Luuk Hilkens

HAN University of Applied Sciences | HAN · School of Sport and Exercise

This study assessed the effect of combined jump training and collagen supplementation on bone mineral density (BMD) in elite road-race cyclists. In this open-label, randomized study with two parallel groups, 36 young (21 ± 3 years) male (n = 8) and female (n = 28) elite road-race cyclists were allocated to either an intervention (INT: n = 18) or a...

Introduction: Protein ingestion during recovery from exercise has been reported to augment myofibrillar protein synthesis rates, without increasing muscle connective protein synthesis rates. It has been suggested that collagen protein may be effective in stimulating muscle connective protein synthesis. The present study assessed the capacity of bo...

In het sport- en expertisecentrum HAN SENECA van de Hogeschool van Arnhem en Nijmegen worden regelmatig (elite) wiel-renners getest en gemeten. Een groot deel van de profwielrenners blijkt een lage botmineraaldichtheid te hebben, waardoor ze ondermeer een vergrote kans op botbreuken hebben. In dit artikel gaan we in op de oorzaken, gevolgen en beha...

Introduction: We assessed whether collagen supplementation augments the effects of high-impact exercise on bone turnover and whether a higher exercise frequency results in a greater benefit for bone metabolism. Methods: In this randomized, cross-over trial, 14 healthy males (age 24 ± 4 y, BMI 22.0 ± 2.1 kg/m2) performed 5-min of high-impact exer...

Purpose: To assess the prevalence of low bone mineral density (BMD) in male and female elite cyclists at different stages of a professional cycling career, and to identify potential risk factors of low BMD. Methods: In this cross-sectional study, 93 male and female early career, advanced career, and post-career elite cyclists completed dual-ener...

Background Few studies have assessed the use of dietary supplements, anabolic androgenic steroids (AAS) and selective androgen receptor modulators (SARM) in male gym users. The comparison of physical appearance with others on social media and the exposure to fitness-related content on social media (i.e., image-centric social media use) may have a p...

The current double blind, randomized, placebo-controlled trial with two parallel groups aimed to assess the impact of whey protein supplementation on recovery of muscle function and muscle soreness following eccentric exercise. During a 9-day period, forty recreationally active males received twice daily supplementation with either whey protein (PR...