Background: Altered lower limb movement patterns (LLMP) during the forward step down (FSD) test have been studied in people suffering from knee instability. However, ankle dorsiflexion range of motion (ADROM) seems to be related to LLMP but no causal inference has been defined between those variables.
Objective: Our goals were to evaluate (1) psychometric quality of the FSD test in healthy people and (2) the influence of experimental restricted ADROM on LLMP.
Methods: Kinematics were measured by a motion capture system. Angular displacement and speed were calculated as well as center of mass (COM) and knee linear displacement. Forty-two healthy participants; firstly, performed the test three times to assess reliability, and secondly the same test in an experimental condition limiting the ADROM.
Results: Reliability was excellent for all parameters (ICC: 0.75-0.99, SEM%: 2.0-34.0%). ADROM limitation significantly decreased Knee flexion range of motion (ROM) (-3.8∘), increased Hip flexion ROM (6∘), Hip adduction ROM (6.1∘), Pelvis drop ROM (3.5∘), Pelvic rotation ROM (3.1∘). No significant effect was found for Hip rotation ROM.
Conclusions: LLMP was affected by this experimental ADROM limitation in healthy people. As this limitation is often encountered in post-traumatic ankle sprain patients, clinicians should consider this point during FSD assessment test.
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http://dx.doi.org/10.3233/BMR-171063 | DOI Listing |
J Appl Physiol (1985)
January 2025
Experimental Biomechanics Group, Institute of Structural Mechanics and Dynamics in Aerospace Engineering, Faculty of Aerospace Engineering and Geodesy, University of Stuttgart, Germany.
Characterizing individual muscle behavior is crucial for understanding joint function and adaptations to exercise, diseases, or aging. Shear wave elastography (SWE) is a promising tool for measuring the intrinsic material properties of muscle. This study assessed the passive and active shear modulus of the triceps surae muscle group in 14 volunteers (7 females, 25.
View Article and Find Full Text PDFBMJ Open
January 2025
College of Medicine and Dentistry, James Cook University, Queensland Research Centre for Peripheral Vascular Disease, Townsville, Queensland, Australia.
Introduction: Patients with peripheral artery disease (PAD) can experience intermittent claudication, which limits walking capacity and the ability to undertake daily activities. While exercise therapy is an established way to improve walking capacity in people with PAD, it is not feasible in all patients. Neuromuscular electrical stimulation (NMES) provides a way to passively induce repeated muscle contractions and has been widely used as a therapy for chronic conditions that limit functional capacity.
View Article and Find Full Text PDFJ Clin Med
January 2025
Department of Rehabilitation, Oita Oka Hospital, Oita 870-0105, Japan.
This study aimed to examine the impact of early postoperative physical therapy combined with an educational program on wound recurrence and quality of life in patients with foot ulcers. Forty-eight postoperative patients with diabetic foot ulcers were randomly assigned to either an intervention group, which received both physical therapy and an educational program ( = 25), or a control group, which received physical therapy only ( = 23). Each intervention was initiated on the day after surgery in both groups.
View Article and Find Full Text PDFClin Biomech (Bristol)
January 2025
Department of Physical Education, Yonsei University, Republic of Korea. Electronic address:
Background: We aimed to synthesize the kinematics and kinetics during landing and walking/running tasks of ankle copers compared with patients with chronic ankle instability and controls.
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Bioengineering (Basel)
January 2025
Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR 999077, China.
: Falls and fall consequences in older adults are global health issues. Previous studies have compared postural sways or stepping strategies between older adults with and without fall histories to identify factors associated with falls. However, more in-depth neuromuscular/kinematic mechanisms have remained unclear.
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