2017

Footwear Science, 9:sup1, S122-S124

Bipedal in-shoe kinetics of skateboarding – the ollie

Aliaksandr Leuchanka, Joanne Ewen and Ben Cooper

VF Global Innovation Center, Dover

Schlagwörter

impact forces, footwear, skateboarding, biomechanics, bipedal

impact forces, footwear, skateboarding, biomechanics, bipedal

Zusammenfassung

Introduction Skateboarding is a globally participated and popular sport with a reported participation of over 11 million in the United States alone (SGMA, 2007). Published epidemiological studies have stated the significant incidence of musculoskeletal injuries associated with skateboarding (Frederick, Determan, Whittlesey, & Hamill, 2006). The inherent nature of skateboarding makes it difficult to quantify using standard laboratory methods. In-field protocols have been attempted to quantify the metabolic demands of the activity, while only partial segments of a given movement have been quantified from a biomechanics perspective (Frederick et al., 2006; Hetzler, Hunt, Stickley, & Kimura, 2011). Therefore, unique methods of testing are necessary to develop a complete understanding behind the basic movements of skateboarding. Purpose of the study The purpose of this pilot study was to quantify the basic skateboarding manoeuvre of the ollie using novel methods and technology in the athlete’s own environment. Methods Four experienced male skateboarders participated in this pilot study. Each subject wore identical Vans Authentic footwear, but used their own skateboard throughout thedata collection. Each subject was tasked with performing an ollie under three randomized conditions: (1) standing ollie (SO); (2) rolling ollie (RO); (3) ollie down (OD). The OD manoeuvre was performed utilizing a 36.0-cm platform. OpenGo (Moticon GmbH, Munich, Germany) wireless sensor insoles were utilized to continuously record underfoot forces at 50 Hz. Each insole contains 13 pressure sensors with a specified load range of 0–40 N cm¡2 along with an accelerometer. To ensure a similar fit in the footwear, the production insoles were replaced with the OpenGo insoles during the data collection. Statistical comparisons were made using a single-factor ANOVA (a D 0.05). Results The average peak take-off forces during an SO, RO and OD were 2.47 § 0.38 BWs, 2.55 § 0.51 BWs and 2.34 § 0.32 BWs, respectively. Average peak landing forces of the SO, RO and OD were 2.40 § 0.33 BWs, 2.71 § 0.23 BWs and 3.15 § 0.51 BWs, respectively. Pressure distribution during take-off and landing was centred around the medial forefoot in sensors 0, 2 and 3 shown in Figure 1. Discussion and conclusion The measured take-off forces were similar to previous studies that evaluated the impact forces from an ollie movement (Frederick et al., 2006; Nevitt, Determan, Cox, & Frederick, 2008). The landing forces in our findings were different when compared to previous literature (Nevitt et al., 2008). Nevitt et al. compared landing forces from various platform heights for the OD manoeuvre, while forces of 3.15 § 0.51 BWs when landing from a height of 36.0 cm we found in this pilot study, they do not compare to the 4.61 § 0.80 BWs from a platform of 22.9 cm. Previous literature on skateboarding forces utilized force plates to determine the force measurements for the whole system. It is critical to keep in mind that the board, bushings and wheels of the skateboard, as well as the footwear may provide for shock attenuation. As shown in Figure 2, the OpenGo system differentiates itself by providing for force measurements underneath each foot without the need for a tethered data logger on either the distal limb or waist of the subject (St€oggl & Mariner, 2016) The unique methods of data collection in this pilot study allow the subject to perform in his or her given environment without external influence from testing equipment. This pilot study reveals that skaters experience significant forces underfoot while having the various factors of shock attenuation. Future investigation in the roleof shock attenuation of the skateboard and footwear would be useful to footwear and skateboard manufacturers. Disclosure statement No potential conflict of interest was reported by the authors.

Moticon's Schlussfolgerungen

Skateboarding, with over 11 million participants in the US alone, is associated with significant musculoskeletal injuries. Standard laboratory methods struggle to quantify skateboarding movements, necessitating innovative testing methods. This pilot study aimed to quantify the ollie maneuver using novel technology in a natural setting. Four experienced skateboarders performed three types of ollies: standing, rolling, and from a platform, while wearing OpenGo wireless sensor insoles that recorded impact forces at the foot. The results showed that peak take-off forces were similar across all conditions, but landing forces were highest when ollieing down from a platform. Pressure distribution was centered around the medial forefoot. The study found notable differences in landing forces compared to previous research, highlighting the impact of skateboard and footwear on shock attenuation. The novel in-field methods allowed natural performance without external influences, suggesting potential benefits for future research and product development in skateboard and footwear design.

Kontaktiere uns
Buche eine kostenlose Online-Demo oder verwende das Kontaktformular, um mit uns in Kontakt zu treten.
Newsletter
Trage Dich in unseren Newsletter ein, um regelmäßige Updates zu erhalten
Verwendete Produkte von Moticon

Select your desired system

The cutting edge test based outcome assessment system for health professionals and trainers

The most versatile toolkit for free data acquisition and comprehensive analytics in research

Have a general inquiry?

Write us a message for general questions about products and solutions or if you’d like to discuss other topics.


Wähle Deine Produktelinie

Mobile Ganganalysen und sportmotorische Tests für Trainer und Therapeuten – objektiv und effizient.

Das flexible System für freie Datenerfassung und fortgeschrittene Analysen in der Forschung.

Du möchtest eine Anfrage stellen?

Schreibe uns eine Nachricht zu allgemeinen Fragen über Produkte oder zu anwendungsbezogenen Themen, die Du besprechen möchtest.


Das Formular wurde erfolgreich gesendet.

Wir werden uns in Kürze mit dir in Verbindung setzen.

moticon-rego-sensor-insole-live-event

Immer einen Schritt voraus!

Abonniere unseren Newsletter für die neuesten Informationen zu Fallstudien, Webinaren, Produkt-Updates und Neuigkeiten bei Moticon

Hole dir Unterstützung

Finde Antworten zu den häufigsten Fragen in unseren FAQ

Beschreibe Dein Problem so detailliert wie möglich. Hänge Screenshots oder Daten an, sofern das hilfreich ist.


Need help?
Want a live demo?
Interested in prices?
Want to say hello?
Always just a call away
+49 89 2000 301 60
Du brauchst Unterstützung?
Du möchtest eine Live Demo?
Interessiert an Preisen?
Du hast Fragen?
Nur einen Anruf entfernt
+49 89 2000 301 60

The form was sent successfully.

You will be contacted shortly.

Get support

Check our FAQ database for answers to frequently asked questions

Describe your issue in as much detail as possible. Include screenshots or files if applicable.