Ebonie Rio1, Mathijs van Ark, Sean Docking, G Lorimer Moseley, Dawson Kidgell, Jamie E Gaida, Inge van den Akker-Scheek, Johannes Zwerver, Jill Cook. 1. *Department of Physiotherapy, Monash University, Victoria, Australia; †Australian Centre for Research into Injury in Sport and its Prevention, La Trobe University Bundoora, Victoria, Australia; ‡University of Groningen, University Medical Center Groningen, Groningen, Netherlands; §University of South Australia and PainAdelaide; ¶College of Science, Health and Engineering, School of Allied Health, Department of Rehabilitation, Nutrition and Sport, La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Bundoora, Australia; and ‖Faculty of Health, University of Canberra Research Institute for Sport and Exercise.
Abstract
OBJECTIVE: This study aimed to compare the immediate analgesic effects of 2 resistance programs in in-season athletes with patellar tendinopathy (PT). Resistance training is noninvasive, a principle stimulus for corticospinal and neuromuscular adaptation, and may be analgesic. DESIGN: Within-season randomized clinical trial. Data analysis was conducted blinded to group. SETTING:Subelite volleyball and basketball competitions. PARTICIPANTS: Twenty jumping athletes aged more than 16 years, participating in games/trainings 3 times per week with clinically diagnosed PT. INTERVENTIONS: Two quadriceps resistance protocols were compared; (1) isometric leg extension holds at 60 degrees knee flexion (80% of their maximal voluntary isometric contraction) or (2) isotonic leg extension (at 80% of their 8 repetition maximum) 4 times per week for 4 weeks. Time under load and rest between sets was matched between groups. MAIN OUTCOME MEASURES: (1) Pain (0-10 numerical rating score) during single leg decline squat (SLDS), measured preintervention and postintervention sessions. (2) VISA-P, a questionnaire about tendon pain and function, completed at baseline and after 4 weeks. RESULTS:Twenty athletes with PT (18 men, mean 22.5 ± 4.7 years) participated (isotonic n = 10, isometric n = 10). Baseline median SLDS pain was 5/10 for both groups (isotonic range 1-8, isometric range 2-8). Isometric contractions produced significantly greater immediate analgesia (P < 0.002). Week one analgesic response positively correlated with improvements in VISA-P at 4 weeks (r = 0.64). CONCLUSIONS: Both protocols appear efficacious for in-season athletes to reduce pain, however, isometric contractions demonstrated significantly greater immediate analgesia throughout the 4-week trial. Greater analgesia may increase the ability to load or perform.
RCT Entities:
OBJECTIVE: This study aimed to compare the immediate analgesic effects of 2 resistance programs in in-season athletes with patellar tendinopathy (PT). Resistance training is noninvasive, a principle stimulus for corticospinal and neuromuscular adaptation, and may be analgesic. DESIGN: Within-season randomized clinical trial. Data analysis was conducted blinded to group. SETTING: Subelite volleyball and basketball competitions. PARTICIPANTS: Twenty jumping athletes aged more than 16 years, participating in games/trainings 3 times per week with clinically diagnosed PT. INTERVENTIONS: Two quadriceps resistance protocols were compared; (1) isometric leg extension holds at 60 degrees knee flexion (80% of their maximal voluntary isometric contraction) or (2) isotonic leg extension (at 80% of their 8 repetition maximum) 4 times per week for 4 weeks. Time under load and rest between sets was matched between groups. MAIN OUTCOME MEASURES: (1) Pain (0-10 numerical rating score) during single leg decline squat (SLDS), measured preintervention and postintervention sessions. (2) VISA-P, a questionnaire about tendon pain and function, completed at baseline and after 4 weeks. RESULTS: Twenty athletes with PT (18 men, mean 22.5 ± 4.7 years) participated (isotonic n = 10, isometric n = 10). Baseline median SLDS pain was 5/10 for both groups (isotonic range 1-8, isometric range 2-8). Isometric contractions produced significantly greater immediate analgesia (P < 0.002). Week one analgesic response positively correlated with improvements in VISA-P at 4 weeks (r = 0.64). CONCLUSIONS: Both protocols appear efficacious for in-season athletes to reduce pain, however, isometric contractions demonstrated significantly greater immediate analgesia throughout the 4-week trial. Greater analgesia may increase the ability to load or perform.
Authors: David S Logerstedt; Jay R Ebert; Toran D MacLeod; Bryan C Heiderscheit; Tim J Gabbett; Brian J Eckenrode Journal: Sports Med Date: 2021-10-20 Impact factor: 11.136
Authors: F Abat; H Alfredson; M Cucchiarini; H Madry; A Marmotti; C Mouton; J M Oliveira; H Pereira; G M Peretti; D Romero-Rodriguez; C Spang; J Stephen; C J A van Bergen; L de Girolamo Journal: J Exp Orthop Date: 2017-05-30
Authors: Daniel Jerez-Mayorga; Luis Javier Chirosa Ríos; Alvaro Reyes; Pedro Delgado-Floody; Ramon Machado Payer; Isabel María Guisado Requena Journal: PeerJ Date: 2019-08-07 Impact factor: 2.984