46767
2017
2017
eng
448
454
7
27
article
Wiley
Hoboken
1
--
--
--
Back pain prevalence in adolescent athletes
The research aimed to investigate back pain (BP) prevalence in a large cohort of young athletes with respect to age, gender, and sport discipline. BP (within the last 7days) was assessed with a face scale (face 1-2=no pain; face 3-5=pain) in 2116 athletes (m/f 61%/39%; 13.3 +/- 1.7years; 163.0 +/- 11.8cm; 52.6 +/- 13.9kg; 4.9 +/- 2.7 training years; 8.4 +/- 5.7 training h/week). Four different sports categories were devised (a: combat sports, b: game sports; c: explosive strength sport; d: endurance sport). Analysis was described descriptively, regarding age, gender, and sport. In addition, 95% confidence intervals (CI) were calculated. About 168 (8%) athletes were allocated into the BP group. About 9% of females and 7% of males reported BP. Athletes, 11-13years, showed a prevalence of 2-4%; while prevalence increased to 12-20% in 14- to 17-year olds. Considering sport discipline, prevalence ranged from 3% (soccer) to 14% (canoeing). Prevalences in weight lifting, judo, wrestling, rowing, and shooting were 10%; in boxing, soccer, handball, cycling, and horse riding, 6%. 95% CI ranged between 0.08-0.11. BP exists in adolescent athletes, but is uncommon and shows no gender differences. A prevalence increase after age 14 is obvious. Differentiated prevention programs in daily training routines might address sport discipline-specific BP prevalence.
Scandinavian journal of medicine & science in sports
10.1111/sms.12664
26892028
0905-7188
1600-0838
wos:2017
WOS:000395709400009
Muller, J (reprint author), Univ Outpatient Clin, Sports Med & Sports Orthopaed, Neuen Palais 10,House 12, D-14469 Potsdam, Germany., thormei@uni-potsdam.de
National Institute of Sport Science of Germany [BISp IIA 1-080126/09-13]
importub
2020-04-20T04:13:01+00:00
filename=package.tar
1f8725c84bc22f484e8b42d71a19a60f
Juliane Müller
Steffen Müller
Josefine Stoll
K. Fröhlich
Christoph Otto
Frank Mayer
eng
uncontrolled
Young athletes
eng
uncontrolled
back pain
eng
uncontrolled
prevalence
eng
uncontrolled
types of sports
Referiert
Department Sport- und Gesundheitswissenschaften
Import
Institut für Sportmedizin und Prävention
46662
2017
2017
eng
124
132
9
8
article
Frontiers Research Foundation
Lausanne
1
--
--
--
Trunk Muscle Activity during Drop Jump Performance in Adolescent Athletes with Back Pain
In the context of back pain, great emphasis has been placed on the importance of trunk stability, especially in situations requiring compensation of repetitive, intense loading induced during high-performance activities, e.g., jumping or landing. This study aims to evaluate trunk muscle activity during drop jump in adolescent athletes with back pain (BP) compared to athletes without back pain (NBP). Eleven adolescent athletes suffering back pain (BP: m/f: n = 4/7; 15.9 +/- 1.3 y; 176 +/- 11 cm; 68 +/- 11 kg; 12.4 +/- 10.5 h/we training) and 11 matched athletes without back pain (NBP: m/f: n = 4/7; 15.5 +/- 1.3 y; 174 +/- 7 cm; 67 +/- 8 kg; 14.9 +/- 9.5 h/we training) were evaluated. Subjects conducted 3 drop jumps onto a force plate (ground reaction force). Bilateral 12-lead SEMG (surface Electromyography) was applied to assess trunk muscle activity. Ground contact time [ms], maximum vertical jump force [N], jump time [ms] and the jump performance index [m/s] were calculated for drop jumps. SEMG amplitudes (RMS: root mean square [%]) for all 12 single muscles were normalized toMIVC (maximum isometric voluntary contraction) and analyzed in 4 time windows (100 ms pre- and 200 ms post-initial ground contact, 100 ms pre- and 200 ms post-landing) as outcome variables. In addition, muscles were grouped and analyzed in ventral and dorsal muscles, as well as straight and transverse trunk muscles. Drop jump ground reaction force variables did not differ between NBP and BP (p > 0.05). Mm obliquus externus and internus abdominis presented higher SEMG amplitudes (1.3-1.9-fold) for BP (p < 0.05). Mm rectus abdominis, erector spinae thoracic/lumbar and latissimus dorsi did not differ (p > 0.05). The muscle group analysis over the whole jumping cycle showed statistically significantly higher SEMG amplitudes for BP in the ventral (p = 0.031) and transverse muscles (p = 0.020) compared to NBP. Higher activity of transverse, but not straight, trunk muscles might indicate a specific compensation strategy to support trunk stability in athletes with back pain during drop jumps. Therefore, exercises favoring the transverse trunk muscles could be recommended for back pain treatment.
Frontiers in physiology
10.3389/fphys.2017.00274
28522976
1664-042X
wos:2017
274
WOS:000403200400001
Mueller, S (reprint author), Univ Potsdam, Univ Outpatient Clin, Sports Med & Sports Orthopaed, Potsdam, Germany., stefmue@uni-potsdam.de
National Institute of Sport Science of Germany (Bundesinstitut fur Sportwissenschaft BISp) [IIA 1-080126/09-13]; Deutsche Forschungsgemeinschaft; University of Potsdam
importub
2020-04-20T03:20:01+00:00
filename=package.tar
64ddd49393425af6e8e4b5bb217b9885
Steffen Müller
Josefine Stoll
Juliane Mueller
Michael Cassel
Frank Mayer
eng
uncontrolled
SEMG-pattern
eng
uncontrolled
back pain
eng
uncontrolled
pre-activity
eng
uncontrolled
drop jump
eng
uncontrolled
neuromuscular
eng
uncontrolled
trunk
eng
uncontrolled
performance
eng
uncontrolled
young athletes
Referiert
Department Sport- und Gesundheitswissenschaften
Import
Institut für Sportwissenschaft
39526
2017
2017
eng
9
postprint
1
--
2017-05-04
--
Trunk Muscle Activity during Drop Jump Performance in Adolescent Athletes with Back Pain
In the context of back pain, great emphasis has been placed on the importance of trunk stability, especially in situations requiring compensation of repetitive, intense loading induced during high-performance activities, e.g., jumping or landing. This study aims to evaluate trunk muscle activity during drop jump in adolescent athletes with back pain (BP) compared to athletes without back pain (NBP). Eleven adolescent athletes suffering back pain (BP: m/f: n = 4/7; 15.9 ± 1.3 y; 176 ± 11 cm; 68 ± 11 kg; 12.4 ± 10.5 h/we training) and 11 matched athletes without back pain (NBP: m/f: n = 4/7; 15.5 ± 1.3 y; 174 ± 7 cm; 67 ± 8 kg; 14.9 ± 9.5 h/we training) were evaluated. Subjects conducted 3 drop jumps onto a force plate (ground reaction force). Bilateral 12-lead SEMG (surface Electromyography) was applied to assess trunk muscle activity. Ground contact time [ms], maximum vertical jump force [N], jump time [ms] and the jump performance index [m/s] were calculated for drop jumps. SEMG amplitudes (RMS: root mean square [%]) for all 12 single muscles were normalized to MIVC (maximum isometric voluntary contraction) and analyzed in 4 time windows (100 ms pre- and 200 ms post-initial ground contact, 100 ms pre- and 200 ms post-landing) as outcome variables. In addition, muscles were grouped and analyzed in ventral and dorsal muscles, as well as straight and transverse trunk muscles. Drop jump ground reaction force variables did not differ between NBP and BP (p > 0.05). Mm obliquus externus and internus abdominis presented higher SEMG amplitudes (1.3–1.9-fold) for BP (p < 0.05). Mm rectus abdominis, erector spinae thoracic/lumbar and latissimus dorsi did not differ (p > 0.05). The muscle group analysis over the whole jumping cycle showed statistically significantly higher SEMG amplitudes for BP in the ventral (p = 0.031) and transverse muscles (p = 0.020) compared to NBP. Higher activity of transverse, but not straight, trunk muscles might indicate a specific compensation strategy to support trunk stability in athletes with back pain during drop jumps. Therefore, exercises favoring the transverse trunk muscles could be recommended for back pain treatment.
urn:nbn:de:kobv:517-opus4-395261
online registration
Universität Potsdam, Publikationsfonds
PA 2017_21
Frontiers in physiology (2017) Nr. 8:274. - DOI: 10.3389/fphys.2017.00274
<a href="http://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/39525">Bibliographieeintrag der Originalveröffentlichung/Quelle</a>
CC-BY - Namensnennung 4.0 International
Steffen Müller
Josefine Stoll
Michael Cassel
Frank Mayer
Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe
319
eng
uncontrolled
SEMG-pattern
eng
uncontrolled
back pain
eng
uncontrolled
drop jump
eng
uncontrolled
neuromuscular
eng
uncontrolled
performance
eng
uncontrolled
pre-activity
eng
uncontrolled
trunk
eng
uncontrolled
young athletes
Medizin und Gesundheit
open_access
Strukturbereich Kognitionswissenschaften
Referiert
Open Access
Universität Potsdam
https://publishup.uni-potsdam.de/files/39526/phr_319_online.pdf
39525
2017
2017
eng
8
article
Frontiers Research Foundation
Lausanne
1
--
2017-05-04
--
Trunk Muscle Activity during Drop Jump Performance in Adolescent Athletes with Back Pain
In the context of back pain, great emphasis has been placed on the importance of trunk stability, especially in situations requiring compensation of repetitive, intense loading induced during high-performance activities, e.g., jumping or landing. This study aims to evaluate trunk muscle activity during drop jump in adolescent athletes with back pain (BP) compared to athletes without back pain (NBP). Eleven adolescent athletes suffering back pain (BP: m/f: n = 4/7; 15.9 ± 1.3 y; 176 ± 11 cm; 68 ± 11 kg; 12.4 ± 10.5 h/we training) and 11 matched athletes without back pain (NBP: m/f: n = 4/7; 15.5 ± 1.3 y; 174 ± 7 cm; 67 ± 8 kg; 14.9 ± 9.5 h/we training) were evaluated. Subjects conducted 3 drop jumps onto a force plate (ground reaction force). Bilateral 12-lead SEMG (surface Electromyography) was applied to assess trunk muscle activity. Ground contact time [ms], maximum vertical jump force [N], jump time [ms] and the jump performance index [m/s] were calculated for drop jumps. SEMG amplitudes (RMS: root mean square [%]) for all 12 single muscles were normalized to MIVC (maximum isometric voluntary contraction) and analyzed in 4 time windows (100 ms pre- and 200 ms post-initial ground contact, 100 ms pre- and 200 ms post-landing) as outcome variables. In addition, muscles were grouped and analyzed in ventral and dorsal muscles, as well as straight and transverse trunk muscles. Drop jump ground reaction force variables did not differ between NBP and BP (p > 0.05). Mm obliquus externus and internus abdominis presented higher SEMG amplitudes (1.3–1.9-fold) for BP (p < 0.05). Mm rectus abdominis, erector spinae thoracic/lumbar and latissimus dorsi did not differ (p > 0.05). The muscle group analysis over the whole jumping cycle showed statistically significantly higher SEMG amplitudes for BP in the ventral (p = 0.031) and transverse muscles (p = 0.020) compared to NBP. Higher activity of transverse, but not straight, trunk muscles might indicate a specific compensation strategy to support trunk stability in athletes with back pain during drop jumps. Therefore, exercises favoring the transverse trunk muscles could be recommended for back pain treatment.
Frontiers in physiology
10.3389/fphys.2017.00274
1664-042X
Universität Potsdam, Publikationsfonds
PA 2017_21
online registration
274
<a href="http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-395261">Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Humanwissenschaftliche Reihe ; 319</a>
1846.36
CC-BY - Namensnennung 4.0 International
Steffen Müller
Josefine Stoll
Michael Cassel
Frank Mayer
eng
uncontrolled
SEMG-pattern
eng
uncontrolled
back pain
eng
uncontrolled
pre-activity
eng
uncontrolled
drop jump
eng
uncontrolled
neuromuscular
eng
uncontrolled
trunk
eng
uncontrolled
performance
eng
uncontrolled
young athletes
Medizin und Gesundheit
Strukturbereich Kognitionswissenschaften
Referiert
Publikationsfonds der Universität Potsdam
Open Access
Universität Potsdam