Bilateral impairments of quadriceps neuromuscular function occur early after anterior cruciate ligament injury
The study aimed to investigate the impairments in quadriceps neuromuscular function, including strength, rate of torque development (RTD) and activation failure (QAF) early after an ACL injury. A cross-sectional study was conducted. Thirty physically active patients with a primary ACL injury within three months, aged 18 to 40 years old, and who were scheduled for ACL reconstruction were included. Thirty matched healthy controls were also recruited. All the outcomes were measured on an isokinetic dynamometer with knee flexion at 45°. Quadriceps strength was measured by maximal voluntary isometric contractions (MVIC). Early (RTD0-50) and late (RTD100-200) phases of RTD were retrieved from the MVIC test from 0 to 50 ms and 100-200 ms, respectively. QAF was quantified by the central activation ratio (CAR) measured by superimposed burst technique. The results of Mann-Whitney U test showed that compared with the healthy limbs, the injured limbs of the ACL group showed lower quadriceps strength (P < 0.001), RTD0-50 (P < 0.001) and RTD100-200 (P < 0.001); the uninjured limbs showed lower quadriceps strength (P = 0.009), RTD0-50 (P = 0.006) as well as greater QAF (P = 0.010). To conclude, bilateral quadriceps suffered from neuromuscular impairments early after an ACL injury.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2024 2023 |
|---|---|
| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:32 |
|---|---|
| Enthalten in: |
Research in sports medicine (Print) - 32(2023), 1 vom: 30. Jan., Seite 72-85 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Qiu, Jihong [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
|---|
| Anmerkungen: |
Date Completed 25.12.2023 Date Revised 25.12.2023 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1080/15438627.2022.2079986 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM341575526 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM341575526 | ||
| 003 | DE-627 | ||
| 005 | 20231227140821.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1080/15438627.2022.2079986 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1238.xml |
| 035 | |a (DE-627)NLM341575526 | ||
| 035 | |a (NLM)35635286 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Qiu, Jihong |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Bilateral impairments of quadriceps neuromuscular function occur early after anterior cruciate ligament injury |
| 264 | 1 | |c 2024 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 25.12.2023 | ||
| 500 | |a Date Revised 25.12.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a The study aimed to investigate the impairments in quadriceps neuromuscular function, including strength, rate of torque development (RTD) and activation failure (QAF) early after an ACL injury. A cross-sectional study was conducted. Thirty physically active patients with a primary ACL injury within three months, aged 18 to 40 years old, and who were scheduled for ACL reconstruction were included. Thirty matched healthy controls were also recruited. All the outcomes were measured on an isokinetic dynamometer with knee flexion at 45°. Quadriceps strength was measured by maximal voluntary isometric contractions (MVIC). Early (RTD0-50) and late (RTD100-200) phases of RTD were retrieved from the MVIC test from 0 to 50 ms and 100-200 ms, respectively. QAF was quantified by the central activation ratio (CAR) measured by superimposed burst technique. The results of Mann-Whitney U test showed that compared with the healthy limbs, the injured limbs of the ACL group showed lower quadriceps strength (P < 0.001), RTD0-50 (P < 0.001) and RTD100-200 (P < 0.001); the uninjured limbs showed lower quadriceps strength (P = 0.009), RTD0-50 (P = 0.006) as well as greater QAF (P = 0.010). To conclude, bilateral quadriceps suffered from neuromuscular impairments early after an ACL injury | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a ACL | |
| 650 | 4 | |a knee extensors | |
| 650 | 4 | |a neuromuscular deficits | |
| 700 | 1 | |a Jiang, Tianzhi |e verfasserin |4 aut | |
| 700 | 1 | |a Ong, Michael Tim-Yun |e verfasserin |4 aut | |
| 700 | 1 | |a He, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Choi, Chi-Yin |e verfasserin |4 aut | |
| 700 | 1 | |a Fu, Sai-Chuen |e verfasserin |4 aut | |
| 700 | 1 | |a Fong, Daniel T P |e verfasserin |4 aut | |
| 700 | 1 | |a Yung, Patrick Shu-Hang |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Research in sports medicine (Print) |d 2003 |g 32(2023), 1 vom: 30. Jan., Seite 72-85 |w (DE-627)NLM159892767 |x 1543-8635 |7 nnns |
| 773 | 1 | 8 | |g volume:32 |g year:2023 |g number:1 |g day:30 |g month:01 |g pages:72-85 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1080/15438627.2022.2079986 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 32 |j 2023 |e 1 |b 30 |c 01 |h 72-85 | ||