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Trunk and Lower Extremity Kinematics During Stair Descent in Women With or Without Patellofemoral Pain.
J Athl Train 2015; 50(7):704-12JA

Abstract

CONTEXT

There is limited evidence indicating the contribution of trunk kinematics to patellofemoral pain (PFP). A better understanding of the interaction between trunk and lower extremity kinematics in this population may provide new avenues for interventions to treat PFP.

OBJECTIVE

To compare trunk and lower extremity kinematics between participants with PFP and healthy controls during a stair-descent task.

DESIGN

Cross-sectional study.

SETTING

Research laboratory.

PATIENTS OR OTHER PARTICIPANTS

Twenty women with PFP (age = 22.2 ± 3.1 years, height = 164.5 ± 9.2 cm, mass = 63.5 ± 13.6 kg) and 20 healthy women (age = 21.0 ± 2.6 years, height = 164.5 ± 7.1 cm, mass = 63.8 ± 12.7 kg).

INTERVENTION(S)

Kinematics were recorded as participants performed stair descent at a controlled velocity.

MAIN OUTCOME MEASURE(S)

Three-dimensional joint displacement of the trunk, hip, and knee during the stance phase of stair descent for the affected leg was measured using a 7-camera infrared optical motion-capture system. Pretest and posttest pain were assessed using a visual analogue scale. Kinematic differences between groups were determined using independent-samples t tests. A 2 × 2 mixed-model analysis of variance (group = PFP, control; time = pretest, posttest) was used to compare knee pain.

RESULTS

We observed greater knee internal-rotation displacement for the PFP group (12.8° ± 7.2°) as compared with the control group (8.9° ± 4.4°). No other between-groups differences were observed for the trunk, hip, or other knee variables.

CONCLUSIONS

We observed no difference in trunk kinematics between groups but did note differences in knee internal-rotation displacement. These findings contribute to the current knowledge of altered movement in those with PFP and provide direction for exercise interventions.

Authors+Show Affiliations

The College of William and Mary, Williamsburg, VA;Sports Medicine Research Laboratory, Georgia State University, Atlanta;Sports Medicine Research Laboratory.Neuromuscular Research Laboratory, and.Department of Exercise and Sport Science, The University of North Carolina at Chapel Hill.Sports Medicine Research Laboratory.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

25898109

Citation

Schwane, Brandi G., et al. "Trunk and Lower Extremity Kinematics During Stair Descent in Women With or Without Patellofemoral Pain." Journal of Athletic Training, vol. 50, no. 7, 2015, pp. 704-12.
Schwane BG, Goerger BM, Goto S, et al. Trunk and Lower Extremity Kinematics During Stair Descent in Women With or Without Patellofemoral Pain. J Athl Train. 2015;50(7):704-12.
Schwane, B. G., Goerger, B. M., Goto, S., Blackburn, J. T., Aguilar, A. J., & Padua, D. A. (2015). Trunk and Lower Extremity Kinematics During Stair Descent in Women With or Without Patellofemoral Pain. Journal of Athletic Training, 50(7), pp. 704-12. doi:10.4085/1062-6050-49.3.100.
Schwane BG, et al. Trunk and Lower Extremity Kinematics During Stair Descent in Women With or Without Patellofemoral Pain. J Athl Train. 2015;50(7):704-12. PubMed PMID: 25898109.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Trunk and Lower Extremity Kinematics During Stair Descent in Women With or Without Patellofemoral Pain. AU - Schwane,Brandi G, AU - Goerger,Benjamin M, AU - Goto,Shiho, AU - Blackburn,J Troy, AU - Aguilar,Alain J, AU - Padua,Darin A, Y1 - 2015/04/21/ PY - 2015/4/22/entrez PY - 2015/4/22/pubmed PY - 2016/2/9/medline KW - anterior knee pain KW - knee internal rotation KW - neuromuscular control SP - 704 EP - 12 JF - Journal of athletic training JO - J Athl Train VL - 50 IS - 7 N2 - CONTEXT: There is limited evidence indicating the contribution of trunk kinematics to patellofemoral pain (PFP). A better understanding of the interaction between trunk and lower extremity kinematics in this population may provide new avenues for interventions to treat PFP. OBJECTIVE: To compare trunk and lower extremity kinematics between participants with PFP and healthy controls during a stair-descent task. DESIGN: Cross-sectional study. SETTING: Research laboratory. PATIENTS OR OTHER PARTICIPANTS: Twenty women with PFP (age = 22.2 ± 3.1 years, height = 164.5 ± 9.2 cm, mass = 63.5 ± 13.6 kg) and 20 healthy women (age = 21.0 ± 2.6 years, height = 164.5 ± 7.1 cm, mass = 63.8 ± 12.7 kg). INTERVENTION(S): Kinematics were recorded as participants performed stair descent at a controlled velocity. MAIN OUTCOME MEASURE(S): Three-dimensional joint displacement of the trunk, hip, and knee during the stance phase of stair descent for the affected leg was measured using a 7-camera infrared optical motion-capture system. Pretest and posttest pain were assessed using a visual analogue scale. Kinematic differences between groups were determined using independent-samples t tests. A 2 × 2 mixed-model analysis of variance (group = PFP, control; time = pretest, posttest) was used to compare knee pain. RESULTS: We observed greater knee internal-rotation displacement for the PFP group (12.8° ± 7.2°) as compared with the control group (8.9° ± 4.4°). No other between-groups differences were observed for the trunk, hip, or other knee variables. CONCLUSIONS: We observed no difference in trunk kinematics between groups but did note differences in knee internal-rotation displacement. These findings contribute to the current knowledge of altered movement in those with PFP and provide direction for exercise interventions. SN - 1938-162X UR - https://www.unboundmedicine.com/medline/citation/25898109/Trunk_and_Lower_Extremity_Kinematics_During_Stair_Descent_in_Women_With_or_Without_Patellofemoral_Pain_ L2 - https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25898109/ DB - PRIME DP - Unbound Medicine ER -