OMNI-Resistance Exercise Scale Research Articles

Multicomponent and power training with elastic bands improve metabolic and inflammatory parameters, body composition and anthropometry, and physical function in older women with metabolic syndrome: A 20-week randomized, controlled trial

PurposeThis study aimed to explore the effects of 20 weeks of multicomponent or power training with elastic bands (EBs) on metabolic and inflammatory blood parameters, body composition, anthropometry, and physical function in older women with metabolic syndrome (MS). MethodsNinety participants were randomly assigned to a multicomponent (MCG; n = 30), power (PG; n = 30), or a control group (CG; n = 30). The MCG performed balance, slow-speed strength, and aerobic training, twice per week. The PG completed a high-speed resistance training program twice per week, composed of three to four sets of ten repetitions of six overall body exercises at a perceived rating of effort for the first repetition of 3–4 on the OMNI-Resistance Exercise Scale EB. MS-related variables (glucose, triglycerides, and waist circumference) and cardiometabolic risk factors (high-density lipoprotein [HDL], glycosylated hemoglobin, total cholesterol, low-density lipoprotein cholesterol [LDL], C-reactive protein, and anthropometric profile) were assessed. Physical function was evaluated through balance, strength, and mobility tests. ResultsAn analysis of variance revealed that both training groups similarly improved most glycemic and lipidic profile parameters (p ≤ 0.006; d ≥ 0.46), body composition and anthropometry (p < 0.001; d ≥ 0.41), and physical function (p ≤ 0.005; d ≥ 0.69). Opposed to the PG, the MCG improved balance (p < 0.001; d = 0.96) and decreased the inflammatory status by downregulating C-reactive protein (p = 0.003; d = 0.47). On the other hand, the PG exhibited improvements in handgrip strength (p = 0.006; d = 0.48), while the MCG did not. ConclusionTherefore, multicomponent and power training with EBs are plausible strategies for improving the cardiometabolic health status and physical function in older women with MS.

Prescribing hand strengthening exercise for patients with rheumatoid arthritis; clinical cues influencing occupational therapists' and physiotherapists' judgements.

To explore the clinical judgements of therapists in prescribing the intensity of hand strengthening exercise in rheumatoid arthritis (RA). Phase I: Eleven therapists knowledgeable in treating patients with RA subjectively identified seven clinical cues. These were incorporated into 54 hypothetical patient case scenarios. Therapists with ≥2years post-registration experience and current or recent experience in treating patients with RA were asked to assess 69 case scenarios in total (54+15 repeats) and judge what intensity of hand strengthening exercise they would prescribe using the OMNI-Resistance Exercise Scale of perceived exertion. Using responses to the repeated cases, the Cochran-Weiss-Shanteau index of expertise was used to identify therapists who prescribed more consistently. Multiple regression was used to determine which clinical cues were most strongly associated with the intensity of exercise prescribed. A sub-group analysis explored differences between consistent and inconsistent prescribers. Fifty-three therapists took part. Thirty completed all 69 case scenarios. Across all therapists, the three most important clinical cues associated with lower intensity of exercise prescribed were (1) Patient's reported pain intensity whilst practising the exercise (β=-1.150, p<0.001), (2) Disease activity (β=-0.425, p<0.001) and (3) average hand pain over the last week (β=-0.353 p<0.001). Twelve therapists were categorised as consistent prescribers. This group relied on fewer clinical cues (three vs. seven) when judging what intensity of exercise to prescribe. This study provides insights into how therapists prescribe hand exercises. Intensity of hand strengthening exercise was influenced by three key clinical cues, including pain intensity and disease activity.

Effects of resistance training combined with balance training on physical function among older adults: a protocol for a randomised controlled trial

IntroductionThe world’s population is ageing. Age-related declines in physical function negatively affect the quality of life but may be ameliorated by certain types of exercise. The purpose of this study...

Response to Moderate and Vigorous Aerobic/Resistance Exercise in a Woman With Long-COVID

Response to Moderate and Vigorous Aerobic/Resistance Exercise in a Woman With Long-COVID

PERCEIVED SELF-REPORT OF EFFORT DURING ROTATOR CUFF & SCAPULAR REHABILITATIVE EXERCISE IN PATIENTS AFTER SHOULDER SURGERY.

Rehabilitation following shoulder surgery involves the use of resistive exercise but dosing of these -exercises historically employs multiple sets of pre-determined repetitions and few reports document the perceived effort encountered by patients during these exercises for both elastic resistance and free-weights. The OMNI-Resistance Exercise Scale (OMNI-RES) has been tested and applied as a measure of perceived exertion (RPE) for resistive exercise but has not gained widespread acceptance as an optimal method for physical therapists to document RPE during rehabilitation of shoulder surgery. To generate descriptive values of RPE encountered during common shoulder exercises of varying resistance in patients following shoulder surgery as well as provide a comparative analysis between perceived exertion ratings of similar exercise movement patterns using elastic and traditional isotonic resistance. Descriptive Cross-sectional Cohort. Sixty-six subjects (mean age 53.3 + 12.8 years) were included in this study following shoulder surgery (RC repair n=22, labral repair n=10, SA n=34). Perceived exertion using the OMNI-RES was recorded during performance of seven rotator cuff and scapular rehabilitation exercises at 6- and 12-weeks following surgery. Mean RPE using OMNI-RES in combined surgical groups ranged between 3.6 and 5.7 (mean = 4.50 + 2.1) across all seven exercises (scale 0 = very easy to 10 = extremely hard). From the external rotation (ER) exercise pair, paired t-tests revealed standing ER w/ Thera-band® (ERB) had a significantly higher OMNI-RES score versus sidelying ER w/ cuff weight (SLERW) (mean: 5.13 vs 4.41, p = 0.001) while the extension exercise pair consisting of standing shoulder extension w/ band (EXTB) and prone extension w/ cuff weight (PEXTW) showed no significant difference in OMNI-RES score (mean: 3.54, 3.67, p = 0.626). Commonly prescribed resistance exercise in the rehabilitation following shoulder surgery show light-moderate ratings of perceived exertion at both 6 & 12 week post-operative timepoints across three surgical procedures. 3b.

Development and validation of a cumulative exposure shoulder risk assessment tool based on fatigue failure theory

Objective To present a new risk assessment tool for shoulder intensive occupational tasks based on fatigue failure theory. Methods The tool estimates cumulative damage (CD) based on shoulder moments and loading cycles using an S–N curve derived from in vitro tendon fatigue failure tests. If multiple shoulder tasks are performed, the CD for each is summed. In the validation, 293 workers were evaluated for five separate shoulder outcomes. Logistic regression was used to assess the log CD against five shoulder outcomes adjusted for covariates including age, sex, body mass index (BMI), and plant site. Results Both crude and adjusted logistic regression results demonstrated strong dose-response associations between the log CD measure and all five shoulder outcomes (continuous ORs ranged from 2.12 to 5.20). Conclusions The CD measure of The Shoulder Tool demonstrated dose-response relationships with multiple health outcomes. This provides further support that MSDs may be the result of a fatigue failure process. Practitioner summary This study presents a new, easy-to-use risk assessment tool for occupational tasks involving stressful shoulder exertions. The tool is based on fatigue failure theory. The tool was tested against an existing epidemiology study and demonstrated strong relationships to multiple shoulder outcomes. Abbreviations MSD: musculoskeletal disorder; NORA: national occupational research agenda; RULA: rapid upper limb assessment; REBA: rapid entire body assessment; S-N: stress-number of cycles; EDL: extensor digitorum longus; DPC: damage per cycle; CD: cumulative damage; UTS: ultimate tensile strength; FTOV: first time office visit; 3DSSPP: 3-dimensional static strength prediction program; AS: visual analogue scale; BMI: body mass index; CI: confidence interval; Nm: newton-metre; LiFFT: lifting fatigue failure tool; DUET: distal upper extremity tool; OMNI-RES: OMNI resistance exercise scale.

Osteosarcopenic obesity markers following elastic band resistance training: A randomized controlled trial.

The main purpose of present study was to investigate the effects of elastic band resistance training (EBRT) on muscle quality (MQ), serum osteosarcopenic obesity (OSO) biomarkers, bone density and functional profile in women living with OSO syndrome. The eligible participants, aged 65 to 80years, were selected by a physician. Accordingly, a total number of 63 women with OSO syndrome were recruited and assessed using a dual energy X-ray absorptiometry (DXA) instrument, body mass index (BMI)>30kg/m2, -2.5≤T-score≤-1.0 of L1-L4, and/or total femur or femoral neck, and gait speed (10-meter walk test (10MWT))≤1 (m/s2). The 12-week supervised EBRT was designed to train all major muscle groups for 3 times per week. In the first two sessions, the participants became familiar with targeted number of repetitions (TNRs) and OMNI-resistance exercise scale (OMNI-RES) to control exercise intensity. Following an adaptation phase of 4weeks (1 set of 12 rep) using low resistance (yellow Thera-Band), exercise intensity progressively increased by adapting the resistance of the elastic band (based on the Thera-Band® force-elongation table) from yellow to red and further to black. The participants in the control group also received telephone contacts or face-to-face interviews on a weekly basis to maintain their typical diet and activity habits. A two-way repeated measures ANOVA was employed to determine the main changes (2 times×2 groups) after 12weeks of training. Partial eta-squared (ηp2) was additionally used to determine ES in ANOVA tests. At all the stages of data analysis in this RCT, intention-to-treat (ITT) analysis was performed. The results of two-way ANOVA showed significant elevations in E2 (F=7.881, p=0.006, ES=0.079), MQ (F=4.225, p=0.043, ES=0.044), OSO Z-score (F=7.091, p=0.030, ES=0.069), 30-s chair stand test (F=4.599, p=0.036, ES=0.063) and hand grip strength (F=6.411, p=0.013, ES=0.065) in the experimental group compared with those in the controls. Besides, there were no significant differences in CAF (F=0.456, p=0.501, ES=0.005), CTX-I (F=3.427, p=0.067, ES=0.036), adiponectin (F=2.733, p=0.102, ES=0.029), sTnT (F=3.245, p=0.075, ES=0.034), sclerostin (F=2.927, p=0.091, ES=0.034), gait speed (10MWT) (F=1.524, p=0.220, ES=0.016), 6MWT (F=1.169, p=0.284, ES=0.017) and TUG (F=1.502, p=0.225, ES=0.022), BMI (F=0.354, p=0.553, ES=0.004), BFP (F=2.888, p=0.093, ES=0.030), body mass content (BMC) (F=0.030, p=0.862, ES=0.001) and BMD (F=0.335, p=0.564, ES=0.004) between study groups. Taken together, the results of this study illustrated significant differences only in some OSO markers between groups after 48h of chronic EBRT in women affected with OSO syndrome. Further research is thus recommended to design machine-based and elastic band-based training regimes at different intensities and volumes.

Positive Effects of a Short-Term Intense Elastic Resistance Training Program on Body Composition and Physical Functioning in Overweight Older Women.

This study was a randomized controlled trial with pre- and postintervention measures. Participants included OOW, aged 60-85 years, with no medical history of disease that would preclude them from engaging in physical exercise. Participants were randomly divided into the following groups: elastic tubes with handles group (ETG; n = 22), traditional elastic bands group ( n = 21), and control group (CG; n = 20). Exercise groups (EGs) performed the following supervised RTP: 8 weeks, twice weekly, six overall body exercises, and 3-4 sets of 10 repetitions at a rate of perceived exertion (RPE) of 7-9 on the OMNI-Resistance Exercise Scale of perceived exertion. The controls did not change their usual lifestyle. Outcome measures included body composition (BC; total and regional percentage of fat mass [FM] and fat-free mass [FFM]) and physical performance (PP; dynamic and isometric strength, flexibility, agility/dynamic balance, and endurance). Both EGs exhibited significantly reduced FM in the upper limbs (ULs) and trunk and increased FFM in the UL, while the ETG exhibited a significantly increased trunk FFM. Both EGs improved in PP, and there were no intergroup differences. Trunk FM and FFM and meters walked differed significantly between the ETG and CG. The CG did not exhibit any significant changes. Training with elastic devices at a moderate-high RPE produces short-term improvements in BC and PP in OOW.

Concurrent validation of the OMNI-Resistance Exercise Scale of perceived exertion with elastic bands in the elderly

PurposeTo examine the concurrent validity of the OMNI-Resistance Exercise Scale of perceived exertion using elastic bands in elder population. MethodsTwenty-six participants performed three separate sets of 15 repetitions (low- medium- and high-intensity) for 4 different exercises (2 for the upper-limb and 2 for the lower limb), over two different testing sessions. The criterion variables were heart rate and applied force (average and maximum). In addition to these dependent variables, the active muscle and overall body OMNI-RES for elastic bands scores were collected at the end of each repetition. ResultsSignificant differences in heart rate, applied force and OMNI-RES scores between the low- and high-intensity sets were observed. For all the four exercises, high intensity sets elicited higher heart rate, applied force, and RPE compared to the medium and the low overloads. Intraclass correlation coefficient was 0.79 in heart rate and ranged 0.69–0.80 in OMNI-RES Scale and 0.76–0.86 for the applied force. ConclusionA strong positive and linear relationship was observed between the rating of perceived exertion and both heart rate and applied force. The OMNI-RES scale with elastic bands demonstrated to be a valid method for assessing the perceived exertion during resistance exercises and consequently represent a useful tool for prescribing exercise intensity to the elderly.

Session Perceived Exertion Following Traditional and Circuit Resistance Exercise Methods in Older Hypertensive Women.

This study compared session ratings of perceived exertion (SRPE) between traditional multiple-set (TR) and circuit (CI) resistance exercise methods in treated hypertensive women. Fourteen volunteers (69.9 ± 5.6 years) performed two training sessions (TR and CI) in a random order, with the same number of sets, exercises, and loads. SRPE was obtained 30 minutes following each session using Foster's scale. OMNI-resistance exercise scale (OMNI-RES) measures were subsequently taken. Foster's SRPE was not significantly different between sessions (3.8 ± 0.9 TR vs. 3.4 ± 1.0 CI; p = .125), but OMNI-RES values were significantly higher following TR than following CI (5.2 ± 1.3 vs. 4.6 ± 1.5; p = .033). Total session duration was longer for TR (29.3 ± 1.2 vs. 20.0 ± 0.9 minutes; p < .001). Using moderate loads, the CI method did not elicit higher SRPE when compared with TR. Conversely, significantly lower OMNI-RES values follow CI. These results will be useful for prescribing exercise regimens for older hypertensive women.

Motor cortex tDCS does not modulate perceived exertion within multiple-sets of resistance exercises

BACKGROUND: Recent evidences have shown that the motor cortex (MC) may influence the rating of perceived exertion (RPE). Given the potential role of transcranial direct current stimulation (tDCS) in modulate cortical areas related to exercise performance, it is possible that tDCS applied on motor cortex (MC) could also influence the RPE during resistance exercises. OBJECTIVE: This study analyzed the effects of transcranial direct current stimulation on the rating of perceived exertion during multiple sets of resistance exercises. METHODS: Thirteen strength-trained men performed a resistance exercise session after either anodal tDCS or sham stimulation applied over the primary motor cortex. Resistance exercise sessions included 3 sets of 10 repetitions of 6 exercises performed with load of at 85% of 8–12 RM. The RPE was obtained using OMNI-Resistance exercise scale. RESULTS: The RPE assessed at the end of the sessions was similar in tDCS vs. sham condition (6.78 ± 1.48 vs. 6.87 ± 1.49, respectively; p = 0.56). The RPE for each exercise was similar across conditions, except for the second set of bench press (p = 0.04) and first set of seated-row (p = 0.03). CONCLUSION: In conclusion, the RPE during multiple sets of submaximal exercises was not modulated by tDCS applied upon

Rating of Perceived Exertion During Circuit Weight Training: A Concurrent Validation Study.

The aim of this study was to determine whether rating of perceived exertion (RPE) is a valid method to control the effort during the circuit weight training (CWT) in trained men. Ten men (21.3 ± 3.3 years) with previous experience in resistance training (13.1 ± 6.3 months) performed 3 sessions: 1 orientation session and 2 experimental sessions. The subjects were randomly counterbalanced to 2 experimental sessions: CWT or multiple-set resistance training (control). In both sessions, 8 exercises (bench press, leg press 45°, seated row, leg curl, triceps pulley, leg extension, biceps curl, and adductor chair) were performed with the same work: 60% of 1 repetition maximum, 24 stations (3 circuits) or 24 sets (3 sets/exercise), 10 repetitions, 1 second in the concentric and eccentric phases, and rest intervals between sets and exercise of 60 seconds. Active muscle RPEs were measured after each 3 station/sets using the OMNI-Resistance Exercise Scale (OMNI-RES). In this same time, blood lactate was collected. Compared with baseline, both levels of blood lactate and RPE increased during whole workout in both sessions, the RPE at third, 23rd, and 27th minute and the blood lactate at third, seventh, 11th, 15th, 27th, and 31st minute were higher in multiple set compared with CWT. Positive correlation between blood lactate and RPE was observed in both experimental sessions. The results indicated that the RPE is a valid method to control the effort during the CWT in trained men and can be used to manipulate the intensity without the need to perform invasive assessments.

Perception of Muscular Effort During Dynamic Elbow Extension in Multiple Sclerosis

ObjectiveTo investigate the perception of muscular effort in individuals with multiple sclerosis (MS) and healthy controls during dynamic contractions. DesignCase-control study. SettingMS day care center. ParticipantsIndividuals with MS (n=28) and controls (n=28) (N=56). InterventionsNot applicable. Main Outcome MeasuresPerceived muscular effort during dynamic elbow extensions was rated at 9 different weight intensities (10%–90% of 1-repetition maximum) in a single-blind, randomized order using the OMNI-Resistance Exercise Scale. Muscle activity of the triceps brachii muscle (lateral head) was measured via surface electromyography and normalized to maximal voluntary excitation. ResultsAccording to OMNI-level ratings, significant main effects were found for the diagnostic condition (F=27.33, P<.001, η2=.11), indicating 0.7 (95% confidence interval [CI], 0.3–1.1) lower mean OMNI-level ratings for MS, and for the intensity level (F=46.81, P<.001, η2=.46), showing increased OMNI-level ratings for increased intensity levels for both groups. Furthermore, significant main effects were found for the diagnostic condition (F=16.52, P<.001, η2=.07), indicating 7.1% (95% CI, −8.6 to 22.8) higher maximal voluntary excitation values for MS, and for the intensity level (F=33.09, P<.001, η2=.36), showing higher relative muscle activities for increasing intensity levels in both groups. ConclusionsSimilar to controls, individuals with MS were able to differentiate between different intensities of weight during dynamic elbow extensions when provided in a single-blind, randomized order. Therefore, perceived muscular effort might be considered to control resistance training intensities in individuals with MS. However, training intensity for individuals with MS should be chosen at approximately 1 OMNI level lower than recommended, at least for dynamic elbow extension exercises.

A session of resistance exercise increases vasodilation in intermittent claudication patients.

No study has shown the effects of acute resistance exercise on vasodilatory capacity of patients with peripheral artery disease. The aim of this study was to analyse the effects of a single session of resistance exercise on blood flow, reactive hyperemia, plasma nitrite, and plasma malondialdehyde in patients with peripheral artery disease. Fourteen peripheral artery disease patients underwent, in a random order, 2 experimental sessions: control (rest for 30 min) and resistance exercise (8 exercises, 2 sets of 10 repetitions at an intensity of 5-7 in the OMNI Resistance Exercise Scale). Blood flow, reactive hyperemia, plasma nitrite, and malondialdehyde were measured before and 40 min after the interventions in both sessions. Data were compared between sessions by analysis of covariance, using pre-intervention values as covariates. The increases in blood flow, reactive hyperemia, and log plasma nitrite were greater (p ≤ 0.05) after resistance exercise than the control session (3.2 ± 0.1 vs. 2.7 ± 0.1 mL · 100 mL(-1) tissue · min(-1), 8.0 ± 0.1 vs. 5.7 ± 0.1 AU, and 1.36 ± 0.01 vs. 1.26 ± 0.01 μmol ∙ L(-1), respectively). On the other hand, malondialdehyde was similar between sessions (p > 0.05). In peripheral arterial disease patients, a single session of resistance exercise increases blood flow and reactive hyperemia, which seems to be mediated, in part, by increases in nitric oxide release.

Perception of muscular effort in multiple sclerosis

Background Resistance exercise is effective in improving muscle strength and preventing muscle weakness in multiple sclerosis (MS) patients. Control of resistance training intensity based on perceived muscular effort is applicable to healthy individuals, yet there is no evidence of its utility for MS patients. Objective To compare perception of muscular effort in MS patients to healthy controls. Methods Based on their perception of muscular effort, twenty-five MS patients and twenty-eight controls adjusted static elbow extension tasks according to five levels on the OMNI-Resistance Exercise Scale. Elbow extension strength and muscle activity were measured via load cell dynamometer and surface electromyography (EMG) and related to each participant's maximal voluntary contraction (MVC) strength and muscle activity. Two-way analysis of variance was used to evaluate statistical significance. Results There were no statistically significant differences between MS patients and healthy controls, they produced similar relative torque values (F1 = 0.196; p > 0.05) and extensor muscle activities (F(2,617) = 1.556; p > 0.05) across all effort levels. Conclusion No differences were found in the perception of muscular effort in MS patients and the age-matched control group. Future studies should explore, whether rating of perceived exertion is an effective instrument to control resistance training intensity in MS patients.

Perception of muscular effort in multiple sclerosis

Resistance exercise is effective in improving muscle strength and preventing muscle weakness in multiple sclerosis (MS) patients. Control of resistance training intensity based on perceived muscular effort is applicable to healthy individuals, yet there is no evidence of its utility for MS patients. To compare perception of muscular effort in MS patients to healthy controls. Based on their perception of muscular effort, twenty-five MS patients and twenty-eight controls adjusted static elbow extension tasks according to five levels on the OMNI-Resistance Exercise Scale. Elbow extension strength and muscle activity were measured via load cell dynamometer and surface electromyography (EMG) and related to each participant's maximal voluntary contraction (MVC) strength and muscle activity. Two-way analysis of variance was used to evaluate statistical significance. There were no statistically significant differences between MS patients and healthy controls, they produced similar relative torque values (F1 = 0.196; p > 0.05) and extensor muscle activities (F(2,617) = 1.556; p > 0.05) across all effort levels. No differences were found in the perception of muscular effort in MS patients and the age-matched control group. Future studies should explore, whether rating of perceived exertion is an effective instrument to control resistance training intensity in MS patients.

Concurrent Validation of the OMNI-Resistance Exercise Scale of Perceived Exertion With Thera-Band Resistance Bands

The concurrent validity of the OMNI-Resistance Exercise Scale (OMNI-RES) of perceived exertion for use with elastic bands was studied during isotonic resistance exercises. Twenty healthy, physically active subjects completed both familiarization and testing sessions. The criterion variables were myoelectric activity, recorded by electromyography, and heart rate, recorded by a heart rate monitor. The subjects performed 2 separate sets of 15 repetitions in each of the 2 testing sessions and for each of the exercises applied (i.e., frontal and lateral raises). One set was carried out with the separation between the hands gripping the elastic band allowing that 15 repetition maximum to be performed in the selected exercise, whereas the other set was carried out with the separation between hands at +50% of the previous grip. The perceived exertion rating for the active muscles and for the overall body, muscular activity, and heart rate were measured during the final repetition of each set. The results showed significant differences (p ≤ 0.001) in myoelectric activity, heart rate, and OMNI-RES scores between the low- and high-intensity sets and the intraclass correlation coefficient was 0.72-0.76. So it can be concluded that the OMNI-RES can be used for monitoring the intensity of exercises when elastic bands are used. This would allow the training stimulus dosage to be precisely controlled in both the session in progress and between different sessions, and allowing to differentiate between different levels of intensity according to the physical aptitudes and special physiological needs of the subjects.

Effects of Exercise Intensity on Rating of Perceived Exertion During a Multiple-Set Resistance Exercise Session

The aim of this study was to analyze the effects of intensity on rating of perceived exertion (RPE) during a multiple-set resistance exercise session. Fourteen men (22.9 ± 3.8 years) with previous experience in resistance training (22.9 ± 3.8 years) performed 2 experimental sessions in random order: resistance exercise at 50% of 1 repetition maximum (1RM) (E50%) and resistance exercise at 70% of 1RM (E70%). In both sessions, 5 exercises (bench press, bent-over row, frontal raises, arm curl, and overhead triceps extension) were performed in 3 sets of 12, 9, and 6 repetitions, respectively. Active muscle RPEs were measured after each repetition using the OMNI-Resistance Exercise Scale (OMNI-RES). In the 3 sets of 5 exercises, the RPE was higher at E70% than that at E50%. The differences in RPE between intensities were observed in both the first and the sixth repetitions for each exercise. In the E70% session, the RPE increased between sets in all exercises, whereas it did not change in the E50% session. In conclusion, the RPE was higher at 70% of 1RM than that at 50% of 1RM. Moreover, in a multiple-set prescription, the RPE did not change between sets with 50% of 1RM, whereas the RPE increased between sets with 70% of 1RM. These findings suggest that RPE can be effectively used to prescribe and monitor resistance exercise intensity during an entire multiple-set exercise session in young men with previous experience in resistance training.

Safety of Using the Adult Omni Resistance Exercise Scale to Determine 1-Rm in Older Men and Women

Older adults may be susceptible to injury during high-intensity resistance exercise. It has been suggested that it may be more protective to predict one-repetition maximum (1-RM) than to measure it because of the high intensity associated with 1-RM testing, but it may be necessary to measure 1-RM for functional, diagnostic, or clinical purposes. The method of using the OMNI Resistance Exercise Scale (OMNI-RES) was examined as a guide for hexagenarian adults in estimating 1-RM. 22 healthy men (M age = 64.3 yr., SD = 3.2) and 27 women (M age = 63.8 yr., SD = 2.8) volunteered. After two weeks of orientation, participants used a predetermined rating of perceived exertion to select resistance in the assessment of 1-RM and again after 12 weeks of training. At the 1-RM trials, participants were asked to report soreness or injury during or after the exercise sessions. There were no reported incidences of injury during the current investigation. The current results provide a practical method to estimate 1-RM in older adults. As such, the OMNI-RES can be used safely in a potentially at-risk population.

Strength Tracking Using the OMNI Resistance Exercise Scale in Older Men and Women

Strength tracking uses ratings of perceived exertion (RPE) as a reference value to determine changes in strength as a function of a resistance training program. The purpose of this investigation was to determine if the OMNI Resistance Exercise Scale (OMNI-RES) could be used to track training-induced strength changes in older adults. Twenty-two men (64.3 + 3.2 years) and 27 women (63.8 + 2.8 years) volunteered to participate. Subjects underwent a maximal lifting test, during which they estimated perceived exertion before and following 12 weeks of resistance exercise training. Leg press (LP), latissimus dorsi pull-down (LA), chest press (CP), leg extension (LE), leg curl (LC), arm extension (AE), and arm curl (AC) were performed. Paired samples t-tests were used to compare resistance lifted pre- and post-training at each criterion RPE (4, 6, and 8). One repetition maximum increased from pretraining to post-training (p < 0.05) for all exercises. The resistance lifted at each criterion RPE also increased (p < 0.05) during the 12-week training session for every exercise. Older adults lifted more weight at 3 criterion RPEs as their strength increased, providing an RPE-based procedure to track strength training changes using the OMNI-RES. As such, it seems that RPE from the OMNI-RES can be used to track strength in older adults.