren Schmidt-Olsen
OBJECTIVE: Low grade bone marrow edema (BME) was reported in the sacroiliac joints (SIJ) of 25% of healthy individuals and mechanical back pain patients, challenging the imaging discrimination from early spondyloarthritis (SpA). It is unknown whether stress injury in competition sports may trigger BME. We explored frequency and anatomical distribution of SIJ MRI lesions in recreational and elite athletes. METHODS: After pre-test calibration, semicoronal SIJ MRI scans of 20 recreational runners (RR) before/after running and 22 elite ice-hockey players (IP) were assessed by 3 blinded readers for BME and structural lesions using an SIJ quadrant-based module...
February 12, 2018: Arthritis & Rheumatology
(no author information available yet)
No abstract text is available yet for this article.
February 2018: Physiological Reports
David N Borg, John O Osborne, Ian B Stewart, Joseph T Costello, Jesse N L Sims, Geoffrey M Minett
OBJECTIVES: This study aimed to determine the reliability of 10 and 20km cycling time trial (TT) performance on the Velotron Pro in recreational cyclists, runners and intermittent-sprint based team sport athletes, with and without a familiarisation. DESIGN: Thirty-one male, recreationally active athletes completed four 10 or 20km cycling TTs on different days. METHODS: During cycling, power output, speed and cadence were recorded at 23Hz, and heart rate and rating of perceived exertion (RPE) were recorded every km...
January 26, 2018: Journal of Science and Medicine in Sport
Karsten Hollander, Antje Baumann, Astrid Zech, Evert Verhagen
Objectives: While the health benefits of running are legitimately advocated, participation in running can also lead to health problems. There is a high range of reported prevalence rates especially of running-related overuse injuries in high-level athletes and during competition. Little consensus exists for acute injuries and illnesses especially in recreational runners. Therefore, the aim of this study was to record the prevalence of health problems in recreational long-distance runners preparing for an event...
2018: BMJ Open Sport & Exercise Medicine
Tim Bonham, Gillian V Pepper, Daniel Nettle
Background: Although people generally feel more positive and more energetic in the aftermath of exercise than before, longitudinal research on how exercise relates to within-person fluctuations in affect over the course of everyday life is still relatively limited. One constraint on doing such research is the need to provide participants with accelerometers to objectively record their exercise, and pagers to capture affective reports. Aims: We aimed to develop a methodology for studying affect and exercise using only technology that participants already possess, namely GPS running watches and smartphones...
2018: PeerJ
Marcus D Dunn, David B Claxton, Graham Fletcher, Jonathan S Wheat, David M Binney
Injury risk is an important concern for runners; however, limited evidence exists regarding changes to injury risk following running style retraining. Biomechanical factors, such as absolute peak free moment, knee abduction impulse, peak foot eversion and foot eversion excursion, have been shown to predict lower limb injury. The aim of this study was to assess the effects of Pose running retraining on biomechanical factors associated with lower limb running injury. Twenty uninjured recreational runners were pair-matched based on their five km run time performance and randomly assigned to control (n = 10) and intervention (three 2-h Pose running retraining sessions) groups (n = 10)...
January 12, 2018: Human Movement Science
Christian Mitschke, Pierre Kiesewetter, Thomas L Milani
Previous studies have used accelerometers with various operating ranges (ORs) when measuring biomechanical parameters. However, it is still unclear whether ORs influence the accuracy of running parameters, and whether the different stiffnesses of footwear midsoles influence this accuracy. The purpose of the present study was to systematically investigate the influence of OR on the accuracy of stride length, running velocity, and on peak tibial acceleration. Twenty-one recreational heel strike runners ran on a 15-m indoor track at self-selected running speeds in three footwear conditions (low to high midsole stiffness)...
January 5, 2018: Sensors
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