PMID- 37547838
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240129
IS  - 2159-2896 (Print)
IS  - 2159-2896 (Electronic)
IS  - 2159-2896 (Linking)
VI  - 18
IP  - 4
DP  - 2023
TI  - Effect of Footwear Versus Barefoot on Double-Leg Jump-Landing and Jump Height 
      Measures: A Randomized Cross-Over Study.
PG  - 845-855
LID - 10.26603/001c.81107 [doi]
AB  - BACKGROUND: Assessing individuals in their own athletic footwear in clinics is 
      common, but can affect movement, performance, and clinical measures. PURPOSE: The 
      aim was to compare overall Landing Error Scoring System (LESS) scores, injury 
      risk categorization, specific LESS errors, and jump heights between habitual 
      athletic footwear and barefoot conditions. STUDY DESIGN: Randomized cross-over 
      laboratory study. METHODS: Eighty healthy individuals (55% male) completed the 
      LESS following standard procedures (i.e., land from a 30-cm box to a distance of 
      50% of body height and then jump upwards maximally). Participants performed the 
      LESS three times in two randomized conditions: footwear and barefoot. LESS data 
      were extracted from 2D videos to compare group-level mean LESS scores, 
      group-level and individual-level injury risk categorization (5-error threshold), 
      specific landing errors, and jump heights between conditions. RESULTS: LESS 
      scores were significantly greater (0.3 errors, p=0.022) and jump heights were 
      significantly lower (0.6 cm, p=0.029) in footwear than barefoot, but differences 
      were trivial (d = 0.18 and -0.07, respectively) and not clinically meaningful. 
      Although the number of high injury-risk participants was not statistically 
      different at a group level (p=1.000); 27 individuals (33.8%) exhibited a 
      clinically meaningful difference between conditions of one error or more in LESS 
      score, categorization was inconsistent for 16.3% of individuals, and four of the 
      17 landing errors significantly differed between conditions. CONCLUSION: At a 
      group level, habitual athletic footwear does not meaningfully influence LESS 
      scores, risk categorization, or jump height. At an individual level, footwear can 
      meaningfully affect LESS scores, risk categorization, and alter landing 
      strategies. Use of consistent protocol and footwear is advised for assessing 
      movement patterns and injury risk from the LESS given the unknown predictive 
      value of this test barefoot. LEVEL OF EVIDENCE: Level 3.(c)The Author(s).
FAU - Hebert-Losier, Kim
AU  - Hebert-Losier K
AUID- ORCID: 0000-0003-1087-4986
AD  - Te Huataki Waiora School of Health University of Waikato. ROR: 
      https://ror.org/013fsnh78
FAU - Boswell-Smith, Caleb
AU  - Boswell-Smith C
AD  - Te Huataki Waiora School of Health University of Waikato. ROR: 
      https://ror.org/013fsnh78
FAU - Hanzlikova, Ivana
AU  - Hanzlikova I
AUID- ORCID: 0000-0002-2259-9312
AD  - Department of Physiotherapy Palacky University Olomouc.
LA  - eng
PT  - Journal Article
DEP - 20230801
PL  - United States
TA  - Int J Sports Phys Ther
JT  - International journal of sports physical therapy
JID - 101553140
PMC - PMC10399122
OTO - NOTNLM
OT  - Anterior Cruciate Ligament
OT  - biomechanics
OT  - knee
OT  - screening
COIS- The authors report no conflicts of interest.
EDAT- 2023/08/07 06:41
MHDA- 2023/08/07 06:42
PMCR- 2023/08/01
CRDT- 2023/08/07 04:59
PHST- 2022/10/28 00:00 [received]
PHST- 2023/05/07 00:00 [accepted]
PHST- 2023/08/07 06:42 [medline]
PHST- 2023/08/07 06:41 [pubmed]
PHST- 2023/08/07 04:59 [entrez]
PHST- 2023/08/01 00:00 [pmc-release]
AID - 81107 [pii]
AID - 10.26603/001c.81107 [doi]
PST - epublish
SO  - Int J Sports Phys Ther. 2023 Aug 1;18(4):845-855. doi: 10.26603/001c.81107. 
      eCollection 2023.