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Browse the failure-mode index

23 real negative results, null findings, and replication failures in Sports medicine. Search the index →

WASTE indexes published research — it does not host or republish full papers. Each entry is a metadata record compiled from open scholarly databases; the abstract is shown in full only where the paper is openly licensed, otherwise a short excerpt under fair use. Classifications are automated and approximate.

Negative / Null Result ReportOpen accessSports medicine

Do Ankle Sleeves And Lace-Up Braces Effect Neuromuscular Control And Athletic Performance?

Blake Bodendorfer, Gary Stover, Christopher Ryan James MD et al. · 2015 · Orthopaedic Journal of Sports Medicine

Objectives: Athletes commonly wear fitted silicone ankle sleeves (SAS) and lace-up ankle braces (LAB). There is limited data about their effect on neuromuscular control or athletic performance. Our goal is to evaluate their efficacy in a young, active population during athletic tasks using motion analysis. Methods: Ten subjects (5 males, 5 females) without prior musculoskeletal injury were recruited. They were asked to perform the Drop Vertical Jump test (DVJ), 45 degree bound, and cutting maneuvers under three conditions: No brace, SAS, LAB. DVJ was used as a surrogate for neuromuscular contr

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Negative / Null Result ReportOpen accessSports medicine

Effects of Opioid-Limiting Legislation and Increased Provider Awareness on Postoperative Opioid Use and Complications After Hip Arthroscopy

John T. Strony MD, Yazdan Raji MD, Jason G. Ina MD et al. · 2023 · Orthopaedic Journal of Sports Medicine

Background: On August 31, 2017, Ohio passed legislation that regulates how opioids can be prescribed postoperatively. Studies have shown that such legislation is successful in reducing the morphine milligram equivalents (MMEs) prescribed after certain orthopaedic procedures. Purpose: (1) To determine if the opioid prescription–limiting legislation in Ohio reduced the cumulative MMEs prescribed after hip arthroscopy without significantly affecting the rates of emergency department (ED) visits, hospital readmissions, and reoperations within 90 days postoperatively, and (2) to assess risk factors

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Negative / Null Result ReportOpen accessSports medicine

Osteochondral Defects Show Location and Size Dependent Adverse Consequences in Valgus Angulation and Radiocapitellar Contact Characteristics with an intact UCL

Genevieve Fraipont, Victor Hung, Michelle McGarry et al. · 2025 · Orthopaedic Journal of Sports Medicine

Objectives: The medial ulnar collateral ligament (UCL), the radiocapitellar joint, and the posteromedial olecranon are the constraints of the elbow that are often injured during the late cocking and early acceleration phases of throwing. Osteochondritis dissecans (OCD) of the capitellum usually occur in adolescents participating in baseball due to repetitive compression force and excessive valgus torque within the radiocapitellar joint. Currently, there is conflicting literature on how location and size of osteochondral defects effect elbow valgus angulation. The purpose of this study was to q

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Negative / Null Result ReportOpen accessSports medicine

The Incidence of Chronic Opioid Use Following Arthroscopic Rotator Cuff Repair and Patient Opioid Education

Danielle G. Weekes MD, Jenna A. Feldman, Richard E. Campbell BS et al. · 2019 · Orthopaedic Journal of Sports Medicine

Objectives: Opioids are commonly prescribed for pain management following Arthroscopic Rotator Cuff Repair (ARCR). While their efficacy outweighs their risks in the short term, chronic opioid use is associated with significant adverse effects, such as dependence, endocrine imbalance or respiratory depression. The rate of chronic opioid use and dependence following ARCR is unknown. The purpose of this study is to determine the rate of chronic opioid use following ARCR and establish the effect of preoperative opioid education on reducing chronic consumption. A secondary aim is to determine if an

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Negative / Null Result ReportOpen accessSports medicine

Safety and Effectiveness of a Perturbation-based Neuromuscular Training Program on Dynamic Balance in Adolescent Females: A Randomized Controlled Trial

Alison Bulow, Judith E Anderson, Jeff R S Leiter et al. · 2021 · International Journal of Sports Physical Therapy

# Background Adolescent females are at much greater risk for ACL injury than their male counterparts when participating in the same sports. Preventative and pre-operative rehabilitation neuromuscular (NM) exercise programs are often recommended to improve knee function and reduce injury rates. The effectiveness of perturbation-based NM training program has been established in an adult population but has yet to be investigated in the at-risk adolescent female population. # Purpose To determine the effectiveness of a perturbation-based NM exercise program in a group of physically active adolesce

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Negative / Null Result ReportOpen accessSports medicine

Comparação de marcadores plasmáticos de dano muscular após a realização de exercício de força com e sem oclusão vascular em homens fisicamente ativos e saudáveis

Murilo Esteves Nogueira, Gabriela Oliveira Baptista, João Paulo Vello Marqueti et al. · 2018 · Revista Brasileira de Prescrição e Fisiologia do Exercício

O objetivo principal do treinamento resistido com pesos é promover a quebra da homeostase do organismo. Desde que dentro dos limites fisiológicos, o organismo gera o fenômeno da supercompensação, alcançando um novo nível de aptidão física. Diversas técnicas são usadas para alcançar o condicionamento físico, e a oclusão vascular (kaatsu training) surge como uma opção permeada por benefícios para sedentários e portadores de patologias, mas ainda com poucas evidências para a população treinada. O objetivo desse trabalho foi comparar a magnitude de dano muscular no exercício resistido com e sem oc

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Negative / Null Result ReportOpen accessSports medicine

Relationship between time under tension of muscle in resistance training with angiogenesis effective factors in inactive girls

Raziyeh Shiri, Mahsa Abdi, Sadegh Amani Shalamzari · 2022 · فیزیولوژی ورزش و فعالیت بدنی

Purpose: One of the changes that occurs in the vascular structure of skeletal muscle during exercise to resolving stress is the process of angiogenesis that has been considered by researchers. Thus, the aim of this study was to investigate the effect of 6-week resistance training with different Time under Tension (TUT) on some serum vascular growth factors in inactive girls.Methods: 20 female volunteer students (mean age 22.3 yrs) were randomly and equally divided into two groups with different TUT of (1s – 1s) and (2s – 4s). Resistance training was performed for 6-week, three times per week,

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Negative / Null Result ReportOpen accessSports medicine

Paper 28: Mid-term Follow-up of Patellofemoral Osteochondral Allograft Transplantation

Tim Wang MD, Van Krueger, Roslyn Kackman et al. · 2025 · Orthopaedic Journal of Sports Medicine

Objectives: Osteochondral allograft (OCA) transplantation is an effective treatment method for articular cartilage damage in the knee. The mid- and long-term outcomes of patellofemoral OCA transplantation has been less frequently reported compared to those of the medial and lateral compartments of the knee, and these grafts often show lower survival rates and worse patient-reported outcomes. The unique morphology and biomechanics of the patellofemoral compartment leads to different pathologies than other areas of the knee. The purpose of this study was to assess graft survivorship and patient-

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Negative / Null Result ReportOpen accessSports medicine

Biomechanical Analysis Evaluating Meniscal Extrusion After Knotless Suture Anchor Fixation for Segmental Medial Meniscal Allograft Transplantation

Phob Ganokroj MD, Bradley W. Fossum BA, Justin Hollenbeck MSc et al. · 2023 · Orthopaedic Journal of Sports Medicine

Background: Segmental medial meniscal allograft transplantation (MAT) has been shown to restore knee biomechanics; however, stable fixation of the transplantation is critical to avoid extrusion and maximize healing. Purpose: To evaluate the degree of meniscal extrusion and biomechanical function of segmental medial MAT performed with meniscocapsular sutures versus repair augmentation with knotless suture anchors. Study Design: Controlled laboratory study. Methods: Segmental midbody medial meniscectomy and subsequent segmental medial MAT were performed on 10 fresh-frozen cadaveric knees. The kn

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Negative / Null Result ReportOpen accessSports medicine

The Convergent Validity of the SWAY Balance Application to Assess Postural Stability in Military Cadets Recovering from Concussion

Max K Dummar, Michael S Crowell, Will Pitt et al. · 2024 · International Journal of Sports Physical Therapy

# Background Concussions are often accompanied by balance disturbances. Clinically accurate evaluation systems are often expensive, large, and inaccessible to most clinicians. The Sway Balance Mobile Application (SWAY) is an accessible method to quantify balance changes. # Purpose To determine the known groups and convergent validity of the SWAY to assess balance after a concussion. # Study Design Case-Control Study. # Methods Twenty participants with acute concussion and twenty controls were recruited. At initial, one-week, and final return to activity (RTA) evaluations, all participants comp

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Negative / Null Result ReportOpen accessSports medicine

Hang cleans and hang snatches produce similar improvements in female collegiate athletes

JL Ayers, M DeBeliso, TG Sevene et al. · 2016 · Biology of Sport

Olympic weightlifting movements and their variations are believed to be among the most effective ways to improve power, strength, and speed in athletes. This study investigated the effects of two Olympic weightlifting variations (hang cleans and hang snatches), on power (vertical jump height), strength (1RM back squat), and speed (40-yard sprint) in female collegiate athletes. 23 NCAA Division I female athletes were randomly assigned to either a hang clean group or hang snatch group. Athletes participated in two workout sessions a week for six weeks, performing either hang cleans or hang snatc

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Negative / Null Result ReportOpen accessSports medicine

Protective Effect of Aerobic Training and Royal Jelly on Cellular senescence Markers of Cardiomyocytes in Obese Rats

Iraj Hoseinzade, Ahmad Abdi, Asieh Abbassi Daloii · 2022 · فیزیولوژی ورزش و فعالیت بدنی

Background and Purpose: Fat tissue, frequently the largest organ in humans, is at the nexus of mechanisms involved in longevity and age-related metabolic dysfunction. Fat distribution and function change dramatically throughout life. Obesity is a major risk factor for development of comorbidities such as type-2 diabetes, neurological disorders, osteoarthritis, cancer, cardiovascular and renal diseases, which is associated with increased senescent cell and heart disorders. Exercise training and natural supplements constitute an indispensable, tool in the management of obesity and obesity-relate

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Negative / Null Result ReportOpen accessSports medicine

The effect of taekwondo structured training on attention in 7–8-year-old children: a randomized controlled trial

Xianfu Song, Dan Wang, Dexin Wang et al. · 2026 · BMC Sports Science, Medicine and Rehabilitation

Abstract Objective This study investigated the effects of an 8-week Taekwondo program on the attention of children aged 7–8 years, exploring its potential as a motor intervention during a critical developmental period. Methods Forty children were randomly assigned to either an experimental group (EG, n = 20), which participated in a structured Taekwondo program (three 45-minute sessions/week at ≥ 60% HRmax), or a control group (CG, n = 20), which attended regular physical education classes. Attention was assessed pre- and post-intervention using tasks measuring stability, allocation, shifting,

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Negative / Null Result ReportOpen accessSports medicine

Covid-19 Restrictions and the Effects of Physical Activity on Mental Health in Midwestern Adolescent Adaptive Athletes

Joshua Choe MS, Saji Azerf MD, Pamela Lang MD · 2022 · Orthopaedic Journal of Sports Medicine

Background: The COVID-19 pandemic and related lockdowns in 2020 negatively impacted high school students, with increased depression and anxiety especially in athletes who participated in team sports. For adolescents with disabilities, physical activity provides physical and mental health benefits; however, the impact of COVID-19 related adaptive sports cancellations have not been thoroughly investigated. Hypothesis: Adaptive athletes with lower activity levels during a period of COVID-19 related restrictions will have worse scores of depression, anxiety, and quality of life. Methods: Instituti

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Negative / Null Result ReportOpen accessSports medicine

Debridement or Microfracture for Full-Thickness Cartilage Lesions in Anterior Cruciate Ligament Reconstruction: A 10-Year Cohort Study of 326 Patients in Norway and Sweden

Stian Kjennvold MD, Jan Harald Røtterud MD, PhD, Magnus Forssblad MD, PhD et al. · 2025 · Orthopaedic Journal of Sports Medicine

Background: It is well-established that patients undergoing anterior cruciate ligament reconstruction (ACLR) have a less favorable prognosis if a concomitant full-thickness cartilage lesion is present at the time of surgery. However, the long-term benefits of surgically addressing these cartilage lesions remain uncertain. Purpose: To evaluate whether the most used surgical treatments for cartilage lesions influenced patient-reported outcomes 10 years after ACLR. Study Design: Cohort study; Level of evidence, 2. Methods: This study was based on a cohort of all patients with primary unilateral A

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Negative / Null Result ReportOpen accessSports medicine

Effect of yoga on autonomic nervous system function in females

Rika Kimoto, Isao Kambayashi, Akane Akizuki et al. · 2021 · Journal of Physical Fitness and Sports Medicine

The autonomic nervous system (ANS) maintains homeostasis through the balance of the sympathetic and parasympathetic subsystems or divisions. Currently, analysis of heart rate variability (HRV) offers an indirect, non-invasive assessment of ANS function. An irregular lifestyle and stress are known to affect ANS balance, influencing many diseases. Moreover, ANS disorder plays an important role in climacteric symptoms in menopausal females. The purpose of this study was designed to assess the effects of yoga practice sessions (herein referred to as “yoga”) on ANS function and focused on the relat

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Negative / Null Result ReportOpen accessSports medicine

Effects of stimulation conditions and subcutaneous tissue properties on acupressure-induced changes in blood circulation of human tendons

Ayaka Yasuda, Shuhei Sasajima, Takehiro Kosaka et al. · 2023 · Journal of Physical Fitness and Sports Medicine

The purpose of this study was to investigate the effects of stimulation conditions (pressing force and frequency) and subcutaneous tissue properties (thickness and hardness) on the changes in tendon blood circulation caused by acupressure. Before and after acupressure, blood circulation of the Achilles tendon was measured using red laser lights. Acupressure was applied to the Achilles tendon for 3-min under three conditions. The following four conditions (including no stimulation condition) with different combinations of pressing forces and frequencies were established: 1) 50N and 1.5Hz, 2) 25

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Negative / Null Result ReportOpen accessSports medicine

Increased Risk of Graft Failure after ACL Reconstruction in Young Female Athletes with Hamstring Grafts

Mark V. Paterno PhD, PT, Staci Thomas MS, Timothy E. Hewett PhD, FACSM et al. · 2017 · Orthopaedic Journal of Sports Medicine

Objectives: The incidence of second anterior cruciate ligament (ACL) injury after ACL reconstruction (ACLR) and return to sport (RTS) in a young, active population is likely between 25-33% with the greatest risk in the first 12 months after RTS. Although the use of allograft tissue in young athletes has been reported to result in increased risk of graft failure, differences in graft and contralateral ACL injury risk between patients who receive a hamstrings (HS) autograft and bone-patellar tendon- bone (BTB) autograft has yet to be reported in a young, athletic population. The tested hypothesi

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Negative / Null Result ReportOpen accessSports medicine

Patients’ Satisfaction Evaluation

Ebru Kaya Mutlu, Arzu Razak Özdinçler · 2014 · Orthopaedic Journal of Sports Medicine

Objectives: Although many studies were focused on the assessment of patients' satisfaction, few studies have specifically addressed this issue for knee osteoartritis. Global rating of change (GRC) scales are very commonly used in clinical research, particularly in the musculoskeletal area. The purpose of this study was to evaluate the patients’ satisfaction of the Mulligan’s Mobilization with Movement (MWM) techniques, Passive Mobilization (PM) techniques and physical therapy modalities (PTM) (superficial heat or cold, Transcutaneous Electrical Nerve Stimulation (TENS) and therapeutic ultrasou

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Negative / Null Result ReportOpen accessSports medicine

Is the Lind or LaPrade Technique Able to Control Anterior and Rotational Laxity in Medial-Side Knee Injuries? A Controlled Laboratory Study of 18 Knees

Michel Drouineau MD, Baptiste Guegan MD, Harold Common MD et al. · 2025 · Orthopaedic Journal of Sports Medicine

Background: Reconstruction of the medial collateral ligament (MCL) and posterior oblique ligament (POL) is necessary to restore stability in chronic lesions on the medial side of the knee. The Lind technique uses a single-strand, pedicled semitendinosus tendon autograft to perform continuous reconstruction of the MCL and POL. The LaPrade technique uses 2 free grafts: 1 graft for the MCL (double-strand semitendinosus tendon graft) and 1 graft for the POL (double-strand gracilis tendon graft). Purpose: To investigate the LaPrade and Lind techniques in restraining tibial translation and rotation

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Negative / Null Result ReportOpen accessSports medicine

Evaluation of body-self-perception of sedentary individuals aged over 30 who attended fitness center classes

Engin Gezer, Gulten Herguner, Mahmut Gulle et al. · 2014 · Türk Spor ve Egzersiz Dergisi

With this study; it was aimed to obtain multi-dimensional evaluation of body-self perception levels of sedentary individuals aged over 30 who attended fitness center classes. The population of the study was consisted of fitness centers located inHatayProvince. The sample was composed of 80 sedentary individuals (38 men and 42 women) who attended the selected fitness centers with random sampling. All of the subjects were included in the study with voluntariness principle. Pre-test and post-test method was used in order to conduct a more illustrative study. In the study; a personal information f

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Negative / Null Result ReportOpen accessSports medicine

Poster 231: Isolated Medial Meniscus Root Tears: A Multicenter Analysis of Prognostic Variables for Achieving Patient Acceptable Symptomatic State after Repair

Mario Hevesi MD, PhD, Alexander M. Boos, Allen Wang et al. · 2024 · Orthopaedic Journal of Sports Medicine

Objectives: Medial meniscus posterior root tears (MMPRTs) render the meniscus essentially non-functional, resulting in increased peak contact pressures, reduced forced dissipation, and increased risk of early osteoarthritis. Transtibial root repair has shown promise at restoring meniscus function and improving clinical outcomes; however, a paucity of literature exists evaluating the prognostic clinical and radiographic factors for poor outcomes following isolated meniscus root repair. The purpose of this study was to 1) describe the patient reported clinical outcomes after isolated MMPRT repai

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Negative / Null Result ReportOpen accessSports medicine

The Effect of Warming on Visual Response Time in Dominant and Non-Dominant Lower and Upper Extremities

Nurtekin Erkmen, Yağmur Kocaoğlu, Ahmet Kaan Aslan et al. · 2023 · Türk Spor ve Egzersiz Dergisi

The aim of this study was to investigate the effect of warm-up activity on the visual response time of the dominant and non-dominant hand and foot in basketball players. A total of 13 male basketball athletes with an age of 14.38 ± .506 years, height 180.15 ± 8.07 cm, body weight 66.54 ± 13.73 and sports experience 4.69 ± 13.73 years were voluntarily included in the study. Visual response time of the dominant and non-dominant hand and foot were measured before and after the warm-up protocol. The warm-up protocol consisted of a 20-minute warm-up activity including basketball-specific movements

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