Physical Therapy in Sport最新文献

Objective

The aim of the present study is to 1) the effect of exacerbating patellofemoral pain (PFP) on dynamic knee valgus (DKV) 2) the relationship between exacerbating PFP and DKV in females with patellofemoral pain.

Design

Cross-sectional study.

Methods

Sixty women with PFP were recruited from the orthopedic clinics. We evaluated pain intensity and DKV in two conditions without (condition 1) and with (condition 2) PFJ loading during the single-leg squat (SLS) task. The MANOVA test was used to compare pain intensity and DKV angle between the two conditions. Furthermore, the Pearson correlation was used to examine the correlation between pain intensity with DKV angle.

Results

The MANOVA analysis showed that pain intensity (P < 0.000, η2 = 0.623) and DKV angle (P < 0.000, η2 = 0.544) with a medium effect size significantly increased after PFJ loading. Furthermore, an excellent positive correlation was observed between an increase in pain intensity and DKV angle (P < 0.000, r = 0.840).

Conclusion

It seems that after the PFJ loading protocol and the subsequent pain exacerbation, the neuromuscular biomechanics of the lower limb are deficits. As a result, the stabilizing muscles activation decreases and increases the lower limb movement in the frontal plane.

Objective

Evaluate the efficacy of five common blood flow restriction (BFR) systems to accurately maintain and autoregulate BFR pressure in the tourniquet cuff near target pressure throughout exercise.

Design

Randomised crossover design.

Setting

Laboratory.

Participants

15 healthy individuals.

Outcome measures

1) Percentage of total BFR time that surgical-grade tourniquet autoregulation, defined as automatic and rapid self-regulation of cuff pressure to within ±15 mmHg of initial target pressure within 1 s in the presence of transient pressure changes associated with exercise, was provided; 2) pressure change in the BFR cuff throughout exercise, by comparing the initial target pressure to the measured pressure at completion of BFR exercise.

Results

One BFR system could provide surgical-grade tourniquet autoregulation for the whole duration (100 ± 0%) of the BFR exercise in all subjects. In two of the five BFR systems evaluated, measured cuff pressure at the end of exercise was not different (p < 0.05) to the initial target pressure.

Conclusions

Surgical-grade tourniquet autoregulation is important to consistently and reliably apply a targeted BFR pressure stimulus. This may allow BFR methodology and protocols to be accurately implemented and controlled so that the results can be more meaningfully compared, leading to the potential optimization of applications.

Objectives

To record the time-loss injuries of female rink hockey players and describe the affected region, tissue, and onset of injury.

Design

Cross-sectional survey study.

Setting

First (Ok Liga) and Second (Plata) division clubs. Participants: 280 player-seasons.

Main outcome measures

Incidence of overall, training, and match injuries (number of injuries per 1000 h) from two seasons.

Results

A total of 229 injuries occurred in 56,438 h of exposure. The overall incidence was 4 injuries per 1000 h (4/1000 h), with a significantly higher rate of injuries during matches (15.2/1000 h) compared to training sessions (2.6/1000 h) (p < 0.001). Injuries affecting the lower limb were the most common (2.3/1000 h), followed by upper limb (1.2/1000 h), and head/trunk (0.6/1000 h). The tissue with the highest incidence of injury was the muscle/tendon (1.3/1000 h), followed by the ligament (0.8/1000 h). Around one in every three injuries (31%) affected either the thigh or hip/groin (73 injuries).

Conclusions

The injury incidence in elite female rink hockey is moderate and occurs mainly during match sessions. Preventative measurements should be implemented in rink hockey with a special concern for injuries affecting the thigh, and hip/groin.

Objective

To compare physical therapy (PT) utilization, timing of return-to-sport (RTS) test and hop test performance by age and between sexes in youth after anterior cruciate ligament reconstruction (ACLR).

Design

Multicenter retrospective cohort.

Methods

A retrospective review of adolescents after primary ACLR was conducted. Participants completed return-to-sport (RTS) tests including single-legged hop testing. PT frequency, average weekly visits, and timing of RTS test were calculated. T-tests assessed the effect of age and sex on average weekly PT visits and multivariable logistic regressions assessed odds of passing hop tests.

Results

289 participants were included (15.7 ± 1.9 years). There was no difference in average weekly PT visits (p = 0.321) or time to RTS test (p = 0.162) by age. There were significant differences in average weekly PT visits (p = 0.047) and mean time from surgery to RTS test (p = 0.048) between sexes with small effect sizes (d = 0.24 and d = 0.21, respectively). Age and sex had no effect on odds of passing hop tests (OR, 1.29; 95% CI, 0.71–2.35 and OR, 0.79; 95%CI, 0.43–1.45, respectively).

Conclusion

In a youth cohort, age and sex may have no clinically important effect on PT visit utilization, timing of RTS test or hop test performance.

Objective

The aim of this study is to review the implementation of the Frequency, Etiology, Direction, and Severity (FEDS) classification for shoulder instability by the physical therapy scientific community since its publication in 2011.

Methods

A systematic search was conducted on January 10, 2024 in the MEDLINE, EMBASE, SPORTDiscus, Scopus, Web of Science, Cochrane, and SciELO databases, as well as Google Scholar. Studies investigating physical therapy interventions in people with shoulder instability, and reporting selection criteria for shoulder instability were considered eligible. A narrative synthesis was conducted.

Results

Twenty-six studies were included. None reported using the FEDS classification as eligibility criteria for shoulder instability. Only 42% of the studies provided data of all four criteria of the FEDS classification. The most reported criterion was direction (92%), followed by etiology (85%), severity (65%), and frequency (58%). The most common reported descriptor for profiling shoulder instability was “dislocation” (83.3%), followed by “first-time” (66.7%), “anterior” (62.5%), and “traumatic” (59.1%). Regarding other instability classifications, only one study (4%) used the Thomas & Matsen classification, and two (8%) the Stanmore classification.

Conclusions

The FEDS classification system has not been embraced enough by the physical therapy scientific community since its publication in 2011.

Objectives

To determine whether quadriceps and hamstring strengthening in a rehabilitation program involving early open kinetic chain (OKC) and/or closed kinetic chain (CKC) knee joint exercises had an influence on graft laxity at 1, 3, and 6 months after anterior cruciate ligament reconstruction (ACLR).

Design

Retrospective study.

Methods

Two groups (n = 53) of ACLR patients (combination of OKC and CKC exercises group compared to a CKC exercise group) were recruited. OKC protocol was introduced at 2 weeks post-operatively without external resistance and progressed at 4 weeks with load. Comparative ACL graft laxity measurement and isokinetic strength testing were prospectively performed up to 6 months in both groups.

Results

No significant differences were observed in the knee laxity at 1 (p = 0.263), 3 (p = 0.263), and 6 months (p = 0.256) follow up between the groups.

Similarly, no significant results were observed in within-group knee laxity between 1 and 6 months after ACLR in the intervention (p = 0.155) and control group (p = 0.690).

Conclusion

The early initiation of OKC along with CKC exercises doesn't seem to increase the ACLR graft laxity as compared to a rehabilitation program with only CKC exercises.

Objectives

We aimed to analyze injury trends and the possible effects of the coronavirus disease (COVID-19) pandemic on the incidence rates of injury in young elite football players.

Design

A prospective cohort study design was adopted.

Participants

Our study included 832 male football players who suffered an injury during any of the six competitive seasons.

Setting

An elite youth football academy.

Main outcome measure

Descriptive data and the incidence of injury were calculated. A generalized linear mixed model was used to assess differences in the occurrence of injury among the various age groups. Joinpoint regression was used to analyze injury trends.

Results

Joinpoint regression models showed a statistically significant decrease in the incidence of injury in all age groups with an average annual percent change (AAPC) of 13.9 (95 %Confidence Interval [CI]:-23.2 - 3.4) and −13.5 (95 %CI:-24.5 to −0.9) for models with zero and one joinpoint, respectively. Football players in older age groups sustain a higher number of injuries, probably due to a higher number of matches and greater training intensity.

Conclusion

This study showed a downward trend in injuries in the participants prior to the pandemic, with an evident increase in the incidence rate of injury during the COVID-19 pandemic.

Objective

Comparison of knee flexor strength limb symmetry index (LSI) between the NordBord-test and the Biodex-test, and to determine the relationship between knee flexor strength and function in patients 2 and 5 years after anterior cruciate ligament reconstruction (ACL-R) with hamstring tendon (HT) autografts.

Design

Observational registry study.

Setting

Primary care.

Patients

Cross-sectional data from 96 patients (55% women) participating in a rehabilitation-registry after ACL-R with HT autografts.

Main outcome measures

Comparison of knee flexor strength symmetry between the Biodex-test and the NordBord-test. Secondly, the relationship between knee flexor strength test and perceived knee function, activity level, and hop performance.

Results

The NordBord-test demonstrated greater strength deficits compared to the Biodex-test with a mean difference of 12.5% ± 15.1% 95 % CI [8.1; 16.9%] at 2 years, and 11.1% ± 11.9% 95 % CI [7.7; 14.6 %] at 5 years after ACL-R. Relative concentric knee flexor strength (Nm/kg) in the Biodex demonstrated significant weak-to-moderate correlations with activity level and hop performance (r = 0.33–0.67) at 2 and 5 years.

Conclusion

The NordBord-test identified deficits in knee flexor strength LSI not seen with the Biodex-test at 2 and 5 years after ACL-R. No significant correlations were found between the persistent knee flexor strength asymmetry and perceived function, activity level or hop performance.