M Bargetto

Julien Raoux

Kevin Caillaud

Gaël Ennequin

Fabien Andrieux

Pascal Sirvent

Fabien

Complex sports drink enhances recovery from plyometric exercise

à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

Introduction

-In many sports, good and fast recovery is primordial in order to reduce injury risk and to repeat efficiently practice sessions and competitions over the season. -Among various drug-free recovery strategies, effective post-exercise nutrition is essential, through intake of quality nutrients.

-Following exercise, the effects of isolated nutrients such as the β-hydroxyl-β-methylbutyrate [START_REF] Wilson | International Society of Sports Nutrition Position Stand: β-hydroxy-β-methylbutyrate[END_REF] , glutamine or branched amino acids are well-known. But few works have examined the effects of complex sports drinks ingested immediately after strenuous exercise and dedicated to limiting muscle soreness emergence. -Though synergistic action assumptions of the various ingredients as well as blocking or inhibition mechanisms may be envisaged.

Results

Discussion

-Difference between SJ and CMJ performance recovery suggests that the sports drink mainly improves recovery through action on muscle elastic components such as titin, which holds an essential role in storing and releasing energy during stretch-shortening cycle [START_REF] Monroy | What Is the Role of Titin in Active Muscle? American College of Sports Medicine[END_REF] .

-In conclusion, complex sports drink intake immediately after plyometric and eccentric training session may offer a recovery advantage regarding counter movement jump performance and perceived muscle soreness.

Aims

To assess the effects of a complex sports drink (Drink N'Récup®, SPD), in comparison with a placebo drink (PLA), on recovery following combined plyometric-eccentric training session.

Methods

  Protocol design CK : blood creatine kinase assay; NRS : numeric rating scale of soreness 0 to 10; TC : thigh circumference; SJ : 3 squat jumps trials; Sprint : 3x20m sprint CMJ : 3 counter movement jump trials; t : time of protocol U.L -1 ± SE) Muscle soreness change (A.U. ± SE) CMJ performance change (% ± SE) # different from PRE with p < 0.05 * different from PLA with p < 0.05 No significant difference : -Thigh circumference -Squat jump performance -20-m sprint performance