Sleep and Physical Performance: A Case Study of Collegiate Women’s Division 1 Basketball Players

The aim of the study was to investigate the effects of 4-week small-sided games (SSG) and high-intensity interval training with changes of direction (HIT-COD) on physical performance and specific technical skills in female collegiate basketball players. Nineteen players were divided into SSG (n = 9) and HIT-COD (n = 10) groups, that performed either SSG or HIT-COD three times per week for 4 weeks during the pre-season. Players’ heart rate (HR) and perceived exertion responses (RPE) were assessed during the intervention. Before and after the intervention period, performances were assessed with 30-15 intermittent fitness test (30-15IFT), repeated sprint ability (RSA) test, modified agility T-test (MAT), countermovement jump (CMJ), 20-m sprint, shooting accuracy test, 1 min shooting test, passing test, defensive movement test and control dribble test. Both training interventions led to similar physiological and perceived exertion responses, showing no significant differences in HR ( P = .49, d = 0.2) and RPE ( P = .77, d = 0.1) between groups. Significant improvements were observed in 30-15IFT (SSG: 4.1%, d = 1.5; HIT-COD: 4.2%, d = 1.7), RSAmean (SSG: −2.2%, d = 1.0; HIT-COD: −1.9%, d = 1.0), RSAbest (SSG: −2.0%, d = 0.9; HIT-COD: −2.1%, d = 1.1), MAT (SSG: −7.2%, d = 1.7; HIT-COD: 5.7%, d = 1.5), defensive movement test (SSG: −5.1%, d = 2.1; HIT-COD: −5.8%, d = 1.8) and control dribble test (SSG: −3.4%, d = 1.0; HIT-COD: −2.6%, d = 1.0). The only significant group × time interaction was found ( P = .032, [Formula: see text] = 0.24), with SSG improving 1 min shooting (22.4%, d = 1.0) and HIT-COD performing slightly worse (−2.6%, d = 0.1) after a 4-week intervention. The current study suggests that using SSG is more effective than HIT-COD for female collegiate basketball players in pre-season, since SSG improves physical performance and basketball-specific movements as well as shooting abilities after a 4-week intervention.

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Vitamin D in Basketball Players: Current Evidence and Future Directions

Sports Health A Multidisciplinary Approach ◽

10.1177/19417381211019343 ◽

2021 ◽

pp. 194173812110193

Author(s):

Emilija Stojanović ◽

Dragan Radovanović ◽

Tamara Hew-Butler ◽

Dušan Hamar ◽

Vladimir Jakovljević

Keyword(s):

Systematic Review ◽

Vitamin D ◽

Body Composition ◽

Physical Performance ◽

Bone Health ◽

Meta Analysis ◽

Vitamin D Supplementation ◽

Current Evidence ◽

Basketball Players ◽

Level Of Evidence

Context: Despite growing interest in quantifying and correcting vitamin D inadequacy in basketball players, a critical synthesis of these data is yet to be performed to overcome the low generalizability of findings from individual studies. Objective: To provide a comprehensive analysis of data in basketball pertaining to (1) the prevalence of vitamin D inadequacy; (2) the effects of vitamin D supplementation on 25-hydroxyvitamin D [25(OH)D] concentration (and its association with body composition), bone health, and performance; and (3) crucial aspects that warrant further investigation. Data Sources: PubMed, MEDLINE, ERIC, Google Scholar, SCIndex, and ScienceDirect databases were searched. Study Selection: After screening, 15 studies were included in the systematic review and meta-analysis. Study Design: Systematic review and meta-analysis. Level of Evidence: Level 3. Data Extraction: The prevalence of vitamin D inadequacy, serum 25(OH)D, body composition, stress fractures, and physical performance were extracted. Results: The pooled prevalence of vitamin D inadequacy for 527 basketball players in 14 studies was 77% ( P < 0.001; 95% CI, 0.70-0.84). Supplementation with 4000 IU/d and 4000 IU/wk (absolute mean difference [AMD]: 25.39 nmol/L; P < 0.001; 95% CI, 13.44-37.33), as well as 10,000 IU/d (AMD: 100.01; P < 0.001; 95% CI, 70.39-129.63) vitamin D restored 25(OH)D to normal concentrations. Body composition data revealed inverse correlations between changes in serum 25(OH)D (from pre- to postsupplementation) and body fat ( r = −0.80; very large). Data concerning positive impacts of vitamin D supplementation on bone health and physical performance remain sparse. Conclusion: The high proportion of vitamin D inadequacy underscores the need to screen for serum 25(OH)D in basketball players. Although supplementation restored vitamin D sufficiency, the beneficial effects on bone health and physical performance remain sparse. Adiposity can modulate 25(OH)D response to supplementation.

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Observational case study - Vitamin 25(OH)D status of professional basketball players and its impact on athletic performance and recovery

Journal of the International Society of Sports Nutrition ◽

10.1186/1550-2783-12-s1-p55 ◽

2015 ◽

Vol 12 (S1) ◽

Cited By ~ 1

Author(s):

Marc Bubbs

Keyword(s):

Athletic Performance ◽

Basketball Players ◽

Professional Basketball

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Relationship between functional movement screen results and physical performance parameters in basketball players: preliminary results

Medicina dello Sport ◽

10.23736/s0025-7826.21.03984-3 ◽

2021 ◽

Vol 74 (3) ◽

Author(s):

Giuseppe FRANCAVILLA ◽

Valerio BONAVOLONTÀ ◽

Stefania CATALDI ◽

Vito F. FASANO ◽

Giuseppe MESSINA ◽

...

Keyword(s):

Physical Performance ◽

Functional Movement Screen ◽

Performance Parameters ◽

Basketball Players ◽

Functional Movement ◽

Preliminary Results

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Countermovement Jump Reliability Performed With and Without an Arm Swing in NCAA Division 1 Intercollegiate Basketball Players

The Journal of Strength and Conditioning Research ◽

10.1519/jsc.0000000000002812 ◽

2020 ◽

Vol 34 (2) ◽

pp. 546-558 ◽

Cited By ~ 8

Author(s):

Aaron D. Heishman ◽

Bryce D. Daub ◽

Ryan M. Miller ◽

Eduardo D.S. Freitas ◽

Brett A. Frantz ◽

...

Keyword(s):

Countermovement Jump ◽

Basketball Players ◽

Arm Swing ◽

Division 1

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Effects of a 4-week combined sloped training program in young basketball players’ physical performance

Science & Sports ◽

10.1016/j.scispo.2019.08.001 ◽

2020 ◽

Vol 35 (3) ◽

pp. 172.e1-172.e9

Author(s):

B. Figueira ◽

B. Gonçalves ◽

E. Abade ◽

R. Paulauskas ◽

N. Masiulis ◽

...

Keyword(s):

Training Program ◽

Physical Performance ◽

Basketball Players

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Countermovement Jump Reliability when Performed With and Without an Arm Swing in NCAA Division 1 Basketball Players

Medicine & Science in Sports & Exercise ◽

10.1249/01.mss.0000538208.39002.8d ◽

2018 ◽

Vol 50 (5S) ◽

pp. 669

Author(s):

Aaron D. Heishman ◽

Ryan M. Miller ◽

Eduardo D.S. Freitas ◽

Japneet Kaur ◽

Bianca A.R. Galletti ◽

...

Keyword(s):

Countermovement Jump ◽

Basketball Players ◽

Arm Swing ◽

Division 1

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Case Study: The Effect of Nutritional Intervention on Body Composition and Physical Performance of a Female Squash Player

International Journal of Sport Nutrition and Exercise Metabolism ◽

10.1123/ijsnem.2017-0069 ◽

2018 ◽

Vol 28 (3) ◽

pp. 279-283 ◽

Cited By ~ 2

Author(s):

Christopher Rosimus

Keyword(s):

Vitamin D ◽

Body Composition ◽

Physical Performance ◽

Body Fat ◽

Nutritional Intervention ◽

Energy Restriction ◽

The Body ◽

Full Blood Count ◽

Vitamin D Status

The body composition of a squash player may affect athletic performance as carrying excessive body fat may increase injury risk and impair agility and speed. This case study outlines the effect of a nutritional intervention on body composition, vitamin D status, and physical performance of a female squash player. A structured, 6-week, moderate energy–restricted diet (70–78% of estimated energy requirement of 2,300 kcal) was implemented with weekly support. A daily supplement of vitamin D, omega-3 fatty acids, and a multivitamin and whey protein was used. Full blood count, vitamin D status, body composition, and physical performance assessments were carried out at baseline and Week 6 of intervention. Body composition changes were measured using the BOD POD™ and skinfold calipers. Body fat was 23% at baseline and 22% at Week 6. Mean sum of eight skinfolds was 127.4 ± 2.2 mm at baseline and 107.3 ± 0.4 mm at Week 6. Lean body mass-to-fat mass ratio improved from 3.4 at baseline to 3.7 at Week 6. The greatest increments compared with baseline in serum markers were 25-hydroxyvitamin D3 (68%), ferritin (31%), eosinophils (20%), and triglycerides (16%). All physical performance measures improved, with reactive strength index (4.8%), and on-court repeated speed (6.0%) showing the greatest improvements from baseline. This intervention demonstrates that structured energy restriction alongside appropriately structured strength and conditioning training is an effective way to gradually reduce the body fat and improve the body composition of a female athlete.

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The Concurrent Validity of Session-Rating of Perceived Exertion Workload Obtained Face-to-Face Versus Via an Online Application: A Team Case Study

International Journal of Sports Physiology and Performance ◽

10.1123/ijspp.2019-0908 ◽

2020 ◽

Vol 15 (10) ◽

pp. 1476-1479

Author(s):

Jordan L. Fox ◽

Cody J. O’Grady ◽

Aaron T. Scanlan

Keyword(s):

Heart Rate ◽

Repeated Measures ◽

Concurrent Validity ◽

Perceived Exertion ◽

State Level ◽

Rating Of Perceived Exertion ◽

Basketball Players ◽

Online Application ◽

Face To Face

Purpose: To compare the concurrent validity of session-rating of perceived exertion (sRPE) workload determined face-to-face and via an online application in basketball players. Methods: Sixteen semiprofessional, male basketball players (21.8 [4.3] y, 191.2 [9.2] cm, 85.0 [15.7] kg) were monitored during all training sessions across the 2018 (8 players) and 2019 (11 players) seasons in a state-level Australian league. Workload was reported as accumulated PlayerLoad (PL), summated-heart-rate-zones (SHRZ) workload, and sRPE. During the 2018 season, rating of perceived exertion (RPE) was determined following each session via individualized face-to-face reporting. During the 2019 season, RPE was obtained following each session via a phone-based, online application. Repeated-measures correlations with 95% confidence intervals were used to determine the relationships between sRPE collected using each method and other workload measures (PL and SHRZ) as indicators of concurrent validity. Results: Although all correlations were significant (P < .05), sRPE obtained using face-to-face reporting demonstrated stronger relationships with PL (r = .69 [.07], large) and SHRZ (r = .74 [.06], very large) compared with the online application (r = .29 [.25], small [PL] and r = .34 [.22], moderate [SHRZ]). Conclusions: Concurrent validity of sRPE workload was stronger when players reported RPE in an individualized, face-to-face manner compared with using a phone-based online application. Given the weaker relationships with other workload measures, basketball practitioners should be cautious when using player training workloads predicated on RPE obtained via online applications.

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Effects of Anthropometric Growth and Basketball Experience on Physical Performance in Pre-Adolescent Male Players

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17072196 ◽

2020 ◽

Vol 17 (7) ◽

pp. 2196 ◽

Cited By ~ 2

Author(s):

Natascia Rinaldo ◽

Stefania Toselli ◽

Emanuela Gualdi-Russo ◽

Nicoletta Zedda ◽

Luciana Zaccagni

Keyword(s):

Physical Performance ◽

Upper Limb ◽

Weight Status ◽

Handgrip Strength ◽

T Test ◽

Fat Free Mass ◽

Adolescent Male ◽

Basketball Players ◽

Explosive Strength ◽

Motor Tests

During pre-adolescence, several variables connected to growth and weight status could influence physical performance and technical skills. This study aims to assess the influence of growth-related anthropometric changes, weight status, and basketball experience on physical performance in pre-adolescent basketball players. The sample consisted of 50 male basketball players (12.2 ± 0.4 years-old) included in the U-13 category. Anthropometric characteristics were collected using standard procedures. Physical performance was evaluated by 20 m Dash, T-test, squat jump, countermovement jump, and medicine ball throw. In order to assess growth-related changes, we conducted two surveys within a 10-week time span. Student’s t-test was used to compare the data collected in the two surveys and multiple regression analyses were performed to assess the effects of growth, weight status, and basketball experience on performance. After 10 weeks there was a significant increase in FFM (Fat-Free Mass) and a significant decrease in fat parameters. Moreover, between the two surveys, all motor tests significantly improved. The results of linear regression models showed that changes in %F (percentage of body fat) were significantly associated with speed and agility, while handgrip strength and weight status were associated with upper limb explosive strength. Basketball experience was a significant predictor of all three motor tests. In conclusion, body composition changes, years of experience, and weight status influenced physical performance and players’ motor skills ability, especially speed, agility, and upper limb explosive strength.

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