[논문]The Effect of Calf Stiffness on Gait, Foot Pressure and Balance in Adults

Lee, JeonHyeong; Chang, JongSung

doi:10.18857/jkpt.2019.31.6.346

The Effect of Calf Stiffness on Gait, Foot Pressure and Balance in Adults 원문보기

Journal of Korean Physical Therapy : JKPT = 대한물리치료학회지, v.31 no.6, 2019년, pp.346 - 350

Lee, JeonHyeong (Department of Physical Therapy, Daegu Health College) , Chang, JongSung (Department of Physical Therapy, Yeungnam University College)

Abstract ▼ AI-Helper

Purpose: The purpose of this study was to investigate the effects of calf tightness on gait, plantar pressure, and balance in adults. Methods: A total of 60 participants were divided into a normal group of 30 subjects with normal dorsiflexion angle (20-25 degrees) and an experimental group of 30 subjects with limited dorsiflexion angle (0-15 degrees) due to calf tightness. Gait ability and foot pressure of the subjects was measured with a treadmill, and the balance ability was measured by PROKIN system. Results: A significant difference in COP length, loading response, and single limb support was observed between groups. The COP length and single limb support ratio in the normal group was greater than in the experimental group, but the experimental group showed a higher ratio for loading response in the gait ratio. Conclusion: Our results indicated that calf tightness was negative effects on balance and gait ability, so assessment of the muscle tightness should be considered during exercise and treatment.

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문제 정의

And the detailed results of clinical features are effective in selecting more efficient and effective interventions. Therefore, this study aims to investigate the effects of calf tightness on gait, plantar pressure, and balance in adults.

제안 방법

The subjects of this study were selected from students attending D University located in D city and those with no specific disease in the musculoskeletal and nervous systems and those with no pain in the leg were selected. A total of 60 participants selected were divided into a normal group of 30 subjects with angles of joint motion that did not limit dorsiflexion (20-25 degrees) and an experimental group of 30 subjects with angles of joint motion that limited dorsiflexion (0-15 degrees) due to calf tightness, and then they underwent the experiment. Because Elveru et al.
In order to analyze the plantar pressure and the gait, pressure movement and general characteristics of gait were measured. Plantar pressure measurement is widely used because it can measure the distribution of pressure applied to the foot and the trajectory path of the center of the body by using the pressure on the foot and gait evaluation can be performed on the treadmill without locational constraints.
The subject was instructed to place their feet on the measuring instrument equipped with sensors in a standing position, to look straight ahead at the target line, and to maintain the posture not to fall for 10 seconds. The balance measurement was taken three times for 10 seconds each time and the average value was used for analysis.
A goniometer that measures the angle of movement of each joint in the human body was used to determine whether the subject’s dorsiflexion was limited or not. The subject was seated on the bed with their leg being extended without touching the ground and was instructed to relax their ankle joint and to maintain a 90 degrees neutral position. Next, while the axis was placed on the outer malleolus and the stationary arm was placed on the fibular, the moving arm was placed in the side line of the sole of the foot relative to the fifth toe.
While the measurement was taken, the subject wore a safety clip device that can automatically stop the machine when they fall around their waist for the safety of the subject. To evaluate the gait capacity data, stride length, step width, COP length, stride time, cadence, and gait rate were analyzed and compared between groups.

대상 데이터

A total of 60 subjects were enrolled either an experimental group (15 men and 15 women) or a control group (15 men and 15 women). Table 1 display the gender, age, height, and weight of the groups.
The subjects of this study were selected from students attending D University located in D city and those with no specific disease in the musculoskeletal and nervous systems and those with no pain in the leg were selected. A total of 60 participants selected were divided into a normal group of 30 subjects with angles of joint motion that did not limit dorsiflexion (20-25 degrees) and an experimental group of 30 subjects with angles of joint motion that limited dorsiflexion (0-15 degrees) due to calf tightness, and then they underwent the experiment.

데이터처리

, Chicago) for windows. An independent t-test was performed to compare the changes in gait, plantar pressure, and balance capacity values between groups after confirming normality with the Shapiro-Wilks test. The statistical significance was accepted for p-values of less than 0.

성능/효과

Comparison of the gait rate between groups, a significant difference in loading response and single limb support was observed (p<0.05), but no significant difference was found for pre-swing and swing phase (p>0.05)(Table 2).
The results of the group analysis show that there were no significantly differences between two groups in height and weight (p> 0.05).
^19,20 In this study, the effects of limited dorsiflexion due to calf tightness on gait capacity, plantar pressure, and balance capacity wer e compared and analyzed. The results revealed that in the category of gait capacity, the center of pressure (COP) length and the single limb support ratio were higher in the normal group, while the loading response was higher in the experimental group. However, no differences between groups were found in balance capacity.

후속연구

Calf tightness was negative effects on balance and gait ability, so assessment of the muscle tightness should be considered during exercise and treatment. In the future further studies are needed to explore the relationship between calf tightness and balance or gait ability in a wide spectrum of subjects with different ages.

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