2015 ISAKOS Biennial Congress ePoster #2610

Reference Body Weight Values in Four Common Sport Activities

Yonatan Kaplan, PhD, MSc(Med), BSc(Physio), Mount Scopus ISRAEL
Jerusalem Sports Medicine Center, Lerner Sports Center, Hebrew University, Jerusalem, ISRAEL

FDA Status Not Applicable

Summary: Elliptical exercise significantly reduces weight-bearing as compared to other common functional and sporting activities.

Abstract:

Introduction

In this original research study, the authors evaluated average percentage body weight (APBW) values and weight-bearing distribution percentages (WBDP) between four common sports activities in a referent adult population

Methods

Four tests were conducted: 1. Overground walking (OGW) over a 20m distance, 2. Overground jogging (OGJ) over a 20m distance, 3. Treadmill jogging (TJ) at a constant speed of 8.5 km/hr for a 15-second interval and 4. Elliptical exercise (EE) for a 20 second period at a resistance and incline level of 10, and a steady pace within the range of 70-95 steps/min.
Results:, The APBW value on the entire foot in OGW was 112% (SD=15.57), in OGJ, 201% (SD= 31.24, in TJ, 175% (SD=25.48) and in EE, 73% (SD=13.8). Regarding WBDP, the swing phase in OGJ and TJ was significantly longer than the stance phase (p<0.05). OGW resulted in significantly less swing phase compared to OGJ and TJ (p<0.05).

Conclusions

EE significantly reduces weight-bearing as compared to other common functional and sporting activities. These findings may assist the rehabilitation team when considering returning individuals back to early activity following certain bony or soft tissue pathologies or lower-limb surgical procedures. This information is also useful from a repetitive loading standpoint (to prevent overuse injury) or for exercise recommendations for those at greater risk for exacerbating chronic joint pathology.