Abstract
Context: Clinically, lowering of the medial longitudinal arch is believed to be closely related to rearfoot eversion. However, the relationship between arch height and rearfoot eversion during gait is unclear. Objectives: (1) To examine the influence of 2 reference positions (weight-bearing neutral position [WBNP] and subtalar neutral position [STNP]) on maximum rearfoot eversion, tibial internal rotation, knee flexion, knee internal rotation, and dorsiflexion-plantar flexion of ankle joint measures during jogging and (2) to compare the relationships among static arch height, navicular drop, and the 2 maximum rearfoot eversion measures. Design: Crossover study. Setting: Gait laboratory. Patients or Other Participants: Thirty-three volunteers between 18 and 40 years of age. Intervention(s): Each participant stood on the treadmill in 2 static positions: WBNP and STNP. Kinematic data were obtained using a 10-camera motion analysis system (120 Hz) when participants jogged at 2.65 m/s on the treadmill in bare feet. Main Outcome Measure(s): Rearfoot and shank angular kinematics, navicular drop, and static arch height. Results: Maximum rearfoot eversion was greater (WBNP: 4.03°±2.58°, STNP: 10.91°±5.34°) when STNP was the static reference (P<.001). A strong correlation was seen between maximum STNP eversion and navicular drop (r= 0.842) but not between WBNP and navicular drop (r=0.216). Differences were noted in dorsiflexion and knee kinematics during gait between the static references; however, the effect sizes were low, and the mean differences were smaller than 2°, which was less than 5% of total excursion during gait. Conclusions: Using STNP rather than WBNP as the reference position affects estimates of frontal-plane rearfoot movement but not other ankle or knee motions in jogging.
| Original language | English |
|---|---|
| Pages (from-to) | 83-90 |
| Number of pages | 8 |
| Journal | Journal of Athletic Training |
| Volume | 47 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2012 Jan 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation
Cite this
}
Arch height and maximum rearfoot eversion during jogging in 2 static neutral positions. / Lee, Sae Yong; Hertel, Jay.
In: Journal of Athletic Training, Vol. 47, No. 1, 01.01.2012, p. 83-90.Research output: Contribution to journal › Article
TY - JOUR
T1 - Arch height and maximum rearfoot eversion during jogging in 2 static neutral positions
AU - Lee, Sae Yong
AU - Hertel, Jay
PY - 2012/1/1
Y1 - 2012/1/1
N2 - Context: Clinically, lowering of the medial longitudinal arch is believed to be closely related to rearfoot eversion. However, the relationship between arch height and rearfoot eversion during gait is unclear. Objectives: (1) To examine the influence of 2 reference positions (weight-bearing neutral position [WBNP] and subtalar neutral position [STNP]) on maximum rearfoot eversion, tibial internal rotation, knee flexion, knee internal rotation, and dorsiflexion-plantar flexion of ankle joint measures during jogging and (2) to compare the relationships among static arch height, navicular drop, and the 2 maximum rearfoot eversion measures. Design: Crossover study. Setting: Gait laboratory. Patients or Other Participants: Thirty-three volunteers between 18 and 40 years of age. Intervention(s): Each participant stood on the treadmill in 2 static positions: WBNP and STNP. Kinematic data were obtained using a 10-camera motion analysis system (120 Hz) when participants jogged at 2.65 m/s on the treadmill in bare feet. Main Outcome Measure(s): Rearfoot and shank angular kinematics, navicular drop, and static arch height. Results: Maximum rearfoot eversion was greater (WBNP: 4.03°±2.58°, STNP: 10.91°±5.34°) when STNP was the static reference (P<.001). A strong correlation was seen between maximum STNP eversion and navicular drop (r= 0.842) but not between WBNP and navicular drop (r=0.216). Differences were noted in dorsiflexion and knee kinematics during gait between the static references; however, the effect sizes were low, and the mean differences were smaller than 2°, which was less than 5% of total excursion during gait. Conclusions: Using STNP rather than WBNP as the reference position affects estimates of frontal-plane rearfoot movement but not other ankle or knee motions in jogging.
AB - Context: Clinically, lowering of the medial longitudinal arch is believed to be closely related to rearfoot eversion. However, the relationship between arch height and rearfoot eversion during gait is unclear. Objectives: (1) To examine the influence of 2 reference positions (weight-bearing neutral position [WBNP] and subtalar neutral position [STNP]) on maximum rearfoot eversion, tibial internal rotation, knee flexion, knee internal rotation, and dorsiflexion-plantar flexion of ankle joint measures during jogging and (2) to compare the relationships among static arch height, navicular drop, and the 2 maximum rearfoot eversion measures. Design: Crossover study. Setting: Gait laboratory. Patients or Other Participants: Thirty-three volunteers between 18 and 40 years of age. Intervention(s): Each participant stood on the treadmill in 2 static positions: WBNP and STNP. Kinematic data were obtained using a 10-camera motion analysis system (120 Hz) when participants jogged at 2.65 m/s on the treadmill in bare feet. Main Outcome Measure(s): Rearfoot and shank angular kinematics, navicular drop, and static arch height. Results: Maximum rearfoot eversion was greater (WBNP: 4.03°±2.58°, STNP: 10.91°±5.34°) when STNP was the static reference (P<.001). A strong correlation was seen between maximum STNP eversion and navicular drop (r= 0.842) but not between WBNP and navicular drop (r=0.216). Differences were noted in dorsiflexion and knee kinematics during gait between the static references; however, the effect sizes were low, and the mean differences were smaller than 2°, which was less than 5% of total excursion during gait. Conclusions: Using STNP rather than WBNP as the reference position affects estimates of frontal-plane rearfoot movement but not other ankle or knee motions in jogging.
UR - http://www.scopus.com/inward/record.url?scp=84859224028&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859224028&partnerID=8YFLogxK
U2 - 10.4085/1062-6050-47.1.83
DO - 10.4085/1062-6050-47.1.83
M3 - Article
C2 - 22488234
AN - SCOPUS:84859224028
VL - 47
SP - 83
EP - 90
JO - Journal of Athletic Training
JF - Journal of Athletic Training
SN - 1062-6050
IS - 1
ER -