The nutritional status of elite soccer players across match, postmatch, training and rest days has not been defined. Recent evidence suggests the pattern of dietary protein intake impacts the daytime turnover of muscle proteins and, as such, influences muscle recovery. We assessed the nutritional status and daytime pattern of protein intake in senior professional and elite youth soccer players and compared findings against published recommendations. Fourteen senior professional (SP) and 15 youth elite (YP) soccer players from the Dutch premier division completed nutritional assessments using a 24-hr web-based recall method. Recall days consisted of a match, postmatch, rest, and training day. Daily energy intake over the 4-day period was similar between SP (2988 ± 583 kcal/day) and YP (2938 ± 465 kcal/day; p = .800). Carbohydrate intake over the combined 4-day period was lower in SP (4.7 ± 0.7 g·kg-1 BM·day-1) vs. YP (6.0 ± 1.5 g·kg-1 BM·day-1, p = .006) and SP failed to meet recommended carbohydrate intakes on match and training days. Conversely, recommended protein intakes were met for SP (1.9 ± 0.3 g·kg-1 BM·day-1) and YP (1.7 ± 0.4 g·kg-1 BM·day-1), with no differences between groups (p = .286). Accordingly, both groups met or exceeded recommended daily protein intakes on individual match, postmatch, rest and training days. A similar “balanced” daytime pattern of protein intake was observed in SP and YP. To conclude, SP increased protein intake on match and training days to a greater extent than YP, however at the expense of carbohydrate intake. The daytime distribution of protein intake for YP and SP aligned with current recommendations of a balanced protein meal pattern.
Armand E.O. Bettonviel, Naomi Y.J. Brinkmans, Kris Russcher, Floris C. Wardenaar and Oliver C. Witard
Benita J. Lalor, Shona L. Halson, Jacqueline Tran, Justin G. Kemp and Stuart J. Cormack
Australian Football (AF) is an intermittent team sport involving rapid accelerations and decelerations, collisions, and large distances covered at a high intensity. 1 The competitive season can produce high levels of fatigue, and optimizing recovery in order to maximize performance is critical. 1
Corall S. Hjert and Cynthia J. Wright
after FR application. Characteristics of the included studies are presented in Table 1 . Table 1 Characteristics of Included Studies Authors Characteristics MacDonald et al. 2 Pearcey et al. 3 Fleckenstein et al. 9 Laffaye et al. 13 Study title Foam Rolling as a Recovery Tool after an Intense Bout of
Ian McGinnis, Justin Cobb, Ryan Tierney and Anne Russ
recovery from concussion, both in athletic and general populations. 4 – 6 The vestibular system’s regulation of balance, spatial orientation, and gaze stability plays a key role in athletic tasks and many activities of daily living. Disruption of the vestibular system can exacerbate other symptoms of
Brett S. Pexa, Eric D. Ryan, Elizabeth E. Hibberd, Elizabeth Teel, Terri Jo Rucinski and Joseph B. Myers
’s posterior shoulder to a high amount of eccentric muscle activity and causes significant trauma to the musculoskeletal system. Despite acute changes in CSA, 19 , 22 range of motion, 7 – 9 and glenohumeral strength, 23 there is still limited evidence defining the time to recovery of these variables
Jonathan Magee, Ramón Spaaij and Ruth Jeanes
This paper builds on the concept of mental health recovery to critically examine three football projects in the United Kingdom and their effects on the recovery process. Drawing on qualitative research on the lived experiences of mental health clients and service providers across the three projects, we explore the role of football in relation to three components of recovery: engagement, stigma, and social isolation. The findings indicate how the projects facilitated increased client engagement, peer supports, and the transformation of self-stigma. The perception of football as an alternative setting away from the clinical environment was an important factor in this regard. Yet, the results also reveal major limitations, including the narrow, individualistic conceptualization of both recovery and stigma within the projects, the reliance on a biomedical model of mental illness, and the potentially adverse consequences of using football in mental health interventions.
Gavriil G. Arsoniadis, Gregory C. Bogdanis, Gerasimos Terzis and Argyris G. Toubekis
exhaustion was reduced over a week of concurrent strength and endurance training, but the energy cost of submaximal exercise was unchanged 9 hours after the strength training sessions. 11 Strength training characteristics and subsequent endurance training intensity as well as the recovery period may be
Ned Brophy-Williams, Matthew W. Driller, Cecilia M. Kitic, James W. Fell and Shona L. Halson
To determine the effect of wearing compression socks between repeated running bouts on perceptual, physiological, and performance-based parameters.
Twelve well-trained male runners (mean ± SD 5-km time 19:24 ± 1:19 [min:s]) recorded their perceptions of the efficacy of compression socks for recovery before completion of 2 experimental sessions. Each session consisted of two 5-km running time trials (TT1 and TT2) on a treadmill, with a 1-h recovery period between. In a randomized crossover design, 1 session required participants to wear compression socks during the recovery period, and no compression socks were worn between TTs in the other session (control).
Running performance between TT1 and TT2 for runners wearing compression socks was similar between TTs (mean Δ 5.3 ± 20.7 s, d = 0.07, P = .20), whereas for control runners, performance significantly decreased in the second TT (mean Δ 15.9 ± 13.3 s, d = 0.19, P < .01). When grouped by perception of efficacy for compression socks, participants with strong beliefs (n = 7) experienced improved subsequent running performance with compression socks (mean Δ –3.6 ± 19.2 s, d = 0.05, P = .32) compared with those with neutral or negative perceptions (n = 5; mean Δ 17.9 ± 17.0 s, d = 0.19, P = .04). Cross-sectional area of the calf and muscle soreness were significantly reduced during the recovery period with the use of compression socks (P < .01), whereas ratings of fatigue showed no difference between conditions.
Wearing compression socks between repeated running bouts can aid recovery and subsequent performance. Furthermore, subsequent exercise performance may be even further enhanced when athletes believe in the efficacy of compression socks to assist in recovery between exercise bouts.
David S. Rowlands, Rhys M. Thorp, Karin Rossler, David F. Graham and Mike J. Rockell
Carbohydrate ingestion after prolonged strenuous exercise enhances recovery, but protein might also be important. In a crossover with 2-wk washout, 10 cyclists completed 2.5 h of intervals followed by 4-h recovery feeding, provided 218 g protein, 435 g carbohydrate, and 79 g fat (protein enriched) or 34 g protein, 640 g carbohydrate, and 79 g fat (isocaloric control). The next morning, cyclists performed 10 maximal constant-work sprints on a Velotron cycle ergometer, each lasting ~2.5 min, at ~5-min intervals. Test validity was established and test reliability and the individual response to the protein-enriched condition estimated by 6 cyclists’ repeating the intervals, recovery feeding, and performance test 2 wk later in the protein-enriched condition. During the 4-h recovery, the protein-enriched feeding had unclear effects on mean concentrations of plasma insulin, cortisol, and growth hormone, but testosterone was 25% higher (90% confidence limits, ± 14%). Protein enrichment also reduced plasma creatine kinase by 33% (±38%) the next morning and reduced tiredness and leg-soreness sensations during the sprints, but effects on mean sprint power were unclear (–1.4%, ±4.3%). The between-subjects trial-to-trial coefficient of variation in overall mean sprint power was 3.1% (±3.4%), whereas the variation in the protein-enriched condition was 5.9% (±6.9%), suggesting that individual responses to the protein-enriched treatment contributed to the unclear performance outcome. To conclude, protein-enriched recovery feeding had no clear effect on next-day performance.
Benjamin G. Serpell, Barry G. Horgan, Carmen M.E. Colomer, Byron Field, Shona L. Halson and Christian J. Cook
Sleep is regarded as one of the best recovery strategies available to elite athletes, with sleep playing an important role in performance, cognitive function, mood, illness, and metabolism. 1 Evidence suggests that athletes may have poorer sleep quality and quantity than the general population, 2