ORIGINAL REPORT
Qiumei LI, MD, MMed
, Liping LIN, MD, MMed, Mengying FANG, BSc, Xiaodong TANG, BSc, Chuyao JIAN, PhD and Shaofeng ZHAO, MD, PhD
From the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
Purpose: To determine the effects of kinesiology taping on reduced limb oedema using shear-wave elastography.
Methods: A randomized trial with concealed allocation and intention-to-treat analysis. Fifty patients with limb oedema were randomly allocated to 2 groups: kinesiology taping at 25% tension applied to the oedematous tissue (25% kinesiology taping), and kinesiology taping at 0% tension applied to the oedematous tissue (0% kinesiology taping). The primary outcome was the elastic coefficient of shear-wave elastography (dermis and adipose layers), and the secondary outcome was limb circumference, which were assessed at days 0, 9, and 16.
Results: Compared with the 0% kinesiology taping at day 9, the 25% kinesiology taping significantly reduced the elastic coefficient of the dermis layer (12.57 kPa, 95% CI 4.97 to 20.16, p = 0.001) and adipose layer (5.29 kPa, 95% CI 2.20 to 8.38, p < 0.001), and the length of limb circumference (2.18 cm, 95% CI 0.79 to 3.56, p < 0.001). The benefits of the dermis layer (p = 0.002) and adipose layer (p = 0.005), and the limb circumference (p < 0.001) were maintained at day 16. These findings demonstrate the sustained biomechanical improvements of oedematous tissues induced by 25% kinesiology taping, providing objective clinical evidence supporting the application of kinesiology taping for limb oedema management.
Conclusion: Kinesiology taping at 25% tension reduces the elastic coefficient and limb circumference of limb oedema. We recommend kinesiology taping as a complementary, synergistic adjunct to limb oedema in patients with severe hyper-dependency.
Severely hyper-dependent patients often suffer from limbs edema, which interferes with their rehabilitation. Kinesiology tape is commonly used, but the benefit of applying the tape with stretch tension remained uncertain. We randomly assigned 50 patients with limb edema to receive either stretched (25% tension) or non‑stretched kinesiology taping. Limb circumference and edematous tissue stiffiness were followed for 16 days. Kinesiology tape applied with appropriate tension effectively reduced edema and softened edematous tissues, and these benefits persisted. This study supports using tension‑adjusted kinesiology taping as an extra rehabilitation measure for limb edema among patients with high care needs.
Key words: kinesiology taping; limb oedema; rehabilitation; severe hyper-dependency; shear-wave elastography.
Citation: J Rehabil Med 2026; 58: jrm44783. DOI: https://doi.org/10.2340/jrm.v58.44783.
Copyright: © 2026 The Author(s). Published by MJS Publishing, on behalf of the Foundation for Rehabilitation Information. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/).
Submitted: Sept 9, 2025; Accepted after revision: Jul 23, 2026; Published: Aug 13, 2026.
Correspondence address: Shaofeng Zhao, Department of Rehabilitation Medicine, the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China. Email: zhaosf1@163.com
Competing interests and funding: The authors declared no potential conflicts of interest concerning the research, authorship, and/or publication of this article.
Shenzhen Medical Research Fund (C2501005). The Eighth Affiliated Hospital Clinical Research Program, Sun Yat-Sen University (PY-2024-03). The National Natural Science Foundation of China (82302881). Futian Healthcare Research Project (FTWS2025016). Futian Healthcare Research Project (FTWS2025033). Futian Healthcare Research Project (FTWS2026035).
Limb oedema is a common complication in patients with severe hyper-dependency (1), commonly arising from factors like reduced physical activity, incorrect limb positioning, low serum albumin levels, renal failure, and cardiac insufficiency (2). The excess fluid accumulates in the interstitial space outside blood vessels, causing limb oedema, and visible depressions in the skin when minimal subcutaneous tissue is pressed with a finger (3). Limb oedema leads to pain, joint contractures, limited range of motion, amyotrophy and skin ulceration (4). These complications of limb oedema affect long-term recovery, causing increased hospitalization costs and extended hospital stays (5, 6).
Kinesiology tape (KT) (Performance Health, Akron, OH, USA) is a new technique of rehabilitation treatment (7), and it has been proposed for early-stage lower extremity oedema and pain (8, 9). This technique makes use of elastic adhesive tape, which is applied to the patient’s skin under tension, and can be extended up to 140% of its original length (7). This tape is a non-invasive and pharmaceutical-free elastic patch with a unique water-ripple acrylic adhesive surface similar to the elasticity of the skin, and does not restrict the range of motion (10, 11). The elastic tape can last for a period of 3–5 days and can be used in water (11). This technique applies unique materials to the skin surface, correcting joint dislocation, providing muscle support, activating the endogenous pain relief system, and promoting lymphatic reflux to eliminate oedema by changing the tensile force and cutting the shape according to the patient’s position to conform to the oedematous limb (7, 12).
KT is an intervention primarily designed to increase the space between the subcutaneous tissues, enhance local circulation, alleviate local inflammatory reactions, and reduce oedema. Although the effects of KT on limb oedema have been reported in patients after knee replacement arthroplasty (13-15) and in advanced cancer (16), the reported findings are inconsistent (17). One possible reason for the discrepancies is the wide range (10–75%) of KT tension reported across the studies. These data indicate that 10–15% tension of KT can reduce limb oedema and pain after knee-joint disease (8, 18). Several randomized trials have examined the functional effect of KT at 25–50% tension (19, 20). But increasing beyond 30% tension led to an immediate increase in pressure sensitivity (21). Recent studies have shown that KT applied at 25% tension is an optimal tension for reducing limb oedema and muscle pain in healthy adults (21, 22). However, the effects of KT at “optimal” tension on limb oedema in patients with severe hyper-dependency have not been determined.
Therefore, our research question for this randomized trial was: What are the relative effects of KT performed at 25% tension and 0% tension on limb oedema in patients with severe hyper-dependency? Specifically, we evaluated the efficacy of limb oedema using the SWE and Gulick anthropometric tape (Fabrication Enterprises Inc., Elmsford, NY, USA) anthropometric tape, comparing pre- and post-treatment in the elastic coefficient and LC between the 25% tension group and the 0% tension group over the post-treatment period.
This prospective, two-arm, randomized trial was conducted with concealed allocation, blinded assessors, and intention-to-treat analysis. Patients who received rehabilitation for limb oedema at the Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, China, between 8 December 2023 and 25 December 2024 and met the eligibility criteria were invited to our study.
Patients were randomly allocated to the KT at 25% tension group or the KT at 0% tension group according to a randomization scheme generated by computer. A physiotherapist who was not involved with the recruitment and treatment of patients randomly selected the blocks for each stratum and generated the final allocation sequence. The allocations were placed in sealed, opaque envelopes and stored in a concealed cabinet. When an eligible patient was recruited, the recruiting physiotherapist contacted the independent researcher to open the envelope and determine the patient’s group assignment. The intervention period was 9 days and the follow-up was 16 days, after which outcomes were measured and analysed. To maintain blinding, the physiotherapists delivering the KT intervention to different groups were conducted at separate times and in separate rooms. Outcome assessments were conducted by a different physiotherapist who was blinded to group allocation.
The eligibility criteria are listed in Box 1. The physiotherapists were extensively trained to deliver the KT intervention and had a minimum of 3 years of clinical experience. All physiotherapists and researchers received standardized training before the trial to ensure procedure consistency.
Inclusion criteria:
Exclusion criteria:
All patients from both groups received the KT reapplied in 3 sessions (3 consecutive days per session), making a total of 9 days. All patients might be discharged from the hospital, return home, or move to another rehabilitation hospital, but KT was discontinued after 9 days of intervention. Therefore, each participant received a total of 3 sessions over 9 days. Detailed procedures for the intervention are provided in a previous publication (25).
25% tension: The KT used a fan-cut KT method, which was cut into a claw-shaped patch from one-third of the patient’s forearm to the middle finger. The application method employed a double lymphatic correction, based on the shape of the finger; each finger was attached using kinesiology tape and applied with a 25% elastic pulling force. Consequently, the glue surface was pushed from the proximal to the distal part of the finger and finally fixed to the tail end without force. Additionally, the 2 claw cloths were staggered to form an adhesive mesh as shown in Fig. 1. Two experienced physical therapists trained in kinesiology taping administered the interventions.

Fig. 1. Image showing the specific application method of kinesiology taping.
0% tension: Patients received the same KT method but without tension (i.e., 0% tension). The glue surface was pushed from the proximal to the distal part of the finger and finally fixed to the tail end without tension. Additionally, the 2 claw cloths were staggered to form an adhesive mesh.
The primary outcome was the elastic coefficient of the dermis and adipose layers, measured by the shear-wave elastography (SWE), as an indicator of limb oedema quantification. The secondary outcomes were limb circumference (LC), measured by the Gulick anthropometric tape. All outcomes were assessed at baseline (day 0), immediately after the 9-day intervention (day 9), and at the end of a 1-week follow-up period (day 16).
SWE: SWE was performed by experienced sonographers using the Mindray Resona 7 (Mindray, China) with an SL15–4 multifrequency linear probe operating at 4–15 MHz. First, a square, coloured ROI was set at the targeted skin and subcutaneous tissue site for SWE data acquisition and superimposed on the B-mode image. The skin stiffness was displayed in colour within the ROI, as shown in Fig. 2A. Second, the superficial and deep margin of the ROI was manipulated to include the gel, skin, and subcutaneous tissue. During the SWE image acquisition, the probe was applied to the gel and maintained for several seconds to ensure that the practitioner obtained stable SWE images. Third, a small, round ROI was drawn within the first square ROI to quantitatively assess the skin and subcutaneous tissue stiffness. The parameters, expressed in kilopascal (kPa), were recorded for each oedematous tissue, as shown in Fig. 2B. The 5 consecutive SWE measurements were performed for each ROI to obtain the average values of the dermis layer and adipose layer. The operation was repeated 3 times, and the final average value of the dermis layer and adipose layer obtained.

Fig. 2. SWE images of skin and subcutaneous tissue. The SWE box was superimposed on the B-mode image to accurately depict the dermis and subcutis. The quantitative skin elastic moduli, including mean, minimum, maximum, and standard deviation, were automatically calculated by the Mindray system and displayed in the picture. (A) are SWE images of normal tissue, (B) SWE images of oedematous tissue.
LC: The LC was recorded using the Gulick anthropometric tape. The Gulick anthropometric tape was wrapped around the midpoint of the palm and the oedema circumference measured, without compressing the oedematous tissue. The LC parameters, expressed in centimetres (cm), were recorded for each oedematous tissue. The operation was repeated 3 times, and the final average value of the oedema circumference obtained.
Continuous variables, including the elastic coefficient of SWE and LC, were expressed as means and standard deviations (SDs). Categorical variables, such as sex, were summarized using descriptive statistics. Multiple imputation (MI) was adopted to handle missing outcome data following the intention-to-treat (ITT) principle. Missing data accounted for 12% and were assumed to be missing at random (MAR). Ten imputed datasets were generated via an imputation model adjusted for demographics, disease duration, and baseline measurements. The analyses were performed on each imputed dataset separately, and pooled estimates were synthesized by Rubin’s rules as previously described (26–28). Baseline characteristic comparisons between groups were conducted to test randomization balance: one-way analysis of variance (ANOVA) and analysis of covariance (ANCOVA) were used for continuous variables, while the χ² test was adopted for categorical variables. Longitudinal outcome changes over day 0, day 9, and day 16 were evaluated via generalized estimating equations (GEE) with robust standard errors, with patient ID specified as the cluster variable and an exchangeable working correlation structure. The pre-specified primary confirmatory analyses were between-group comparisons of all indicators at day 9 and day 16. These 2 sets of core comparisons were regarded as the primary study hypotheses without additional multiple testing correction. Intra-group comparisons of day 9 vs day 0 and day 16 vs day 0 within each group were defined as post-hoc exploratory analyses, and no Bonferroni correction was applied to these exploratory pairwise comparisons.
All statistical tests were two-tailed, with the overall significance threshold set at α = 0.05. Data analysis was conducted using Statistical Package for the Social Sciences (SPSS) software for Windows, version 26 (IBM Corp, Armonk, NY, USA) and R software (version 4.4.1, R Foundation for Statistical Computing, Vienna, Austria). MedCalc software (version 10.4.7.0; MedCalc, Ostend, Belgium) was used to generate box-and-whisker plots. Longitudinal analytical results were reported as pooled mean differences, robust 95% confidence intervals (CIs), and corresponding raw p-values at each time interval.
The required sample size was calculated by comparing the change from baseline to day 9 of intervention in the elastic coefficient using one-way analysis of variance. The standardized effect size was estimated to be 0.91 using our pilot data with preliminary experiment subjects, with a within-group SD of 0.81. With an alpha (α) of 0.05 and a power of 0.80 (β = 0.8), the estimated sample size was 22 participants per group. To account for 15% attrition, we increased the final required sample size to 25 participants per group (total n = 50).
To evaluate the robustness of the findings, sensitivity analysis using distribution-free nonparametric complete case analysis (CCA) was conducted to examine whether the MI-GEE results stemmed from violated normality assumptions.
A total of 50 patients were randomized into 2 groups: 25% tension KT (n = 25) and 0% tension KT (n = 25). At day 9, 50 patients were assessed (100%). At day 16, 6 patients dropped out because of discharge and transfer to another hospital (25% tension: 2; 0% tension: 4). 44 patients were assessed (88% follow-up). The flow of patients through the trial is shown in Fig. 3. The baseline characteristics of the 50 included patients are presented in Table I. The random allocation process produced comparable groups at baseline.

Fig. 3. Design and flow of patients through the trial. SWE: shear wave elastography. LC: limb circumference. ITT: intention-to-treat. MI: multiple interpolation.
| Clinical characteristics | 25% tension KT (n = 25) | 0% tension KT (n = 25) | p-value |
| Age (years), mean (SD) | 66.5 (10.5) | 65.8 (9.9) | 0.719 |
| Sex, n (%) | 0.763 | ||
| Female | 10 (40) | 11 (44) | |
| Male | 15 (60) | 14 (56) | |
| Comorbidities, n (%) | |||
| Low protein | 23(92) | 22(84) | 0.637 |
| Cardiac insufficiency | 11(44) | 14(56) | 0.396 |
| Renal insufficiency | 7(28) | 9(36) | 0.544 |
| Use diuretic | 19(76) | 22(88) | 0.269 |
| Time bedridden (days), n (%) | 0.848 | ||
| < 2 weeks | 5 (20) | 4 (16) | |
| 2–4 weeks | 13 (52) | 15 (60) | |
| > 4 weeks | 7 (28) | 6 (24) | |
| Therapy site, n (%) | 0.490 | ||
| EICU | 9 (36) | 13 (52) | |
| RICU | 5 (20) | 3 (12) | |
| ICU | 11 (44) | 9 (36) | |
| Principal diagnosis, n (%) | 0.601 | ||
| Cerebrovascular disease | 15 (60) | 17 (68) | |
| Heart disease | 2 (8) | 3 (12) | |
| Lung disease | 8 (32) | 5 (20) | |
| Elastic coefficient of SWE (kPa), mean (SD) | |||
| Dermis layer | 31.4 (17.4) | 28.9 (19.5) | 0.479 |
| Adipose layer | 19.5 (7.5) | 17.7 (7.9) | 0.399 |
| LC (mm), mean (SD) | 23.7 (2.4) | 23.6 (2.3) | 0.954 |
| EICU: emergency intensive care unit; ICU: intensive care unit; RICU: respiratory intensive care unit; SWE: shear wave elastography; TDU: two-dimensional ultrasound; LC: limb circumference. aValues are represented as numbers (%) unless otherwise stated. Means and standard deviations (SDs) are based on the total baseline sample. |
|||
Compared with the 0% tension KT group, 9 days of 25% tension KT reduced the elastic coefficient of the dermis layer by 12.57 kPa (95% CI 4.97 to 20.16, p = 0.001). The elastic coefficient of the adipose layer reduced the same outcomes by 5.29 kPa (95% CI 2.20 to 8.38, p < 0.001). At day 16, all the benefits of 25% tension KT were maintained. 25% tension KT was clearly more beneficial than 0% tension KT on all elastic coefficients of the dermis layer (95% CI 4.12 to 18.73, P = 0.002) and adipose layer (95% CI 1.33 to 7.25, p = 0.005). The effect sizes indicating the actual between-group difference are highly substantial with strong clinical and practical significance (Table II). The comparison of the results is shown in Fig. 4.
| Item | Pairwise comparison, AMD (95 % CIs), Bonferroni-adjusted p-value | |||||
| 25% tension KT (n = 25) vs 0% tension KT (n = 25) | ||||||
| SWE (kPa) | LC (cm) | |||||
| Dermis layer | p-value | Adipose layer | p-value | p-value | ||
| 9 days | 12.57(4.97, 20.16) | 0.001 | 5.29(2.20, 8.38) | < 0.001 | 2.18(0.79, 3.56) | < 0.001 |
| 16 days | 11.43(4.12, 18.73) | 0.002 | 4.29(1.33, 7.25) | 0.005 | 2.63(1.44, 3.83) | < 0.001 |
| ES | 1.92a 0.87b |
1.01a 0.80b |
1.01a 1.22b |
|||
| AMD: adjusted mean difference; CI: confidence interval; LC: limb circumference; p-value: Bonferroni-adjusted p-value; SWE: shear-wave elastography; KT: kinesiology taping; ES: effect size, use of Cohen’s d; aeffect size at day 9 between groups; beffect size at day 16 between groups. | ||||||

Fig. 4. (A) Box plot of SWE-dermis layer elasticity coefficient between the 25% tension group and the 0% tension group. (B) Box plot of SWE-adipose layer elasticity coefficient between the 25% tension group and the 0% tension group.
Compared with the 0% tension KT group, 9 days of 25% tension KT reduced LC by a mean of 2.18 cm (95% CI 0.79 to 3.56, p < 0.001), and this effect was largely maintained at 16 days (95% CI 1.44 to 3.83, p < 0.001). The effect sizes indicate that the actual between-group difference is substantial, with strong clinical and practical significance (see Table II). The comparison of the results is shown in Fig. 5.

Fig. 5. Box plot of LC between the KT group and the control group.
Intra-group comparisons between each follow-up time point and baseline were exploratory post-hoc analyses without multiple testing correction. All indicators presented a decreasing trend over time in the experimental group, whereas no notable temporal variations were detected in the control group. Detailed statistical results are available in Table III.
| Item | Change from baseline, AMD (95 % CI) | |||||
| 25% tension KT (n = 25) | 0% tension KT (n = 25) | |||||
| SWE | LC | SWE | LC | |||
| Dermis layer | Adipose layer | Dermis layer | Adipose layer | |||
| 9 days | 14.76(9.56, 19.97) | 8.00(5.21, 10.80) | 2.62(1.68, 3.57) | 0.27(–3.13, 3.68) | –0.89(–2.53, 0.74) | –0.43(–1.06, 0.19) |
| 16 days | 16.49(10.81, 22.17) | 8.05(5.23, 10.86) | 3.48(2.73, 4.23) | –2.60(–2.62, 7.81) | –1.94(–4.58, 0.70) | –0.83(–2.14, 0.48) |
| Pbonferroni | <0.001a <0.001b |
<0.001a <0.001b |
<0.001a <0.001b |
0.875a 0.325b |
0.282a 0.149b |
0.176a 0.212b |
| AMD: adjusted mean difference; CI: confidence interval; LC: limb circumference; SWE: shear-wave elastography; KT: kinesiology taping; ap-value between day 9 and the baseline; bp-value between day 16 and the baseline. | ||||||
Sensitivity analyses confirmed that the direction and magnitude of KT effects were consistent with the intention-to-treat analysis, and statistical significance was largely maintained, indicating that the main findings were robust despite the missing data (Table IV).
| Analysis | Mean (SD) 25% tension vs 0% tension | p-value | |
| 9-day | 16-day | ||
| MI-GEE (MAR-PMM) | |||
| Dermis layer | 16.62(10.02) vs 29.19(17.05) | 14.89(8.30) vs 26.32 (14.83) | 0.001a <0.001b |
| Sdipose layer | 11.50(3.15) vs 16.79(6.87) | 11.46(3.33) vs 15.75(6.29) | <0.001a 0.002b |
| LC | 21.04(2.18) vs 23.21(2.22) | 20.18(1.58) vs 22.81(2.48) | 0.005a < 0.001b |
| Complete case analysis (CCA) | |||
| Dermis layer | 16.61 (10.46) vs 31.02 (17.38) | 14.27 (7.52) vs 26.65 (15.12) | 0.002a 0.002b |
| Adipose layer | 11.44 (3.16) vs 17.53 (7.19) | 11.27 (3.06) vs 16.02 (6.43) | 0.001a 0.005b |
| LC | 20.96 (2.25) vs 23.08 (2.21) | 20.15 (1.58) vs 22.90 (2.51) | 0.001a <0.001b |
| MI-GEE: Multiple Imputation combined with Generalized Estimating Equations; CCA: complete case analysis; SD: standard deviation; CI: confidence interval; LC: limb circumference; MI: multiple imputation; MAR: missing at random; PMM: pattern mixed model; KT: kinesiology taping; ap-value between day 9 and the baseline; bp-value between day 16 and the baseline. |
|||
In our study, no serious adverse events related to the intervention were observed. Two cases of reddening of skin in the 25% tension KT group were reported, and 1 occurred in the 0% tension KT group. There was no significant difference between the groups (p = 0.862; Table V).
| Item | Kinesiology taping group (n = 25) | Sham Kinesiology taping group (n = 25) |
| Overall* | 2(8.7) | 1(4.8) |
| Serious adverse event | 0(0) | 0(0) |
| Adverse event | 2(8.7) | 1(4.8) |
| Rubefaction | 2(8.7) | 1(4.8) |
| Skin allergy | 0(0) | 0(0) |
| Skin inflamed | 0(0) | 0(0) |
| Skin lacerations | 0(0) | 0(0) |
| Data are n (%). aAn adverse event with multiple occurrences in a single participant was defined as 1 adverse event. *Fisher’s exact test was used to analyse adverse events between the 2 groups (p = 0.862). | ||
Our study aimed to compare the training efficacy of a KT protocol at 25% tension in people with severe hyper-dependency, using 0% tension KT as a control group. The results showed that 25% tension KT significantly reduced the elastic coefficient of dermis and adipose layers and LC compared with the 0% tension KT group. Subsequently, these benefits were maintained during the 16-day post-intervention follow-up, with the greatest improvements consistently observed in the 25% tension KT group.
In agreement with other reports, 25% tension KT treating reduced limb oedema (19). Horoz et al. reported similar benefits with KT over 10 days in patients with distal radius fractures, showing reductions in arm and trunk oedema (25). Several randomized trials illustrated that 10–15% tension of KT can reduce limb oedema after knee-joint disease (8, 18). Notably, Huang et al. suggested that 15% tension KT did not reduce the limb oedema in patient with stroke (12). The improvement in SWE and LC observed in our study may be explained by the training intensity of 25% tension KT because it has been reported that limb oedema at 25% tension KT is associated with the greatest increase in the space between the subcutaneous tissues, with enhancement of local circulation and alleviation of local inflammatory reactions (21). The greater improvement with 25% tension KT may also be due to increased superficial fascia activation and provided circulatory/lymphatic correction, and mechanical support (29–31).
Peripheral compression in addition to muscle facilitation techniques of KT had positive impacts on limb oedema (32). The positive effects of compression stockings on oedema has been reported in patients with limb oedema (33, 34). Previous studies emphasizing benefits of peripheral compression showed that mixed a KT compression model reduced limb oedema (35, 32). In addition, some data that compared the effects of KT and compression therapy in postmastectomy lymphoedema patients found no significant difference between KT and compression therapy for limb oedema (36, 37). In particular, the study by Tantawy et al. demonstrated that KT resulted in significant amelioration of limb oedema in comparison with compression garments 3 weeks post treatment (38). Several studies have suggested that the fan-shaped technique of KT was better than compression therapy for pain and oedema reduction in patients with breast-cancer-related lymphoedema (38, 39). Tantawy and Pajero Otero et al. claimed that compression therapy failed to decrease oedema as efficiently as fan-shaped technique of KT due to low duration of usage of compression garments and pressure changes in compression garments in time (38, 39). Therefore, the findings of our study are in accordance with these results.
The primary outcome, SWE, is a two-dimensional performance-based assessment tool that provides insight into the dynamic balance dimensions of limb oedema (40). The SWE can also be used to monitor the progression of oedema tissue during therapy (41). Comparative studies of SWE and oedema extent showed that oedematous tissue directly correlates with the thickness and stiffness (42). The SWE can assess the increased thickness and stiffness of oedematous tissue and pressure within the tissues due to tissue oedema. Consequently, SWE parameters appear valuable for evaluating limb oedema in patients with severe hyper-dependency. Future studies can utilize SWE to assess the dynamic changes in oedema pre- and post-treatment.
The deterioration in physical quality of life in patients with severe hyper-dependency is more associated with a complicated condition than the existence of limb oedema. However, despite this, KT treatment improved the physical dimension of the quality of life through reducing pain and limb oedema, due to greatest increase in the space between the subcutaneous tissues, enhanced local circulation, and alleviated local inflammatory reactions. Therefore, for hyper-dependency patients, KT techniques increased superficial fascia activation and provided circulatory/lymphatic correction, and mechanical support of oedematous tissue. This kind of support of limb oedema probably enabled improvement in functional capacity and thus quality of life for the patients.
Some (12%) of our cohort failed to present at the 16-day follow-up assessment. This confounded our evaluation of the sustained effect of KT at day 16. However, despite this, we were able to demonstrate that the SWE and LC of our remaining cohort were maintained at 16 days beyond the end of the intervention. These findings support KT in rehabilitation protocols for patients with limb oedema with severe hyper-dependency. Further studies on long-term and continuing KT effects are warranted.
In conclusion, KT performed at 25% tension significantly reduced the elastic coefficient of dermis and adipose layers and the LC. Treating on a 25% tension confers larger magnitude benefits over KT on a 0% tension and reduced the limb oedema. Many of these benefits are maintained for up to 16 days beyond the intervention period. We recommend early application of KT as part of a multidisciplinary approach to managing limb oedema in patients with severe hyper-dependency. Future larger-scale trials are warranted to confirm its effectiveness and investigate the underlying mechanisms.
The authors would like to thank the Department of Critical Care Medicine at the Eighth Affiliated Hospital of Sun Yat-sen University (Shenzhen, China) and the Department of Ultrasound for their collaboration and support during this study. They would also like to thank the Eighth Affiliated Hospital of Sun Yat-sen University for funding this study and for providing the necessary equipment and facilities for the intervention.
Author contributions: conceptualization, Qiumei Li and Shaofeng Zhao; methodology, Qiumei Li; software, Qiumei Li; validation, Chuyao Jian; formal analysis, Qiumei Li; investigation, Mengying Fang and Xiaodong Tang; resources, Xiaodong Tang and Mengying Fang; data curation, Liping Lin; writing – original draft preparation, Qiumei Li and Liping Lin; writing – review and editing, Qiumei Li; visualization, Shaofeng Zhao; supervision, Qiumei Li; project administration, Shaofeng Zhao; funding acquisition, Shaofeng Zhao.
Ethical considerations: The study was a single-blind, randomized controlled trial registered with the Chinese Clinical Trials Registry (#ChiCTR2300079323) and approved by the hospital’s Ethics Committee (#2023-101-02).
Trial registration: Chinese Clinical Trials Registry (#ChiCTR2300079323).
Written informed consent: The study was approved by the hospital’s Ethics Committee (Ethical Clearance Reference Number: #2023-101-02) on 26 December 2023. All participants provided written informed consent prior to participating.
Consent for publication: Consent for publication was included in the patient’s hospital record.
Data availability statement: The data that support the findings of this study are available from the corresponding author, SFZ, upon reasonable request.