Journal of Strength and Conditioning Research This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Preconditioning Strategies Before Maximum Clean Performance in Female Weightlifters
Kelekian, GK, Zaras, N, Stasinaki, AN, Spiliopoulou, P, Karampatsos, G, Bogdanis, G, and Terzis, G. Preconditioning strategies before maximum clean performance in female weightlifters. J Strength Cond Res 36(8): 2318–2321, 2022—The aim of the study was to examine the acute effect of performing clean pulls with either 85% or 120% one repetition maximum (1RM), on subsequent clean performance, in female Olympic weightlifters. Eight competitive female Olympic weightlifters (age, 22.9 ± 5.8 years; height, 1.67 ± 0.06 m; training experience, 6.1 ± 3.9 years; clean performance, 66.3 ± 3.9 kg), performed clean pulls either...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Research Notes Source Type: research

Effects of an International Tournament on Heart Rate Variability and Perceived Recovery in Elite Water Polo Players
Botonis, PG, Smilios, I, Platanou, TI, and Toubekis, AG. Effects of an international tournament on heart rate variability and perceived recovery in elite water polo players. J Strength Cond Res 36(8): 2313–2317, 2022—The purpose of the study was to evaluate the effects of an international tournament participation in vagal-related heart rate variability and perceived recovery among elite water polo players. Nine elite water polo players participated in an intensified training week (pretournament) and then traveled abroad to take part in an international tournament including 3 high-competitive matches during a 4-day peri...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

The Effect of Normobaric Hypoxia on Resistance Training Adaptations in Older Adults
Allsopp, GL, Hoffmann, SM, Feros, SA, Pasco, JA, Russell, AP, and Wright, CR. The effect of normobaric hypoxia on resistance training adaptations in older adults. J Strength Cond Res 36(8): 2306–2312, 2022—The effect of normobaric hypoxia on strength, body composition, and cardiovascular fitness was investigated after a resistance training intervention in older adults. A single-blinded, randomized control trial recruited 20 healthy adults aged 60–75 years for an 8-week resistance training intervention in normoxia (n = 10) or normobaric hypoxia (14.4% O2; n = 10). Subjects performed 2 sessions per week of upper-body a...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

The Influence of Pilates Exercises on Body Composition, Muscle Strength, and Gait Speed in Community-Dwelling Older Women: A Randomized Controlled Trial
The objective of this study was to analyze the effects of Pilates exercises on body composition, handgrip strength, and physical performance among community-dwelling Spanish women aged 60 and older. A randomized controlled trial of a 12-week Pilates training program was conducted. A total of 109 women were randomly allocated to either a control (n = 54) or a Pilates (n = 55) group. Body composition was evaluated by bioelectrical impedance. Body mass index (BMI), percentage of body fat, and height-adjusted skeletal muscle mass index (SMI) were assessed before and immediately after the intervention, as were physical performa...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Effect of Protective Equipment on Firefighters' External and Internal Workloads During a Simulated Rescue Intervention
This study aimed to test the relationships and compare different workload methods to discriminate 3 protective equipment conditions based on simulated rescue intervention. The protective equipment was (a) personal protective clothing (PPC); (b) PPC and a self‐contained breathing apparatus (SCBA), including a cylinder, a full‐face piece, and a breathing regulator; and (c) PPC and only the cylinder of the SCBA (SCBAc). Workload was determined using methods based on heart rate (HR), perceived exertion (sRPE), acceleration, and an indirect method based on postexercise HR variability. Differences between conditions were ana...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Well-Being, Physical Fitness, and Health Profile of 2,203 Danish Girls Aged 10–12 in Relation to Leisure-time Sports Club Activity—With Special Emphasis on the Five Most Popular Sports
This study investigated the relationship between leisure-time sports club activities and well-being as well as physical health parameters in 10–12-year-old Danish girls. Two thousand two hundred three girls took part in the study, which included questionnaires on participation in leisure-time sports clubs, well-being, Yo-Yo intermittent recovery level 1 children's test, long jump, balance tests, body composition, blood pressure (BP), and resting heart rate (RHR). Data were analyzed according to whether the girls participated in leisure-time sport and according to the 5 most frequently reported sports. Girls enrolled in l...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Reliability and Validity of a Method for the Assessment of Sport Rock Climbers' Isometric Finger Strength
Torr, O, Randall, T, Knowles, R, Giles, D, and Atkins, S. The reliability and validity of a method for the assessment of sport rock climbers' isometric finger strength. J Strength Cond Res 36(8): 2277–2282, 2022—Isometric strength of the finger flexors is considered to be one of the main physical determinants of sport rock climbing performance. We set out to determine the test-retest reliability and criterion validity of a low resource maximal isometric finger strength (MIFS) testing protocol that uses a pulley system to add or remove weight to/from a climber's body. To determine test-retest reliability, 15 subjects' M...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Physical, Biochemical, and Neuromuscular Responses to Repeated Sprint Exercise in Eumenorrheic Female Handball Players: Effect of Menstrual Cycle Phases
Graja, A, Kacem, M, Hammouda, O, Borji, R, Bouzid, MA, Souissi, N, and Rebai, H. Physical, biochemical, and neuromuscular responses to repeated sprint exercise in eumenorrheic female handball players: effect of menstrual cycle phases. J Strength Cond Res 36(8): 2268–2276, 2022—Very few studies have been interested in the relationship between ovarian hormones and physiological function in female athletes. The aim of this study was to assess the effect of menstrual phases (MP) on physical, neuromuscular, and biochemical responses after repeated sprint exercise (RSE) in female handball players. Ten eumenorrheic athletes (...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Acute Effects of Different Warm-up Protocols on Sports Performance in Elite Male Collegiate Handball Players
This study aimed to examine the effects of 3 different warm-up protocols on subsequent sports performance in elite male collegiate handball players. Fifteen handball players (19.0 ± 2.4 years) completed 3 separated randomly sequenced experimental visits. During each visit, they started with different warm-up protocols (traditional warm-up [TRAD] vs. warm-up with core stability exercises [CORE] vs. warm-up with elastic band exercises [ELAS]) and completed with a series of randomly ordered sport-specific performance testing measurements: 30-m sprint, countermovement jump, medicine ball overhead forward throw, and standing a...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Short-Term Effects of “Composite” Training on Strength, Jump, and Sprint Performance in Hurling Players
In conclusion, “composite” training is effective in enhancing fast stretch-shortening cycle efficiency inducing CMJ force and power augmentation. However, “composite” and sprint training are effective training approaches for enhancing maximal strength and sprint performance in a time efficient manner in hurling players. (Source: Journal of Strength and Conditioning Research)
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Effects of a 14-Day High-Intensity Shock Microcycle in High-Level Ice Hockey Players' Fitness
This study aimed to investigate the effects of adding a 14-day off-ice high-intensity training (HIT) shock microcycle to the usual training content of the pre-season preparation of high-level male ice hockey players' fitness. Fourteen players were randomly assigned to off-ice HIT (n = 7) or usual pre-season training (control, n = 7). For the HIT group, additional off-ice training content included 2 sessions of repeated-maximal resistance training, 2 sessions of repeated-sprint training, and 2 sessions of high-intensity intermittent training. Control group performed equal number of off-ice sessions using traditional strengt...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Effects of 10 Months of Speed, Functional, and Traditional Strength Training on Strength, Linear Sprint, Change of Direction, and Jump Performance in Trained Adolescent Soccer Players
This study showed significantly superior performance increases with traditional strength training compared with sprint and jump training and functional training for maximum strength (compared with all other groups g = 0.98–1.61), SJ (g = 0.52–0.87 compared with FGT and CG; not significantly different from PSTG), COD (direction of rotation right: compared with all other groups g = 1.58–2.12; direction of rotation left: no significant differences), and 20-m LS (compared with all other groups g = 0.86–1.39) performance over time. Traditional strength training is recommended to increase strength and speed-strength vari...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Lower Extremities Strength Differences in Female Volleyball Players With Stage 1 Patellar Tendinopathy
Kabacinski, J, Murawa, M, Fryzowicz, A, Gorwa, J, and Dworak, LB. Lower extremities strength differences in female volleyball players with stage 1 patellar tendinopathy. J Strength Cond Res 36(8): 2230–2235, 2022—The main purpose of the study was to compare the muscle strength between the involved knee (IK) and uninvolved knee (UK) in 12 female volleyball players with stage 1 chronic patellar tendinopathy. Evaluation included the isometric maximal strength to body mass (MS/BM) of the lower extremities extensors for unilateral and bilateral conditions, concentric isokinetic peak torque to body mass (PT/BM) of the hamstr...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Validation of Internal and External Load Metrics in NCAA D1 Women's Beach Volleyball
Tometz, MJ, Jevas, SA, Esposito, PM, and Annaccone, AR. Validation of internal and external load metrics in NCAA D1 women's beach volleyball. J Strength Cond Res 36(8): 2223–2229, 2022—The purpose of this study was to determine the validity of internal and external load metrics in NCAA D1 women's beach volleyball. Subjects included 13 NCAA D1 women's beach volleyball players (age: 20.3 ± 1.4 years). A total of 578 data points were analyzed from 51 team training sessions, including practice, games, and sport-specific conditioning during the pre-season semester (15 weeks). Data points included Edward's training impulse ...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research

Can Team-Sport Athletes Accurately Run at Submaximal Sprinting Speeds? Implications for Rehabilitation and Warm-Up Protocols
Darrall-Jones, J, Roe, G, Cremen, E, and Jones, B. Can team-sport athletes accurately run at submaximal sprinting speeds? Implications for rehabilitation and warm-up protocols. J Strength Cond Res 36(8): 2218–2222, 2022—The aim of this study is to examine the ability of team-sport athletes to accurately run at a range of submaximal sprint velocities (60–90% maximal velocity; Vmax) under verbal instruction without any objective feedback. Twelve professional male rugby union players (age 19.7 ± 0.9 years, body mass 98.3 ± 13.9 kg, height 184.0 ± 7.5 cm) were verbally instructed to complete three 40-m sprints at each...
Source: Journal of Strength and Conditioning Research - August 1, 2022 Category: Sports Medicine Tags: Original Research Source Type: research